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Contents

About This Document.....................................................................................................................1

1 System Architecture of the BTS3812AE.................................................................................1-1

2 BTS3812AE Cabinet...................................................................................................................2-12.1 Appearance of the BTS3812AE......................................................................................................................2-22.2 Components of the BTS3812AE.....................................................................................................................2-22.3 Cable Holes of the BTS3812AE.....................................................................................................................2-62.4 Waterproof Kit of the BTS3812AE................................................................................................................2-72.5 Front Cable Connections of the BTS3812AE.................................................................................................2-72.6 Rear Cable Connections of the BTS3812AE................................................................................................2-102.7 Engineering Specifications for the BTS3812AE..........................................................................................2-13

3 Interface Boxes............................................................................................................................3-13.1 Transmission Interface Box of the BTS3812A...............................................................................................3-23.2 Power Interface Box of the BTS3812A..........................................................................................................3-4

4 Boards and Modules of the BTS3812AE................................................................................4-14.1 List of BTS3812AE Boards and Modules.......................................................................................................4-34.2 BESP Board.....................................................................................................................................................4-5

4.2.1 Functions of the BESP Board.................................................................................................................4-64.2.2 Ports on the BESP Board.......................................................................................................................4-74.2.3 DIP Switches on the BESP Board..........................................................................................................4-9

4.3 DCSP Board..................................................................................................................................................4-104.3.1 Ports on the DCSP Board.....................................................................................................................4-10

4.4 HBBI Board...................................................................................................................................................4-114.4.1 Functions of the HBBI Board...............................................................................................................4-114.4.2 Working Environment of the HBBI Board..........................................................................................4-124.4.3 Working Principles of the HBBI Board...............................................................................................4-134.4.4 LEDs and Ports on the HBBI Board....................................................................................................4-14

4.5 HBOI Board..................................................................................................................................................4-154.5.1 Functions of the HBOI Board..............................................................................................................4-164.5.2 Working Environment of the HBOI Board..........................................................................................4-164.5.3 Working Principles of the HBOI Board...............................................................................................4-174.5.4 LEDs and Ports on the HBOI Board....................................................................................................4-18

4.6 HDLP Board..................................................................................................................................................4-19

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4.6.1 Functions of the HDLP Board..............................................................................................................4-204.6.2 Working Environment of the HDLP Board.........................................................................................4-204.6.3 Working Principles of the HDLP Board..............................................................................................4-204.6.4 LEDs and Ports on the HDLP Board...................................................................................................4-22

4.7 HULP Board..................................................................................................................................................4-234.7.1 Functions of the HULP Board..............................................................................................................4-244.7.2 Working Environment of the HULP Board.........................................................................................4-244.7.3 Working Principles of the HULP Board..............................................................................................4-244.7.4 LEDs and Ports on the HULP Board...................................................................................................4-26

4.8 MAFU Module..............................................................................................................................................4-274.8.1 Functions of the MAFU Module..........................................................................................................4-274.8.2 Working Environment of the MAFU Module......................................................................................4-284.8.3 Working Principles of the MAFU Module..........................................................................................4-284.8.4 LEDs and Ports on the MAFU Module................................................................................................4-30

4.9 MTRU Module..............................................................................................................................................4-324.9.1 Functions of the MTRU Module..........................................................................................................4-324.9.2 Working Environment of the MTRU Module......................................................................................4-334.9.3 Working Principles of the MTRU Module..........................................................................................4-334.9.4 LEDs and Ports on the MTRU Module................................................................................................4-35

4.10 NBCB Board...............................................................................................................................................4-374.10.1 Functions of the NBCB Board...........................................................................................................4-37

4.11 NCCU Board...............................................................................................................................................4-374.11.1 Functions of the NCCU Board...........................................................................................................4-384.11.2 Ports on the NCCU Board..................................................................................................................4-38

4.12 NDTI Board.................................................................................................................................................4-394.12.1 Functions of the NDTI Board.............................................................................................................4-394.12.2 Working Environment of the NDTI Board........................................................................................4-404.12.3 Working Principles of the NDTI Board.............................................................................................4-404.12.4 LEDs and Ports on the NDTI Board..................................................................................................4-414.12.5 DIP Switches on the NDTI Board......................................................................................................4-43

4.13 NFAN Module.............................................................................................................................................4-454.13.1 Functions of the NFAN Module.........................................................................................................4-464.13.2 LEDs and Ports on the NFAN Module..............................................................................................4-46

4.14 NMON Board..............................................................................................................................................4-474.14.1 Functions of the NMON Board..........................................................................................................4-474.14.2 Working Environment of the NMON Board......................................................................................4-484.14.3 Working Principles of the NMON Board..........................................................................................4-484.14.4 LEDs and Ports on the NMON Board................................................................................................4-49

4.15 NMPT Board...............................................................................................................................................4-504.15.1 Functions of the NMPT Board...........................................................................................................4-514.15.2 Working Environment of the NMPT Board.......................................................................................4-514.15.3 Working Principles of the NMPT Board............................................................................................4-52

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4.15.4 LEDs and Ports on the NMPT Board.................................................................................................4-534.16 NPMI Board................................................................................................................................................4-55

4.16.1 Functions of the NPMI Board............................................................................................................4-554.16.2 Ports on the NPMI Board...................................................................................................................4-56

4.17 NUTI Board.................................................................................................................................................4-574.17.1 Functions of the NUTI Board.............................................................................................................4-584.17.2 Working Environment of the NUTI Board........................................................................................4-584.17.3 Working Principles of the NUTI Board.............................................................................................4-594.17.4 LEDs and Ports on the NUTI Board..................................................................................................4-604.17.5 DIP Switches on the NUTI Board......................................................................................................4-62

4.18 PMU Module...............................................................................................................................................4-634.18.1 Functions of the PMU Module...........................................................................................................4-644.18.2 Working Environment of the PMU Module......................................................................................4-644.18.3 LEDs and Ports on the PMU Module (BTS3812A)...........................................................................4-644.18.4 DIP Switches on the PMU Module....................................................................................................4-66

4.19 PSU Module................................................................................................................................................4-674.19.1 Functions of the PSU Module............................................................................................................4-674.19.2 Working Environment of the PSU Module........................................................................................4-684.19.3 LEDs and Ports on the PSU Module..................................................................................................4-68

5 BTS3812AE Cables.....................................................................................................................5-15.1 External Power Cables and PGND Cables of the BTS3812AE......................................................................5-2

5.1.1 External Power Cables of the BTS3812AE...........................................................................................5-25.1.2 PGND Cables of the BTS3812AE.........................................................................................................5-3

5.2 Internal Power Cables of the BTS3812AE.....................................................................................................5-35.2.1 Power Cables of the Baseband Subrack/MTRUs of the BTS3812AE...................................................5-45.2.2 Power Cables of the Fans of the BTS3812AE.......................................................................................5-65.2.3 Power Cables of the MAFUs of the BTS3812AE..................................................................................5-75.2.4 Power Cables of the LAMP of the BTS3812AE....................................................................................5-95.2.5 Power Cables of the Heat Exchanger of the BTS3812AE...................................................................5-105.2.6 Reserved DC Power Cables of the BTS3812AE.................................................................................5-10

5.3 Transmission Cables of the BTS3812E/BTS3812AE...................................................................................5-115.3.1 E1/T1 Cable of the BTS3812AE..........................................................................................................5-125.3.2 Optical Cable of the BTS3812AE........................................................................................................5-145.3.3 Ethernet Cable of the BTS3812AE......................................................................................................5-155.3.4 E1 Signal Transfer Cable of the BTS3812AE.....................................................................................5-16

5.4 Signal Cables of the BTS3812AE.................................................................................................................5-225.4.1 BBUS Signal Cable of the BTS3812AE..............................................................................................5-235.4.2 GPS Clock Signal Cable of the BTS3812AE.......................................................................................5-295.4.3 Boolean Transfer Cable of the BTS3812AE........................................................................................5-305.4.4 Boolean Output Cable of the BTS3812AE..........................................................................................5-335.4.5 Boolean Input Cable of the BTS3812AE.............................................................................................5-355.4.6 RET Control Signal Cable of the BTS3812AE....................................................................................5-37

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5.4.7 Serial Cable of the BTS3812AE..........................................................................................................5-385.4.8 PMU Monitoring Cable of the BTS3812AE........................................................................................5-395.4.9 Signal Cable of Monitoring the MCB for the BTS3812AE Batteries..................................................5-415.4.10 AC Surge Protector Alarm Cable of the BTS3812AE.......................................................................5-425.4.11 Humidity and Temperature Sensor Cable of the BTS3812AE..........................................................5-435.4.12 Door Control Sensor Cable of the BTS3812AE................................................................................5-445.4.13 Smoke Sensor Cable of the BTS3812AE...........................................................................................5-455.4.14 Water Sensor Cable of the BTS3812AE............................................................................................5-45

5.5 RF Cables of the BTS3812AE......................................................................................................................5-465.5.1 MTRU-MAFU RF Cable of the BTS3812AE.....................................................................................5-465.5.2 RF Jumper of the BTS3812AE............................................................................................................5-49

5.6 Built-in Battery Cables of the BTS3812AE..................................................................................................5-49

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Figures

Figure 1-1 Components of the BTS3812AE system............................................................................................1-1Figure 2-1 BTS3812AE cabinet...........................................................................................................................2-2Figure 2-2 Structure of the BTS3812AE cabinet.................................................................................................2-3Figure 2-3 Structure of the BTS3812AE cabinet.................................................................................................2-4Figure 2-4 Top view of the bottom plate of the BTS3812AE cabinet.................................................................2-6Figure 2-5 Waterproof unit...................................................................................................................................2-7Figure 2-6 Cable connections in the front of the BTS3812AE cabinet................................................................2-9Figure 2-7 Rear cable connections of the BTS3812AE cabinet.........................................................................2-11Figure 3-1 Internal structure of the 75-ohm outdoor transmission interface box.................................................3-2Figure 3-2 Internal structure of the 120-ohm outdoor transmission interface box...............................................3-3Figure 3-3 Structure of the 12-fiber splice assembly...........................................................................................3-3Figure 3-4 Internal structure of the 220 V power interface box...........................................................................3-4Figure 4-1 Mapping between the BESP and the NUTI/NDTI in BTS3812AE...................................................4-6Figure 4-2 Top view of the two BESPs installed in the BTS3812AE.................................................................4-8Figure 4-3 Ports on the DCSP board..................................................................................................................4-10Figure 4-4 Working environment of the HBBI - 1.............................................................................................4-12Figure 4-5 Working environment of the HBBI - 2.............................................................................................4-12Figure 4-6 Working principles of the HBBI board............................................................................................4-13Figure 4-7 HBBI panel.......................................................................................................................................4-14Figure 4-8 Working environment of the HBOI - 1............................................................................................4-17Figure 4-9 Working environment of the HBOI - 2............................................................................................4-17Figure 4-10 HBOI panel.....................................................................................................................................4-18Figure 4-11 Working environment of the HDLP...............................................................................................4-20Figure 4-12 Working principles of the HDLP....................................................................................................4-21Figure 4-13 HDLP panel....................................................................................................................................4-22Figure 4-14 Working environment of the HULP...............................................................................................4-24Figure 4-15 Working principles of the HULP....................................................................................................4-25Figure 4-16 HULP panel....................................................................................................................................4-26Figure 4-17 Working environment of the MAFU..............................................................................................4-28Figure 4-18 Working principles of the MAFU..................................................................................................4-29Figure 4-19 MAFU panel...................................................................................................................................4-30Figure 4-20 Working environment of the MTRU..............................................................................................4-33Figure 4-21 Working principles of the MTRU..................................................................................................4-33

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Figure 4-22 MTRU panel...................................................................................................................................4-35Figure 4-23 NCCU panel...................................................................................................................................4-38Figure 4-24 Working environment of the NDTI................................................................................................4-40Figure 4-25 Working principles of the NDTI....................................................................................................4-41Figure 4-26 NDTI panel.....................................................................................................................................4-42Figure 4-27 DIP switches on the NDTI..............................................................................................................4-43Figure 4-28 NFAN panel....................................................................................................................................4-46Figure 4-29 Working environment of the NMON.............................................................................................4-48Figure 4-30 Working principles of the NMON..................................................................................................4-48Figure 4-31 NMON panel..................................................................................................................................4-49Figure 4-32 Working environment of the NMPT..............................................................................................4-51Figure 4-33 Working principles of the NMPT...................................................................................................4-52Figure 4-34 NMPT panel...................................................................................................................................4-54Figure 4-35 Ports on the NPMI..........................................................................................................................4-56Figure 4-36 Working environment of the NUTI................................................................................................4-59Figure 4-37 Working Principles of the NUTI....................................................................................................4-59Figure 4-38 NUTI panel.....................................................................................................................................4-61Figure 4-39 DIP switch on the NUTI.................................................................................................................4-62Figure 4-40 Installation position of the PMU....................................................................................................4-64Figure 4-41 PMU panel......................................................................................................................................4-65Figure 4-42 DIP switch on the PMU module.....................................................................................................4-67Figure 4-43 Installation position of the PSUs....................................................................................................4-68Figure 4-44 PSU panel.......................................................................................................................................4-68Figure 5-1 Power cable of the baseband subrack/MTRU of the BTS3812AE.....................................................5-4Figure 5-2 Structure of the power cable of the BTS3812AE fan subrack............................................................5-7Figure 5-3 Structure of the power cable of the MAFUs.......................................................................................5-8Figure 5-4 Structure of the power cable of the lamp............................................................................................5-9Figure 5-5 Structure of the power cable of the heat exchanger..........................................................................5-10Figure 5-6 Structure of the reserved DC power cables......................................................................................5-11Figure 5-7 Structure of the 75-ohm E1 cable.....................................................................................................5-12Figure 5-8 Structure of the 120-ohm E1 cable ..................................................................................................5-13Figure 5-9 Structure of the LC connector...........................................................................................................5-15Figure 5-10 Structure of the Ethernet cable.......................................................................................................5-15Figure 5-11 Structure of the E1 signal transfer cable connecting the NCCU to the BESP................................5-17Figure 5-12 Structure of the E1 signal transfer cable connecting the E1 sub-board on the NUTI to the BESP.............................................................................................................................................................................5-17Figure 5-13 Structure of the BBUS signal cable................................................................................................5-23Figure 5-14 Connections of BBUS signal cables - 1..........................................................................................5-28Figure 5-15 Connections of BBUS signal cables - 2..........................................................................................5-28Figure 5-16 Connections of BBUS signal cables - 3..........................................................................................5-29Figure 5-17 Structure of the GPS clock signal cable.........................................................................................5-29Figure 5-18 Boolean transfer cable ...................................................................................................................5-30Figure 5-19 Structure of the Boolean output cable............................................................................................5-34

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Figure 5-20 Structure of the Boolean input cable of the BTS3812AE...............................................................5-35Figure 5-21 Structure of the RET control signal cable.......................................................................................5-37Figure 5-22 Structure of the serial cable............................................................................................................5-39Figure 5-23 Structure of the PMU monitoring cable.........................................................................................5-40Figure 5-24 Structure of the signal cable of monitoring the MCB.....................................................................5-42Figure 5-25 Structure of the AC surge protector alarm cable............................................................................5-42Figure 5-26 Structure of the humidity and temperature sensor cable................................................................5-43Figure 5-27 Structure of the door control sensor cable......................................................................................5-44Figure 5-28 Structure of the smoke sensor cable...............................................................................................5-45Figure 5-29 Structure of the water sensor cable.................................................................................................5-45Figure 5-30 MTRU-MAFU RF cable................................................................................................................5-46Figure 5-31 Wiring between RF ports on MTRUs and MAFUs in 2-way RX and 3 to 4 carriers....................5-47Figure 5-32 Wiring between RF ports on MTRUs and MAFUs in 2-way RX and 1 to 2 carriers....................5-48Figure 5-33 Wiring between RF ports on MTRUs and MAFUs in 4-way RX and 1 to 2 carriers....................5-48Figure 5-34 Structure of the RF jumper.............................................................................................................5-49Figure 5-35 Structure of the GND cable............................................................................................................5-50Figure 5-36 Structure of the -48 V power cable.................................................................................................5-50Figure 5-37 Structure of the built-in battery temperature sensor cable..............................................................5-50

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Tables

Table 2-1 Description of components of the BTS3812AE cabinet......................................................................2-5Table 2-2 Description of Front Cable Connections of the BTS3812AE............................................................2-10Table 2-3 Rear cable connections of the BTS3812AE cabinet..........................................................................2-12Table 2-4 Physical dimensions of the BTS3812AE...........................................................................................2-13Table 2-5 Weight of the cabinet.........................................................................................................................2-13Table 2-6 Parameters of the power supply.........................................................................................................2-14Table 2-7 Power consumption of the BTS3812AE............................................................................................2-14Table 2-8 Reliability specifications for the BTS3812AE (without baseband board backup)............................2-15Table 2-9 Reliability specifications for the BTS3812AE (with baseband board backup).................................2-15Table 4-1 List of the boards and modules in the BTS3812AE.............................................................................4-3Table 4-2 Boards supported by the BTS3812AE.................................................................................................4-5Table 4-3 Connectors on the BESPs.....................................................................................................................4-9Table 4-4 DIP switches on the BESP...................................................................................................................4-9Table 4-5 Ports on the DCSP..............................................................................................................................4-10Table 4-6 LEDs on the HBBI panel...................................................................................................................4-15Table 4-7 Ports on the HBBI panel....................................................................................................................4-15Table 4-8 LEDs on the HBOI panel...................................................................................................................4-18Table 4-9 Ports on the HBOI Panel....................................................................................................................4-19Table 4-10 LEDs on the HDLP panel................................................................................................................4-23Table 4-11 LEDs on the HULP panel................................................................................................................4-26Table 4-12 LEDs on the MAFU panel...............................................................................................................4-30Table 4-13 Ports on the MAFU panel................................................................................................................4-31Table 4-14 LEDs on the MTRU panel...............................................................................................................4-36Table 4-15 Ports on the MTRU..........................................................................................................................4-36Table 4-16 Ports on the NCCU...........................................................................................................................4-39Table 4-17 NDTI LEDs......................................................................................................................................4-42Table 4-18 DIP switch S11 on the NDTI...........................................................................................................4-44Table 4-19 DIP switch S11 on the NDTI...........................................................................................................4-44Table 4-20 DIP switches S3, S4, S5, and S6 on the NDTI................................................................................4-44Table 4-21 DIP switches S3, S4, S5, and S6 on the NDTI................................................................................4-45Table 4-22 NFAN LED......................................................................................................................................4-46Table 4-23 Ports on the NFAN panel.................................................................................................................4-47Table 4-24 NMON LEDs...................................................................................................................................4-50

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Table 4-25 NMON ports.....................................................................................................................................4-50Table 4-26 NMPT LEDs....................................................................................................................................4-54Table 4-27 NMPT ports......................................................................................................................................4-55Table 4-28 Ports on the HBBI panel..................................................................................................................4-56Table 4-29 Sub-boards supported on the NUTI.................................................................................................4-58Table 4-30 NUTI LEDs......................................................................................................................................4-61Table 4-31 NUTI ports.......................................................................................................................................4-62Table 4-32 Definitions of bits on DIP switch S11 on the NUTI (I)...................................................................4-63Table 4-33 Definitions of bits on DIP switch S11 on the NUTI (II)..................................................................4-63Table 4-34 PMU LEDs.......................................................................................................................................4-65Table 4-35 PMU ports........................................................................................................................................4-66Table 4-36 PSU LEDs........................................................................................................................................4-69Table 5-1 Installation positions of the BTS3812AE AC power cables................................................................5-3Table 5-2 Pin assignment of the power cable of BTS3812AE baseband subrack/MTRU...................................5-4Table 5-3 Pins short-circuited at X1 end..............................................................................................................5-5Table 5-4 Installation positions of the power cable of BTS3812AE baseband subrack/MTRU..........................5-5Table 5-5 Pin assignment of the power cable of the BTS3812AE fan subrack...................................................5-7Table 5-6 Pin definition of the power cables W1 to W6......................................................................................5-8Table 5-7 Pin definition of the location signal cable W7.....................................................................................5-8Table 5-8 Pin assignment of the power cable of the lamp....................................................................................5-9Table 5-9 Pin assignment of the power cable of the BTS3812AE heat exchanger............................................5-10Table 5-10 Pin assignment of the reserved DC power cable..............................................................................5-11Table 5-11 Pin assignment of the E1/T1 cable...................................................................................................5-13Table 5-12 Pin assignment of the Ethernet cable...............................................................................................5-16Table 5-13 Pin assignment of W1......................................................................................................................5-18Table 5-14 Pin assignment of W2......................................................................................................................5-19Table 5-15 Pin assignment of the E1 signal transfer cable connecting the E1 sub-board on the NUTI to the BESP.............................................................................................................................................................................5-20Table 5-16 Pin assignment of W1......................................................................................................................5-24Table 5-17 Pin assignment of W2......................................................................................................................5-24Table 5-18 Pin assignment of W3 .....................................................................................................................5-25Table 5-19 Installation positions of the BBUS signal cable...............................................................................5-25Table 5-20 The following part describes connection of the BBUS signal cable in different configurations:....5-26Table 5-21 Pin assignment of W1......................................................................................................................5-30Table 5-22 Pin assignment of W2......................................................................................................................5-31Table 5-23 Pin assignment of W3 .....................................................................................................................5-32Table 5-24 Pin assignment of the Boolean output cable....................................................................................5-34Table 5-25 Pin assignment of the BTS3812AE Boolean input cable.................................................................5-36Table 5-26 Installation positions of the BTS3812AE Boolean input cable.......................................................5-36Table 5-27 Pin assignment of the RET control signal cable..............................................................................5-37Table 5-28 Connection of the RET control signal cable....................................................................................5-38Table 5-29 Pin assignment of the serial cable....................................................................................................5-39Table 5-30 Pin assignment of the PMU monitoring cable.................................................................................5-40

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Table 5-31 Pin assignment of the humidity and temperature sensor cable........................................................5-43Table 5-32 Pin assignment of the door control sensor cable..............................................................................5-44

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About This Document

PurposeThis document provides reference for you to plan and deploy the BTS3812AE. You can obtaininformation about subracks of the BTS3812AE cabinet, categories of cables, specifications andinstallation positions of connectors, and configuration, functions and specifications of boardsand other parts.

VersionThe following table lists the product versions related to this document.

Product Name Version

BTS3812AE V100R008

Intended AudienceNodeB installers

Site maintainers

Update HistoryRefer to Changes in BTS3812AE Hardware Description.

Organization1 System Architecture of the BTS3812AE

The BTS3812AE system consists of a cabinet, the antenna system, an LMT, and so on.

2 BTS3812AE Cabinet

The BTS3812AE cabinet consists of the MAFU subrack, MTRU subrack, fan subrack, basebandsubrack, power subrack, transmission device subrack, AC power distribution subrack, DC powerdistribution subrack, battery cabin, and heat exchanger. In compliance with the IEC297 standard,the BTS3812AE cabinet features a modular structure and mainly processes baseband signals.

3 Interface Boxes

Interface boxes of the BTS3812AE consist of the transmission interface box and the powerinterface box.

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4 Boards and Modules of the BTS3812AE

Boards of the BTS3812AE consist of the BESP, DCSP, HBBI, HBOI, HDLP, HULP, NCCB,NCCU, NDTI, NMON, NMPT, NBCB, NPMI, and NUTI. Modules of the BTS3812AE consistof the MAFU, MTRU, NFAN, PMU, and PSU.

5 BTS3812AE Cables

The BTS3812AE cables consist of the external power cable, PGND cable, internal power cable,transmission cable, signal cable, RF cable, and built-in battery cable.

Conventions1. Symbol Conventions

The following symbols may be found in this document. They are defined as follows

Symbol Description

Indicates a hazard with a high level of risk that, if not avoided,will result in death or serious injury.

Indicates a hazard with a medium or low level of risk which, ifnot avoided, could result in minor or moderate injury.

Indicates a potentially hazardous situation that, if not avoided,could cause equipment damage, data loss, and performancedegradation, or unexpected results.

Indicates a tip that may help you solve a problem or save yourtime.

Provides additional information to emphasize or supplementimportant points of the main text.

2. General Conventions

Convention Description

Times New Roman Normal paragraphs are in Times New Roman.

Boldface Names of files,directories,folders,and users are in boldface. Forexample,log in as user root .

Italic Book titles are in italics.

Terminal display is in Courier New.

3. Command Conventions

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Boldface The keywords of a command line are in boldface.

Italic Command arguments are in italic.

[ ] Items (keywords or arguments) in square brackets [ ] are optional.

{x | y | ...} Alternative items are grouped in braces and separated by verticalbars.One is selected.

[ x | y | ... ] Optional alternative items are grouped in square brackets andseparated by vertical bars.One or none is selected.

{ x | y | ... } * Alternative items are grouped in braces and separated by verticalbars.A minimum of one or a maximum of all can be selected.

[ x | y | ... ] * Alternative items are grouped in braces and separated by verticalbars.A minimum of zero or a maximum of all can be selected.

4. GUI Conventions


Boldface Buttons,menus,parameters,tabs,window,and dialog titles are inboldface. For example,click OK.

> Multi-level menus are in boldface and separated by the ">" signs.For example,choose File > Create > Folder .

5. Keyboard Operation


Key Press the key.For example,press Enter and press Tab.

Key1+Key2 Press the keys concurrently.For example,pressing Ctrl+Alt+Ameans the three keys should be pressed concurrently.

Key1,Key2 Press the keys in turn.For example,pressing Alt,A means the twokeys should be pressed in turn.

6. Mouse Operation

Action Description

Click Select and release the primary mouse button without moving thepointer.

Double-click Press the primary mouse button twice continuously and quicklywithout moving the pointer.

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Action Description

Drag Press and hold the primary mouse button and move the pointerto a certain position.

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1 System Architecture of the BTS3812AE

The BTS3812AE system consists of a cabinet, the antenna system, an LMT, and so on.

Figure 1-1 shows the components of the BTS3812AE system.

Figure 1-1 Components of the BTS3812AE system

Component Description

BTS3812AE cabinet For details about the hardware structure of the BTS3812AE, referto 2 BTS3812AE Cabinet.For details about the logical structure of the BTS3812AE, refer toLogical Structure of the BTS3812AE.

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Antenna system The antenna system is of RET antenna system and non-RET antennasystem. The antenna system receives weak signals in the uplink andtransmits signals in the downlink.For details about the antenna system, refer to Antenna Subsystemof the NodeB.For details about how to install the antenna devices, refer to NodeBAntenna System Installation Guide (Non-RET) and NodeBAntenna System Installation Guide (RET)

GPS antenna system The GPS antenna provides GPS clock signals for the NodeB.For details about how to install the GPS antenna devices, refer toNodeB GPS Antenna System Installation Guide.

LMT The LMT computer is the computer that is installed with the LMTsoftware package and connected to the Operation and Maintenance(OM) network of the NEs. You may operate and maintain the NEthrough the LMT.For details, refer to NodeB LMT User Guide.

Battery cabinet The battery cabinet is optional. The user guide of the battery cabinetis delivered with the cabinet.

Environmentmonitoring device

The environment monitoring device is optional. The user guide ofthe environment monitoring device is delivered with the device.

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2 BTS3812AE Cabinet

About This Chapter

The BTS3812AE cabinet consists of the MAFU subrack, MTRU subrack, fan subrack, basebandsubrack, power subrack, transmission device subrack, AC power distribution subrack, DC powerdistribution subrack, battery cabin, and heat exchanger. In compliance with the IEC297 standard,the BTS3812AE cabinet features a modular structure and mainly processes baseband signals.

2.1 Appearance of the BTS3812AEThis part describes the appearance of the BTS3812AE cabinet.

2.2 Components of the BTS3812AEThis part describes the components of the BTS3812AE cabinet.

2.3 Cable Holes of the BTS3812AEAll the external cables are led into and out of the BTS3812AE cabinet through the cable holesat the bottom of the cabinet.

2.4 Waterproof Kit of the BTS3812AEThe waterproof kit is composed of waterproof units and is used for waterproof purpose of thecable holes for RF jumpers. The lute is used for waterproof purpose of the cable holes for externalcables such as the power cable and the transmission cable.

2.5 Front Cable Connections of the BTS3812AEThis part describes front cable connections of the BTS3812AE.

2.6 Rear Cable Connections of the BTS3812AEThis part describes cable connections on the rear of the BTS3812AE cabinet.

2.7 Engineering Specifications for the BTS3812AEThe engineering specifications for the BTS3812AE cover the physical dimensions, weight,power supply, power consumption, and reliability.

BTS3812AEHareware Description 2 BTS3812AE Cabinet





2.1 Appearance of the BTS3812AEThis part describes the appearance of the BTS3812AE cabinet.

Figure 2-1 shows the BTS3812AE cabinet.

Figure 2-1 BTS3812AE cabinet

2.2 Components of the BTS3812AEThis part describes the components of the BTS3812AE cabinet.

Figure 2-2 shows the structure of the BTS3812AE (200AH) in full configuration.

2 BTS3812AE CabinetBTS3812AE






Figure 2-2 Structure of the BTS3812AE cabinet

(1) MAFU subrack (2) MTRU subrack

(3) Fan box (4) Baseband subrack

(5) Power subrack (6) Subrack for GPS surge protectors and dry contact surgeprotector (DCSP)

(7) DC power distribution box (8) AC power distribution box

(9) Transmission surge protection subrack (10) Battery cabin 3

(11) Battery cabin 2 (12) Battery cabin 1

(13) Surge protection filter subrack

Figure 2-3 shows the structure of the BTS3812AE (150AH) in full configuration.






Figure 2-3 Structure of the BTS3812AE cabinet

(1) MAFU subrack (2) MTRU subrack

(3) Fan box (4) Baseband subrack

(5) Power subrack (6) Subrack for GPS surge protectors and dry contact surgeprotector (DCSP)

(7) DC power distribution box (8) AC power distribution box

(9) Transmission surge protection subrack (10) Transmission device subrack

(11) Battery cabin 2 (12) Battery cabin 1

(13) Surge protection filter subrack

Table 2-1 describes the components of the BTS3812AE cabinet in detail.







Table 2-1 Description of components of the BTS3812AE cabinet


MAFU subrack The MAFU subrack in full configuration holds up to six MAFUs.The MAFU mainly receives and transmits RF signals andperforms low noise amplification for UL signals.For more details about the functions of the MAFU, refer to RFSubsystem of the BTS3812AE.

MTRU subrack The MTRU subrack in full configuration holds up to six MTRUs.The MTRU mainly processes RF signals and amplifies DLsignals.For more details about the functions of the MTRU, refer to RFSubsystem of the BTS3812AE.

Fan box Each fan subrack has one fan box which holds four fans and onefan monitoring board. The fan monitoring board monitors thetemperature at the cable hole at the bottom of cabinet. Then theboard reports it to the NMPT or automatically adjusts the rotatingspeed of the fans according to the temperature.The fans dissipate heat from both the top and the bottom of thecabinet. The ventilation loop between air inlets at the bottom andthe rear half part of the cabinet top enables heat dissipation forthe entire cabinet.

Baseband subrack The NMPT, NMON, HULP, HDLP, NUTI/NDTI (Iub interfaceboard), HBBI, HBOI, and NCCU can be configured to thebaseband subrack.For details about the functions of those boards, refer to BasebandSubsystem of the BTS3812AE.

Power subrack The power subrack can hold 3 PSUs and 1 PMU. They supplypower to the entire NodeB and batteries.

Transmission devicesubrack

In the BTS3812AE cabinet, the maximum space of 19 inches(width) x 7U (height) is reserved for installing transmissiondevices.

Transmission surgeprotection subrack

It provides space for installing the DC surge protector of thetransmission device and the HDSL surge protector. Externalsignals are led into the this subrack from the front of the cabinetand then is transmitted to the corresponding ports on the boards.

DC power distributionsubrack

The DC power distribution subrack has one DC powerdistribution box and provides DC power for each module insidethe cabinet.

AC power distributionsubrack

The AC power distribution subrack has one AC powerdistribution box and provides AC power for each module insidethe cabinet.

Surge protection filtersubrack

The surge protector filter subrack has one AC surge protector andone EMI filter. It also provides space for installing externalpower cables.







Subrack for GPS surgeprotectors and dry contactsurge protector (DCSP)

It provides space for installing the GPS surge protector and theDCSP board.

Battery cabin The batteries enable the cabinet to work properly for a periodwhen the external AC power is unavailable.

Heat exchanger The heat exchanger is installed on the interior surface of the frontcabinet door. It is used to adjust the temperature inside thecabinet.

2.3 Cable Holes of the BTS3812AEAll the external cables are led into and out of the BTS3812AE cabinet through the cable holesat the bottom of the cabinet.

Figure 2-4 shows the top view the bottom plate of the BTS3812AE cabinet.

Figure 2-4 Top view of the bottom plate of the BTS3812AE cabinet

(1) Cable hole for the antenna feeder

(2) Cable hole for the GPS jumper

(3) Reserved openings for the IBBS cabinet door control cable, temperature sensor cable for external batteries,Boolean input cable, Boolean output cable, BITS clock cable, and monitoring signal cable of combined cabinets







(4) Reserved opening for the external power cable (L1, L2, L3, and N wires), cabinet PGND cable, andequipotential cable of the IBBS cabinet

(5) Openings for the E1 signal cable, optical cable, microwave IF cable, and HDSL transmission cable

(6) Openings for the GND cable and the –48 V cable of the IBBS cabinet

2.4 Waterproof Kit of the BTS3812AEThe waterproof kit is composed of waterproof units and is used for waterproof purpose of thecable holes for RF jumpers. The lute is used for waterproof purpose of the cable holes for externalcables such as the power cable and the transmission cable.

Waterproof unitThe waterproof unit is a white rubber module for cabling and waterproofing purpose. Figure2-5 shows a waterproof unit.

Figure 2-5 Waterproof unit

LuteThe lute is used for waterproof purpose.

2.5 Front Cable Connections of the BTS3812AEThis part describes front cable connections of the BTS3812AE.






Front Cable Connections of the BTS3812AE

RF cables between MTRUs and MAFUs are described in 2-way RX and 1 to 2 carriers.

Figure 2-6 shows the cable connections in the front of the cabinet.







Figure 2-6 Cable connections in the front of the BTS3812AE cabinet






Cables connected to the surge protector and batteries are not shown in Figure 2-6.

Description of Front Cable Connections of the BTS3812AETable 2-2 lists the cables connected to the front of the cabinet.

Table 2-2 Description of Front Cable Connections of the BTS3812AE

No. Cable Type Quantity

R1–R6 RF TX signal cable 6

R7–R18 RF RX signal cable 12

R19 GPS clock cable 1

S1, S3 BBUS signal cable 2

S2 RS485 signal cable 1

S4 E1 signal transfer cable 1

S5 RET control signalcable

1

S6 AC surge protectionalarm cable

1

S7 PMU monitoring cable 1

P1–P13 Power cable of the DCpower distribution box

13

2.6 Rear Cable Connections of the BTS3812AEThis part describes cable connections on the rear of the BTS3812AE cabinet.

Rear Cable Connections of the BTS3812AEFigure 2-7 shows the cable connections on the rear of the BTS3812AE.







Figure 2-7 Rear cable connections of the BTS3812AE cabinet






Description of Rear Cable Connections of the BTS3812AE

Table 2-3 lists the cables connected to the rear of the BTS3812AE cabinet.

Table 2-3 Rear cable connections of the BTS3812AE cabinet


1 PGND power cable 1

2–4 L wire from the filter to thewiring terminal at the back ofthe AC power distribution box

3

5–6 N wire from the filter to thewiring terminal at the back ofthe AC power distribution box

2

7, 9, 11 L wire from the wiring terminalat the back of the AC powerdistribution box to the PSU

3

8, 10, 12 N wire from the wiring terminalat the back of the AC powerdistribution box to the PSU

3

13 PE wire connected to the PSU 1

14 Output power cable connectedto PSU LOAD1

1

15 Output power cable connectedto PSU LOAD2

1

16 Power cable connected to PSURTN

1

17 Output power cable connectingPSU BAT to MCB

1

18 Cable connecting MCB to thenegative pole of the battery

1

19 Output power cable connectingPSU RTN to the RTN of thebattery

1





S5 Smoke sensor cable 1

2.7 Engineering Specifications for the BTS3812AEThe engineering specifications for the BTS3812AE cover the physical dimensions, weight,power supply, power consumption, and reliability.

Physical Dimensions

Table 2-4 Physical dimensions of the BTS3812AE

Item Width (mm) Depth (mm) Height (mm)

Heat exchanger(HX04)

1,000 880 1,700

The dimension does not include the size of the base. The height of the base is 200 mm.

Weight of the Cabinet

Table 2-5 Weight of the cabinet

Configuration Weight (kg)

Assembled cabinet 350

3 x 1 396 (without built-in batteries)

3 x 2 400 (without built-in batteries)

Full configuration 450 (without built-in batteries)

Full configuration 560 (with four 50 Ah batteries)

The assembled cabinet consists of the cabinet, cables, subracks, baseband backplane, surge protectionfilter subrack, AC power distribution box, and monitoring sensors.

Boards and modules such as HBBI and PMU are installed on site.






Power Supply

Table 2-6 Parameters of the power supply

Rated Voltage (V AC) Rated Frequency(Hz)

Type

196 to 240 ± 10% (phase voltage) 45 to 65 220 V AC single-phase powerinput

196 to 240 ± 10% (phase voltage) 45 to 65 220 V AC three-phase powerinput

196 to 240 ± 10% (line voltage) 45 to 65 110 V AC two live wires powerinput

Power ConsumptionTable 2-7 lists the maximum and typical power consumption of the BTS3812AE in no transmitdiversity mode when the heat exchanger and batteries do not work.

Table 2-7 Power consumption of the BTS3812AE

Configuration (No TXDiversity)

Typical PowerConsumption (W)

Maximum PowerConsumption (W)

1 x 1 570 740

3 x 1 950 1,200

3 x 2 1,100 1,340

3 x 3 1,700 2,050

3 x 4 2,000 2,450

6 x 1 1,500 1,800

6 x 2 2,000 2,450







Typical power consumption refers to the power consumed by the entire BTS3812AE when the outputpower is 20 W per carrier at the cabinet top and the load is 50%.

Maximum power consumption refers to the power consumed by the entire BTS3812AE when theoutput power is 20 W per carrier at the cabinet top and the load is 100%.

The values are based on the 50 W PA.

The power consumption of the BTS3812AE does not include the charge power of the built-in andexternal batteries, the power of the AC heat exchanger, or the power of transmission equipment.

The power of the AC heat exchanger is 1600 W.

The DC power required by the batteries is C x 56.4 x 0.1, where C is the capacity of the batteries.

If the ambient temperature is lower than –10 Celsius degree, the maximum power consumption ofthe BTS3812AE includes that of the AC heat exchanger or the batteries, if configured.

Heat consumption = total AC power consumption – power consumption of heat exchanger externalcycling fans – output power at the cabinet top

Reliability

Table 2-8 Reliability specifications for the BTS3812AE (without baseband board backup)

MTTR(Mean Time ToRepair)

MTBF(Mean Time BetweenFailure)

Availability Downtime

1 hour 5.59 x 104 hours 99.998% 9.41 minutes/year

Table 2-9 Reliability specifications for the BTS3812AE (with baseband board backup)

MTTR(Mean Time ToRepair)

MTBF(Mean Time BetweenFailure)

Availability Downtime

1 hour 1.15 x 105 hours 99.999% 4.59 minutes/year

Baseband board backup means that the NMPT works in 1+1 backup mode, the HULP works in N+1 loadsharing mode, the HDLP works in 1+1 resource pool mode, the HBBI works in 1+1 backup mode, and theNUTI works in load sharing mode.






3 Interface Boxes

About This Chapter

Interface boxes of the BTS3812AE consist of the transmission interface box and the powerinterface box.

3.1 Transmission Interface Box of the BTS3812AThe transmission interface box interfaces the transmission equipment prepared by the operatorwith the NodeB equipment supplied by Huawei. Huawei provides the following two types ofoutdoor transmission interface boxes: 75-ohm transmission interface box and 120-ohmtransmission interface box.

3.2 Power Interface Box of the BTS3812AThe power interface box interfaces the power supply device prepared by the operator with theNodeB equipment supplied by Huawei. Huawei provides the following two types of outdoorpower interface boxes: 220 V power interface box and 110 V power interface box.

BTS3812AEHareware Description 3 Interface Boxes





3.1 Transmission Interface Box of the BTS3812AThe transmission interface box interfaces the transmission equipment prepared by the operatorwith the NodeB equipment supplied by Huawei. Huawei provides the following two types ofoutdoor transmission interface boxes: 75-ohm transmission interface box and 120-ohmtransmission interface box.

Dimensions

Both the 75-ohm outdoor transmission interface box and the 120-ohm outdoor transmissioninterface box have the same dimensions of 420 mm x 378 mm x 125 mm (length x width xheight).

Weight

The weight of the transmission interface box is 4.92 kg by default before delivery.

Structure

The 75-ohm transmission interface box in full configuration consists of a case, a 75-ohm digitalunit, a grounding bar, and a 12-fiber splice assembly. Figure 3-1 shows the internal structure ofthe box.

Figure 3-1 Internal structure of the 75-ohm outdoor transmission interface box

(1) 12-fiber splice assembly (2) 75-ohm digital unit

(3) Grounding bar (4) Case

The 120-ohm transmission interface box in full configuration consists of a case, a 120-ohmdigital unit, a grounding bar, and a 12-fiber splice assembly. Figure 3-2 shows the internalstructure of the box.

3 Interface BoxesBTS3812AE






Figure 3-2 Internal structure of the 120-ohm outdoor transmission interface box

(1) 12-fiber splice assembly (2) 120-ohm digital unit

(3) Grounding bar (4) Case

The 12-fiber splice assembly consists of a 12-core fiber splice tray, an optical distribution frame,a fiber coiler, and a fiber stripping unit. Figure 3-3 shows these parts.

Figure 3-3 Structure of the 12-fiber splice assembly

(1) 12-core fiber splice tray (2) Optical distribution frame

(3) Fiber coiler (4) Fiber stripping unit

The internal parts of the transmission interface box are all assembled by default before delivery.






3.2 Power Interface Box of the BTS3812AThe power interface box interfaces the power supply device prepared by the operator with theNodeB equipment supplied by Huawei. Huawei provides the following two types of outdoorpower interface boxes: 220 V power interface box and 110 V power interface box.

DimensionsThe dimensions of the power interface box are 420 mm x 378 mm x 125 mm (length x width xheight).

WeightThe weight of the power interface box is 9.8 kg by default before delivery.

StructureThe power interface box in full configuration consists of a case, a Miniature Circuit Breaker(MCB) of the mains supply, generator components (optional, including the generator MCB andthe MCB interlocking kit), and I/O cable terminal bars. Figure 3-4 shows the internal structureof the power interface box in full configuration.

Figure 3-4 Internal structure of the 220 V power interface box

1) MCB of mains supply (2) MCB interlocking kit (3) MCB of generator

(4) Case (5) I/O cable terminal bars (6) Cable conduit

The MCB interlocking kit guarantees that only one of the MCBs stays in the closed status at any time.

3 Interface BoxesBTS3812AE






The 110 V power interface box and the 220 V power interface box have similar components.Their MCB specifications, however, vary.






4 Boards and Modules of the BTS3812AE

About This Chapter

Boards of the BTS3812AE consist of the BESP, DCSP, HBBI, HBOI, HDLP, HULP, NCCB,NCCU, NDTI, NMON, NMPT, NBCB, NPMI, and NUTI. Modules of the BTS3812AE consistof the MAFU, MTRU, NFAN, PMU, and PSU.

4.1 List of BTS3812AE Boards and ModulesBoards of the BTS3812AE consist of the BESP, DCSP, HBBI, HBOI, HDLP, HULP, NCCB,NCCU, NDTI, NMON, NMPT, NPMI, and NUTI. Modules of the BTS3812AE consist of theMAFU, MTRU, NFAN, PMU, and PSU.

4.2 BESP BoardThe BTS E1 Surge Protector (BESP) of the BTS3812AE is installed in the transmission surgeprotection subrack of the BTS3812AE.

4.3 DCSP BoardThe DCSP is a dry contact surge protection board installed on the external alarm mechanicalpart under the power subrack.

4.4 HBBI BoardThe NodeB HSDPA Supported Baseband Processing and Interface Units (HBBIs) can beinserted in slots 0 and 1 in the baseband subrack.

4.5 HBOI BoardThe NodeB HSDPA Supported Baseband Processing and Optical Interface Units (HBOIs) canbe inserted in slots 0 and 1 in the baseband subrack.

4.6 HDLP BoardThe HDLP processes HSDPA DL services. The HDLPs can be inserted in slots 8 and 9 in thebaseband subrack.

4.7 HULP BoardThe HULP processes HSDPA UL services. The HULPs can be inserted in slots 2–7 in thebaseband subrack.

4.8 MAFU ModuleThe MAFU module is the multicarrier antenna filter unit. The MAFU modules can be configuredin the six slots in the MAFU subrack.

BTS3812AEHareware Description 4 Boards and Modules of the BTS3812AE





4.9 MTRU ModuleThe MTRU module is the NodeB multicarrier TRansceiver unit. The MTRU modules can beconfigured in the six slots in the MTRU subrack.

4.10 NBCB BoardThe NodeB Baseband Chassis Backplane (NBCB) is configured in the baseband subrack.

4.11 NCCU BoardThe NodeB Cable Connected Unit (NCCU) is installed in slot 17 of the baseband subrack.

4.12 NDTI BoardThe NodeB Digital Trunk Interface Units (NDTIs) can be configured in slots 12 and 13 in thebaseband subrack.

4.13 NFAN ModuleThe NodeB FAN Box (NFAN) is installed in the fan subrack.

4.14 NMON BoardThe NodeB Monitoring Unit (NMON) is configured in slot 16 in the baseband subrack.

4.15 NMPT BoardThe NodeB Main Processing and Timing Units (NMPTs) are configured in slot 10 and slot 11in the baseband subrack.

4.16 NPMI BoardThe NodeB Power Monitor unit Interface Board (NPMI) is installed in the upper part on the leftof the BTS3812AE cabinet.

4.17 NUTI BoardThe NodeB Universal Transport Interface Units (NUTIs) can be configured in slots 12–15 inthe baseband subrack.

4.18 PMU ModuleThe Power and Environment Monitoring Unit (PMU) is installed in the power subrack of thecabinet.

4.19 PSU ModuleThe Power Supply Unit (PSU) is installed in the power subrack of the cabinet.

4 Boards and Modules of the BTS3812AEBTS3812AE






4.1 List of BTS3812AE Boards and ModulesBoards of the BTS3812AE consist of the BESP, DCSP, HBBI, HBOI, HDLP, HULP, NCCB,NCCU, NDTI, NMON, NMPT, NPMI, and NUTI. Modules of the BTS3812AE consist of theMAFU, MTRU, NFAN, PMU, and PSU.

List of BTS3812AE Boards and Modules

Table 4-1 lists the boards and modules installed in the BTS3812AE cabinet.

Table 4-1 List of the boards and modules in the BTS3812AE

Subrack AbbreviationsofBoardsandModules

Full Names of Boards andModules

Quantity

MAFUsubrack

MAFU Multi-carrier Antenna Filter Unit When no RRU is connectedto the cabinet, 1 to 6 MAFUscan be configured.When RRUs are connectedto the cabinet, the MAFUmay not be configured.The quantity of the MAFUsis the same with the quantityof the MTRUs.

MTRUsubrack

MTRU Multi-carrier TRansceiver Unit

Fan box NFAN NodeB FAN box 1

Basebandsubrack

HBBI HSDPA supported Basebandprocessing and Interface unit




Subrack AbbreviationsofBoardsandModules

Full Names of Boards andModules

Quantity

NUTI subrack should be at leastone and at most four.Where,The maximum number ofNUTIs is four.The maximum number ofNDTIs is two.

NodeB Universal TransportInterface unit

NMON NodeB MONitor unit




Table 4-2 Boards supported by the BTS3812AE

Board Type Supported or Not Supported

HBBI QWD1HBBI Supported

HBOI QWD1HBOI Supported

HULP QWD1HULP Supported

HDLP QW96HDLP Supported

NDTI QWD1NDTI4 All the functions, except the CES, aresupported.

NUTI QWD1NUTI Supported

NMPT QW93NMPT Not supported

QWD1NMPT4 (with GPS) Supported

QWD1NMPT5 (withoutGPS)

Supported

QWD1NMPT6 (withTrimble GPS)

Supported

QWD1NMPT9 (withTrimble GPS)

Supported

QWD1NMPT10 (withoutGPS)

Supported

NMON QW93NMON Not supported

QWD1NMON Supported

Do not insert in the slot the board of the type that the BTS3812AE does not support.

You can identify a board by referring to the board name marked on the label of the board panel.

4.2 BESP BoardThe BTS E1 Surge Protector (BESP) of the BTS3812AE is installed in the transmission surgeprotection subrack of the BTS3812AE.

4.2.1 Functions of the BESP BoardThe BTS E1 Surge Protector (BESP) connects the external E1 cable, provides surge protectionto the cable, and sets grounding status of the RX and TX ends of the cable.

4.2.2 Ports on the BESP Board






The BESP has three connectors labeled J1, J2, and J3 respectively. The connectors labeled J1and J2 are used to connect external E1/T1 cables. The connector labeled J3 is used to connectthe E1 transfer cable led from the E1 sub-board on the NCCU/NUTI.

4.2.3 DIP Switches on the BESP BoardEach BESP has four DIP switches numbered S1, S2, S3, and S4 to set grounding status of theRX and TX ends of an E1 cable.

4.2.1 Functions of the BESP BoardThe BTS E1 Surge Protector (BESP) connects the external E1 cable, provides surge protectionto the cable, and sets grounding status of the RX and TX ends of the cable.

Only one BESP is configured before delivery. One BESP protects signals over eight E1s from lightningsurge. In full configuration, four BESPs are configured in the BTS3812AE. The four BESPs protect signalsover 32 E1s from lightning surge.

One BESP corresponds to one NUTI or one NDTI in the BTS3812AE, as shown in Figure4-1.

Figure 4-1 Mapping between the BESP and the NUTI/NDTI in BTS3812AE







Both the NUTI and the NDTI can be installed in slots 12 and 13. Figure 4-1 assumes that the NUTIsare installed.

In Figure 4-1, the red cables correspond to the NUTIs in slots 12 and 13. In real installation, thecables are connected to the E1/T1 ports on the NCCU.

Only the NUTIs with the cabling from the front can be installed in slots 14 and 15.

In Figure 4-1, the blue cables correspond to the E1 sub-boards on the NUTIs in slots 14 and 15. Inreal installation, the cables are connected to the E1 sub-boards on the NUTIs.

In the BTS3812AE, the mapping between the BESP and the external E1 cable is determined bythe relation between the BESP and the NUTI/NDTI.

The external E1 cable corresponding to slot 12 shall be connected to connectors J2 and J1on the BESP which corresponds to slot 12.The external E1 cable corresponding to slot 13 shall be connected to connectors J2 and J1on the BESP which corresponds to slot 13.The external E1 cable corresponding to slot 14 shall be connected to connectors J2 and J1on the BESP which corresponds to slot 14.The external E1 cable corresponding to slot 15 shall be connected to connectors J2 and J1on the BESP which corresponds to slot 15.

4.2.2 Ports on the BESP BoardThe BESP has three connectors labeled J1, J2, and J3 respectively. The connectors labeled J1and J2 are used to connect external E1/T1 cables. The connector labeled J3 is used to connectthe E1 transfer cable led from the E1 sub-board on the NCCU/NUTI.

Figure 4-2 shows two BESPs installed in the BTS3812AE cabinet.






Figure 4-2 Top view of the two BESPs installed in the BTS3812AE

Table 4-3 describes the connectors on the BESP.







Table 4-3 Connectors on the BESPs

Connector Connector Type Functions

J1/J2 DB25, female They are used to connect externalE1/T1 cables to the NUTI orNDTI.

The connector labeled J2connects to the external E1/T1cables that are fixed to the portsnumbered 0–3 on the NUTI orNDTI.The connector labeled J1connects the external E1/T1cables that are fixed to the portsnumbered 4–7 on the NUTI orNDTI.

J3 DB37, male It is used to connect the E1 transfercable led from the E1 sub-board onthe NCCU/NUTI.

4.2.3 DIP Switches on the BESP BoardEach BESP has four DIP switches numbered S1, S2, S3, and S4 to set grounding status of theRX and TX ends of an E1 cable.

Bits 1 to 4 of each DIP switch define the grounding status of a transmission cable in the sequenceof TX, RX, TX, RX. Note that ON indicates that the wire is grounded and that OFF indicatesthat the wire is not grounded. Table 4-4 describes the settings in detail.

Table 4-4 DIP switches on the BESP

S1 S2 S3 S4 Description

ON ON ON ON Coaxial cable with the outerlayer of its TX and RX endsgrounded (default state).

ON OFF ON OFF Coaxial cable with the outerlayer of its TX ends groundedand that of its RX ends notgrounded.

OFF OFF OFF OFF Twisted pair

- - - - Not defined.






When the coaxial cable is used, the outer layer of the TX end is usually grounded. For example,

When device A connects to device B, the outer layer of the TX ends on both devices must be grounded.

If the outer layer is not enabled on device B, the outer layer of both RX and TX ends on device Amust be grounded.

4.3 DCSP BoardThe DCSP is a dry contact surge protection board installed on the external alarm mechanicalpart under the power subrack.

4.3.1 Ports on the DCSP Board

4.3.1 Ports on the DCSP Board

Figure 4-3 shows the ports on the DCSP board.

Figure 4-3 Ports on the DCSP board

Table 4-5 describes the ports on the DCSP board.

Table 4-5 Ports on the DCSP

Connector Connector Type Function

J1 DB25, female Port for Boolean input cable

J2 DB25, female Port for Boolean input cable

J3 DB37, male Port for Boolean signaltransfer cable







4.4 HBBI BoardThe NodeB HSDPA Supported Baseband Processing and Interface Units (HBBIs) can beinserted in slots 0 and 1 in the baseband subrack.

4.4.1 Functions of the HBBI BoardThe HBBI interfaces the RF subrack with the baseband subrack. The HBBI processes the ULbaseband signals and the DL baseband signals.

4.4.2 Working Environment of the HBBI BoardThe HBBI receives DL data sent from the NDTI/NUTI and HDLP and transmits it to the MTRUafter processing. The HBBI also receives UL data sent from the MTRU and transmits it to theNDTI/NUTI and HULP after processing.

4.4.3 Working Principles of the HBBI BoardThe HBBI consists of the control module, interface module, UL baseband resource processingmodule, and DL baseband resource processing module.

4.4.4 LEDs and Ports on the HBBI BoardThe three LEDs on the HBBI are used to display the working state. The two ports are used tolink six MTRUs.

4.4.1 Functions of the HBBI BoardThe HBBI interfaces the RF subrack with the baseband subrack. The HBBI processes the ULbaseband signals and the DL baseband signals.

The HBBI has the following functions:

The HBBI interfaces the RF subrack with the baseband subrack.

The HBBI processes the UL baseband signals and the DL baseband signals. One HBBI canprocess 128 CEs in UL and 256 CDs in DL.

UL resources of the HBBI and the HULP form a UL resource pool. DL resources of theHBBI and the HDLP form a DL resource pool. Each HBBI supports the processingcapability of three cells both in the UL and in the DL.

The HBBI supports the HSDPA technology and the data flow with the maximum rate at14.4 Mbit/s in each cell.

HBBIs can be inserted into slots 0 and 1 in the baseband subrack. One HBBI connects to up tosix MTRUs.

When two HBBIs are configured:

In a single cabinet, the two HBBIs support mutual backup.

In combined cabinets, the two HBBIs work independently.

The minimum HBBI configuration is as follows:

If MTRUs are configured in this cabinet, the minimum quantity of the HBBI is one.

If no MTRUs are configured in this cabinet and only RRUs are connected to this cabinet,the minimum quantity of the HBBI is zero.






The HBBI is a board upgraded from the NBBI. The HBBI supports the HSDPA. The HBBI and the NBBIcan be installed in the same subrack.

4.4.2 Working Environment of the HBBI BoardThe HBBI receives DL data sent from the NDTI/NUTI and HDLP and transmits it to the MTRUafter processing. The HBBI also receives UL data sent from the MTRU and transmits it to theNDTI/NUTI and HULP after processing.

Working environment of the HBBI can be categorized into the following two situations:

Only the HBBI is configured to the baseband signal processing unit.

Figure 4-4 shows the working environment of the HBBI in this situation.

Figure 4-4 Working environment of the HBBI - 1

DL data flow: The NDTI/NUTI receives data sent from the RNC and transmits it to theHBBI. The HBBI sends the DL data to the MTRU after the DL data is processed withencoding, digital demodulation and spreading, power weighting, and combining with allthe channels on the cells.

UL data flow: The HBBI receives UL RF digital signals from the MTRU and transmits theUL data to the NDTI/NUTI after processing. Then, the NDTI/NUTI sends the data to theRNC.

The HBBI receives clock signals and control signals from the NMPT and reports its state to theNMPT.

The HBBI, HDLP, and HULP are configured to the baseband subrack.

Figure 4-5 shows the working environment of the HBBI in this situation.

Figure 4-5 Working environment of the HBBI - 2







DL data flow: The NDTI/NUTI receives data sent from the RNC and sends it to the HBBIand HDLP. The HBBI sends the DL data to the MTRU after the DL data is processed bythe HBBI and HDLP with encoding, digital demodulation and spreading, power weighting,and combining with all the channels on the cells.

UL data flow: The HBBI receives UL RF digital signals from the MTRU and transfers partof the signals to the HULP. The UL data is sent to the NDTI/NUTI after it is processed bythe HBBI and HULP. Then the NDTI/NUTI sends it to the RNC.

The HBBI receives clock signals and control signals from the NMPT and reports its state to theNMPT.

4.4.3 Working Principles of the HBBI BoardThe HBBI consists of the control module, interface module, UL baseband resource processingmodule, and DL baseband resource processing module.

Figure 4-6 shows the working principles of the HBBI.

Figure 4-6 Working principles of the HBBI board

Control ModuleReceiving configuration information and OM commands from the NMPT

Reporting the working state of the board

Interface ModuleTransferring baseband signals and RF signals between the HBBI and the MTRU

Providing interface with the HDLP

Providing interface with the HULP

UL Baseband Resource Processing Module

Processing UL baseband signals of 128 CEs, which includes demodulation of common anddedicated channels, channel estimation, rake combining, softer combining, signal-to-interference ratio measurement, and decoding of power control






DL Baseband Resource Processing ModuleProcessing DL baseband signals of 256 CEs, which includes the decoding, demodulation, andpower control

4.4.4 LEDs and Ports on the HBBI BoardThe three LEDs on the HBBI are used to display the working state. The two ports are used tolink six MTRUs.

PanelFigure 4-7 shows the panel of the HBBI. The LEDs and ports are located on the panel. The labelon the panel indicates the board name and the bar code. Thus, the label uniquely identifies theboard.

Figure 4-7 HBBI panel

LEDTable 4-6 describes the meaning of the LEDs on the HBBI panel.







Table 4-6 LEDs on the HBBI panel

LED Color State Description

RUN Green ON steady Power input is available but the board isfaulty.

OFF steady Power input is unavailable or the board isfaulty.

1 s on and 1 s off The board is operational under currentconfiguration.

0.25 s on and0.25 s off

Software is being loaded or the board is notconfigured.

ALM Red ON steady orflashing at ahigh frequency

The board is in alarm state.

OFF steady No alarm is reported.

ACT Green ON steady The board is working.

OFF steady The board software is not started.

ConnectorTable 4-7 lists the two ports on the HBBI panel and their functions.

Table 4-7 Ports on the HBBI panel

Connector Functions

CPRIA/CPRIB Each of CPRIA and CPRIB provides threeCPRI channels, and each channel connects toone MTRU.The two ports are linked to the BBIF0 orBBIF1 ports on the six MTRU panels throughcables.

When the ports are not in use, block them with plastic pieces to keep them dust-free.

4.5 HBOI BoardThe NodeB HSDPA Supported Baseband Processing and Optical Interface Units (HBOIs) canbe inserted in slots 0 and 1 in the baseband subrack.

4.5.1 Functions of the HBOI Board






he HBOI interfaces the RRU with the baseband subrack of the BTS3812A/BTS3812E. TheHBOI processes the UL baseband signals and the DL baseband signals.

4.5.2 Working Environment of the HBOI BoardThe HBOI receives DL data sent from the NUTI/NDTI or the HDLP and transmits it to the RRUafter processing. The HBOI receives UL data sent from the RRU and transmits it to the NUTI/NDTI or the HULP after processing.

4.5.3 Working Principles of the HBOI BoardOperating principles of the HBOI are similar to those of the HBBI except that an optical interfaceconversion sub-board is added

4.5.4 LEDs and Ports on the HBOI BoardThe three LEDs on the HBOI are used to display the working state. The three ports are used tolink RRUs.

4.5.1 Functions of the HBOI Boardhe HBOI interfaces the RRU with the baseband subrack of the BTS3812A/BTS3812E. TheHBOI processes the UL baseband signals and the DL baseband signals.

The HBOI has the following functions:

The HBOI interfaces the RRU with the baseband subrack of the BTS3812E/BTS3812AEach HBOI can process 128 CEs in the UL and 256 CEs in the DL

Three optical ports can be configured on each HBOI. They support remote RRU connectionover 0.55 km (multi-mode), 10 km, and 40 km. They also support transmission rate at 1.25Gbit/s defined in the CPRI protocols.

For the optical ports with transmission rate at 1.25 Gbit/s, each port supports 5 remote cellsin 2-way RX diversity.

The UL resources of HBOIs and the HULPs form the UL resource pool. The DL resourcesof HBOIs and the HDLPs form the DL resource pool. Each HBOI supports processingcapability of three cells in both the UL and the DL.

The HBBI supports the HSDPA technology and the data flow with the maximum rate at14.4 Mbit/s in each cell.

The minimum HBOI configuration is as follows:

If RRUs are connected to the NodeB, at least one HBOI is installed.

If no RRU is connected to NodeB, the minimum quantity of HBOI can be zero.

4.5.2 Working Environment of the HBOI BoardThe HBOI receives DL data sent from the NUTI/NDTI or the HDLP and transmits it to the RRUafter processing. The HBOI receives UL data sent from the RRU and transmits it to the NUTI/NDTI or the HULP after processing.

Working environment of the HBOI can be categorized into the following two situations:

Only the HBOI is configured to the baseband signal processing unit.

Figure 4-8 shows the working environment of the HBOI in this situation.







Figure 4-8 Working environment of the HBOI - 1

DL data flow: The NDTI/NUTI receives data sent from the RNC and transmits it to theHBOI. The HBOI sends the DL data to the RRU after the DL data is processed withencoding, digital demodulation and spreading, power weighting, and combining with allthe channels on the cells.UL data flow: The HBOI receives UL RF digital signals from the RRU and transmits theUL data to the NDTI/NUTI after processing. Then, the NDTI/NUTI sends the data to theRNC.

The HBOI receives clock signals and control signals from the NMPT and reports its state to theNMPT.

The HBOI, HDLP, and HULP are configured to the baseband subrack.Figure 4-9 shows the working environment of the HBOI in this situation.

Figure 4-9 Working environment of the HBOI - 2

DL data flow: The NDTI/NUTI receives data sent from the RNC and sends it to the HBOIand HDLP. The HBOI sends the DL data to the RRU after the DL data is processed by theHBOI and HDLP with encoding, digital demodulation and spreading, power weighting,and combining with all the channels on the cells.UL data flow: The HBOI receives UL RF digital signals sent from the RRU and transferspart of the signals to the HULP. The UL data is sent to the NDTI/NUTI after the signalsare processed by the HBOI and HULP. Then, the NDTI/NUTI sends the data to the RNC.

The HBOI receives clock signals and control signals from the NMPT and reports its state to theNMPT.

4.5.3 Working Principles of the HBOI BoardOperating principles of the HBOI are similar to those of the HBBI except that an optical interfaceconversion sub-board is added

For details about the working principles of the HBOI, refer to 4.4.3 Working Principles of theHBBI Board.






4.5.4 LEDs and Ports on the HBOI BoardThe three LEDs on the HBOI are used to display the working state. The three ports are used tolink RRUs.

Panel

Figure 4-10 shows the panel of the HBOI. The LEDs and ports are located on the panel. Thelabel on the panel indicates the board name and the bar code. Thus, the label uniquely identifiesthe board.

Figure 4-10 HBOI panel

LED

Table 4-8 describes the meaning of the LEDs on the HBOI panel.

Table 4-8 LEDs on the HBOI panel


RUN Green ON steady Power input is available but theboard is faulty.








OFF steady Power input is unavailable or theboard is faulty.

1 s on and 1 s off The board is operational undercurrent configuration.

0.25 s on and 0.25 s off Software is being loaded or theboard is not configured.

ALM Red ON steady or flashingat a high frequency





ConnectorTable 4-9 lists the three optical ports on the HBOI panel and their functions.

Table 4-9 Ports on the HBOI Panel

Connector Functions

OPT0/OPT1/OPT2 Optical ports 0 , 1, and 2 are used to connectoptical cables and transmit RRU signals.

When the ports are not in use, block them with plastic pieces to keep them dust-free.

4.6 HDLP BoardThe HDLP processes HSDPA DL services. The HDLPs can be inserted in slots 8 and 9 in thebaseband subrack.

4.6.1 Functions of the HDLP BoardThe HDLP is used for DL encoding and modulation. Each HDLP can process 512 equivalentchannels in the DL.

4.6.2 Working Environment of the HDLP BoardThe HDLP receives DL data sent from the NDTI/NUTI and then transmits it to the HBBI afterprocessing.

4.6.3 Working Principles of the HDLP BoardThe HDLP consists of the control module, encoding and modulating module, interface module,and clock module.






4.6.4 LEDs and Ports on the HDLP BoardThe three LEDs on the HDLP are used to display the working state. There are no ports on theHDLP.

4.6.1 Functions of the HDLP BoardThe HDLP is used for DL encoding and modulation. Each HDLP can process 512 equivalentchannels in the DL.

The HDLP has the following functions:Encoding and modulating DL signals. One HDLP can process 512 CEs in the DL andsupport processing capability of 6 cells in the DL.Encoding and modulating the user plane data (AAL2 cell) from the NUTI/NDTI.

Receiving the control plane data (AAL5 cell) from the NMPT for signaling process suchas measurement.Receiving power control signals from the HULP for TX diversity control and DL powercontrol.Processing HSDPA DL services.

4.6.2 Working Environment of the HDLP BoardThe HDLP receives DL data sent from the NDTI/NUTI and then transmits it to the HBBI afterprocessing.

Figure 4-11 shows the working environment of the HDLP.

Figure 4-11 Working environment of the HDLP

The NDTI/NUTI receives data sent from the RNC and transmits it to HDLP. Then theHDLP sends the DL data to the HBBI after encoding, digital modulation and spreading,power weighting, and combining over channels in the cell.The HDLP receives quick power control data and AI data sent from the HULP.

The HDLP receives clock signals and control signals from the NMPT and reports its stateto the NMPT.

4.6.3 Working Principles of the HDLP BoardThe HDLP consists of the control module, encoding and modulating module, interface module,and clock module.

Figure 4-12 shows the working principles of the HDLP.







Figure 4-12 Working principles of the HDLP




Table 4-10 describes the meaning of the LEDs on the HDLP panel.

Table 4-10 LEDs on the HDLP panel


RUN Green ON steady Power input isavailable but theboard is faulty.

OFF steady Power input isunavailable or theboard is faulty.

1 s on and 1 s off The board isoperational undercurrentconfiguration.

0.25 s on and 0.25 soff

Software is beingloaded or the board isnot configured.

ALM Red ON steady orflashing at a highfrequency

The board is in alarmstate.


ACT Green ON steady The board isworking.

OFF steady The board software isnot started.

4.7 HULP BoardThe HULP processes HSDPA UL services. The HULPs can be inserted in slots 2–7 in thebaseband subrack.

4.7.1 Functions of the HULP BoardThe HULP performs UL access channel searching, modulation of dedicated channel, and ULdecoding. Each HULP can process 128 equivalent channels in the UL.

4.7.2 Working Environment of the HULP BoardThe HULP receives UL digital baseband signals sent from the HBBI and then transmits themto the NDTI/NUTI after processing. Then, the NDTI/NUTI sends the data to the RNC.

4.7.3 Working Principles of the HULP BoardThe HULP consists of the control module, demodulation/access module, decoding module,interface module, and clock module.

4.7.4 LEDs and Ports on the HULP BoardThe three LEDs on the HULP are used to display the working state. There are no ports on theHULP.






4.7.1 Functions of the HULP BoardThe HULP performs UL access channel searching, modulation of dedicated channel, and ULdecoding. Each HULP can process 128 equivalent channels in the UL.

The HULP has the following functions:

The HULP performs UL access channel searching, modulation of dedicated channel, andUL decoding. One HULP can process 128 CEs in the UL and support processing capabilityof 3 cells in the UL.On the data plane, the HULP processes UL baseband data in the NodeB, includingdemodulation of common transport channels and dedicated channel, channel estimation,rake receiving, softer combining, and decoding.On the control plane, the HULP completes the signaling process from the NMPT, transmitsdata such as feedback information, power control, and access information to the HDLP,processes AAL2 traffic data, and sends the data to the NUTI/NDTI.The HULP processes HSDPA services in the UL.

4.7.2 Working Environment of the HULP BoardThe HULP receives UL digital baseband signals sent from the HBBI and then transmits themto the NDTI/NUTI after processing. Then, the NDTI/NUTI sends the data to the RNC.

Figure 4-14 shows the working environment of the HULP.

Figure 4-14 Working environment of the HULP

Working environment of the HULP is as follows:The HULP receives UL digital baseband signals sent from the HBBI and then transmitsthem to the NDTI/NUTI after processing. Then, the NDTI/NUTI sends the data to the RNC.Quick power control data and AI data generated on the HULP are sent to the HDLP.

The HULP receives system clock signals from the NMPT and exchanges signalinginformation with it.

4.7.3 Working Principles of the HULP BoardThe HULP consists of the control module, demodulation/access module, decoding module,interface module, and clock module.

Figure 4-15 shows the working principles of the HULP.







Figure 4-15 Working principles of the HULP

Control Module

The Control module performs the following functions:Cell configuration

UL channel resource management

Uplink FP packets processing

AAL2 transmission

Board reset

Software loading

Status monitoring

Alarm collection and handling for all the modules

Demodulation/access moduleIt consists of two demodulation units for the dedicated channels and one demodulation unit forUL access channels. They demodulates signals for the 128 UL dedicated channels and 3 ULaccess channels.

Decoding ModuleIt performs decoding on all channels.

Interface Module

It performs format conversion and transferring of UL data and receiving or format conversionof power control data and AI data between the HDLP and the HULP.

Clock Module

It processes system clock signals from the NMPT and then sends them to other modules afterfrequency multiplying and phase adjustment.






4.7.4 LEDs and Ports on the HULP BoardThe three LEDs on the HULP are used to display the working state. There are no ports on theHULP.

Figure 4-16 shows the panel of the HULP. Only LEDs are available on the panel. The label onthe panel indicates the board name and the bar code. Thus, the label uniquely identifies the board.

Figure 4-16 HULP panel

Table 4-11 describes the meaning of the LEDs on the HULP panel.

Table 4-11 LEDs on the HULP panel


RUN Green ONsteady

Power input is available but the board is faulty.

OFFsteady

Power input is unavailable or the board is faulty.

Green 1 s on and1 s off

The board is operational under current configuration.








0.25 s onand 0.25 soff

Software is being loaded or the board is not configured.

ALM

Red ONsteady orflashing ata highfrequency


OFFsteady

No alarm is reported.

ACT Green ONsteady

The board is working.

OFFsteady

The board software is not started.

4.8 MAFU ModuleThe MAFU module is the multicarrier antenna filter unit. The MAFU modules can be configuredin the six slots in the MAFU subrack.

4.8.1 Functions of the MAFU ModuleThe MAFU provides two RX channels and one TX channel. It receives UL signals from theantenna and then sends the signals to the MTRU after filtering and amplification. It also receivesDL signals from the MTRU and then sends the signals to the antenna after filtering andamplification.

4.8.2 Working Environment of the MAFU ModuleThe MAFU receives UL signals from the antenna and sends them to the MTRU for furtherprocessing after the signals are processed with filtering and low noise amplification in theMAFU. The MAFU also receives DL signals from the MTRU and sends them to the antennafor transmission after the signals are filtered by the duplexer in the MAFU.

4.8.3 Working Principles of the MAFU ModuleThe MAFU module consists of the VSWR tester, ALD power tester, duplexer, LNA, BIAS TEE(BT), and receiving filter.

4.8.4 LEDs and Ports on the MAFU ModuleThe three LEDs on the MAFU are used to display the working state. The nine ports on the MAFUpanel are used for RET antenna, RX channels, TX channels, input of TX signals, and power/communication.

4.8.1 Functions of the MAFU ModuleThe MAFU provides two RX channels and one TX channel. It receives UL signals from theantenna and then sends the signals to the MTRU after filtering and amplification. It also receivesDL signals from the MTRU and then sends the signals to the antenna after filtering andamplification.

Functions of the MAFU are as follows:






Consisting of a duplex filter, a receiving filter, and two Low Noise Amplifiers (LNAs)

Providing two RX channels and one TX channel. Among the channels, the main diversityRX channel is divided into two output connectors.

Enabling TX signals and RX signals to share one antenna and feeder and ensuring thatstrong TX signals do not affect weak RX ones.

Filtering, amplifying, and monitoring RX signals

Providing 12 V DC power for the Tower-Mounted Amplifier (TMA) and the RemoteElectrical Tilt unit (RET).The maximum current for the TMA is 0.8 A and that for the RET is 1.5 A. The total currentfor both TMA and the RET is not larger than 2.3 A.Monitoring the Voltage Standing Wave Ratio (VSWR) of the antenna system

4.8.2 Working Environment of the MAFU ModuleThe MAFU receives UL signals from the antenna and sends them to the MTRU for furtherprocessing after the signals are processed with filtering and low noise amplification in theMAFU. The MAFU also receives DL signals from the MTRU and sends them to the antennafor transmission after the signals are filtered by the duplexer in the MAFU.

Figure 4-17 shows the working environment of the MAFU.

Figure 4-17 Working environment of the MAFU

Working environment of the MAFU is as follows:

The MAFU receives UL signals from the antenna and sends them to the MTRU for furtherprocessing after the signals are processed with filtering and low noise amplification in theMAFU.

The MAFU also receives DL signals from the MTRU and sends them to the antenna fortransmission after the signals are filtered by the duplexer in the MAFU.

The MAFU supplies power to the RET and the TMA through feeders.

The MAFU receives Antenna Interface Standards Group (AISG) signals from the NMONand sends them to the RET through feeders.The state of the MAFU is reported to the NMPT through the MTRU.

4.8.3 Working Principles of the MAFU ModuleThe MAFU module consists of the VSWR tester, ALD power tester, duplexer, LNA, BIAS TEE(BT), and receiving filter.

Figure 4-18 shows the working principles of the MAFU.







Figure 4-18 Working principles of the MAFU

VSWR TesterThe VSWR tester circuit checks the forward/reverse DL power through the analog detector. Theoutput voltage of the analog detector goes through the ADC to calculate the VSWR. If the VSWRexceeds the specified threshold, the VSWR alarm is reported. The VSWR alarm thresholddepends on the actual situation.

ALD Power TesterThe ALD consists of the TMA and RET. The 12 V DC power is supplied to the antenna connectorthrough the BT for the ALD. When exceptional current occurs to the ALD, it will be detectedand reported.

DuplexerThe duplexer consists of a RX filter and a TX filter. With the duplexer, a reliable channel isprovided for both RX signals and TX signals sharing the same antenna, and strong TX signalswill not affect weak RX signals.

LNAThe LNA amplifies RX signals sent from the antenna. The commands run on the NodeB can beused control the gain of the LNA. The LNA has self-detection function by which an alarm isreported when a fault occurs.

BTThe BT supplies DC power to the TMA and RET through the internal conductor of the MAFUantenna connector.

Receiving FilterIt filters RX signals to prevent interference from other signals.






4.8.4 LEDs and Ports on the MAFU ModuleThe three LEDs on the MAFU are used to display the working state. The nine ports on the MAFUpanel are used for RET antenna, RX channels, TX channels, input of TX signals, and power/communication.

Figure 4-19 shows the panel of the MAFU.

Figure 4-19 MAFU panel

Table 4-12 describes the meaning of the LEDs on the MAFU panel.

Table 4-12 LEDs on the MAFU panel


PWR Green OFFsteady

Power supply is exceptional.

ONsteady

Power supply is operational.








ALM Red ONsteady orflashingat a highfrequency

Alarms related to LNA or ALD current arereported.

OFFsteady

No alarm related to LNA or ALD current isreported.

VSWR Red ONsteady

VSWR alarms are reported.

OFFsteady

No VSWR alarm is reported.

Table 4-13 lists the ports on the MAFU.

Table 4-13 Ports on the MAFU panel

Connector Functions

RET It is used to connect the RET port on the NMON through a cable andtransmit RET control signals.

TEST_TX/RXA It is a port for test. The coupling of TX signals from the port labeledANT_TX to this port is 45 dB. Therefore, you can monitor TX signalsat this port. The coupling of RX signals from this port to the RX maindiversity port is 45 dB.

RXA0/RXA1 They are output ports for the main diversity RX channels. Theycorrespond to the output end of the main diversity LNA and areseparated into two ports after being divided. The input end of the maindiversity LNA corresponds to the port labeled ANT_TX/RXA at thetop of the cabinet.

RXB It is the output port for the diversity RX channel. It corresponds to theoutput end of the diversity LNA. The input end of the diversity LNAcorresponds to the ANT_RXB port.

TX It is the input port for TX signals. Signals transmitted from the MTRUare sent to the MAFU through this port and then to the antenna throughthe ANT_TX/RXA port.

PWR/COM It is the port for power and communication. The -48 V power issupplied to the MAFU through a cable connected to the DC powerdistribution box. The MAFU can communicate with the MTRUthrough a cable connected to the COM port on the MTRU.

Two antenna connectors labeled ANT_TX/RXA and ANT_RXB are located at the top of theMAFU. The two connectors extend out of the cabinet and are directly connected to jumpers ofthe antenna system.






The port labeled ANT_TX/RXA is a duplex antenna connector at which the system receivesUL signals and transmits DL signals.The port labeled ANT_RXB is an antenna connector at which the system receives ULsignals only.

4.9 MTRU ModuleThe MTRU module is the NodeB multicarrier TRansceiver unit. The MTRU modules can beconfigured in the six slots in the MTRU subrack.

4.9.1 Functions of the MTRU ModuleThe MTRU consists of two RX channels in mutual diversity mode and one TX channel. Themain functions are DL analog quadrature modulation, amplification of UL small signals, anddown conversion.

4.9.2 Working Environment of the MTRU ModuleThe MTRU receives 1-carrier or 2-carrier DL signals from the HBBI, processes and sends themto the MAFU. The MTRU receives UL signals from the MAFU, processes and sends them tothe HBBI. It also receives clock signals and control signals from the NMPT through the HBBI.

4.9.3 Working Principles of the MTRU ModuleThe MTRU consists of the interface module, digital transceiver, RF transceiver, HPA, feedbackchannel, CPU, and power module.

4.9.4 LEDs and Ports on the MTRU ModuleThe three LEDs on the MTRU are used to display the working state. The seven ports on theMTRU are used for the communication between the MAFU and the MTRU, the transmissionof RF signals, the reception of main diversity RF signals, the communication between the HBBIand the MTRU, and the power supply.

4.9.1 Functions of the MTRU ModuleThe MTRU consists of two RX channels in mutual diversity mode and one TX channel. Themain functions are DL analog quadrature modulation, amplification of UL small signals, anddown conversion.

Functions of the MTRU are as follows:

The MTRU consists of two RX channels in mutual diversity mode and one TX channel.Each channel supports two adjacent carriers.The digital part of the MTRX, a transceiver board in the MTRU, performs combinedclipping and baseband predistortion of the two carriers, processes UL and DL digital IFsignals of the two carriers, and controls the whole MTRU.The analog part of the MTRX performs DL analog quadrature modulation, amplificationof UL small signals, and down conversion.The MTRU includes an HPA, a power amplification module for DL signals.

The MTRU has an MPWR, a power supply module for the entire MTRU.

With one carrier configured on the NodeB, the output power per carrier at the antennaconnector is 40 W. With two carriers configured on the NodeB, the output power per carrierat the antenna connector is 20 W.The output power of the MTRU is 50 W.







4.9.2 Working Environment of the MTRU ModuleThe MTRU receives 1-carrier or 2-carrier DL signals from the HBBI, processes and sends themto the MAFU. The MTRU receives UL signals from the MAFU, processes and sends them tothe HBBI. It also receives clock signals and control signals from the NMPT through the HBBI.

Figure 4-20 shows the working environment of the MTRU.

Figure 4-20 Working environment of the MTRU

4.9.3 Working Principles of the MTRU ModuleThe MTRU consists of the interface module, digital transceiver, RF transceiver, HPA, feedbackchannel, CPU, and power module.

Figure 4-21 shows the working principles of the MTRU.

Figure 4-21 Working principles of the MTRU

Interface ModuleIt performs framing and de-framing of baseband IQ signals.

It also provides over-excitation protection.

Digital TransceiverThe digital transceiver consists of a digital transmitter and a digital receiver.






Functions of the digital transmitter are as follows:

Clipping the 1-carrier or 2-carrier digital IQ signals from the interface module to reducethe PAR of the DL signals;

Shaping filtering, interpolation and interpolation filtering;

Sending the generated data to the DPD processor;

The DPD chip compares input signals with feedback signals and performs pre-distortionof the signals in the digital domain;

Divided into two IQ paths, the signals go to the AQM modulator of the RF channel fromthe DAC.

Functions of the digital receiver are as follows:

Processing the digital intermediate frequency signals (on one or two carriers) from theADC, including down conversion, extract filtering, matched filtering and DAGC;

Sending the signals to the interface logic module for framing;

Performing RTWP measurement and correction of the main signals and diversity signalsafter matched filtering;

Reporting the result to the CPU.

RF Transceiver

The RF transceiver consist of an RF transmitter and an RF receiver.

The RF transmitter consists of the AQM, amplifier, numerically-controlled attenuator, filter anddigital transmitter.

Functions of the RF transmitter are as follows:

The digital transmitter outputs one-carrier or two-carrier signals. The signals combinedwith IQ signals are modulated into RF signals by the AQM. The precision of AQMmodulation can be high by means of DPD correction.

The modulated signals are sent to HPA after amplification, gain adjusting and filtering.

Functions of the RF receiver are as follows:

Down converting the UL signals from the MAFU through filtering. This intermediatefrequency can satisfy the ADC processing capabilities;

The SAW filter filters the signals at this frequency twice to restrain out-of-band interferencesignals.

Since the RX channel is a two-carrier one, it provides AGC simulation to expend thedynamic range of the receiver. Therefore, the receiver can reach its highest performanceregardless of the interference.

HPA

The HPA amplifies weak RF signals from the RF transmitter. The maximum output power is38 W or 50 W. It also has forward coupling for the standing wave ratio test, DPD feedback andDL gain stable loop.







Feedback Channel

The feedback channel down converts the forward TX signals that are coupled by the HPA andinput to the DPD processing system through the ADC. The DPD compares feedback signalswith input signals in the digital domain to determine the pre-distortion coefficient.

CPU

The CPU performs control and maintenance inside the MTRU board.

4.9.4 LEDs and Ports on the MTRU ModuleThe three LEDs on the MTRU are used to display the working state. The seven ports on theMTRU are used for the communication between the MAFU and the MTRU, the transmissionof RF signals, the reception of main diversity RF signals, the communication between the HBBIand the MTRU, and the power supply.

Figure 4-22 shows the panel of the MTRU.

Figure 4-22 MTRU panel

Table 4-14 describes the meaning of the LEDs on the MTRU panel.






Table 4-14 LEDs on the MTRU panel


RUN Green ON steady The version is being checked or the version checkfails.

OFF steady Power input is unavailable, the module is faulty, orthe slot number is invalid.

1 s on and 1 soff

The board is operational under currentconfiguration.

0.25 s on and0.25 s off

Software is being downloaded or uploaded, themodule is being initialized, or the initialization fails.

ALM Red ON steady orflashing at ahighfrequency



ACT Green ON steady Version check succeeds and the TX channel isphysically switched on.

OFF steady The version is being checked or the version checkfails.

1 s on and 1 soff

Version check succeeds and the TX channel isphysically switched off.

Table 4-15 describes the meaning of the ports on the panel of the MTRU.

Table 4-15 Ports on the MTRU

Connector Functions

COM It is a port used for the communication between theMAFU and the MTRU, and thus the mapping betweenthem can be identified. This port is connected to thePWR/COM port on the MAFU through a cable.

TX It is an RF TX port. This port is connected to the TX porton the MAFU through a cable.

RXA It is a main diversity RF RX port. This port is connectedto the corresponding RX port on the MAFU through acable according to the NodeB configuration.

RXB It is a diversity RF RX port. This port is connected to thecorresponding RX port on the MAFU through a cableaccording to the NodeB configuration.







Connector Functions

BBIF0 It is a port used for the communication between theMTRU and the HBBI. This port is connected to portCPRIA or port CPRIB on the HBBI panel through acable.

BBIF1 It is a port used for the communication between theMTRU and the HBBI. This port is connected to portCPRIA or port CPRIB on the HBBI panel through acable.

PWR It is a port for power supply and board positionidentification. The -48 V power is supplied for theMTRU through a cable connected to the DC powerdistribution box. Position of the MTRU can be identifiedby short-circuiting the pins of this port.

The two ports labeled BBIF0 and BBIF1 on the same MTRU must connect to different NBBIs/HBBIs.

When the ports BBIF0 and BBIF1 are not in use, block them with plastic pieces to keep them dust-free.

4.10 NBCB BoardThe NodeB Baseband Chassis Backplane (NBCB) is configured in the baseband subrack.

4.10.1 Functions of the NBCB BoardThe NBCB is the backplane for the baseband subrack. It provides the boards in the basebandsubrack with power paths, signal interconnection, and slot identification. The NBCB transmitssignals exchanged between boards to the NCCU and connects to the boards in other subracksthrough the ports and connectors on the NCCU panel.

4.10.1 Functions of the NBCB BoardThe NBCB is the backplane for the baseband subrack. It provides the boards in the basebandsubrack with power paths, signal interconnection, and slot identification. The NBCB transmitssignals exchanged between boards to the NCCU and connects to the boards in other subracksthrough the ports and connectors on the NCCU panel.

4.11 NCCU BoardThe NodeB Cable Connected Unit (NCCU) is installed in slot 17 of the baseband subrack.

4.11.1 Functions of the NCCU BoardThe NCCU is used to transfer signals between the baseband subrack and the other devices inthe NodeB. For example, the NCCU can transfer the power from the DC power distribution box,the E1/T1 signals from the transmission surge protection subrack, and the RS485 monitoringsignals.






4.11.2 Ports on the NCCU BoardThis part describes the functions of the ports on the NCCU.

4.11.1 Functions of the NCCU BoardThe NCCU is used to transfer signals between the baseband subrack and the other devices inthe NodeB. For example, the NCCU can transfer the power from the DC power distribution box,the E1/T1 signals from the transmission surge protection subrack, and the RS485 monitoringsignals.

4.11.2 Ports on the NCCU BoardThis part describes the functions of the ports on the NCCU.

Figure 4-23 shows the panel of the NCCU.

Figure 4-23 NCCU panel

Table 4-16 describes the ports on the NCCU.







Table 4-16 Ports on the NCCU

Connector Functions

COM It is used to transfer signals. The signals transferredon this port include the RS485 signals between theNMPT and the NFAN, RS485 signals of theenvironment monitoring device, reserved RS485signals, surge protection alarm signals for basic andextension cabinets, and BITS signals.

PWR Through this port, the power is transfered to thebaseband subrack and thus is supplied to all theboards in the baseband subrack.

E1/T1 It is used to transfer E1/T1 signals from NUTI0/1 orNDTI0/1 to port J3 on the BESP through the E1 signaltransfer cable.

4.12 NDTI BoardThe NodeB Digital Trunk Interface Units (NDTIs) can be configured in slots 12 and 13 in thebaseband subrack.

4.12.1 Functions of the NDTI BoardThe NDTI is used to transmit data between the NodeB and the RNC.

4.12.2 Working Environment of the NDTI BoardThe NDTI receives DL traffic data from the RNC and then sends it to the HDLP and HBBI. TheNDTI also receives UL traffic data from the HULP and HBBI and then sends it to the RNC.

4.12.3 Working Principles of the NDTI BoardThe NDTI consists of the control module, AAL2 processing module, IMA module, clockmodule, and ATM bus interface module.

4.12.4 LEDs and Ports on the NDTI BoardThe three LEDs on the NDTI are used to display the working state. There is no ports or connectorson the NDTI.

4.12.5 DIP Switches on the NDTI BoardThe NDTI has nine DIP switches numbered from S3 to S11. DIP switches S3 through S6 areused to set matched impedance for the eight E1/T1s, switches S7 through S10 to set groundingstate of the eight E1/T1s, and switch S11 to set working mode and selection indication of matchedimpedance.

4.12.1 Functions of the NDTI BoardThe NDTI is used to transmit data between the NodeB and the RNC.

The NDTI has the following functions:

The NDTI transmits data between the NodeB and the RNC.

The NDTI provides E1/T1 ports to transmit ATM cells in Inverse Multiplexing on ATM(IMA) mode or in unique (UNI) mode and supports AAL2 switching.






Each NDTI supports eight E1/T1s for communication between the NodeB and the RNC.

The NDTI supports co-transmission between the 2G system and the 3G system in fractionalATM mode and in circuit emulation mode. It also provides transport channels for otherdevices in the equipment room.The NDTI extracts clock signals from the Iub interface and provides clock reference forthe entire NodeB.

Both the NDTI and the NUTI are Iub interface boards and can be installed in slots 12 and 13 of thebaseband subrack. They provide different trunk transmission modes for the NodeB.

The NodeB can configure up to four Iub interface boards. At present, slots 14 and 15 in the basebandsubrack support only the NUTI mounted with a subrack for cabling from the front. Actualconfigurations depend on networking requirements.

4.12.2 Working Environment of the NDTI BoardThe NDTI receives DL traffic data from the RNC and then sends it to the HDLP and HBBI. TheNDTI also receives UL traffic data from the HULP and HBBI and then sends it to the RNC.

Figure 4-24 shows the working environment of the NDTI.

Figure 4-24 Working environment of the NDTI

Working environment of the NDTI is as follows:The NDTI receives DL traffic data from the RNC and then sends it to the HDLP and HBBI.

The NDTI also receives UL traffic data from the HULP and HBBI and then sends it to theRNC.The NDTI receives control plane data from the RNC and transmits it to the NMPT.

When the NodeB extracts clock signals from the Iub interface, the NDTI also extracts Iubinterface clock signals and sends them to the NMPT as primary clock of the entire NodeB.

4.12.3 Working Principles of the NDTI BoardThe NDTI consists of the control module, AAL2 processing module, IMA module, clockmodule, and ATM bus interface module.

Figure 4-25 shows the working principles of the NDTI.







Figure 4-25 Working principles of the NDTI

Control Module and AAL2 Processing ModuleThe two modules perform AAL2 switching, management and control functions.

IMA ModuleThe module allocates cells to different E1/T1 links before transmitting data to the RNC. Thismodule also restores the sequence of the cells received from the RNC.

Clock ModuleThis module extracts reference clock signals from E1/T1 links.

ATM Bus Interface ModuleThis module interfaces with the ATM bus of the backplane and provides service transmissionchannels.

4.12.4 LEDs and Ports on the NDTI BoardThe three LEDs on the NDTI are used to display the working state. There is no ports or connectorson the NDTI.

Figure 4-26 shows the panel of the NDTI. Only LEDs are available on the panel. The label onthe panel indicates the board name and the bar code. Thus, the label uniquely identifies the board.






Figure 4-26 NDTI panel

Table 4-17 describes the meaning of the LEDs on the NDTI panel.

Table 4-17 NDTI LEDs


RUN Green ONsteady

Power input is available but the board is faulty.

OFFsteady

Power input is unavailable or the board is faulty.

Green 1 s on and1 s off

The board is operational under current configuration.


Software is being loaded or the board is not configured.








ALM

Red ONsteady orflashing ata highfrequency


OFFsteady


ACT Green ONsteady

The board is working.

OFFsteady

The board software is not started.

4.12.5 DIP Switches on the NDTI BoardThe NDTI has nine DIP switches numbered from S3 to S11. DIP switches S3 through S6 areused to set matched impedance for the eight E1/T1s, switches S7 through S10 to set groundingstate of the eight E1/T1s, and switch S11 to set working mode and selection indication of matchedimpedance.

Figure 4-27 shows the DIP switches on the NDTI.

Figure 4-27 DIP switches on the NDTI

The DIP switch S11 selects the E1/T1 working mode and matched impedance of the E1/T1 cables. At present, eight E1/T1 cables can adopt only one matched impedance. Bits 1






and 2 are in use, and Bits 3 and 4 are reserved. S11 informs the software of the matchedimpedance setting for the E1/T1 cable.

DIP switches S3 through S10 are used to set the hardware. Note that DIP switches S3through S6 are used to set matched impedance for the eight E1/T1s and that switches S7through S10 are reserved to set grounding state of the eight E1/T1s.

You can set the grounding state of the E1/T1s on the BESP. For details, refer to 4.2.3 DIP Switches onthe BESP Board.

DIP switches on the NDTI are set to 75-ohm unbalanced transmission mode before delivery.Table 4-18, Table 4-19, Table 4-20, and Table 4-21 list definitions of the DIP switches.

Table 4-18 DIP switch S11 on the NDTI

DIP Switch Bit 75-Ohm E1 120-Ohm E1

S11 1 ON ON

2 ON OFF

Table 4-19 DIP switch S11 on the NDTI

DIP Switch Bit 100-Ohm T1 Reserved

S11 1 OFF OFF

2 ON OFF

Table 4-20 DIP switches S3, S4, S5, and S6 on the NDTI

DIP Switch Link No. Bit 75-Ohm E1 120-Ohm E1

S3 0 1 ON OFF

2 OFF OFF

1 3 ON OFF

4 OFF OFF

S4 2 1 ON OFF

2 OFF OFF

3 3 ON OFF

4 OFF OFF

S5 4 1 ON OFF

2 OFF OFF

5 3 ON OFF

4 OFF OFF







DIP Switch Link No. Bit 75-Ohm E1 120-Ohm E1

S6 6 1 ON OFF

2 OFF OFF

7 3 ON OFF

4 OFF OFF

Table 4-21 DIP switches S3, S4, S5, and S6 on the NDTI

DIP Switch Link No. Bit 100-OhmT1

Reserved

S3 0 1 OFF ON

2 ON ON

1 3 OFF ON

4 ON ON

S4 2 1 OFF ON

2 ON ON

3 3 OFF ON

4 ON ON

S5 4 1 OFF ON

2 ON ON

5 3 OFF ON

4 ON ON

S6 6 1 OFF ON

2 ON ON

7 3 OFF ON

4 ON ON

4.13 NFAN ModuleThe NodeB FAN Box (NFAN) is installed in the fan subrack.

4.13.1 Functions of the NFAN ModuleThe NFAN provides heat dissipation for the baseband subrack, MTRU subrack, and MAFUsubrack.

4.13.2 LEDs and Ports on the NFAN Module






The only one LED on the NFAN is used to display the working state. The port labeled COM isused for the communication between the NFAN and the NMPT and the port labeled PWR isused for power input of fans.

4.13.1 Functions of the NFAN ModuleThe NFAN provides heat dissipation for the baseband subrack, MTRU subrack, and MAFUsubrack.

Functions of the NFAN are as follows:

The NFAN provides heat dissipation for the baseband subrack, MTRU subrack, and MAFUsubrack through the ventilation loop together with the air inlet of the cabinet.The NFAN consists of four independent axial-flow fans working in smart speed controlmode. The NFAN monitoring board controls the speed and state of the fans and connectsto the NMPT through the RS485 bus.By adjusting the speed of the fans according to the temperature parameters, the NMPTcontrols the speed of the fans and monitors the operation state of the fans in real time.

4.13.2 LEDs and Ports on the NFAN ModuleThe only one LED on the NFAN is used to display the working state. The port labeled COM isused for the communication between the NFAN and the NMPT and the port labeled PWR isused for power input of fans.

The only LED on the NFAN panel is labeled STATE. The label on the panel indicates the modulename and the bar code. Thus, the label uniquely identifies the module. Figure 4-28 shows thepanel of the NFAN.

Figure 4-28 NFAN panel

The LED labeled STATE on the NFAN panel indicates the operation state of fans, as describedin Table 4-22.

Table 4-22 NFAN LED


STATE Green 1 s on and 1 s off The NFAN is operational.

0.25 s on and 0.25s off

The module fails the registration.

ON steady The module is faulty or being reset.

OFF steady Power input is unavailable or themodule is faulty.








Red 0.25 s on and 0.25s off

The module is in alarm state.

ON steady The module is faulty or being reset.


Yellow ON steady The module is faulty or being reset.


Table 4-23 lists the ports on the NFAN panel and their functions.

Table 4-23 Ports on the NFAN panel

Connector Functions

COM It is used for communication between theNFAN and the NMPT. The NMPT controls thespeed and state of the fans in the NFAN.

PWR It is used for power input of fans. The power isdirectly led from the DC power distributionbox to the fan subrack through this port.

4.14 NMON BoardThe NodeB Monitoring Unit (NMON) is configured in slot 16 in the baseband subrack.

4.14.1 Functions of the NMON BoardThe NMON controls the RET controller and provides Boolean value monitoring interfaces suchas the 32-line Boolean input interface and 7-line Boolean output interface.

4.14.2 Working Environment of the NMON BoardThe NMON connects to the NMPT, receives control signals from the NMPT, and reports theNMON state to the NMPT. The NMON also controls the RET through the MAFU.

4.14.3 Working Principles of the NMON BoardThe NMON consists of the CPU module, AISG modulation and demodulation module, Booleaninput module, and Boolean output module.

4.14.4 LEDs and Ports on the NMON BoardThe three LEDs on the NMON are used to display the working state. The port labeled MON isfor Boolean input/output signals and that labeled RET is for RET control signals.

4.14.1 Functions of the NMON BoardThe NMON controls the RET controller and provides Boolean value monitoring interfaces suchas the 32-line Boolean input interface and 7-line Boolean output interface.






4.14.2 Working Environment of the NMON BoardThe NMON connects to the NMPT, receives control signals from the NMPT, and reports theNMON state to the NMPT. The NMON also controls the RET through the MAFU.

Figure 4-29 shows the working environment of the NMON.

Figure 4-29 Working environment of the NMON

Working environment of the NMON is as follows:

The NMON connects to the NMPT, receives control signals from the NMPT, and reportsthe NMON state to the NMPT.

The NMON also controls the RET through the MAFU.

The NMON provides input/output interfaces for the NodeB to monitor other devices. The32-line input interface is used to collect alarms of the peripheral devices and the 7-lineoutput interface is used to control other equipment.

4.14.3 Working Principles of the NMON BoardThe NMON consists of the CPU module, AISG modulation and demodulation module, Booleaninput module, and Boolean output module.

Figure 4-30 shows the working principles of the NMON.

Figure 4-30 Working principles of the NMON

CPU Module

This module provides address and data bus and is connected with read/write control signal cablesand interrupt input response signal cables.







AISG modulation and demodulation moduleThis module processes AISG signals that control the RET.

Boolean input module and Boolean output moduleThe two modules provide extension ports for collecting external alarms and for controllingperipheral devices.

4.14.4 LEDs and Ports on the NMON BoardThe three LEDs on the NMON are used to display the working state. The port labeled MON isfor Boolean input/output signals and that labeled RET is for RET control signals.

The LEDs and ports on the NMON are located on the panel. The label on the panel indicates theboard name and the bar code. Thus, the label uniquely identifies the board. Figure 4-31 showsthe panel of the NMON.

Figure 4-31 NMON panel

Table 4-24 describes the meaning of the LEDs on the NMON panel.






Table 4-24 NMON LEDs


RUN Green ONsteady

The power input isoperational but the boardis faulty.

OFFsteady

Power input is unavailableor the board is faulty.

1 s on and1 s off

The board is operationalunder currentconfiguration.


Software is being loadedor the board is notconfigured.

ALM Red ONsteady orflashing ata highfrequency


OFFsteady


ACT Green ONsteady

The board is operational.

OFFsteady

The board software is notstarted.

Table 4-25 describes the meaning of the ports on the NMON panel.

Table 4-25 NMON ports

Connector Functions

MON Reserved

RET This port is for RET control signals. It is connected to the RET porton the MAFU through a cable.

4.15 NMPT BoardThe NodeB Main Processing and Timing Units (NMPTs) are configured in slot 10 and slot 11in the baseband subrack.

4.15.1 Functions of the NMPT BoardThe NMPT controls all the boards and modules configured on a NodeB and processes varioussignaling. You can directly connect an LMT to the NMPT for OM of the NodeB.

4.15.2 Working Environment of the NMPT Board







The NMPT controls and manages the HULP, HDLP, HBBI, HBOI, NDTI, NUTI, NMON,MTRU, MAFU, and NFAN.

4.15.3 Working Principles of the NMPT BoardThe NMPT consists of the CPU module, clock module, and logic control module.

4.15.4 LEDs and Ports on the NMPT BoardThe three LEDs on the NMPT are used to display the working state. The NMPT has six portsand connectors.

4.15.1 Functions of the NMPT BoardThe NMPT controls all the boards and modules configured on a NodeB and processes varioussignaling. You can directly connect an LMT to the NMPT for OM of the NodeB.

The NMPT has the following functions:

It controls all the boards and modules configured on a NodeB and processes varioussignaling.It controls and detects fans and environment monitoring devices through the NCCU.

It provides primary clock signals for the NodeB.

You can directly connect an LMT to the NMPT for OM of the NodeB.

The NMPT controls the boards configured on a NodeB as follows:

The NMPT directly controls and manages the boards in the baseband subrack such as the HULP,HDLP, NBBI/HBBI, NUTI, NDTI, and NMON.

The NMPT manages the MAFU through the NBBI/HBBI and MTRU.

The NMPT manages the MTRU through the NBBI/HBBI.

4.15.2 Working Environment of the NMPT BoardThe NMPT controls and manages the HULP, HDLP, HBBI, HBOI, NDTI, NUTI, NMON,MTRU, MAFU, and NFAN.

Figure 4-32 shows the working environment of the NMPT.

Figure 4-32 Working environment of the NMPT

Working environment of the NMPT is as follows:






The NMPT controls and manages the HULP, HDLP, HBBI, HBOI, NDTI, and NUTIthrough the ATM bus.

The NMPT controls and manages the NMON through the RS485 bus.

The NMPT manages the MTRU through the HBBI/HBOI.

The NMPT manages the MAFU through the HBBI/HBOI and MTRU.

The NMPT tests and controls the fans and environment monitoring devices through theNCCU. The NCCU serves a path for signals only.

You can directly connect an LMT to the NMPT for OM of the NodeB.

The NMPT provides primary clock signals for the entire NodeB.

4.15.3 Working Principles of the NMPT BoardThe NMPT consists of the CPU module, clock module, and logic control module.

Figure 4-33 shows the working principles of the NMPT.

Figure 4-33 Working principles of the NMPT







CPU ModuleThis module performs resource management, equipment management, performance detection,configuration management, NBAP common signaling processing, software download, active/standby switchover, and management of other boards in the NodeB.

Clock ModuleThis module provides primary clock signals for the entire NodeB. The signals can be extractedfrom the Iub interface, external synchronization clock source (such as BITS), or the GPS clock.The clock frequency stability is higher than 0.05 ppm. The clock module provides all the boardswith basic timing clock signals such as BFN, frame clock signals, clock signals at 4 times thechip rate, and 10-MHz phase-locked clock signals. It also provides clock signals for combinedcabinets.

Logic Control ModuleThis module controls the in-position information of other boards and the switchover betweenactive/standby NMPTs.

4.15.4 LEDs and Ports on the NMPT BoardThe three LEDs on the NMPT are used to display the working state. The NMPT has six portsand connectors.

The LEDs and ports are located on the panel. The label on the panel indicates the board nameand the bar code. Thus, the label uniquely identifies the board. Figure 4-34 shows the panel ofthe NMPT.






Figure 4-34 NMPT panel

Table 4-26 describes the meaning of the LEDs on the NMPT panel.

Table 4-26 NMPT LEDs


RUN Green ON steady Power input is available but theboard is faulty.

OFF steady Power input is unavailable or theboard is faulty.

1 s on and 1 s off The board is operational undercurrent configuration.

0.25 s on and 0.25 soff

Software is being loaded or the boardis not configured.

ALM Red ON steady orflashing at a highfrequency










ACT Green ON steady The board is in active state.

OFF steady The board is in standby state.

Table 4-27 describes the meaning of the ports on the NMPT panel.

Table 4-27 NMPT ports

Connector Functions

10M Test port for the 10-MHz master clock.

FCLK Test port for Transmission Time Interval (TTI)frame synchronization signals. Default value:10 ms.

GPS Port for GPS clock signals. It connects to theGPS port inside the cabinet top to lead GPSsignals to the NMPT.

RST Hardware reset button. By pressing this button,you can reset the NMPT and thus the entireNodeB.

ETH Ethernet port for maintenance. Through thisport, you can directly connect an LMT to theNMPT for local OM of the NodeB.

COM Serial port for debugging.

4.16 NPMI BoardThe NodeB Power Monitor unit Interface Board (NPMI) is installed in the upper part on the leftof the BTS3812AE cabinet.

4.16.1 Functions of the NPMI BoardThe NodeB Power Monitor unit Interface Board (NPMI) is installed in the up left cabinet. Ittransfers monitoring signals in the BTS3812AE.

4.16.2 Ports on the NPMI BoardThe NPMI transfers monitoring signals of the BTS3812AE.

4.16.1 Functions of the NPMI BoardThe NodeB Power Monitor unit Interface Board (NPMI) is installed in the up left cabinet. Ittransfers monitoring signals in the BTS3812AE.

The NPMI monitors the following types of signals:

Temperature sensor signals of the built-in batteries

Temperature sensor signals of the external batteries






Alarm signals of broken battery loop

RS485 transfer signals

Optical coupling output control signals

Dry contact output control signals

Humidity and temperature signals

Alarm signals of faulty surge protector

Smoke sensor signals

Water sensor signals

Door control sensor signals

4.16.2 Ports on the NPMI BoardThe NPMI transfers monitoring signals of the BTS3812AE.

Figure 4-35 shows the ports on the NPMI.

Figure 4-35 Ports on the NPMI

Table 4-28 describes the ports on the NPMI.

Table 4-28 Ports on the HBBI panel

Connector ConnectorType

Function

BAT_TEM3 2-pin connector Port for temperature sensor signals of thebatteries

BAT_TEM2 2-pin connector Port for temperature sensor signals ofexternal batteries







Connector ConnectorType

Function

BAT_TEM1 2-pin connector Port for temperature sensor signals of built-in batteries

FUL_ALM 2-pin connector Port for alarm of broken battery loop

COM1/COM1/COM1/COM4

4-pin connector Ports for transferring RS485 signals

JAC2/JAC1 2-pin connector Ports for optical coupling output controlsignals

JK2/JK1 2-pin connector Port for dry contact output control signals

JTD1 to JTD7 4-pin connector Reserved

TEM_HUM 4-pin connector Port for humidity and temperature signalinput

JKM1 2-pin connector Port for alarm signals of faulty surgeprotector

SMOKE 2-pin connector Port for smoke sensor signals

WATER 4-pin connector Port for water sensor signals

DOOR 2-pin connector Port for door control alarms

J1 DB50, female Connector to transfer NPMI signals to thePMU

4.17 NUTI BoardThe NodeB Universal Transport Interface Units (NUTIs) can be configured in slots 12–15 inthe baseband subrack.

4.17.1 Functions of the NUTI BoardThe NUTI transmits data between the NodeB and the RNC. It supports both ATM transportmode and IP transport mode.

4.17.2 Working Environment of the NUTI BoardThe NUTI receives DL traffic data from the RNC and then sends it to the HDLP and HBBI. TheNUTI also receives UL traffic data from the HULP and HBBI and then sends it to the RNC.

4.17.3 Working Principles of the NUTI BoardThe NUTI board consists of the control module, AAL2 processing module, ATM bus interfacemodule, IMA module, clock module, IP module, and sub-board interface module.

4.17.4 LEDs and Ports on the NUTI BoardThe three LEDs on the NUTI are used to display the working state. The two ports (for traffic)are connected to the transmission device or the RNC for receiving and transmitting data on the100 Mbit/s full-duplex fast Ethernet ports.4.17.5 DIP Switches on the NUTI BoardThe NUTI has only one DIP switch labeled S11. This DIP switch is used to select the E1/T1working mode and the matched impedance of the E1/T1 cables. At present, eight E1s/T1s support






only one type of the matched impedance. Bits 1 and 2 are in use while bits 3 and 4 are reserved.S11 informs the software of the matched impedance setting for the E1/T1 cable.

4.17.1 Functions of the NUTI BoardThe NUTI transmits data between the NodeB and the RNC. It supports both ATM transportmode and IP transport mode.

The NUTI has the following functions:

The NDTI transmits data between the NodeB and the RNC.

Each NUTI without E1 sub-board supports eight E1/T1s.

Each NUTI with an E1 transport sub-board supports 16 E1/T1s.

Each NUTI provides two FE electrical ports.

The NUTI supports both ATM transport and IP transport.

For details about the three types of sub-boards supported on the NUTI, refer to Table4-29.

Table 4-29 Sub-boards supported on the NUTI

Sub-Board Port Supported on Sub-Board

Universal E1 transportsub-board

Eight E1 electrical ports

Channelized opticalsub-board

One optical port

Unchannelized opticalsub-board

Two optical ports

Both channelized and unchannelized optical sub-boards support STM-1 transport and OC-3 transport.

The channelized optical sub-board does not support IP transport or fractional ATM transport.

Slots 14 and 15 in the baseband subrack support only the NUTI mounted with a sub-board for cabling fromthe front.

4.17.2 Working Environment of the NUTI BoardThe NUTI receives DL traffic data from the RNC and then sends it to the HDLP and HBBI. TheNUTI also receives UL traffic data from the HULP and HBBI and then sends it to the RNC.

Figure 4-36 shows the working environment of the NUTI.







Figure 4-36 Working environment of the NUTI

Working environment of the NUTI is as follows:

The NUTI receives DL traffic data from the RNC and then sends it to the HDLP and HBBI.

The NUTI also receives UL traffic data from the HULP and HBBI and then sends it to theRNC.

The NUTI receives control plane data from the RNC and transmits it to the NMPT.

When the NodeB extracts clock signals from the Iub interface, the NUTI also extracts Iubinterface clock signals and sends them to the NMPT as primary clock of the entire NodeB.

4.17.3 Working Principles of the NUTI BoardThe NUTI board consists of the control module, AAL2 processing module, ATM bus interfacemodule, IMA module, clock module, IP module, and sub-board interface module.

Figure 4-37 shows the working principles of the NUTI.

Figure 4-37 Working Principles of the NUTI

Control Module and AAL2 Processing Module

The two modules perform AAL2 switching, management and control functions.

ATM Bus Interface Module

This module interfaces with the ATM bus of the backplane and provides service transmissionchannels.






IMA ModuleIn ATM transport mode, this module allocates cells to different E1/T1 links before transmittingdata to the RNC. This module also restores the sequence of the cells received from the RNC.

Clock ModuleThis module extracts reference clock signals from E1/T1 links.

IP ModuleThis module performs IP over E1 function and FE function. In IP transport mode, data isexchanged between the NodeB and the RNC through E1/T1 ports or FE ports.

Sub-Board Interface ModuleThis module provides sub-board for interface extension such as STM-1 optical interface and E1/T1 interface.

4.17.4 LEDs and Ports on the NUTI BoardThe three LEDs on the NUTI are used to display the working state. The two ports (for traffic)are connected to the transmission device or the RNC for receiving and transmitting data on the100 Mbit/s full-duplex fast Ethernet ports.

The label on the panel indicates the board name and the bar code. Thus, the label uniquelyidentifies the board. Figure 4-38 shows the panel of the NUTI.







Figure 4-38 NUTI panel

Table 4-30 describes the meaning of the LEDs on the NUTI panel.

Table 4-30 NUTI LEDs


RUN Green ON steady Power input is available but the boardis faulty.

OFF steady Power input is unavailable or the boardis faulty.

1 s on and 1 s off The board is operational under currentconfiguration.

0.25 s on and 0.25s off

Software is being loaded or the boardis not configured.

ALM Red OFF steady No alarm is reported.

ON steady orflashing at a highfrequency










Table 4-31 describes the ports on the NUTI.

Table 4-31 NUTI ports

Connector Functions

FE 0 This port (for traffic) is connected to the transmission device or the RNCfor receiving and transmitting of data on the 100 Mbit/s full-duplex fastEthernet port.

FE 1 This port (for traffic) is connected to the transmission device or the RNCfor receiving and transmitting of data on the 100 Mbit/s full-duplex fastEthernet port.

4.17.5 DIP Switches on the NUTI BoardThe NUTI has only one DIP switch labeled S11. This DIP switch is used to select the E1/T1working mode and the matched impedance of the E1/T1 cables. At present, eight E1s/T1s supportonly one type of the matched impedance. Bits 1 and 2 are in use while bits 3 and 4 are reserved.S11 informs the software of the matched impedance setting for the E1/T1 cable.

Figure 4-39 shows DIP switch S11 on the NUTI.

Figure 4-39 DIP switch on the NUTI







Table 4-32 and Table 4-33 describe definitions of the four bits on DIP switch S11.

Table 4-32 Definitions of bits on DIP switch S11 on the NUTI (I)

DIP Switch Bit 75-Ohm E1 120-Ohm E1 Default Setting

S11 1 OFF ON OFF

2 OFF ON OFF

3 Reserved Reserved OFF


Table 4-33 Definitions of bits on DIP switch S11 on the NUTI (II)

DIP Switch Bit 100-Ohm T1 100-Ohm J1 Default Setting

S11 1 ON OFF OFF

2 OFF ON OFF



The DIP switch on the NUTI defaults to 75-ohm unbalanced transmission mode before delivery.

4.18 PMU ModuleThe Power and Environment Monitoring Unit (PMU) is installed in the power subrack of thecabinet.

4.18.1 Functions of the PMU ModuleThe PMU can manage the power system and perform battery charging and discharging. It canreport water alarms, smokes alarms, door control alarms, standby Boolean alarms, ambienthumidity and temperature, battery temperature, and standby analog values.

4.18.2 Working Environment of the PMU ModuleOne PMU is configured in the power subrack of the BTS3812AE cabinet. It collects, processes,and reports environment variables to the NMPT and thus is the center of monitoring power andenvironment of the BTS3812AE. The PMU communicates with the NMPT through the RS485serial port. It communicates with the NPMI through the PMU monitoring cable.

4.18.3 LEDs and Ports on the PMU Module (BTS3812A)The two LEDs on the PMU of the BTS3812A are used to display the working status of the PMUmodule. The PMU has four ports.

4.18.4 DIP Switches on the PMU ModuleThe PMU DIP switch is on the back of the PMU module. There are eight bits of the DIP switchon the PMU module. The four lower bits numbered 1, 2, 3, and 4 are in binary format and areused for address of the PMU node. The four higher bits numbered 5, 6, 7, and 8 are reserved atpresent. The eight bits are all set to OFF before delivery.






4.18.1 Functions of the PMU ModuleThe PMU can manage the power system and perform battery charging and discharging. It canreport water alarms, smokes alarms, door control alarms, standby Boolean alarms, ambienthumidity and temperature, battery temperature, and standby analog values.

Functions of the PMU are as follows:

The PMU manages the power system and performs battery charging and discharging.

The PMU communicates with the NMPT through the RS485 serial port.

It communicates with the NPMI through the PMU monitoring cable.

It can report water alarms, smokes alarms, door control alarms, standby Boolean alarms,ambient humidity and temperature, battery temperature, and standby analog values.The PMU provides functions such as testing power distribution, reporting alarms. It canalso report simple dry contact alarms.

4.18.2 Working Environment of the PMU ModuleOne PMU is configured in the power subrack of the BTS3812AE cabinet. It collects, processes,and reports environment variables to the NMPT and thus is the center of monitoring power andenvironment of the BTS3812AE. The PMU communicates with the NMPT through the RS485serial port. It communicates with the NPMI through the PMU monitoring cable.

Figure 4-40 shows the installation position of the PMU. The part in dark color is the PMU.

Figure 4-40 Installation position of the PMU

4.18.3 LEDs and Ports on the PMU Module (BTS3812A)The two LEDs on the PMU of the BTS3812A are used to display the working status of the PMUmodule. The PMU has four ports.

There are two LEDs, one RJ45 serial port, one DB50 connector, two battery switches, and twopower supply test points on the PMU panel. Figure 4-41 shows the panel of the PMU.







Figure 4-41 PMU panel

Table 4-34 describes the LEDs on the PMU panel.

Table 4-34 PMU LEDs


RUN Green 1 s ON and 1 sOFF


0.25 s ON and0.25 s OFF

The hardware is functional but it fails tocommunicate with upper-level equipment. Ifthe communication between them fails for twoconsecutive seconds, the communicationfails.

ON steady/OFF steady

An exception occurs in the program and theLED is out of control.







ALM Red ON steady orflashing at ahigh frequency

The following alarms may be generated:Mains failure

Mains power overvoltage or undervoltage

Busbar overvoltage or undervoltage

Battery charging overcurrent

Battery disconnection

Battery group loop failure

Environment over-temperature

Environment humidity abnormal

Environment water

Environment smoking

PSU not functional

Load disconnection

OFF steady No alarms occur.

Table 4-35 describes the ports on the PMU panel.

Table 4-35 PMU ports

Port Functions

RS232/RS422 An independent serial port for communicationwith the main serial port on the NMPT

COM DB50 connector for connection with PMUmonitoring cable

ON Manually powering on batteries

OFF Manually powering off batteries

4.18.4 DIP Switches on the PMU ModuleThe PMU DIP switch is on the back of the PMU module. There are eight bits of the DIP switchon the PMU module. The four lower bits numbered 1, 2, 3, and 4 are in binary format and areused for address of the PMU node. The four higher bits numbered 5, 6, 7, and 8 are reserved atpresent. The eight bits are all set to OFF before delivery.

Figure 4-42 shows the 8-bit DIP switch on the PMU.







Figure 4-42 DIP switch on the PMU module

(1) Rear view of the PMU

In a real DIP switch on the PMU, the numbers of the digits are marked upside down. For your easyunderstanding, the numbers of the digits have been inverted in Figure 4-42.

4.19 PSU ModuleThe Power Supply Unit (PSU) is installed in the power subrack of the cabinet.

4.19.1 Functions of the PSU ModuleThe PSU in the BTS3812A converts 220 V AC power into -48 V DC and supplies power todevices in the BTS3812AE cabinet.

4.19.2 Working Environment of the PSU ModuleThe Power Supply Unit (PSU) supplies power to the BTS3812AE. PSUs are installed in thepower subrack of the BTS3812AE cabinet. In minimum configuration, PSUs work in 1+1 mode;in maximum configuration, three PSUs are installed.

4.19.3 LEDs and Ports on the PSU ModuleThe three LEDs on the PSU are used to display the working state. There are no ports on the PSUmodule.

4.19.1 Functions of the PSU ModuleThe PSU in the BTS3812A converts 220 V AC power into -48 V DC and supplies power todevices in the BTS3812AE cabinet.

Functions of the PSU are as follows:

Converting 220 V AC power into -48 V DC and supplying the power to devices in theBTS3812AE cabinet






Monitoring faulty module alarms, module protection alarms, and AC power failure alarms

Monitoring battery floating charge data and controlling the batteries through voltage andcurrent regulation

4.19.2 Working Environment of the PSU ModuleThe Power Supply Unit (PSU) supplies power to the BTS3812AE. PSUs are installed in thepower subrack of the BTS3812AE cabinet. In minimum configuration, PSUs work in 1+1 mode;in maximum configuration, three PSUs are installed.

Figure 4-43 shows the installation position of the PSUs. Those parts in dark color are PSUs.

Figure 4-43 Installation position of the PSUs

4.19.3 LEDs and Ports on the PSU ModuleThe three LEDs on the PSU are used to display the working state. There are no ports on the PSUmodule.

Figure 4-44 shows the LEDs on the PSU panel.

Figure 4-44 PSU panel

Table 4-36 describes the meaning of the LEDs on the PSU panel.







Table 4-36 PSU LEDs


Power inputLED (top)

Green ON steady No alarm is reported.

OFF steady There is no AC power input or the power fusefails.

PowerprotectionLED (middle)

Yellow

ON steady The PSU starts power protection when theinput power is undervoltage or overvoltage orthe PSU works over-temperature.


Power failureLED (bottom)

Red ON steady Unrecoverable faults occur inside the PSU,including power output overvoltage, nopower output, and fan failure.







5.1 External Power Cables and PGND Cables of theBTS3812AE

This part describes the external power cables and the PGND cables of the BTS3812AE.

5.1.1 External Power Cables of the BTS3812AEThe external AC power cable of the BTS3812AE transmits 220 V AC power or 110 V AC powerfrom the power interface box to the wiring terminals for external power on the surge protectorinside the cabinet. The BTS3812AE supports the following power input modes: 220 V AC three-phase four-wire mode, 220 V AC single-phase two-wire mode, and two-live-wire mode.

5.1.2 PGND Cables of the BTS3812AEPGND cables are used to guarantee proper grounding of the cabinet.

5.1.1 External Power Cables of the BTS3812AEThe external AC power cable of the BTS3812AE transmits 220 V AC power or 110 V AC powerfrom the power interface box to the wiring terminals for external power on the surge protectorinside the cabinet. The BTS3812AE supports the following power input modes: 220 V AC three-phase four-wire mode, 220 V AC single-phase two-wire mode, and two-live-wire mode.

StructureBTS3812AE AC power cables should be readily prepared on site. Specifications of the ACpower cables are as follows:

In 220 V AC three-phase four-wire mode, the cross-sectional area of the Live (L) wire is16 mm2 and that of the Neutral (N) wire is 25 mm2.In 220 V AC single-phase two-wire mode, the cross-sectional area of the L wire is 16mm2 and that of the N wire is 25 mm2.

In two-live-wire mode, the cross-sectional area of the L wire is 16 mm2 and that of the Nwire is 25 mm2.

External power cables are often purchased on the local market. The color of the power cables mustbe subject to local laws or regulations.

If the color of the power cables is not stipulated in the local laws or regulations, use the cablesdelivered with the equipment.

By default, the L wire delivered with the equipment is red and the N wire is black.

The maximum current of the N wire of the BTS3812AE power cable is 80 A. You can make OTterminals for AC power cables on site.

The through-flow for the upper-level protection devices of the BTS3812AE should not be larger than20 A.

Installation PositionsPower cables in the three modes are routed into the cabinet through the waterproof tube at thebottom of the BTS3812AE cabinet and then are connected to the corresponding wiring posts onthe AC surge protector in the surge protection and filter box. Table 5-1 describes the installationpositions.

5 BTS3812AE CablesBTS3812AE






Table 5-1 Installation positions of the BTS3812AE AC power cables

Input Mode Power Cable Connecting to ... on the AC SurgeProtector

220 V three-phase four-wire L1 Wiring post labeled L1

L2 Wiring post labeled L2


N Wiring post labeled N

220 V single-phase two-wire

L Wiring post labeled L1, L2, or L3 (Notethat a short-circuiting copper bar isrequired to connect the posts labeled L1,L2, and L3 in this situation.)


Two-live-wire L1 Wiring post labeled L1



5.1.2 PGND Cables of the BTS3812AEPGND cables are used to guarantee proper grounding of the cabinet.

Structure

The BTS3812AE PGND cable is yellow and green and has the cross-sectional area of 25mm2.

Installation Positions

One end of the PGND cable connects to the grounding bar outside the cabinet and the other endconnects to the grounding bar inside the cabinet.

5.2 Internal Power Cables of the BTS3812AEThis part describes the internal power cables of the BTS3812AE.

5.2.1 Power Cables of the Baseband Subrack/MTRUs of the BTS3812AEThe power cables of the baseband subrack/MTRU connect the DC power distribution box to thebaseband subrack and the MTRU to supply power for the two subracks.

5.2.2 Power Cables of the Fans of the BTS3812AEThe power cable of the fan subrack connects the DC power distribution box to the NFAN tosupply power for the fans.

5.2.3 Power Cables of the MAFUs of the BTS3812AE

BTS3812AEHareware Description 5 BTS3812AE Cables





The power cable of the MAFUs of the BTS3812AE connects the DC power distribution box tothe MAFUs to supply power for the MAFUs. This cable is also used to identify the mappingbetween MAFUs and MTRUs.

5.2.4 Power Cables of the LAMP of the BTS3812AEThis cable is used to supply power to the lamp on site.

5.2.5 Power Cables of the Heat Exchanger of the BTS3812AEThis cable transmits power to the heat exchanger.

5.2.6 Reserved DC Power Cables of the BTS3812AEThe reserved DC power cables are used to supply power for the devices which are prepared bythe operator. The maximum current is 15 A.

5.2.1 Power Cables of the Baseband Subrack/MTRUs of theBTS3812AE

The power cables of the baseband subrack/MTRU connect the DC power distribution box to thebaseband subrack and the MTRU to supply power for the two subracks.

StructureThe power cable of the BTS3812AE baseband subrack/MTRU consists of seven independentcables. One of the seven cables is connected to the baseband subrack and the remaining sixcables are connected to the six MTRUs. These independent cables have the same appearanceand structure. They are distinguished by pins short-circuited with different modules. Figure5-1 shows the structure of the power cable of the baseband subrack/MTRU.

Figure 5-1 Power cable of the baseband subrack/MTRU of the BTS3812AE

(1) 7W2 female connector (2) 3V3 connector

Pin DefinitionTable 5-2 describes the pin assignment of the power cable of the BTS3812AE baseband subrack/MTRU.

Table 5-2 Pin assignment of the power cable of BTS3812AE baseband subrack/MTRU

Wire Pins of 7W2FemaleConnector

Pins of 3V3Connector

Description

W A1 A3 Blue

A2 A1 Black







The cables have the same appearance and structure. When they are connected to differentmodules, their pins at the X1 end must be short-circuited. Table 5-3 describes the pins short-circuited.

Table 5-3 Pins short-circuited at X1 end

Modules Connected to X1 End Pins Short-Circuited at X1 End

MTRU0 Short X1.1 with X1.2–X1.5

MTRU1 Short X1.1 with X1.3–X1.5

MTRU2 Short X1.1 with X1.2, X1.4, and X1.5

MTRU3 Short X1.1 with X1.4 and X1.5

MTRU4 Short X1.1 with X1.2, X1.3, and X1.5

MTRU5 Short X1.1 with X1.3 and X1.5

Baseband subrack None of the pins is short-circuited.

Installation PositionsThe power cable of the BTS3812AE baseband subrack/MTRU consists of seven independentcables. Table 5-4 describes the installation positions.

Table 5-4 Installation positions of the power cable of BTS3812AE baseband subrack/MTRU

CableType

ConnectorType at OneEnd

Connects to… ConnectorType at theOther End

Connects to…

Cableconnectingthe DCpowerdistributionbox to thebasebandsubrack

3V3 Connector NBBU port onthe DC powerdistribtion box

7W2 femaleconnector

PWR port on theNCCU panel

Cableconnectingthe DCpowerdistributionbox toMTRU 0

3V3 Connector TRU0 port on theDC powerdistribtion box

7W2 femaleconnector

PWR port on thepanel of MTRU 0






CableType

ConnectorType at OneEnd

Connects to… ConnectorType at theOther End

Connects to…



7W2 femaleconnector




7W2 femaleconnector




7W2 femaleconnector




7W2 femaleconnector




7W2 femaleconnector


5.2.2 Power Cables of the Fans of the BTS3812AEThe power cable of the fan subrack connects the DC power distribution box to the NFAN tosupply power for the fans.

StructureFigure 5-2 shows the structure of the power cable of the BTS3812AE fan subrack.







Figure 5-2 Structure of the power cable of the BTS3812AE fan subrack

(1) DB9 female connector (2) 3V3 connector

Pin DefinitionTable 5-5 describes the pin assignment of the power cable of the BTS3812AE fan subrack.

Table 5-5 Pin assignment of the power cable of the BTS3812AE fan subrack

Wire Pin of DB9 FemaleConnector


Description

W X1.2 A3 -48 V

X1.4 A1 GND

Installation PositionsThe 3V3 connector of the the power cable connects to the port labeled FAN on the DC powerdistribution box. The DB9 female connector of the power cable connects to the port labeledPWR on the panel of the fan subrack.

5.2.3 Power Cables of the MAFUs of the BTS3812AEThe power cable of the MAFUs of the BTS3812AE connects the DC power distribution box tothe MAFUs to supply power for the MAFUs. This cable is also used to identify the mappingbetween MAFUs and MTRUs.

StructureThe power cable of the MAFUs of the BTS3812AE consists of two cables which have multiplebrach cables each. The power cable connects the DC power distribution box to the MAFUs inslots 0, 2, 4 and/or slots 1, 3, 5. A wire is divided from each connector linked to the MAFU toidentify the mapping between that MAFU and the corresponding MTRU. Figure 5-3 shows thestructure of the power cable of the MAFUs.






Figure 5-3 Structure of the power cable of the MAFUs

(1) 7W2 female connector (2) 3V3 connector (3) RJ45 connector

Pin Definition

The pin definition of the three branch cables on one cable is the same as that of the other threebranch cables on the other cable. As shown in the above figure, branch cables W1–W6 connectthe DC power distribution box to the MAFUs. W7 wire is used to indicate the relationshipbetween the MAFU and the MTRU, as shown in Table 5-6.

Table 5-6 Pin definition of the power cables W1 to W6

Wire Pins of 7W2FemaleConnector


Description

W1 X1.A1 X4.A3 Blue

W3 X2.A1 Blue

W5 X3.A1 Blue

W2 X1.A2 X4.A1 Black

W4 X2.A2 Black

W6 X3.A2 Black

Table 5-7 Pin definition of the location signal cable W7

Wire Pins of 7W2 FemaleConnector

Pins of RJ45Connector

Description

W7 X1.1 X5.4 Twisted pair

X1.2 X5.5

X1.4 X5.7 Twisted pair







Wire Pins of 7W2 FemaleConnector

Pins of RJ45Connector

Description

X1.5 X5.8

Installation PositionsThe 3V3 connector of the power cable connects to the port labeled AFU on the DC powerdistribution box. The 7W2 connectors of the power cable connects to the ports labeled PWR andCOM on the MAFUs. The RJ45 connector on each branch cable connects to the port labeledCOM on the corresponding MTRU (right below the MAFU).

5.2.4 Power Cables of the LAMP of the BTS3812AEThis cable is used to supply power to the lamp on site.

StructureFigure 5-4 shows the structure of the power cable of the lamp.

Figure 5-4 Structure of the power cable of the lamp

(1) 3V3 connector

(2) Parallel terminals

Pin DefinitionTable 5-8 describes the pin assignment of the power cable of the lamp.

Table 5-8 Pin assignment of the power cable of the lamp

Wire Pins Connectedto Lamp

Pins Connected toDC PowerDistribution Box

Wire Color

W1 X1 X2 Red

W2 X3 X5.A3 Black

W3 X4 X5.A1 Red

Installation PositionsThe power cable shall be routed in sequence along the right part of the cabinet, the top of thecabinet, and the column inside the cabinet. Then, the cable shall be connected to the DC power






cable delivered with the lamp. Note that you need to bind the cable at equal intervals using cableties.

The X5 end connects to the port labeled LAMP on the DC power distribution box.

The X1 and X3 ends connect to the DC power cable delivered with the lamp through aconnector.The X2 and X4 ends connect to the wiring posts on the front door for door control.

5.2.5 Power Cables of the Heat Exchanger of the BTS3812AEThis cable transmits power to the heat exchanger.

StructureFigure 5-5 shows the structure of the power cable of the heat exchanger.

Figure 5-5 Structure of the power cable of the heat exchanger

(1) Common connector

(2) 3V3 connector

Pin DefinitionTable 5-9 describes the pin assignment of the power cable of the BTS3812AE heat exchanger.

Table 5-9 Pin assignment of the power cable of the BTS3812AE heat exchanger

Common Connector 3V3 Connector Wire Color

X1.3 A3 Blue

X1.1 A1 Black

Installation PositionsOne end of the power cable of the heat exchanger connects to the port labeled HEX on the DCpower distribution box and the other end of the power cable connects to the DC power socketof the heat exchanger. The power cable of the BTS3812AE heat exchanger is routed in sequenceto the cabinet top, left part of the cabinet, heat exchanger on the front cabinet door, and then theheat exchanger. Note that you need to bind the cable by using cable ties.

5.2.6 Reserved DC Power Cables of the BTS3812AEThe reserved DC power cables are used to supply power for the devices which are prepared bythe operator. The maximum current is 15 A.







StructureFigure 5-6 shows the structure of the reserved DC power cables.

Figure 5-6 Structure of the reserved DC power cables

(1) 3V3 connector

Pin DefinitionTable 5-10 describes the pin assignment of the reserved DC power cable.

Table 5-10 Pin assignment of the reserved DC power cable

Pins of 3V3 Connector Wire Color

A1 Black

A3 Blue

Installation PositionsThe connector at one end of the reserved DC power cable connects to the port labeled SPACEon the DC power distribution box. The other end of the cable is fitted with two heat-shrinkabletubes and bound to the column of the cabinet.

5.3 Transmission Cables of the BTS3812E/BTS3812AETransmission cables of the BTS3812AE consist of the E1/T1 cable, optical cable, E1 signaltransfer cable, and Ethernet cable.

5.3.1 E1/T1 Cable of the BTS3812AEThe E1/T1 cables of the BTS3812AE are of the following types: the 75-ohm E1 cable, 120-ohmE1 cable, and 100-ohm T1 cable. The E1/T1 cable is used for E1/T1 signal transmission andelectrical connection on the Iub interface.

5.3.2 Optical Cable of the BTS3812AEThe optical cable is used for the optical signal transmission to realize the optical connectionbetween the BTS3812AE and other devices. The BTS3812AE uses the single-mode optical cablefor trunk transmission over long distance.

5.3.3 Ethernet Cable of the BTS3812AE






The Ethernet cables are of two types: the straight-through cable and the crossover cable. Theyare used to transmit maintenance signals or Iub traffic signals.

5.3.4 E1 Signal Transfer Cable of the BTS3812AEThe E1 signal transfer cable of the BTS3812AE is used to transfer E1 signals within theBTS3812AE.

5.3.1 E1/T1 Cable of the BTS3812AEThe E1/T1 cables of the BTS3812AE are of the following types: the 75-ohm E1 cable, 120-ohmE1 cable, and 100-ohm T1 cable. The E1/T1 cable is used for E1/T1 signal transmission andelectrical connection on the Iub interface.

StructureThe 75-ohm E1 cable is a coaxial cable. The cable consists of eight micro coaxial wires andevery two micro coaxial wires constitute one E1 path. Therefore, each 75-ohm E1 cable providesfour E1 paths. One end of the 75-ohm E1 cable is a DB25 male connector, and the other end isbare, as shown in Figure 5-7.

Figure 5-7 Structure of the 75-ohm E1 cable

(1) DB25 male connector (X0)

(2) 75-ohm E1 coaxial wire (X1–X8)

(3) Coaxial cable core (tip)

(4) Coaxial cable external conductor (ring, that is, the shielding layer)

The 120-ohm E1 twisted pair cable consists of four pairs of 120-ohm twisted pair wires. Eachpair of twisted pair wires constitutes one E1 path. Therefore, each 120-ohm E1 cable providesfour E1 paths. One end of the 120-ohm E1 cable is a DB25 male connector, and the other endis bare, as shown in Figure 5-8.







Figure 5-8 Structure of the 120-ohm E1 cable

(1) DB25 male connector (X0)

(2) 120-ohm E1 twisted pair wire (X1–X8)

(3) Label

The number of E1 cables depends on that of NUTIs/NDTIs configured in the NodeB. Each NDTIcan be configured with two E1 cables. Each NUTI without the E1 sub-board can be configuredwith two E1 cables and each NUTI with the E1 sub-board can be configured with four E1 cables.

Pin DefinitionTable 5-11 describes the pin assignment of the E1/T1 cable.

Table 5-11 Pin assignment of the E1/T1 cable

Coaxial Wire Tip/Ring of theE1 Coaxial Wire

Pin of the DB25Connector

Label on the E1 Cable

W1 X1.tip X0.24 CHAN 0 TX

X1.ring X0.25

W2 X2.tip X0.13 CHAN 0 RX

X2.ring X0.12


X3.ring X0.10


X4.ring X0.8






Coaxial Wire Tip/Ring of theE1 Coaxial Wire


Label on the E1 Cable


X5.ring X0.6


X6.ring X0.4


X7.ring X0.2


X8.ring X0.15

Installation PositionsInstallation positions of the E1 cables are as follows:

One end of the DB25 male connector is fixed to the J1/J2 port on the BESP in thetransmission surge protection subrack.The bare wire at the other end is fixed to the transmission device such as the outdoortransmission interface box.

For details about the connection between the E1 cable and the BESP, refer to 4.2 BESP Board.

The external E1/T1 cable corresponding to the E1 sub-board on the NUTI can be optionallyselected.

The DB25 connector is fixed to the J1/J2 port on the BESP in the transmission surgeprotection subrack of the BTS3812AE cabinet.The bare wire at the other end is fixed to the transmission device such as the indoortransmission interface box.

5.3.2 Optical Cable of the BTS3812AEThe optical cable is used for the optical signal transmission to realize the optical connectionbetween the BTS3812AE and other devices. The BTS3812AE uses the single-mode optical cablefor trunk transmission over long distance.

StructureBoth ends of the optical cable are LC connectors. Figure 5-9 shows the structure of the LCconnector.







Figure 5-9 Structure of the LC connector

(1) Optical cable (2) LC connector

The optical cable shown in Figure 5-9 is a multi-mode one. The single-mode optical cable and the multi-mode optical cable appear the same except that the coating of the single-mode optical cable is yellow whilethe coating of the multi-mode optical cable is orange.

Installation PositionsOne end of the transmission trunk optical cable connects to the port labeled OPT0/OPT1/OPT2on the panel of the HBOI or to the optical port on the optical sub-board of the NUTI. The otherend connects to the transmission interface box.

5.3.3 Ethernet Cable of the BTS3812AEThe Ethernet cables are of two types: the straight-through cable and the crossover cable. Theyare used to transmit maintenance signals or Iub traffic signals.

FunctionsThe Ethernet cables are of two types: the straight-through cable and the crossover cable. Theyare used to transmit maintenance signals or Iub traffic signals.

When the cables are used to transmit maintenance signals,

The straight-through cable connects the NodeB or the LMT PC to the network.The crossover cable connects the LMT PC to the NodeB.

When the cables are used to transmit Iub traffic signals, one end of the cables connects the FEport on the NUTI and the other end connects the transmission device or the RNC.

The NUTI is self-adaptive to the straight-through cable and the crossover cable.

StructureBoth ends of the straight-through/crossover cable are RJ45 connectors. The only difference liesin pin assignment. Figure 5-10 shows the straight-through cable and the crossover cable.

Figure 5-10 Structure of the Ethernet cable






Pin DefinitionTable 5-12 describes the pin assignment of the Ethernet cable.

Table 5-12 Pin assignment of the Ethernet cable

Pins ofRJ45Connector

Wire Color Wire Type X2 End ofStraight-Through Cable

X2 End ofCrossover Cable

X1.2 Orange Twisted pair X2.2 X2.6

X1.1 White/Orange X2.1 X2.3

X1.6 Green Twisted pair X2.6 X2.2

X1.3 White/Green X2.3 X2.1

X1.4 Blue Twisted pair X2.4 X2.4

X1.5 White/Blue X2.5 X2.5

X1.8 Brown Twisted pair X2.8 X2.8

X1.7 White/Brown X2.7 X2.7

Installation PositionsIf the Ethernet cable is used to transfer maintenance signals, the installation positions are asfollows:

The straight-through cable connects the NodeB or the LMT PC to the network. Typically,one end of the cable connects to the port labeled ETH on the NMPT panel, and the otherend connects to a hub. Or one end connects to the Ethernet port on the LMT PC and theother end connects to a hub.The crossover cable connects the port labeled ETH on the NMPT panel to the Ethernet porton the LMT PC.

If the Ethernet cable is used to transfer Iub traffic signals, the installation positions are as follows:One end of the cable connects to the FE port on the NUTI.

The other end connects to a transmission device or the RNC.

5.3.4 E1 Signal Transfer Cable of the BTS3812AEThe E1 signal transfer cable of the BTS3812AE is used to transfer E1 signals within theBTS3812AE.

FunctionsThe E1 signal transfer cable of the BTS3812AE is used to transfer E1 signals within theBTS3812AE. The E1 signal transfer cables of the BTS3812AE are of the following two types:

The E1 signal transfer cable connecting the NCCU to the BESP The E1 signal transfercable of this type consists of 2 cables and each cable carries eight E1s. Therefore, the E1signal tranfer cable of this type carries 16 E1s in total. Among the 16 E1s, eight are used







to transfer the E1 signals of the NCCU and the BESP, and the other eight are used to connectthe new BESPs added during the capacity expansion.

The E1 signal transfer cable connecting the E1 sub-board on the NUTI to the BESP OneE1 signal transfer cable carries eight E1s.

Structure

Figure 5-11 shows the structure of the E1 signal transfer cable that connects the NCCU to theBESP.

Figure 5-11 Structure of the E1 signal transfer cable connecting the NCCU to the BESP

(1) DB78 male connector (2) DB37 female connector

Figure 5-12 shows the structure of the E1 signal transfer cable that connects the E1 sub-boardon the NUTI to the BESP.

Figure 5-12 Structure of the E1 signal transfer cable connecting the E1 sub-board on the NUTIto the BESP

(1) DB44 male connector (2) DB37 female connector






Pin DefinitionW1, one of the two cables constituting the E1 signal transfer cable that connects the NCCU tothe BESP, is labeled E1 (0–7). Table 5-13 describes the pin assignment of W1.

Table 5-13 Pin assignment of W1

Pin of DB78 Connector at X1End

Wire Type Pin of DB37 Connector at X2End

X1.32 Twisted pair X2.35

X1.71 X2.17


X1.52 X2.16


X1.72 X2.15


X1.53 X2.14


X1.73 X2.13


X1.54 X2.12


X1.74 X2.11


X1.55 X2.10


X1.75 X2.9


X1.56 X2.8


X1.76 X2.7


X1.57 X2.6


X1.77 X2.5










X1.58 X2.4


X1.78 X2.3


X1.59 X2.2

W2, the other cable constituting the E1 signal transfer cable that connects the NCCU to theBESP, is labeled E1 (8–15). Table 5-14 describes the pin assignment of W2.


Pin of DB78 Male Connector Wire Type Pin of DB37 FemaleConnector


X1.43 X3.17


X1.63 X3.16


X1.44 X3.15


X1.64 X3.14


X1.45 X3.13


X1.65 X3.12


X1.46 X3.11


X1.66 X3.10


X1.47 X3.9








X1.67 X3.8


X1.48 X3.7


X1.68 X3.6


X1.49 X3.5


X1.69 X3.4


X1.50 X3.3


X1.70 X3.2

Table 5-15 describes the pin assignment of the E1 signal transfer cable that connects the E1 sub-board on the NUTI to the BESP.

Table 5-15 Pin assignment of the E1 signal transfer cable connecting the E1 sub-board on theNUTI to the BESP




X1.15 X2.22


X1.38 X2.23


X1.14 X2.24


X1.37 X2.25


X1.13 X2.26










X1.36 X2.27


X1.12 X2.28


X1.35 X2.29


X1.11 X2.30


X1.34 X2.31


X1.10 X2.32


X1.33 X2.33


X1.9 X2.34


X1.32 X2.35


X1.8 X2.36


X1.31 X2.37

Installation PositionsThe DB78 male connector at one end of the E1 signal transfer cable that connects the NCCU tothe BESP is fixed to the E1/T1 port on the panel of the NCCU. The other end is connectedaccording to the label.

The DB37 female connector labeled E1 (0–7) connects to the connector labeled J3 on theBESP in the transmission surge protector subrack.The DB37 female connector labeled E1 (8–15) is reserved to connect to the connectorlabeled J3 on the new BESP added in later capacity expansion.

The DB44 male connector at one end of the E1 signal transfer cable that connects the E1 sub-board on the NUTI to the BESP is fixed to the DB44 female connector on the E1 sub-board. The






The BTS3812A door control sensor cable is used to connect the door control sensor to the NPMI.It enables the NPMI to monitor the state of the door.

5.4.13 Smoke Sensor Cable of the BTS3812AEThe smoke sensor cable is used to connect the smoke sensor to the NPMI which is installed inthe up left cabinet. It enables the NPMI to monitor smoke in the ambient environment.

5.4.14 Water Sensor Cable of the BTS3812AEThe water sensor cable is used to connect the water sensor to the NPMI. It enables the NPMI tomonitor water immersion in the ambient environment.

5.4.1 BBUS Signal Cable of the BTS3812AEThe BBUS signal cable is used to connect the HBBI to the MTRU. One BBUS signal cable canbe connected to three MTRUs: MTRU 0, MTRU 2, and MTRU 4, or MTRU 1, MTRU 3, andMTRU 5.

StructureFigure 5-13 shows the structure of the BBUS signal cable.

Figure 5-13 Structure of the BBUS signal cable

(1) MDR36 male connector (2) MDR14 male connector

Pin DefinitionThe W1 cable shown in Figure 5-13 is labeled TRU0/1. Table 5-16 describes the pin assignmentof W1.







Pin of MDR36Connector at X1End

Wire Type Pin of MDR14 Connector atX2 End

Description

X1.1 Twisted pair X2.13 Core wire

X1.2 X2.14

X1.3 X2.12 Groundingwire


X1.22 X2.10



X1.14 X2.3


The W2 cable shown in Figure 5-13 is labeled TRU2/3. Table 5-17 describes the pin assignmentof W2.


Pin of MDR36Connector at X1 End

Wire Type Pin of MDR14 Connectorat X2 End

Description


X1.6 X3.14



X1.26 X3.10



X1.18 X3.3


The W3 cable shown in Figure 5-13 is labeled TRU4/5. Table 5-18 describes the pin assignmentof W3.








Pin of MDR36Connector at X1End

Wire Type Pin of MDR14Connector at X2End

Description


X1.10 X4.14

X1.11 X4.12 Grounding wire


X1.30 X4.10



X1.36 X4.3


Installation PositionsTable 5-19 lists the installation positions of the BBUS signal cable.

Table 5-19 Installation positions of the BBUS signal cable

Cable Connector Connects to… Remarks

MDR36, male Port CPRIA or port CPRIB onthe HBBI

Huawei suggest that portCPRIA shall correspond toMTRUs numbered 4, 2, 0 andport CPRIB shall correspondto MTRUs numbered 5, 3, 1.






Cable Connector Connects to… Remarks

MDR14, male Port BBIF0 or port BBIF1 onthe MTRU

Port BBIF0 and port BBIF1are the backup ports for eachother. Huawei recommendsthat you connect all the BBUScables led from one HBBI toports BBIF0 and that youconnect all the BBUS cablesled from the other HBBI toports BBIF1.

The MDR14 maleconnector labeled TRU0/1connects to port BBIF0 onMTRU 0 or to port BBIF1on MTRU 1.The MDR14 maleconnector labeled TRU2/3connects to port BBIF0 onMTRU 2 or to port BBIF1on MTRU 3.The MDR14 maleconnector labeled TRU4/5connects to port BBIF0 onMTRU 4 or to port BBIF1on MTRU 5.

Table 5-20 describes the connection of the BBUS signal cable in different configurations.

The following description is based on the HBBI. Methods of installing the HBBI and the NBBI are thesame.

Table 5-20 The following part describes connection of the BBUS signal cable in differentconfigurations:

Configuration of theMTRU and the HBBI

Quantity of the BBUSSignal Cables

Connection of the BBUSSignal Cable

Three MTRUs, one HBBI Two Figure 5-14 shows theconnections of the BBUSsignal cables.

Port CPRIA on the HBBIin slot 0 is connected toport BBIF0 on MTRU 0,MTRU 2, or MTRU 4.The other BBUS signalcable is bound on thecabinet. That cable cannotbe connected to themodule.







Configuration of theMTRU and the HBBI

Quantity of the BBUSSignal Cables

Connection of the BBUSSignal Cable

Three MTRUs, two HBBIs Two Figure 5-15 shows theconnections of the BBUSsignal cables.

Port CPRIA on the HBBIin slot 0 is connected toport BBIF0 on MTRU 0,MTRU 2, or MTRU 4.Port CPRIA on the HBBIin slot 1 is connected toport BBIF1 on MTRU 0,MTRU 2, or MTRU 4.

Six MTRUs, two HBBIs Four Figure 5-16 shows theconnections of the BBUSsignal cables.

Port CPRIA on the HBBIin slot 0 is connected toport BBIF0 on MTRU 0,MTRU 2, or MTRU 4.Port CPRIB on the HBBIin slot 0 is connected toport BBIF0 on MTRU 1,MTRU 3, or MTRU 5.Port CPRIA on the HBBIin slot 1 is connected toport BBIF1 on MTRU 0,MTRU 2, or MTRU 4.Port CPRIB on the HBBIin slot 1 is connected toport BBIF1 on MTRU 1,MTRU 3, or MTRU 5.






Figure 5-14 Connections of BBUS signal cables - 1









5.4.2 GPS Clock Signal Cable of the BTS3812AEThe GPS clock signal cable is used to transfer the external GPS signals to the NMPT in thecabinet.

Structure

Figure 5-17 shows the structure of the GPS clock signal cable. The GPS clock cable actuallyconsists of two independent wires bound with cable ties.

Figure 5-17 Structure of the GPS clock signal cable

(1) SMA male connector (2) N-type female connector


The GPS clock signal cable consists of two independent cables. The two cables connect to thecorresponding ports on the NMPTs in different slots.

The SMA male connector labeled GPS_0 at one end connects to the port labeled GPS onthe panel of the NMPT in slot 10. The N-type female connector at the other end connectsto the port labeled protect on GPS surge protector 1 on the bottom of the cabinet.






The SMA male connector labeled GPS_1 at one end connects to the port labeled GPS onthe panel of the NMPT in slot 11. The N-type female connector at the other end connectsto the port labeled protect on GPS surge protector 2 on the bottom of the cabinet.

5.4.3 Boolean Transfer Cable of the BTS3812AEThe Boolean signal transfer cable of the BTS3812AE transfers the Boolean inputs and outputsreceived by the DCSP to the NMON.

Structure

Figure 5-18 shows the Boolean transfer cable.

Figure 5-18 Boolean transfer cable






X1.5 X2.15


X1.26 X2.32


X1.43 X2.12


X1.4 X2.11


X1.23 X2.9


X1.40 X2.26


X1.61 X2.6


X1.22 X2.5


X1.1 X2.22

X1.2 A single wire X2.3

Table 5-22 describes the pin assignment of W2.




X1.75 X3.36


X1.49 X3.16


X1.10 X3.15








X1.36 X3.32


X1.48 X3.12


X1.9 X3.11


X1.70 X3.28


X1.47 X3.8

X1.50 Twisted pair X326

X1.8 X3.7


X1.31 X3.24


X1.46 X3.4


X1.7 X3.3

Table 5-23 describes the pin assignment of W3.




X1.51 X4.13


X1.71 X4.11


X1.52 X4.9









X1.72 X4.8


X1.53 X4.6


X1.73 X4.5


X1.54 X4.3


X1.74 X4.1




Figure 5-19 Structure of the Boolean output cable

(1) DB25 male connector (2) Bare wire

Pin DefinitionTable 5-24 shows the pin assignment of the Boolean output cable.

Table 5-24 Pin assignment of the Boolean output cable


Wire Type Wire Color Alarm Output No.

X1.1 Paired wires White Reserved

X1.14 Blue

X1.3 Paired wires White 6

X1.16 Orange


X1.17 Green


X1.19 Brown


X1.20 Gray

X1.9 Paired wires Red 2

X1.22 Blue


X1.23 Orange


X1.25 Green







Installation PositionsThe DB25 male connector at one end of the BTS3812AE Boolean output cable is linkedto the DB25 female connector on the W3 wire of the Boolean transfer cable.Paired wires at the other end connect to the control device.

5.4.5 Boolean Input Cable of the BTS3812AEThe Boolean input cable transmits signals of the operation state of external devices to the NodeB.Therefore, the NodeB can control the external devices through the Boolean input cable. A singleBoolean input cable provides eight Boolean inputs. One BTS3812AE Boolean input cableprovides up to 32 Boolean inputs.

StructureFigure 5-20 shows the Boolean input cable.

Figure 5-20 Structure of the Boolean input cable of the BTS3812AE

(1) DB25 male connector (2) Bare wire

Pin DefinitionTable 5-25 shows the pin assignment of the BTS3812AE Boolean input cable.






Table 5-25 Pin assignment of the BTS3812AE Boolean input cable


Wire WireType

Color of BareWire

Alarm Input No.

X0.24 W1 Pairedwires

White 0, 8, 16, or 24

X0.25 Blue


White 1, 9, 17, or 25

X0.12 Orange


White 2, 10, 18, or 26

X0.10 Green

X0.9 W4 Pairedwires

White 3, 11, 19, or 27

X0.8 Brown

X0.7 W5 Pairedwires

White 4, 12, 20, or 28

X0.6 Gray

X0.5 W6 Pairedwires

Red 5, 13, 21, or 29

X0.4 Blue

X0.3 W7 Pairedwires

Red 6, 14, 22, or 30

X0.2 Orange


Red 7, 15, 23, or 31

X0.15 Green

Installation PositionsThe DB25 male connector connects to connector J1 or connector J2 on the DCSP and the barewires connect to corresponding control devices. Table 5-26 describes the installation positionsof the Boolean input cable.

Table 5-26 Installation positions of the BTS3812AE Boolean input cable

Label on theBoolean InputCable

Connects to… Label on the BooleanSignal TransferCable




Label on theBoolean InputCable

Connects to… Label on the BooleanSignal TransferCable





Pin of MCX MaleConnector

Core wire Label

X1.10 X3.Shell

X1.4 X4.Center W3 MAFU2

X1.11 X4.Shell


X1.12 X5.Shell


X1.13 X6.Shell


X1.14 X7.Shell

Installation PositionsTable 5-28 shows the connection of the RET control signal cable.

Table 5-28 Connection of the RET control signal cable

Connector Type Label Connects to…

DB15, male - Port RET on the panel of theNMON

MCX male connector MAFU0 Port RET on the MAFU0






5.4.7 Serial Cable of the BTS3812AEThe serial cable connects the NodeB to the LMT PC for the communication between the NodeBand the LMT.

StructureOne end of the serial cable is a DB9 male connector and the other end is an RJ45 connector, asshown in Figure 5-22.







Figure 5-22 Structure of the serial cable

(1) DB9 male connector (2) RJ45 connector

Pin DefinitionTable 5-29 describes the pin assignment of the serial cable.

Table 5-29 Pin assignment of the serial cable

Pin of DB9 Male Connector Pins of RJ45 Connector

X1.2 X2.3

X1.3 X2.6

X1.5 X2.5

X1. shielding layer X2. shielding layer

Installation PositionsThe DB9 male connector connects to the serial port on the LMT PC and the RJ45 connectorconnects to the port labeled COM on the panel of the NMPT.

5.4.8 PMU Monitoring Cable of the BTS3812AEThe PMU monitoring cable is used to transmit the sensor signals. All the sensor signals receivedby the NPMI which is installed in the up left cabinet are transmitted to the PMU for processing.

StructureFigure 5-23 shows the structure of the PMU monitoring cable.






Figure 5-23 Structure of the PMU monitoring cable

(1) DB50 male connector (2) DB50 male connector

Pin DefinitionThe two DB50 male connectors on cable W as shown in Figure 5-23 connect to the DB50 femaleconnectors on the NPMI and on the PMU. Table 5-30 describes the pin assignment of the PMUmonitoring cable.

Table 5-30 Pin assignment of the PMU monitoring cable

Pin of the DB50Male Connector


Wire Color Wire Type

X1.1 X2.1 White Twisted pair

X1.2 X2.2 Blue


X1.4 X2.4 Orange


X1.8 X2.8 Green


X1.10 X2.10 Brown


X1.12 X2.12 Gray

X1.13 X2.13 Red Twisted pair

X1.14 X2.14 Blue


X1.17 X2.17 Orange


X1.19 X2.19 Green









Wire Color Wire Type


X1.21 X2.21 Brown


X1.23 X2.23 Gray

X1.24 X2.24 Black Twisted pair

X1.25 X2.25 Blue


X1.28 X2.28 Orange


X1.30 X2.30 Green


X1.32 X2.32 Brown


X1.34 X2.34 Gray

X1.43 X2.43 Yellow Twisted pair

X1.44 X2.44 Blue

Installation PositionsThe DB50 male connector at the end labeled PMU connects to the DB50 female connector onthe PMU in the power subrack.

The DB50 male connector at the end labeled NPMI connects to the DB50 female connector onthe NPMI in up left cabinet.

5.4.9 Signal Cable of Monitoring the MCB for the BTS3812AEBatteries

The signal cable of monitoring the MCB is used to connect the MCB of the battery to the NPMI.It enables the NPMI to monitor the battery voltage. An alarm will be reported in the case ofovervoltage.

StructureFigure 5-24 shows the structure of the signal cable of monitoring the MCB.






Figure 5-24 Structure of the signal cable of monitoring the MCB

(1) 2-pin female connector (2) OT terminal

Installation PositionsThe 2-pin femaile connector at one end of the signal cable of monitoring the MCB is led intothe cabinet along the cabinet column and then connects the port labeled FU_ALM on the NPMIwhich is installed in the up left cabinet. The OT terminal at the other end of the cable connectsto the MCB of the battery.

5.4.10 AC Surge Protector Alarm Cable of the BTS3812AEThe AC surge protector alarm cable is used to connect the AC surge protector to the NPMI. Itenables the NPMI to monitor the state of the AC surge protector.

StructureFigure 5-25 shows the structure of the AC surge protector alarm cable.

Figure 5-25 Structure of the AC surge protector alarm cable

(1) 4-pin connector (2) Common connector

Installation PositionsThe 4-pin connector at one end of the AC surge protector alarm cable connects is led into thecabinet along the cabinet column and then connects to the port labeled JD3 on the NPMI whichis installed in the up left cabinet. The common connector at the other end of the cable connectsto the AC surge protector.







5.4.11 Humidity and Temperature Sensor Cable of the BTS3812AEThe humidity and temperature sensor cable is used to connect the humidity and temperaturesensor to the NPMI. It enables the NPMI to monitor the humidity and temperature in theBTS3812AE cabinet.

Structure

Figure 5-26 shows the structure of the humidity and temperature sensor cable.

Figure 5-26 Structure of the humidity and temperature sensor cable

(1) 4-pin connector (2) Cold-pressed terminal

Pin Definition

Table 5-31 describes pin assignment of the humidity and temperature sensor cable.

Table 5-31 Pin assignment of the humidity and temperature sensor cable

Pin of 4-Pin Connector Cold-pressed terminal

X1.1 X2

X1.2 X3

X1.3 X4

X1.4 X5


The 4-pin connector at one end of the humidity and temperature sensor cable is led into thecabinet along the cabinet column and then connects to the port labeled TEM_HUM on the NPMIwhich is installed in the up left cabinet. The cold-pressed connector at the other end connects tothe humidity and temperature sensor.






5.4.12 Door Control Sensor Cable of the BTS3812AEThe BTS3812A door control sensor cable is used to connect the door control sensor to the NPMI.It enables the NPMI to monitor the state of the door.

StructureFigure 5-27 shows the structure of the door control sensor cable.

Figure 5-27 Structure of the door control sensor cable

(1) Parallel terminal 250

(2) Heat-shrinkable tube

(3) 2-pin connector

(4) 4-pin connector

(5) Short-circuiting cable

Pin DefinitionTable 5-32 describes the pin assignment of the door control sensor cable.

Table 5-32 Pin assignment of the door control sensor cable

Pin of Parallel Terminal 250 Pin of 2-Pin Connector

X1 X3.1

X2 X3.2

Installation PositionsThe 2-pin connector at one end of the door control sensor cable is led into the cabinet along thecabinet column and then connects to the port labeled DOOR on the NPMI which is installed inthe upleft cabinet. Among the parallel terminals at the other end of the cable, the X1 and X2ends connect to the tact switch on the front door and the X4 and X5 ends connect to the tactswitch on the back door. The X6 end is reserved for cascaded connection of door control signalsof the neighboring combined cabinets.







5.4.13 Smoke Sensor Cable of the BTS3812AEThe smoke sensor cable is used to connect the smoke sensor to the NPMI which is installed inthe up left cabinet. It enables the NPMI to monitor smoke in the ambient environment.

StructureFigure 5-28 shows the structure of the smoke sensor cable.

Figure 5-28 Structure of the smoke sensor cable

(1) 2-pin connector (2) Cold-pressed terminal

Installation PositionsThe 2-pin connector at one end of the smoke sensor cable is led into the cabinet along the topof the cabinet and then connects to the port labeled SMOKE on the NPMI which is installed inthe up left cabinet. The cold-pressed connector at the other end connects to the smoke sensor.

5.4.14 Water Sensor Cable of the BTS3812AEThe water sensor cable is used to connect the water sensor to the NPMI. It enables the NPMI tomonitor water immersion in the ambient environment.

StructureFigure 5-29 shows the structure of the water sensor cable.

Figure 5-29 Structure of the water sensor cable

(1) Water sensor






Installation PositionsThe water sensor cable is led into the cabinet from the front of the cabinet. The connector atview A end on the water sensor cable connects to the port labeled WATER on the NPMI whichis installed in the up left cabinet. The other end is already fixed to the water sensor.

5.5 RF Cables of the BTS3812AERF cables of the BTS3812AE consist of RF jumpers and MTRU-MAFU RF cables.

5.5.1 MTRU-MAFU RF Cable of the BTS3812AEThe MTRU-MAFU RF cables are of two types: the RF RX signal cable and the RF TX signalcable. The RF RX signal cable connects the RX port on the MAFU to the RX port on the MTRUand transmits UL signals. The RF TX signal cable connects the TX port on the MAFU to theTX port on the MTRU and transmits DL signals.

5.5.2 RF Jumper of the BTS3812AEThe RF jumper connects the antenna connector to the antenna system. It enables the RF jumperto transmit signals between the NodeB and the antenna system.

5.5.1 MTRU-MAFU RF Cable of the BTS3812AEThe MTRU-MAFU RF cables are of two types: the RF RX signal cable and the RF TX signalcable. The RF RX signal cable connects the RX port on the MAFU to the RX port on the MTRUand transmits UL signals. The RF TX signal cable connects the TX port on the MAFU to theTX port on the MTRU and transmits DL signals.

StructureFigure 5-30 shows the MTRU-MAFU RF cable.

Figure 5-30 MTRU-MAFU RF cable

(1) SMA elbow male connector (2) N-type elbow male connector

Installation PositionsThe RF RX signal cable and the RF TX signal cable of the MAFU shall be connected to theMTRU to which the port labeled COM on the MAFU is connected.







One end of the RF RX signal cable connects the RX port on the MTRU and the other endconnects to the RX port on the corresponding MAFU.The RF TX signal cable connects the TX port on the MTRU to the TX port on thecorresponding MAFU.

Connection of the RF RX signal cable depends on the configuration of the NodeB. If the configurationvaries, the type of the RX port to which the RX signal cable is connected varies accordingly.

Wiring Between RF Ports on MTRUs and MAFUsWiring between RF ports on MTRUs and MAFUs depends on the NodeB configuration.In each configuration, the number of MTRUs is the same as that of MAFUs. Huaweirecommends that you connect an MAFU to the MTRU below that MAFU.Wiring between RF ports on the MTRU and the MAFU in 2-way RX and 3 to 4 carriersIn 2-way RX and 3 to 4 carriers, two MTRUs and two MAFUs correspond to one sector.Each sector can bear three to four adjacent carriers. In this situation, connectors labeledANT_TX/RXA at the top of MAFUs are connected to the antenna while connectors labeledANT_RXB are not in use. TX diversity is not supported in this configuration.

The NodeB configuration in 2-way RX and 3 to 4 carriers is also applicable to that in 2-way RX and1 to 2 carriers. In this situation, compared with the configuration in 2-way RX and 1 to 2 carriers,the application of 2-way RX and 3 to 4 carriers used for 1 to 2 carriers has larger transmit power andsupports TX diversity.

Figure 5-31 shows the wiring between RF ports in one sector. The sector is configured in2-way RX and 3 to 4 carriers.

Figure 5-31 Wiring between RF ports on MTRUs and MAFUs in 2-way RX and 3 to 4carriers

Wiring between RF ports on the MTRU and the MAFU in 2-way RX and 1 to 2 carriersIn 2-way RX and 1 to 2 carriers, one MTRU and one MAFU correspond to one sector. Eachsector can bear two adjacent carriers. In this situation, connectors labeled ANT_TX/RXAand ANT_RXB at the top of the MAFU are linked to the antenna. TX diversity is notsupported in this configuration.






Figure 5-32 shows the wiring between RF ports in one sector. The sector is configured in2-way RX and 1 to 2 carriers.


Wiring between RF ports on MTRUs and MAFUs in 4-way RX and 1 to 2 carriersIn 4-way RX and 1 to 2 carriers, two MTRUs and two MAFUs correspond to one sector.Each sector can bear two adjacent carriers. In this situation, connectors labeled ANT_TX/RXA and ANT_RXB at the top of the MAFU are linked to the antenna. TX diversity issupported in this configuration.Figure 5-33 shows the wiring between RF ports in one sector. The sector is configured in4-way RX and 1 to 2 carriers.








In the previous three configurations, matched loads must be installed on ports or connectors not in use onthe MAFUs. This can avoid power leakage.

5.5.2 RF Jumper of the BTS3812AEThe RF jumper connects the antenna connector to the antenna system. It enables the RF jumperto transmit signals between the NodeB and the antenna system.

StructureBoth end of the RF jumper are DIN male connector, as shown in Figure 5-34.

Figure 5-34 Structure of the RF jumper

(1) DIN, male connector

Installation PositionsThe DIN male connector at one end of the BTS3812AE RF jumper connects to the antennaconnector at the top of the MAFU. The other end of the BTS3812AE RF jumper is led out ofthe cabinet from the bottom of the cabinet and then connects to the jumper.

The antenna connectors at the top of the MAFU are labeled ANT_TX/RXA and ANT_RXB. The portlabeled ANT_TX/RXA supports the signal reception and transmission while the port labeled ANT_RXBsupports only the signal reception. The NodeB configurations determine which antenna connector to use.

5.6 Built-in Battery Cables of the BTS3812AEBuilt-in battery cables consist of the GND cable, -48 V power cable, inter-battery cable, andbuilt-in battery temperature sensor cable. The inter-battery cable connects each battery in series.In this way, the built-in batteries form a power system. The built-in battery temperature sensorcable connects the NPMI with the battery cabin. This enables the NPMI to monitor thetemperature in the battery cabin.

Structure

The GND cable is red with the cross-sectional area of 25 mm2, as shown in Figure 5-35.






Figure 5-35 Structure of the GND cable

(1) OT terminal (2) Heat-shrinkable tube (3) OT terminal

The -48 V power cable is black with the cross-sectional area of 25 mm2, as shown in Figure5-36.

Figure 5-36 Structure of the -48 V power cable

(1) OT terminal (2) Heat-shrinkable tube (3) OT terminal

The inter-battery cable is the cable connecting each battery.

Figure 5-37 shows the structure of the built-in battery temperature sensor cable.

Figure 5-37 Structure of the built-in battery temperature sensor cable

(1) OT terminal (2) 2-pin connector

Installation PositionsInstallation positions of the built-in battery cables are as follows:

One end of the GND cable is pre-installed in the battery cabin and will be connected to thepositive pole on the battery.The other end of the GND cable is already connected to the RTN port on the PSU.

One end of the -48 V power cable is pre-installed in the battery cabin and will be connectedto the negative pole on the battery.The other end of the -48 V power cable is connected to the MCB of the battery.

One OT terminal of the inter-battery cable is connected to the positive pole on the battery.

The other OT terminal of the inter-battery cable is connected to the negative pole on thebattery.The OT terminal at one end of the built-in battery temperature sensor cable is connectedto the outer-side wiring terminal on the left of the battery.







The 2-pin connector at the other end of the built-in battery temperature sensor cable routedalong the cable trough on the left of the cabinet and then is connected to the port labeledBAT_TEM1 on the NPMI which is installed in the up left cabinet.






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