Download - Motorola BTS Training (1)
![Page 1: Motorola BTS Training (1)](https://reader033.vdocuments.net/reader033/viewer/2022050706/544eb9eeb1af9f27638b504b/html5/thumbnails/1.jpg)
Objectives
State the functional areas of the Horizon II macro cabinet.
• Describe the functions and operation of the Horizon II macro Digital modules.
• Describe the cabinet RF Components.
By the end of this chapter the student will be able to :-
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Basic Block Diagram of Cabinet
Three Main Functional areas:
1. Digital Cards
2. Radios (CTU2)
3. RF equipment
RF interface to Antenna( Transmit - Combining and filtering)
(Receive – Amplification and filtering)
CTU2 CTU2 CTU2 CTU2 CTU2 CTU2
E1 Link Digital Cage == Controls the cabinet Alarms Power Supplies
Antenna
![Page 3: Motorola BTS Training (1)](https://reader033.vdocuments.net/reader033/viewer/2022050706/544eb9eeb1af9f27638b504b/html5/thumbnails/3.jpg)
• Support of 6x double density CTU2 Single or Double carrier per Radio.
• Horizon II Site Controller (HIISC) – Integrated NIU Integrated FMUX– E1 support Enhanced E1 Redundancy– Increased Capacity/removable flash media– Increased RSL functionality
• Expansion of Horizon II macro cabinets to support 24 carriers per BTS site.
Horizon II Expansion Multiplexer (XMUX)Site Input/Output (I/O) Panel
• Interoperability with current M-Cell and HORIZON macro products
The Horizon II macro BTS hardware supports the following functionality:
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Site Controller (HIISC)
CTU2Cooling
Fans
Power Supply Units (PSU)
Circuit Breaker
Card (CBC)
Alarm Board
HORIZON II macro Cabinet Front View
![Page 5: Motorola BTS Training (1)](https://reader033.vdocuments.net/reader033/viewer/2022050706/544eb9eeb1af9f27638b504b/html5/thumbnails/5.jpg)
Site I/O Panel
Tx Blocks
Link Interface
Board
SURF2
Power Supply
EAS Alarm, PIX 0 & 1
HORIZON II macro Cabinet Top View
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Cabinet Power Supply
Maximum 4x PSU per cabinet – One for Redundancy
Depends on the number of Radios fitted.
The Cabinet can support the three types of power supply
• +27V (negative earth)• -48V (positive earth)• Nominal 120/240V AC
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Horizon II macro cabinet power supply requirements
Nominal Voltage
Voltage supply range
Current supply maximum
+27 V dc (negative earth)
+19.5 to +30 V dc
204A (at nominal voltage)
-48 v dc
(Positive earth)
-39 to –72 V dc 99A (at nominal voltage)
120/240 V ac
(50 to 60 Hz)
88 to 270 V 45A (at nominal voltage)
![Page 8: Motorola BTS Training (1)](https://reader033.vdocuments.net/reader033/viewer/2022050706/544eb9eeb1af9f27638b504b/html5/thumbnails/8.jpg)
-48v Power Supply Units
![Page 9: Motorola BTS Training (1)](https://reader033.vdocuments.net/reader033/viewer/2022050706/544eb9eeb1af9f27638b504b/html5/thumbnails/9.jpg)
Power Supply Units
All three unit types support the same PSU Alarms:
• O/P over/under voltage.
• I/P under voltage.
• Over temperature.
• Internal Fan failure.
![Page 10: Motorola BTS Training (1)](https://reader033.vdocuments.net/reader033/viewer/2022050706/544eb9eeb1af9f27638b504b/html5/thumbnails/10.jpg)
Circuit Breaker Card (CBC)
6x CCB for CTU2
2x Push Button HIISC
2x Push Button SURF2
1x Tx RF Blocks
1x FAN trays
![Page 11: Motorola BTS Training (1)](https://reader033.vdocuments.net/reader033/viewer/2022050706/544eb9eeb1af9f27638b504b/html5/thumbnails/11.jpg)
Status LEDs
•States LEDs – GREEN (normal operation) RED (Fault).
Compact Flash Slot
•Compact Flash Card slot – contains 32Mb of memory.
TTY MMI
•TTY MMI – connection for 9 pin D type connector.
Reset Buttons
Reset ButtonsCPU – is a Soft Reset (Reset Controllers Main Processors. Software remains in RAM).FULL – is a Hard reset. Removes software from memory.
CAL Port
•CAL PORT – Calibrates the Sync Block. The 8K Reference is used in GCLK calibration.
NIU Ethernet
Port
Synch/NIU TTY PORT
•The NIU Ethernet and SYNC/NIU TTY Port are for factory use only.
H11SC Front Panel
![Page 12: Motorola BTS Training (1)](https://reader033.vdocuments.net/reader033/viewer/2022050706/544eb9eeb1af9f27638b504b/html5/thumbnails/12.jpg)
HIISC Functional Diagram
NIU Block
Line Interface Module
Line Interface Unit &
Framers
TSI (SMURF)
NIU Control
Processor
Radio(s)
Site Control
Processor 8 8
2
8
24?
2
Internal 2048 kbps TDM interface with 32 timeslots.
Control Interface
External E1 or T1 interface.
NIU Port 0 & Port 1
Control via NIU Port 0, TS 0
8
Frequency Reference
Site Controller Card
Internal E1 or T1 interface.
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Horizon II macro HSCII Block diagram
E1 Inputsx 6 Currentx 8 Future
Uplink RSLInsertion
16Kbs only SMuRFSync, Mux, uBCU,
Replacement, FPGA
LAPD Encode/Decode
Layer 2 processing
Field Programmable Gate Array (FPGA)
similar function as the ASIC64Kb switch
incapable of sub-rate switching
BTP function of the BTSruns site software andcall processing functions
CTU2dual carrier unit
single/dual carrier operation
single frequency band
Three on board XMUX functionsFMUX equivalent
Second H2SC configured for redundancy
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Cabinet Expansion
• The Cabinet can be expanded up to 3x Horizon II macro Cabinets
• Can be expanded with Horizonmacro and Mcell6 cabinet combinations.
• Expansion Kit – 1x XMUX card
1x Input/Output (I/O) card
1x 2m Fibre Optic cable
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Cabinet Components – Inter connections
Horizon IICabinet
H-II Radio
NBSCHIISC
Alarm
CTUII radio(s)
TDM
Site IO
H-II ExpansionCabinet
Site IO
XMUX
XMUX
HorizonmacroCabinet
FMUX
FMUX
Alarm
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Holdup Unit (AC Supply only)
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Cabinet Temperature Control
• Operating range -5 C to +45 C
• Three Internal FAN units – speed controlled
• 3x Cabinet Temperature Sensors – » 1x (70 C) for cabinet alarm» 2x (85 C) to shutdown the cabinet, reset at 55 C.
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Horizon II Site Controller (HIISC)
• Performs functions of: MCUF, NIU, FMUX and BPSM in Horizonmacro cabinet.
• Cabinet supports 2x HIISC cards Master/Slave ( redundancy)
• Compact Flash card (32 Mbyte memory)
![Page 19: Motorola BTS Training (1)](https://reader033.vdocuments.net/reader033/viewer/2022050706/544eb9eeb1af9f27638b504b/html5/thumbnails/19.jpg)
XMUX in slot 0
• XMUX Location
![Page 20: Motorola BTS Training (1)](https://reader033.vdocuments.net/reader033/viewer/2022050706/544eb9eeb1af9f27638b504b/html5/thumbnails/20.jpg)
XMUX Functional Diagram
![Page 21: Motorola BTS Training (1)](https://reader033.vdocuments.net/reader033/viewer/2022050706/544eb9eeb1af9f27638b504b/html5/thumbnails/21.jpg)
Site Expansion Board
Connects up to 3x extra cabinets
Fibre optic connections
GPS connector (not supported)
Input/Output (I/O) card
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GPS connection
Fibre connections
IN/OUT
SITE I/O PANEL CONFIGURATION
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Expansion configurations
Horizon IImacro (6xCTU2)
XMUX
Horizon IImacro (6xCTU2)
E1
Two Horizon II macro’s expanded.
Horizon IImacro (6xCTU2)
XMUX
Horizon IImacro (6xCTU2)
Horizonmacro (6 x CTU)
FMUX
E1
Horizon II macro, expanded to a Horizon II macro and a Horizonmacro.
![Page 24: Motorola BTS Training (1)](https://reader033.vdocuments.net/reader033/viewer/2022050706/544eb9eeb1af9f27638b504b/html5/thumbnails/24.jpg)
Expansion configuration (cont)
Horizon IImacro (6xCTU2)
XMUX
Horizonmacro (6 x CTU)
FMUX
FMUX
FMUX
Horizonmacro (6 x CTU)
E1
Horizonmacro controlling a Horizon II macro and another Horizonmacro.
M-Cell 6 controlling a Horizon II macro and a Horizonmacro.
Horizon IImacro (6xCTU2)
XMUX
M-Cell 6 (6 x TCU)
FMUX
FMUX
FMUX
Horizonmacro (6 x CTU)
E1
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Cabinet Alarm Module
• Collects All internal Cabinet Alarms
• Controls the PIX connection (customer external alarms)
• Process Antenna VSWR alarms
Note: NOT backwards compatible to the Horizonmacro cabinet
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Alarm BoardMains
Door 1
LVD
Fan 0
Fan 1 & 2
ALL LEDs are GREEN when the equipment is OK
RED when equipment is faulty
Only 4x active Displays
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Compact Transceiver Unit (CTU2)
CTU2
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Compact Transceiver Unit ( CTU2)
Single Density Mode – High Power 63W (48dbm) 900MHz
50W (47dbm) 1800MHz
Normal Power 20W (43dbm) 900MHz
16W (42dbm) 1800MHz
Double Density Mode –Normal Power 20W (43dbm) 900MHz
16W (42dbm) 1800MHZ
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CTU2 backwards compatibility
Compact Transceiver Unit 2 (CTU2)
Backwards compatible with Horizonmacro Cabinet (with minor limitations).
• Requires the correct software ( GSR6 HII)• Can NOT support the CCB controller function• O/P power reduced when in Double Density Mode• BBH not supported
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CTU2 Receiver Sensitivity Performance
EGSM900• -110.5 dBm, static channel• -107.5 dBm, faded channel•
DCS1800• -111.5 dBm, static channel• -108.5 dBm, faded channel•
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Compact Transceiver Unit 2 (CTU2)
TRANSMIT RF OUT
TEST INTERFACE
TTY INTERFACE
Radio Status LED
Tx Status A
LED
Tx Status B
LED
VCAT INTERFACE
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CTU2 to SURF2 interconnection
Second SURF2 not supported (4 branch diversity)
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PA Branch 1
PA Branch 2
PA Temp.
2nd Temp.
Fwd Power Detect A
Fwd Power Detect B
Rev Power Detect
Phase Adjust
Branch B VVA
Branch A VVA
PA Mode Switches
PA Pad Switches
Basic Block Diagram – TX (PA only)
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RF Equipment
RF Equipment
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Sectorized Universal Receiver Front end (SURF2)
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SURF2 Functional diagram
3x Ant ports with 2x Branches each
Expansion
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CTU2
Signal
Tx Block
Rx Filter
Tx Filter
VSWRMonitor
AlarmBoard
AntennaTo SURF
Tx
• The Antenna VSWR monitoring function is used to detect faults in antennas or antenna path connections.
VSWR Monitoring
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Cabinet TX Blocks
Transmitter RF Blocks
New RF Blocks:
• DUP - Duplexer
• HCU - Hybrid Combiner Unit
• DHU - Dual Hybrid Combiner Unit
Connecting Panels
• Blanking Plate
• Feedthrough plate
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Transmitter Blocks
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Blanking Plate
Used to control the Air flow within the cabinet
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Feedthrough Plate
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Duplexer- DUP
•Connects a single CTU2 to a single Tx/Rx Antenna.
•Typical 1db loss.
![Page 43: Motorola BTS Training (1)](https://reader033.vdocuments.net/reader033/viewer/2022050706/544eb9eeb1af9f27638b504b/html5/thumbnails/43.jpg)
DUP Block diagram
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Hybrid Combiner Unit - HCU
HCU
•Used to connect 2x CTU2 via a Hybrid
•Typical 3-4db loss
![Page 45: Motorola BTS Training (1)](https://reader033.vdocuments.net/reader033/viewer/2022050706/544eb9eeb1af9f27638b504b/html5/thumbnails/45.jpg)
HCU- Block diagram
Typical 3-4db loss
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Dual Hybrid Combiner Unit - DHU
Typical 6 db loss
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Dual Hybrid Combiner Unit - DHU
6dbs typical loss
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Software and Database Requirements
• New Cabinet Type - horizonmacro2 (24)
- horizonmacro2_ext (25)
• Equipping the DRI Density is requiredSingle or Double
(called the associated DRI)
• Setting CTU2 to High Power (max_tx_bts= -1)
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MMI Command : equip <site number> DRIEnter the 1st and 2nd DRI id: 0 0Enter the density of this DRI: SINGLEEnter the cabinet identifier: 0Enter the type of connection to the BTP: masterEnter the port to which the TCU is connected: 0Enter the 1st and 2nd RTF id: Enter the GSM cell ID where the DRI appears: 1 2 3 9 9 4 21Enter antenna select number for this cell: 1Does this DRI use tuneable combining: noEnter diversity flag for this DRI: 1Enter the fm cell type: 4
Equipping a DRI – Single Density
New line within the command
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MMI Command: equip <site number> DRIEnter the 1st and 2nd DRI id: 0 0Enter the density of this DRI: DOUBLEEnter the 2nd DRI id of the associated DRI: 1Enter the cabinet identifier: 0Enter the type of connection to the BTP: masterEnter the port to which the TCU is connected: 0Enter the 1st and 2nd RTF id: Enter the GSM cell ID where the DRI appears: 1 2 3 9 9 4 64Enter antenna select number for this cell: 1Enter diversity flag for this DRI: 1Enter the fm cell type: 4
Equipping a DRI – Double Density
Associated DRI Number
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CTU2 High Power parameter• DRI equipped in SINGLE Density Mode only
• Parameter max_tx_bts = -1 (per cell basis)• Parameter tx_power_cap =1 (DCS1800 only)
• RF power EGSM900 DCS1800
63W (48dbm) 50W (47dbm)