areva mse5001

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MSE 5001

SYSTEM DESCRIPTION

M5001/EN SD/A11 Version A

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SYSTEM DESCRIPTION M5001/EN SD/A11

)

MSE 5001 Page 2/48

Original signed by Date Name Visa

Established 17/01/2005 Monique Wils

Checked 17/01/2005 G. Secretan

Approved 17/01/2005 Vianney Vannson

MSE 5001

SYSTEM DESCRIPTION

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MSE 5001 REF : M5001/EN SD/A11

SYSTEM DESCRIPTION

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This document is the property of AREVA and must not be used, copied or communicated to parties without authorisation

CONTENTS

1. NETWORK DEVELOPMENT DEMANDS OF MSE 5001 7

1.1 Current Situation, Demands and Solutions 7

1.2 Network Applications 8

2. FEATURES AND FUNCTIONS OF MSE 5001 9

2.1 Features and Functions 9

3. HARDWARE STRUCTURE OF MSE 5001 12

3.1 Equipment Appearance 12

3.2 Board Configuration 13

3.3 Installation Mode 17

4. SOFTWARE STRUCTURE OF MSE 5001 18

4.1 Software Structure 18

4.2 Board Software 19

4.3 NE Software 19

4.4 NM System 19

5. SYSTEM ARCHITECTURE OF MSE 5001 20

5.1 Overview 20

5.2 Cross-Connect & Timing Unit 21

5.3 System Control & Communication Unit 22

5.4 Line Unit 22

5.5 Tributary Unit 23

5.6 Orderwire Unit 26

5.7 Power Interface Unit 26

5.8 Fan Interface Unit 26

6. NETWORKING APPLICATION OF MSE 5001 27

6.1 Equipment Networking 27

7. RELIABILITY DESIGN OF MSE 5001 29

7.1 Equipment-Level Protection 29

7.2 Network-Level Protection 30

8. OPERATION, ADMINISTRATION AND MAINTENANCE OF MSE 5001 33

8.1 Operation and Maintenance 33

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8.2 Areva TMS 5000 34

9. TECHNICAL SPECIFICATIONS OF MSE 5001 35

9.1 Equipment Specifications 35

9.2 Power Consumption of Boards 35

9.3 Multiplexing Structure 35

9.4 Interface Types 36

9.5 Interface Specifications 37

9.6 Standards and Recommendations Followed 46

10. ABBREVIATIONS 47

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PAGE BLANCHE ("Blank Page")

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MODIFICATIONS PAGE

Version DATE COMMENTS A 17/01/2005 ORIGINAL ISSUE

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1. NETWORK DEVELOPMENT DEMANDS OF MSE 5001

1.1 Current Situation, Demands and Solutions

The opening of the telecom markets of various countries and customers’ increasing demands on services andequipment security not only sharpens the competition between operators, but presents new demands onequipment manufacturers. It is required that the access layer products should provide more perfect protection,including the Equipment Protection Switch (EPS), and active/standby protection for important boards andconfiguration data. Besides, the equipment is required to be smaller in size and lower in cost. To meet this marketdemand, AREVA has developed the MSE 5001 product, which are more reliable and cost-effective, thus makingequipment networking more economical.

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1.2 Network Applications

The MSE 5001 is a compact access network transmission equipment, mainly used at the service access layer. Theapplication of the MSE 5001 in the overall transmission network is illustrated in Figure 1.

Figure 1 Application of the MSE 5001 in the overall network

Radio DSLAM

PSTN

IP / 2M / 34M

Enterprise

STM1 RING

STM4 RING

TMS 5000

STM1

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2. FEATURES AND FUNCTIONS OF MSE 5001

2.1 Features and Functions

2.1.1 Features

2.1.1.1 Protection mechanism

The MSE 5001 provides the equipment protection and network protection.The equipment protection includes the EPS, 1+1 hot backup of power interface unit, 1+1 backup of cross-connect& timing unit and service data backup of system control & communication unit.The network protection includes the Path Protection (PP), Subnetwork Connection Protection (SNCP) andMultiplexing Section Protection (MSP).

2.1.1.2 Cross-connection capability

The MSE 5001 is capable of 20×20 VC-4 and 1260x1260 VC12 full cross-connection.

2.1.1.3 Flexible service access capability

An MSE 5001 can access STM-4, STM-1, E1/T1, E3/DS3 and 10M/100M Ethernet service.

Maximum STM-4 service accessed: 2×STM-4.

Maximum STM-1 service accessed: 6×STM-1.

Maximum E1/T1 service accessed: 96×E1/T1 when not providing EPS; 80×E1/T1 when providing EPS.

Maximum E3/DS3 service accessed: 18×E3/DS3 when not providing EPS; 12×E3/DS3 when providingEPS.

Maximum Ethernet service accessed: 12×10M/100M.

2.1.1.4 Flexible networking capability

The MSE 5001 can be configured flexibly as Terminal Multiplexer (TM) or Add/Drop Multiplexer (ADM) system.Each Network Element (NE) can be configured either as a single STM-1/STM-4 TM or ADM system, or as a multi- ADM system combined with STM-1/STM-4, and is capable of cross-connection between multiple systems. EachNE supports multiple network topologies, including the chain, ring, ring with chain, tangent ring.

2.1.1.5 NMS with perfect functionality

The Areva TMS 5000 performs unified Operation Administration and Maintenance (OAM) functions on the complexnetwork formed by MSE 5001, and achieves the configuration and grooming of circuits for a secure networkoperation.

2.1.1.6 Power supply and environment monitoring function

The MSE 5001 monitors the specific voltage value and voltage status of the power supply such as severeundervoltage, ordinary undervoltage, provides alarm input and alarm output function. The alarm input function maybe used to achieve remote monitoring of the user environment. The alarm output function may be used to connectthe alarm interfaces of the centralised alarm system to perform centralised monitoring of alarms from each piece of equipment.

2.1.1.7 Synchronisation Status Message management function

The MSE 5001 provides Synchronisation Status Message (SSM) management function of synchronous clock, withwhich the occurrence of timing loop can be avoided during clock switching. With this function, when thesynchronous timing signal traced by the system is degraded, the downstream nodes can switch the input clocksource or change into holdover working status in time, instead of waiting until the synchronous timing signal isdetected to be over the deterioration threshold. Thus, the synchronous operation quality of the entire network canbe improved. Besides, SSM management function can simplify the planning and design of the synchronousnetwork.

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The MSE 5001 NE clock also has perfect SSM management function. Its external synchronous clock input port candirectly receive synchronous information of the external timing equipment. The clock from the synchronous clockoutput port also has the SSM function. It is flexible to set the bits of the SSM in the external 2048kbit/s signals tofacilitate the connection with the third-party equipment. In addition, it is able to set the SSM threshold of each NEfor an easy synchronous network management.

2.1.1.8 Flexible installationThe MSE 5001 presents two type of subrack :Type I : double sided subrack (access from front and rear)Type II : front sided subrack (all access from the front)These subracks can be installed in the following ways:

Installed in an European Telecommunications Standards (ETS)300-119-3-compliant cabinet (including300mm-deep and 600mm-deep).

Installed in a standard 600mm-deep 19-inch cabinet.

Installed in a C series 600mm-deep cabinet developed by AREVA.

Installed in a 19-inch open rack developed by AREVA.

Installed in a RSA rack.

Wall-mounting installation mode (Type II only).

2.1.1.9 Flexible and configurable Data Communication Channel resource

To fulfil the complicated networking demands, the MSE 5001 can be configured flexibly with Data CommunicationChannel (DCC) resource. The DCC can be configured either at the D1~D3 bytes or at the D4~D12 bytes.

2.1.1.10 Embedded Control Channel transparent transmission capability

The MSE 5001 can provide the processing capability of four Embedded Control Channel (ECC) for the NMSinformation transmission. The NMS information can be transmitted via D1~D3 and D4~D12 bytes, and the unusedDCC bytes will be transmitted transparently.

2.1.1.11 Superior Electromagnetic Compatibility performance

The MSE 5001 has superior Electromagnetic Compatibility (EMC) performance. For detailed specificationrequirements, refer to the section of “Technical Specifications of MSE 5001”.In terms of safety compliance, it conforms to UL and CE standards.

2.1.2 Functions

Provides two -48V/-60V Direct Current (DC) power supplies, with the voltage ranging -38.4~ -72V.

Provides up to 6×STM-1 optical interfaces or 2×STM-4 optical interfaces.

Provides up to 96×E1/T1 access, or up to 80×E1/T1 access in case of EPS protection.

Provides up to 18×E3/DS3 access, or up to 12×E3/DS3 access in case of EPS protection.

Provides up to 2×10M/100M Ethernet access.

Provides one network management interface.

Provides two external clock accesses. The clock signals may be either 2048kHz or 2048kbit/s. Interfaceimpedance may be either 75Ω or 120 Ω.

Provides 4-channel data transmission interfaces, or three Boolean inputs and one Boolean output.

Provides one-channel orderwire phone.

Supports the equipment protection, including 1+1 power interface unit backup protection, 1+1 cross-connect & timing unit backup protection, E1/T1 1:5 EPS, two groups of E3/DS3 1:2 EPS, E1/T1 and

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E3/DS3 combined protection, and service data backup of system control & communication unit.

Supports the network protection, including PP, SNCP, MSP and Shared optical fibre virtual trail.

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3. HARDWARE STRUCTURE OF MSE 5001

3.1 Equipment Appearance

The MSE 5001 equipment adopts a compact box-shaped structure, as shown in Figure 1, Figure 2, Figure 3facilitating installation and maintenance.

3.1.1 Type I subrack

Figure 1 Appearance of the MSE 5001 equipment (view of the equipment withboards inserted)

Figure 2 Appearance of the MSE 5001 equipment (rear view of the equipmentwith cables leading-out)

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3.1.2 Type II subrack

Figure 3 Appearance of the MSE 5001 Type II subrack

3.2 Board Configuration

The board configuration slots of the MSE 5001 are shown in Figure 4, Figure 5 and Figure 5 and Figure 6.

3.2.1 Type I subrack

fan

Slot1-power supply 1 Slot2-power supply 2 Slot3-SCC unit

Slot4-Tributary Unit

Slot10-Tributary Unit/lines

Slot5-Tributary Unit

Slot6-Tributary Unit£ P̈£ ©

Slot11-Tributary Unit/lines

Slot12-Tributary Unit£ P̈£ ©

Slot7-cross-connect, clockand lines

Slot8-cross-connect, clockand lines

Slot9-orderwireboard

Slot13-

Figure 4 Front view of the MSE 5001 type I

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Slot21-external clock interface

Slot24-

tributary outlet

Slot25-tributary outlet



Slot32-tributary outlet/bridge

Slot26-

tributary outlet/bridge

Figure 5 Rear view of the MSE 5001 Type I

3.2.2 Type II Subrack

XCS A XCS B

Slot 13

Slot 1 Slot 2 Slot 3




Slot 25 Slot 26

Slot 31 Slot 21Slot 30

Slot 24

XCS A XCS B

Slot 13





XCS A XCS B

Slot 13





Slot 25 Slot 26

Slot 31 Slot 21/32Slot 30

Slot 24

XCS A XCS B

Slot 13





Slot 25 Slot 26

Slot 31 Slot 21Slot 30

Slot 24

XCS A XCS B

Slot 13





XCS A XCS B

Slot 13





Slot 25 Slot 26

Slot 31 Slot 21/32Slot 30

Slot 24

Figure 6 Front View of the MSE 5001 Type II

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Board configuration in the MSE 5001 (Type I and Type II)

Boardname

DescriptionInstallationposition

Interface type and amount

SCC System control &communicationunit

Slot 3 One RJ45 ETHRENT interface used for networkmanagement.

One F&f serial interface used for networkmanagement.

PIU Power interfaceunit

Slot 1 and Slot 2 D-type connector used, each board providing one-channel –48V/60V DC.

EOW EngineeringOrder Wire unit

Slot 9 One RJ11 interface used for orderwire communication

Four RJ45 interface used for transparent transmissionof data or three Boolean inputs and one Booleanoutput.

XCS0 Cross-connect &timing unit

Slot 7 and Slot 8

XCS1 Cross-connectand timing board -with STM-1optical interfacesubboard

Slot 7 and Slot 8 A pair of SC/PC optical interface and providing 1%STM-1 optical signals.

XCS4 Cross-connectand timing board -with STM-4optical interfacesubboard

Slot 7 and Slot 8 A pair of SC/PC optical interface and providing 1%STM-4 optical signals.

STIA Synchronoustiming interface

board

Slot 21 Four BNC connector and providing two external clockinterfaces, whose impedance is 75Ω.

Providing two 2048kHz or 2048kbit/s clock signal.

STIB Synchronoustiming interfaceboard

Slot 21 One DB9 connector and providing two external clockinterfaces, whose impedance is 120Ω

Providing two 2048kHz or 2048kbit/s clock signal.

PL1S 8 % E1 interfaceunit with tributaryprotection-75Ω/120Ω

Slot 4, Slot 5, Slot 6,Slot 10, Slot 11 andSlot 12

Null

PL1D 16 % E1 interfaceunit with tributary

protection-75Ω/120Ω

Slot 4, Slot 5, Slot 6,Slot 10, Slot 11 and

Slot 12

Null

PF1S 8 % E1 framedinterface unit withtributaryprotection-75Ω

Slot 4, Slot 5, Slot 6,Slot 10, Slot 11, Slot12

Null

PF1D 16 % E1 framedinterface unit withtributaryprotection-75Ω


Null

PM1S 8 % E1/T1

interface boardwith tributaryprotection100Ω/120Ω

Slot 4, Slot 5, Slot 6,

Slot 10, Slot 11, Slot12

Null

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Boardname

DescriptionInstallationposition

Interface type and amount

PM1D 16 % E1/T1interface boardwith tributaryprotection -

100Ω/120Ω


Null

PL3 3 % E3/DS3interface boardwith tributaryprotection


Null

ET1D 2-port EthernetElectricalinterfaceBoard VC-12


Two RJ45 connector and providing 2 %10M/100MEthernet electrical signal

OSB1 STM-1 opticalinterface

subboard (SC)

On the XCS1 board(Slot 7 and Slot 8)

Null

SL1 STM-1 opticalinterface unit

Slot 10 and Slot 11 Two SC/PC optical interface and providing 1 % STM-1optical signals.

SD1 2 % STM-1 opticalinterface board

Slot 10 and Slot 11 Four SC/PC optical interface and providing 2 % STM-1optical signals.

OSB4 STM-4 opticalinterfacesubboard (SC)

On the XCS4 board(Slot 7 and Slot 8)

Null

C12 16 % E1/T1120/100Ωelectrical interfaceboard

Slot 24, Slot 25, Slot26, Slot 30, Slot 31,Slot 32

One DB78 connector.

C75S 16×E1 75Ωelectrical interfaceswitching & bridgeboard

Slot 24, Slot 25, Slot26, Slot 30, Slot 31

One DB78 connector.

C12S 16×E1/T1120/100Ωelectrical interfaceswitching & bridgeboard

Slot24, Slot25,Slot26, Slot30,Slot31

One DB78 connector.

C34S 3×E3/DS3 75Ω

electricalinterfacesswitching board

Slot 24, Slot 25, Slot

30, Slot 31

Six BNC connectors.

TSB3 3×E3/DS3switching &bridging board

Slot 26, Slot 32 Null

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3.3 Installation Mode

The MSE 5001 is a standalone transmission equipment, generally not used with other transmission products in thesame cabinet or combined cabinet, but with the wireless base station and access equipment.The MSE 5001 can be installed in the following ways:

Installed in an European Telecommunications Standards (ETS)300-119-3-compliant cabinet (including

300mm-deep and 600mm-deep).

Installed in a standard 600mm-deep 19-inch cabinet.

Installed in a C series 600mm-deep cabinet developed by AREVA.

Installed in a 19-inch open rack developed by AREVA.

Installed in a RSA rack.

Wall-mounting installation mode.

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4. SOFTWARE STRUCTURE OF MSE 5001

4.1 Software Structure

The software system of the MSE 5001 system is of modular structure, composed of board software, NE softwareand Network Management System(NMS). The three modules reside respectively on the functional boards, systemcontrol & communication board and NMS computer, and perform specific functions. Software structure of the MSE5001 system is shown in Figure 7. In the figure, all modules are NE software except "Network ManagementSystem" and "Board Software". The following details the functions of the three modules and how the functions areimplemented.

NMS

Communication module

Equipment management module

Mailbox communication module

Board software

D a t a b a s em an a g em en t m o d ul e

R e al t i m em ul t i - t a s k o p er a t i n g s y s t em

Figure 7 Overall software structure of the MSE 5001 system

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4.2 Board Software

It directly controls the functional circuits. In the corresponding board, it implements specific functions of the NE andthe function of default filtering and one second filtering, and it supports the board management from the NEsoftware.

4.3 NE Software

Real time multi-task operating system

The real time multi-task operating system of the MSE 5001 system NE software is responsible for managingpublic resources and supporting application programs. It isolates the application programs from the processor and provides an application program execution environment, which is independent of the processor hardware.

Mailbox communication

Mailbox communication is the interface module between host software and board software. According to thecorresponding communication protocol, communication function between NE software and board software isimplemented for information exchange and equipment maintenance. Via mailbox communication, boardmaintenance and operation commands from the NE software are sent to the boards. On the other hand, thecorresponding board status and alarm and performance events are reported to the NE software.

Equipment management module

Equipment management module is the kernel of the NE software for implementing network elementmanagement. It includes Manager and Agent. Manager can send network management operation commandsand receive events. Agent can respond the network management operation commands sent by the manager,implement operations to the managed object, and send events according to state change of the managedobject.

Communication module

The communication module exchanges management information between Network Management (NM) systemand NE and among NEs. It consists of network communication module, serial communication module and ECCcommunication module.

Database management module

The database management module is an organic part of the NE software. It includes two independent parts:data and program. The data are organised in the form of the database, made up of network database, alarmdatabase, performance database and equipment database. The program accesses and manages data in thedatabase.

4.4 NM System

The MSE 5001 uses AREVA TMS 5000. This NMS is capable of managing the optical transmission network on auniform basis and maintaining SDH, Dense Wavelength Division Multiplexing (DWDM) and NEs in the wholenetwork. In compliance with International Telecommunication Union – Telecommunication Standardisation Sector (ITU-T) Recommendations, it is a network management system integrating standard management informationmodel and object-oriented management technology. It exchanges information with NE software via thecommunication module to implement monitoring and management over network equipment.Via the NMS, users can perform such operations on the NE as configuration management, fault management,

performance management, security management, path management, and report management.

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5. SYSTEM ARCHITECTURE OF MSE 5001

5.1 Overview

With the cross-connect unit as its core, the MSE 5001 system consists of the tributary unit, line unit, EPS protectionunit, timing unit, system control & communication unit, orderwire unit, power interface unit and fan interface unit.The system architecture of the MSE 5001 is shown in Figure 8.

NMS Orderwire

Representing backup

E1/T1E3/DS3

STM-1/STM-4

STM-1/STM-4

20 x 20Space divisioncross-connectmatrix

Tributary unit 1

TPS protection unit

E1/T1E3/DS310M/100M

Line unit 1

Line unit n

Timingunit

System Control &Communicationunit

Orderwireunit

External clock

Powerinterfaceunit

Faninterfaceunit

-48V DC

Tributary unit nE1/T1E3/DS310M/100M

Figure 8 System architecture of the MSE 5001

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5.2 Cross-Connect & Timing Unit

The functions of cross-connect and timing unit are combined in XCS0/XCS1/XCS4 board, which can implement1+1 backup, with the switching time of less than 50ms.

5.2.1 Timing UnitThe timing unit can provide two external clocks, and clock signals are 2048kHz or 2048kbit/s optional via softwaresetting. The input/output of the clock signal is implemented by the 75Ω STIA board or 120 Ω STIB board. The timingunit can perform the following functions:

Supports three kinds of working modes: locked mode, holdover mode and free-run mode.

Reports the alarm and triggers the clock switching in case of an invalid clock.

Capable of selecting one from multiple reference sources such as free-run clock, tributary clock, line clockas the reference source of the system clock.

Capable of selecting one from multiple reference sources as an external synchronisation clock output.

Capable of setting the reference source priority function. The software can process the Synchronisation Status Message (SSM) byte.

Provides two external clock interfaces, and the clock signals are 2048kHz and 2048kbit/s optional.

Provides the function of inserting SSM byte. It can extract and process the SSM byte of data clock.

Capable of setting the function of threshold cut-off by external timing output signals.

The software control clock protection works in either revertive mode or non-revertive mode.

5.2.2 Cross-Connect Unit

The cross-connect unit performs the following functions:

Supports 20×20 VC-4 and 1260x1260 VC12 full cross-connection.

Detects the EPS status signals sent from the tributary unit. When EPS status signals are abnormal, theEPS protection will be triggered.

Detects the working status of the cross-connect unit and triggers the active/standby switching when anyabnormal operation is detected.

The equipment protection can work in non-revertive mode.

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5.3 System Control & Communication Unit

The System Control & Communication unit is implemented by the SCC board and is chiefly responsible for theSynchronous Equipment Management Function (SEMF) and Message Communication Function (MCF). It has thefollowing specific functions:

Collects and manages information, and monitors the equipment running status: alarm information

management, equipment performance monitoring and service tracing.

Initializes and configures various boards, monitors the alarms of various boards and collects their performance parameters.

Extracts the DCC byte to constitute the transmission link of an SDH management network.

Provides 10M/100M Ethernet interface. The software provides Qx interface and F interface used for NMconnection.

The software is responsible for SNCP, MSP, PP and EPS control and service data configuration.

Capable of automatically uploading the configuration data backed up in the XCS0/XCS1/XCS4 board, thusrestoring configuration data of the SCC board.

5.4 Line Unit

The STM-1 optical interface board and STM-4 optical interface board implement the line unit function in the MSE5001.

5.4.1 Types

5.4.1.1 STM-1 optical interface unit

In the MSE 5001 equipment, STM-1 optical interface appears in two forms and has three kinds of boards:

SL1: STM-1 optical interface board, providing 1× STM-1 optical interface of SC/PC type.

SD1: STM-1 optical interface board, providing 2× STM-1 optical interface of SC/PC type.

OSB1: STM-1 Optical Interface subboard. It’s a subboard on the XCS1 board, and provides 1× STM-1optical interfaces of SC/PC type. Optical connecters are on the XCS1 front panel.

5.4.1.2 STM-4 optical interface unit

OSB4: STM-4 optical interface subboard. It’s a subboard on the XCS4 board, and provides 1× STM-4 opticalinterface of SC/PC type. Optical connecters are on the XCS4 front panel.

5.4.2 Functions

The line unit performs the following functions:

Supports the monitoring and reporting of the working timeslot and protection timeslot status in SNCP.

Supports automatic laser shutdown.

Supports the monitoring and switching of the working status of the active/standby XCS0/XCS1/XCS4board.

Supports the monitoring and reporting of the alarm and performance of a regenerator section, multiplesection and higher order path.

Supports such maintenance functions as inloop and outloop.

Supports the query of the board serial number.

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5.4.3 Fibre Leading-out Mode

For the OSB1 and OSB4 subboards, the fibre leading-out are completed via the SC/PC connectors on the frontpanel of the XCS1 and XCS4 boards. For the SL1/SD1 board, the fibre is led out via the SC/PC connector on itsfront panel.

5.5 Tributary Unit

5.5.1 E1/T1 Electrical Interface Board

5.5.1.1 Types

The MSE 5001 provides four kinds of E1/T1 electrical interface boards for E1/T1 service access. All these boardssupport EPS. The tributary protection unit and tributary unit use the same boards, and EPS is implemented throughthe tributary leading-out interface.

PL1S: 8×E1 interface board with tributary protection-75Ω/120Ω.

PL1D: 16×E1 interface board with tributary protection-75Ω/120Ω

PF1S: 8×E1 framed interface board with tributary protection-75Ω.

PF1D: 16×E1 framed interface board with tributary protection-75Ω.

PM1S: 8×E1/T1 interface board with tributary protection-100Ω/120Ω.

PM1D:16×E1/T1 interface board with tributary protection-100Ω/120Ω.

5.5.1.2 Functions

The interface boards have the following functions: Supports non-bundled path protection, with the switching time of less than 50ms.

Implements the Bit Error Ratio (BER) tester function.

Provides the function of multi-level inloop and outloop.

Supports the function of retiming (while not supported in T1 mode). The retiming clock is the system clockand receiving clock at tributary interface.

PF1S/PF1D supports E1 frame format function and Cyclic Redundancy Check (CRC).

Supports online software loading.

Supports the online query of the board version. Supports the board software resetting.

5.5.2 E3/DS3 Electrical Interface Board

5.5.2.1 Type

The MSE 5001 provides one kind of E3/DS3 tributary board for E3/DS3 service access, which also supports EPSprotection. The tributary protection unit and tributary unit use the same boards.

PL3: 3×E3/DS3 interface board with tributary protection-75Ω.

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5.5.2.2 Functions

The interface board has the following functions:

Supports bundled revertive path protection, with the switching time of less than 50ms.

Provides the functions of multi-level inloop and outloop.

Supports online software loading.

Supports the online query of the board version.

Supports the board software resetting.

5.5.3 10M/100M Ethernet Interface Board

5.5.3.1 Type

The MSE 5001 provides one kind of Ethernet Interface Board, for 10M/100M Ethernet service access.

ET1D : 2-port Ethernet Electrical Interface Board(VC-12).

5.5.3.2 Functions of ET1D board

The interface board has the following functions:

Provides 2-port 10M/100M auto-negotiation Ethernet electrical interfaces. The Ethernet signals areaccessed via RJ-45 interfaces on the front panel.

Electrical features (such as flow control) of Ethernet interface follow IEEE 802.3x protocol.

The packets from 1~2 10M/100M Ethernet frames can be mapped into 1~16 VC-12. If N i E1 signals canbe mapped in each port, Ni is no more than 16. The number of E1 signals that can be mapped by theET1D board is ∑Ni≤16 (i is the number of Ethernet interfaces used on the ET1D board, i=1~2).

Since Ethernet frames are mapped into VC-12s and transmitted in SDH network, so Ethernet service canbe protected with SDH layer protection.

Provides bandwidth sharing and statistical multiplexing based on the Virtual Local Area Network (VLAN)and port to improve bandwidth utilisation ratio.

Provides Ethernet Layer-2 route functions (Layer-2 route can be realised by extracting Medium AccessControl (MAC) source address and port information from input MAC frames at input port, and store them inMAC address table with capacity of 8k. It also supports manually adding MAC addresses and portinformation to MAC address table).

Provides security isolation among users, and security isolation among VLANs within one user (one ET1Dboard supports up to two users).

To prevent conflict of the data with same VLAN but of different users, the ET1D board must isolate VLAN of

different users to separate VLANs. Therefore, user ID is introduced: ports (including the MAC port and VC-Trunkport) with the same user ID belong to a group and any Ethernet data is limited to this group. At the same time, theVLAN is isolated within each user. Data of different VLAN cannot be forwarded either. All ports of the ET1D board can be divided into a number of groups and a user uses a separate group.

Supports multicast and broadcast functions. (for broadcast packet, the ET1D board forwards to all portswith the same VLAN of the same user. With Internet Group Management Protocol (IGMP) SNOOPINGmulticast function, the ET1D board establishes route information of multicast addresses to avoid broadcaststorm.)

Provides IEEE 802.1D Spanning Tree Protocol (STP) function to avoid failure in transfer of MAC frames,broadcast storm, MAC frame receiving sequence error, and so on in network topology with loops.

Provides multiple inloop and outloop methods to enable fast and effective trouble shooting.

Provides the functions of flow control.

When the rate of the data flow receiving at the Ethernet port is larger than the rate of encaPIUlating and mappingdata at the SDH line, or when the rate of de-mapping and de-caPIUlating data frame at the SDH line is larger thanthe rate of the data flow transmitting at the Ethernet port, the data saved in the memory will increase. When the

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data saved reach to a certain value, the control unit will send a signal to the line with larger rate of data flow, so asto control the data increase, thus balancing the data processing at both sides. When the data in the memorydecrease to a certain value, the control unit will send another signal to end the flow control and notify data channelto restore to normal.

5.5.4 Leading-out Mode

5.5.4.1 Ethernet tributary unit

The front leading-out mode is adopted for Ethernet tributary signals. The signals are accessed in/out of theEthernet board via RJ-45 connector.

5.5.4.2 PDH tributary unit

Leading-out mode is adopted for tributary signals. The connecting board performs the signal transfer and connectsthe signal output from the tributary board directly to the leading-out interface.The MSE 5001 provides one kind of tributary connecting boards:

C12: 16×E1/T1 electrical interface board.

When the equipment is required to provide EPS protection, the following boards must be used in combination:

C75S: 16×E1 75Ω electrical interface switching & bridge board.

C12S: 16×E1/T1 120/100Ω electrical interface switching & bridge board.

C34S: 3×E3/DS3 75Ω electrical interface switching board.

TSB3: 3×E3/DS3 75Ω switching & bridging board.

The leading-out mode of the tributary units is shown in Table 1.

Table 1 Leading-out mode of the tributary units

Interface board Connecting boardProtection

Name Slot available Name Slot availablePL1S/PL1D/PM1S/PM1D/PF1S/PF1D

C12No EPSprotection

PL3

Slot4, Slot5, Slot6, Slot10,Slot11 and Slot12

C34S

Slot24, Slot25,Slot26, Slot30, Slot31and Slot32

PL1SA/PL1DA/PF1S/PF1D(protected unit)

Slot4, Slot5, Slot6, Slot10and Slot11

C75S Slot24, Slot25,Slot26, Slot30 andSlot31

PL1SA/PL1DA/PF1S/PF1D(protection unit)

Slot12 Null Slot32

PL1SB/PL1DB/PM1S/PM1D (protected unit)

Slot4, Slot5, Slot6, Slot10and Slot11

C12S Slot24, Slot25,Slot26,Slot30 andSlot31

PL1SB/PL1DB/PM1S/PM1D (protection unit)

Slot12 Null Slot32

PL3 (protected unit) Slot4, Slot5 or Slot10, Slot11 C34S Slot24, Slot25 or Slot30, Slot31

EPS protection

PL3 (protection unit) Slot6 or Slot12 TSB3 Slot26 or Slot32

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5.6 Orderwire Unit

The orderwire unit implements its function by means of the EOW board, which provides one-channel orderwire and4-channel data transmission interfaces,(or three Boolean inputs and one Boolean output).The orderwire phone interface conforms to Pulse-Code Modulation (PCM) standards.The Orderwire unit can perform the following functions:

Implements the extraction and insertion of overhead bytes such as E1, E2, and F2.

Provides one-channel orderwire phone via E1/E2 byte, and supports the functions of addressing call andconference call.

Provides four transparent transmission RS-232 broadcast interfaces, namely, S1, S2, S3 and S4, via F2,X1, X2 and X3 bytes. The maximum transmission rate is 19.2kbit/s for each data interface. Both point-to-point and point-to-multi-point transmission are available.

Four data interfaces can be multiplexed into three Boolean inputs and one Boolean output.

Provides communication module to keep communication with the SCC board, reports alarms to the TMS5000 and receives the commands from the TMS.

5.7 Power Interface Unit

The power interface unit implements its function by means of PIU board and adopts centralised power supplymode. The input power supply is -48V/-60V DC. The input -48V/-60V DC passes the input protection module whichprovides the integrated equipment power interface with power reverse polarity non-destructive protection, lightningprotection, Electromagnetic Interference(EMI) filtering and satisfies the EMC design requirements.The power interface unit can perform the following functions:

Monitors the input/output voltage and provides the input under-voltage, power module failure alarm andunder-voltage shutdown function.

Provides the system with power 1+1 backup. The equipment can still run normally even if one PIU boardbecomes faulty.

Provides the board temperature detection by means of the temperature sensor to monitor the operatingtemperature of the board.

5.8 Fan Interface Unit

The fan interface unit implements its function by means of the FAN board.The fan interface unit can perform the following functions:

Possesses the intelligent fan functions. When the fan interface unit detects the temperature crosses theupper limit, the fan will rotate at a higher speed. When the fan interface unit detects the temperature dropsto the lower limit of 3°C, the fan will rotate at a lower speed.

Detects the fan fault. If any fan stops rotating, it will report the alarm and the red alarm indicator will turnon.

Provides over-voltage protection for the fans. Since –48V/-60 power supply works under –38.4V ~ -72V,while the fan should works under the voltage less than –56V, so the over-voltage protection is a must.

Supports the board hot-swapping.

Supports the query of the fan board temperature.

Supports the query of the board information.

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6. NETWORKING APPLICATION OF MSE 5001

6.1 Equipment Networking

The MSE 5001 can be configured as a TM or ADM NE. This equipment is chiefly applied at the service accesslayer, therefore it has simple networking modes and can constitute such topology networking modes, such aschain, ring, ring with chain, tangent ring and shared optical fibre virtual trail.

6.1.1 Chain Network

TM TM

TM TM ADM

Figure 9 Chain network

The MSE 5001 can be configured as the chain network as shown in Figure 9. This networking mode is simple andrequires less optical fibre, but does not provide service protection.

6.1.2 Ring Network

ADM

Figure 10 Ring network

The MSE 5001 can be configured as the basic ring network as shown in Figure 10 and is capable of providingservices with PP, MSP or SNCP.

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6.1.3 Ring-with-Chain Network

TM

TM ADMTM MADM

Figure 11 Ring-with-chain network

The MSE 5001 can form the ring-with-chain network as shown in Figure 11. The configuration of the ring and chain

in the networking is shown in Table 2.Table 2 The configuration of the ring and chain

Ring Chain

STM-1 SNCP/MSP STM-4 SNCP/MSP

STM-1 SNCP/MSP

STM-4 SNCP/MSP

6.1.4 Tangent Ring Network

MADM

Ring1

ADM

Ring2

Figure 12 Tangent ring network

The MSE 5001 can form the tangent ring network as shown in Figure 12. The configuration of the ring 1 and ring 2in the networking is shown in Table 3.

Table 3 Configuration of Ring 1 and Ring 2

Ring1Ring2

STM-1 SNCP/MSP STM-4 SNCP/MSP

STM-1 SNCP/MSP

STM-4 SNCP/MSP

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7. RELIABILITY DESIGN OF MSE 5001

The MSE 5001 employs a variety of advanced protection technologies in designing its hardware and software, andprovides multiple protection mechanisms for the network, thus guaranteeing a top-quality transmission service.

7.1 Equipment-Level Protection

7.1.1 1+1 Redundancy Hot Backup Protection for Power Supply

The power system can provide two -48V/-60V DC feed-ins and the power boards in Slot1 and Slot2 back up eachother. Thus, even if one board becomes faulty, the equipment will not be negatively affected.

7.1.2 1+1 Backup Protection for Cross-Connect & Timing Unit

The cross-connect and timing boards in Slot 7 and Slot 8 are in mutual backup mode. In case one board becomesfaulty, the equipment can still work normally.

7.1.3 Tributary Protection Switching

The MSE 5001 provides the EPS function. When the tributary board is not in position or pulled off, the EPSprotection will be started. Meantime, when some modules or components such as power, software, clock, etc. of atributary board work abnormally, the EPS protection can also be triggered.EPS protection has the following types available:

1:N (N≤5) EPS protection for E1/T1 electrical interface board.

The E1/T1 electrical interface board in Slot12 protects those in Slot4, Slot5, Slot6, Slot10 and Slot11.

Two groups of 1:N (N≤2) EPS protections for E3/DS3 electrical interface board.

The E3/DS3 electrical interface board in Slot6 protects those in Slot4 and Slot5.The E3/DS3 electrical interface board in Slot12 protects those in Slot10 and Slot11.

Both the protection of a group of 1:N (N≤3) 2048kbit/s or 1544kibt/s and a group of 1:N (N≤2)34368kbit/sor 44736kbit/s electrical interfaces exist.

The E1/T1 electrical interface board in Slot12 protects those in Slot4 or Slot10 or Slot11.The E3/DS3 electrical interface board in Slot6 protects that in Slot5 or Slot 4.

7.1.4 Backup of System Control & Communication Service Data

The configuration data on the SCC board are backed up on the active and standby XCS0/XCS1/XCS4 boardsrespectively, and the two sets of data back up each other. When the SCC board becomes faulty and has beenreplaced with a new one, it is not necessary to re-send the configuration data. The new SCC board will first readthe data from the active XCS0/XCS1/XCS4 board, and if failed, it will turn to the standby one. Thus, theconfiguration data on the SCC board are still kept consistent.

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7.2 Network-Level Protection

The MSE 5001 has superior performance in self-healing protection and can implement two-fibre unidirectional pathprotection, subnetwork connection protection, linear multiplex section protection and ring multiplex sectionprotection. Thus, the services on the network can get effective protection in case of fibre cut, line board damage or node failure.

7.2.1 Path Protection

The protection mechanism of a two-fibre unidirectional path protection ring and that of a two-fibre bidirectional pathprotection ring are shown respectively in Figure 13 and Figure 14. Diagram (a) shows the service direction innormal status, and Diagram (b) the service direction in switching status.

P1

CA AC

CA AC

S1

S1

P1

D A

CB

( a)

CA AC

P1

CA AC

S1

S1

Switching

P1

D A

CB

( b)

X

Figure 13 Unidirectional path protection ring

S2

CA AC

CA AC

S1

P2

P1

D A

C

B

( a)

S2

CA AC

CA AC

S1

P2

Switching

P1

D A

C

B

(b)

X

23

Figure 14 Bidirectional path protection ring

7.2.2 Subnetwork Connection Protection

As network structures are becoming more and more complicated, subnetwork connection protection (SNCP) is theonly service protection mode applicable for various network topologies with a fast switching speed. SNCP is aprotection at path layer and is used to protect the service between the two points in any complicated networks (e.g.,two-fibre path protection ring on the ring network). The support of the MSE 5001 for SNCP is completely in

compliance with ITU-T Recommendation G.841. Even in the case of multiple service switching, the MSE 5001 canalso meet the requirements of switching time less than 50ms.

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7.2.3 Multiplex Section Protection

7.2.3.1 Linear multiplex section protection

Linear multiplex section protection is mainly used in linear networking mode. There are two kinds of protectionmodes: 1+1 protection mode and 1:N (N ≤ 3) protection mode. Under the 1+1 protection mode, each working

system is protected by a dedicated standby system. Under the 1:N protection mode, N systems share oneprotection system. For the latter protection mode when the systems run smoothly the protection system can beused to transmit extra services in order to achieve higher efficiency. However, it needs a complicated AutomaticProtection Switching (APS) protocol. The MSE 5001 supports the 1+1 and 1:N protection modes in the point-to-point linear networking mode. Under the 1:1 protection mode, protection system can carry additional services. For those protection modes, the switching time is less than 50ms as specified in ITU-T Recommendations.

7.2.3.2 Ring multiplex section protection

The protection mechanism of two-fibre bidirectional multiplex section protection and that of two-fibre unidirectionalmultiplex section protection are shown respectively in Figure 15 and Figure 16. Diagram (a) shows the servicedirection in normal status, and diagram (b) the service direction in switching status.

CA

CA CA

CA AC

AC AC

AC

S1/P2 S1/P2

S2/P1 S2/P1

A A

C C

D DB B

S2/P1 S2/P1

S1/P2 S1/P2

(a) (b)

Switching

Figure 15 Bidirectional multiplex section protection

CA

CA CA

CA AC

AC AC

AC

S S

P P

A A

C C

D DB B

P PS S

(a) (b)

Switching

Figure 16 Unidirectional multiplex section protection

7.2.4 Shared Optical Fibre Virtual Trail

When MSE 5001 systems are used to construct the network, one ring can share the intersection section of fibreson the other ring in the two-ring intersection topology, and can use surplus transmission bandwidth of this sectionas virtual optical paths, thus economizing fibres and optical interface boards. This kind of networking is referred toas the shared optical fibre virtual trail. Bandwidth limitations of the two rings must be taken into consideration whenusing shared fibre virtual trail protection ring.The topology of a typical shared optical fibre virtual trail protection ring is illustrated in Figure 17.

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Ring 2STM-1

ADM ADM

ADM ADM ADM

ADM

Ring 1STM-4

Figure 17 Topology of a sh ared optical fibre virtual trail protection ring

The implementation of multiplex section protection requires APS protocol. But VC-4 traffics through the sharedvirtual optical trails on the shared fibre virtual trail protection ring belong to different protection groups, the APSprotocol can not be shared by them. On a shared optical fibre virtual trail protection ring, only path protection or SNCP can be employed to protect the services.

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8. OPERATION, ADMINISTRATION AND MAINTENANCE OF MSE 5001

8.1 Operation and Maintenance

In the equipment and board design as well as function setting, user’s requirements for equipment operation andmaintenance are all taken into consideration, so the MSE 5001 system can provide powerful equipmentmaintenance capabilities. They are listed below:

On the equipment side :

Running status indication of some boards assists maintenance personnel in monitoring the equipmentrunning.

Provides audio and visual alarm.

Provides the orderwire phone for easy maintenance.

Table 4 shows the meanings of the indicators of some boards.

Table 4 Meanings of the indicators of some boards

Boardname

Indicator Status description

Flashing 5 times everysecond.

NE software is being loaded.


NE software is being deleted.

Flashing once every second. NE software is lost, awaiting for loading

Running indicator(green)

Flash once every twoseconds.

Normal operation state

Normally off. No alarm occurs to the current NE

Flashing once every other second.

Minor alarm occurs to the current NE.

Alarm indicator(red)

Flashing twice every other second.

Major alarm occurs to the current NE.

Flashing Data is being transmitted.Ethernet indicator (yellow)

Normally off. No data transceived

Normally on Link connection is normal.

SCC

Ethernet indicator (green)

Normally off Link breaks or is not connected.

Normally on Data is being transmittedGreen indicator

Normally off No data transceived

Normally on Boolean signal is being transmitted.

EOW

Orange indicator

Normally off No Boolean signal transceived

Normally on FAN 1 stops rotating.FAN1 ALM indicator

Normally off FAN 1 works normally.

Normally on FAN 2 stops rotating.

FAN

FAN2 ALM indicator

Normally off FAN 2 works normally.

PIU OUT indicator (green) Normally on Supply power for other boardsnormally.

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Boardname

Indicator Status description

Normally off The input voltage is abnormal or PIUboard fails.

Flashing 5 times every

second.

NE software is being loaded.


NE software is being deleted.

Flashing once every second. NE software is lost, awaiting for loading

Running indicator(green)

Flash once every twoseconds.

Normal operation state

Normally off. No alarm occurs to the board

XC1/XC4

Alarm indicator(red)

Normally on The board works normally.

On the NMS side : Dynamically monitors the running status, performance event and alarm of the equipment on the network

via NMS.

In case of abnormal service interruption, the service will be automatically protected.

Provides audio and visual alarm.

Provides the service with multiple loopback testing functions.

Remotes Maintenance.

8.2 Areva TMS 5000

The MSE 5010 is uniformly managed by the NM system. Through the Qx interface or MML interface, the NMsystem can implement management, maintenance and test to the whole optical transmission system in terms of

fault, performance, configuration and security. The NM system improves the quality of network services, reducesthe maintenance cost and ensures rational use of network resources. Areva provides telecommunication operators with a whole series of optical transmission systems, which can beused on networks of different layers. To manage sub-network, area network or national network efficiently, the NMsystem is required to feature basic operation and maintenance functions and the monitoring and managementcapability on the optical transmission network as well. According to the Telecommunications Management Network(TMN) network management hierarchical model, the telecommunication network management is divided intonetwork element layer (NEL), NE management layer (EML), network management layer (NML), servicemanagement layer (SML) and business management layer (BML). The NE management system manages NEequipments within one subnet, while the NM system implements the network layer assignment, fault monitoring,performance analysis, resource analysis, circuit dispatching, etc. in a large-scale network.To adapt to network management of different scales and levels, the management system of Areva consists of thelocal maintenance terminal and the NE management system. These products cover the applications of the TMN

from the NE management layer to the subnet management, and contain part of the service management layer functions. With these products, Areva is able to provide telecommunication operators with a complete package of network management solutions for single equipment, single service to large scale and multi-service networks.

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9. TECHNICAL SPECIFICATIONS OF MSE 5001

9.1 Equipment Specifications

Dimensions : 436mm (W) x 365mm (D) x 133.3mm (H) (Type I subrack)Dimensions : 436mm (W) x 291mm (D) x 219mm (H) (Type II subrack)Power supply parameter: -48V/-60V DC, ranging –38.4 ~ -72V.Power consumption: about 90W in full configuration.Weight in full configuration: 15kg

9.2 Power Consumption of Boards

The power consumption of various boards of the MSE 5001 are listed in Table 5.

Table 5 Power consumption of various boards of the MSE 5001

Board name Power consumption(W) Board name Power consumption(W)à

SCC 6 PM1D 8.8

EOW 10 PL3 3.5

XCS0 8 ET1D 8.5

XCS1 10 OSB1 6.5

XCS4 14 OSB4 10

PL1S 4 FAN 10

PL1D 4.05 C34S 0.42

PF1S 4 TSB3 0.42

PF1D 8.8

PM1S 4

9.3 Multiplexing Structure

The multiplexing structure of the MSE 5001, as illustrated in Figure 18.

STM-1 AUG-1 AU-4

STM-4 AUG-4

¡Á1

¡Á4

¡Á1

¡Á1

VC-4 TUG-3

TUG-2

TU-3 VC-3 C-3

TU-12 VC-12 C-12

¡Á7

¡Á3

¡Á3

2.048Mbit/s

44.736Mbit/s

Multiplxing

Aligning

Mapping

¡Á1

Pointer processig

Figure 18 Multiplexing structure

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9.4 Interface Types

Interface types provided by the MSE 5001 are listed in Table 6.

Table 6 Interface types

Interface Type Interface Rate and Feature

Electrical interface 1544kbit/s;2048kbit/s;34368kbit/s;44736kbit/s

Optical interface 155520kbit/s; 622080kbit/s

Clock interface 2048kbit/s; 2048kHz

Ethernet interface 10M/100M RJ-45 electrical interface

Auxiliary interface Administration interface, orderwire interfaceand data interface

Electrical interfaces

Electrical interface types provided by the MSE 5001 are listed in Table 7 all of which are in compliance with ITU-T

Recommendation G.703.Table 7 Electrical interface types

Electrical InterfaceRate

Code Type Transmission Media

1544kbit/s B8ZS 100Ω balanced cable

2048kbit/s HDB3 120Ω balanced cable, 75 ΩUnbalanced cable

34368kbit/s HDB3 75Ω unbalanced cable

44736kbit/s B3ZS 75Ω unbalanced cable

Optical Interface

Optical interface types provided by the MSE 5001 are listed in Table 8 all of which are in compliance with ITU-TRecommendations.

Table 8 Optical Interface types

STM-1 Optical Interface S-1.1; L-1.1; L-1.2

STM-4 Optical Interface S-4.1; L-4.1; L-4.2

Laser security: In compliance with ITU-T Recommendation G.958

Optical fibre connectors: SC/PC.Ethernet interfaces

Ethernet interface types are listed in Table 9.

Table 9 Ethernet interface types

Interface Type Interface Rate and Feature

RJ-45 electrical interface 10M/100M BASE-T autosensing

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Clock interfaces

Clock interfaces provided by the MSE 5001 are listed in Table 10.

Table 10 Clock interfaces

External synchronous

source

2-port input, 2048kbit/s (G.703 § 6) or 2048kHz (G.703 § 10)

Synchronous output 2-port output , 2048kbit/s (G.703 § 6) or 2048kHz (G.703 §10), 75Ω

Auxiliary interfaces

Auxiliary interfaces provided by the MSE 5001 are listed in Table 11.

Table 11 Auxiliary interfaces

Managementinterfaces

One Ethernet interface and one F interface

Orderwire interface one 2-line orderwire telephone interface

Data interface 4 user-defined RS-232 serial data interfaces

9.5 Interface Specifications

This section lists ITU-T specifications for transmission systems, such as those for optical/electrical interfaces, clocksynchronization, EMC and environment, along with actual test results of the MSE 5001 system.

9.5.1 Optical Interface Specifications

9.5.1.1 Performance specifications for optical interfaces

Different launched optical powers and receiver sensitivities may lead to different possible transmission distance.The classification of optical interfaces supported by the MSE 5001 is shown in Table 12.

Table 12 Application codes of optical interfaces

Inter-office communicationApplication

Short-haul Long-haul

Nominal wavelength (nm) 1310 1310 1550

Optical fibre type G.652 G.652 G.652

Type S-1.1 L-1.1 L-1.2

STM-1 Transmissiondistance (km)

28 56 87

Type S-4.1 L-4.1 L-4.2

STM-4 Transmissiondistance (km)

20 47 -

9.5.1.2 Optical interface parameters

Optical interface parameters of the MSE 5001 system are listed in Table 13 and Table 14.

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Table 13 Parameters specified for STM-1 optical interfaces

Item Unit Value

Nominal bit rate kbit/s STM-1 155520

Application code - S-1.1 L-1.1 L-1.2

Operating wavelength range nm 1261-1360 1280-1335 1480-1580

Source type - MLM* MLM SLM*

Maximum Root-Mean-Square(RMS) width (σ)

nm 7.7 3 -

Maximum -20dB width nm - - 1

Minimum side modesuppression ratio

dB - - 30

Maximum mean launchedpower

dBm -8 0 0

Minimum mean launchedpower

dBm -15 -5 -5

Transmitter at referencepoint S

Minimum extinction ratio dB 8.2 10 10

Attenuation range dB 0-12 10-28 10-28

Maximum dispersion ps/nm 96 246 NA*

Minimum optical return loss of cable plant at S, including anyconnectors

dB NA NA 20Optical pathbetween Sand R

Maximum discrete reflectance

between S and R

dB NA NA -25

Minimum sensitivity dBm -28 -34 -34

Minimum overload dBm -8 -10 -10

Maximum optical path penalty dB 1 1 1

Receiver atreferencepoint R

Maximum reflectance of receiver, measured at R

dB NA NA -25

MLM:Mult-Longitudinal Mode (Laser)SLM:Single Longitudinal Mode (Laser)NA:Not Applicable

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Table 14 Parameters specified for STM-4 optical interfaces

Item Unit Value

Nominal bit rate kbit/s STM-4 622080

Application codes - S-4.1 L-4.1 L-4.2

Operating wavelength range nm 1293-1334/1274-1356

1300-1325/1296-1300

1480-1580

Source type - MLM MLM SLM

Maximum RMS width (σ) nm 4/2.5 2.0/1.7 -

Maximum -20dB width nm - -

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Table 15 Allowable frequency deviation at the input port

Optical Interface Level Standard Requirement (ppm)

STM-1 !20

STM-4 !20

9.5.1.4 Bit rate error tolerance at the output port

Specifications for the bit rate error tolerance at the output port of each application code in the MSE 5001 systemare listed in Table 16.

Table 16 Bit rate error tolerance at the output port

Optical Interface Level Standard Requirement (ppm)

STM-1 !20

STM-4 !20

9.5.2 Electrical Interface Specifications

9.5.2.1 Bit rate error tolerance at electrical output port

Specifications for the bit rate error tolerance at the output port of each electrical interface in the MSE 5001 systemare listed in Table 17.

Table 17 Bit rate error tolerance at electrical output port

Electrical Interface Type Specifications (ppm)

1544kbit/s ±32

2048kbit/s ±

5034368kbit/s ±20

44736kbit/s ±20

9.5.2.2 Attenuation tolerance at the input port

Specifications for the attenuation tolerance at the input port of each electrical interface in the MSE 5001 system arelisted in Table 18.

Table 18 Attenuation tolerance at the input port

Electrical Interface Type Specifications (dB)

1544kbit/s Not specified

2048kbit/s 0 ~ 6

34368kbit/s 0 ~ 12

44736kbit/s Not specified

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9.5.2.3 Allowable frequency deviation at the input port

Specifications for the allowable frequency deviation at the input port of each electrical interface in the MSE 5001system are shown in Table 19.

Table 19 Allowable frequency deviation at the input port

Electrical Interface Type Specifications (ppm)

1544kbit/s ±50

2048kbit/s ±50

34368kbit/s ±20

44736kbit/s ±20

9.5.2.4 Anti-interference ability at the input port

As the space electromagnetic field brings interference to the transmission cable, the input port of electrical interface

is required to possess the anti-interference ability. Specifications for the anti-interference ability at the input port of each E1/T1 electrical interface in the MSE 5001 system are listed in Table 20.

Table 20 Anti-interference ability at the input port

Electrical Interface Type Specifications (SNR*)

2048kbit/s ≥18dB

1544kbit/s ≥18dB

34768kbit/s ≥20dB

SNR:Signal Noise Ratio

9.5.3 Clock Timing and Synchronization

9.5.3.1 Output jitter

The output jitter specifications of clock interfaces in the MSE 5001 system are listed in Table 21.

Table 21 Output jitter

Clock Interface Output Jitter (UIpp) Specifications

1 0.05

2 0.05

9.5.3.2 Output frequency accuracy of the internal oscillator in free-run mode

Specification for the output frequency accuracy of internal oscillator in free-run mode in the MSE 5001 system arelisted in Table 22.

Table 22 Clock output frequency

Clock Interface Specifications (ppm)

1 ±4.6

2 ±4.6

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9.5.3.3 Long-term phase variation (in locked mode)

The long-term phase variation is caused by the factors such as temperature and aging, which result in the gradualdeviation of the output signal of the master clock. It is often indicated by the Maximum Time Interval Error (MTIE)and Time Deviation (TDEV). Specifications for the long-term phase variation in the MSE 5001 system are listed inTable 23 and Table 24.

Table 23 Maximum time interval error

Index requirementsClock InterfaceMTIE 100s 300s 600s 1000s

1 63.39ns 79.01ns 90.76ns 100.52ns

2 63.39ns 79.01ns 90.76ns 100.52ns

Table 24 Time deviation (T DEV)

Index SpecificationsClock Interface

TDEV 100s 300s 600s 1000s1 6.4ns 6.4ns 6.4ns 6.4ns

2 6.4ns 6.4ns 6.4ns 6.4ns

9.5.4 Jitter Performance Specifications

9.5.4.1 Output jitter of the STM-1/STM-4 synchronous interface

The output jitter specifications of STM-N optical interfaces in the MSE 5001 system are listed in Table 25.

Table 25 Output jitter at S TM-N interface

Output Jitter (UIpp)

B1 (f1~f4) B2 (f3~f4)Optical InterfaceLevel

Specifications Specifications

STM-1 0.50 0.10

STM-4 0.50 0.10

9.5.4.2 Input jitter and wander tolerance of the STM-1/STM-4 interface

The input jitter tolerance specifications of STM-N interfaces in the MSE 5001 system are listed in Table 26 andTable 27.

Table 26 Input jitter tolerance at STM-1/STM-4 interface

Jitter Tolerance

Specifications. (UI)STMLevel Jitter

Frequency f1 JitterFrequency f2

JitterFrequency f3

JitterFrequency f4

STM-1 ≥1.5 ≥1.5 ≥0.15 ≥0.15

STM-4 ≥1.5 ≥1.5 ≥0.15 ≥0.15

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Table 27 Frequency adjustment column width of Jitter measurement filter

STM Level f1(kHz) f2(kHz) f3(kHz) f4(MHz)

STM-1 500 6.5 65 1.3

STM-4 1000 25 250 5

9.5.4.3 Input jitter and wander tolerance of the PDH tributary interface

Specifications for the input jitter tolerance of PDH tributary interfaces in the MSE 5001 system are listed in Table 28and Table 29.

Table 28 Input jitter tolerance at PDH tributary interface

Jitter Tolerance

Specifications (UI)TributaryRate(kbit/s)

JitterFrequency f1

JitterFrequency f2

JitterFrequency f3

JitterFrequency f4

1544 ≥5.0 ≥5.0 ≥0.1 ≥0.1

2048 ≥1.5 ≥1.5 ≥0.2 ≥0.2

34368 ≥1.5 ≥1.5 ≥0.15 ≥0.15

44736 ≥1.5 ≥1.5 ≥0.15 ≥0.15

Table 29 Jitter measurement filter frequency

Tributary Rate (kbit/s) f1(kHz) f2(kHz) f3(kHz) f4(kHz)

1544 1 - 8 40

2048 20 2.4 18 100

34368 100 1 10 800

44736 100 1 30 400

9.5.4.4 Mapping jitter at PDH tributary interface

The mapping jitter specifications of PDH tributary interfaces in the MSE 5001 system are listed in Table 30.

Table 30 Mapping jitter at PDH tributary interface

Mapping Jitter (UIpp)

SpecificationsElectrical Interface Type

B1 (f1~f4) B2 (f3~f4)

1544kbit/s 0.7 -

2048kbit/s - 0.075

34368kbit/s - 0.075

44736kbit/s 0.4 -

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9.5.4.5 Combined jitter at PDH tributary interface

The combined jitter specifications at PDH tributary interfaces in the MSE 5001 system are listed in Table 31 andTable 32.

Table 31 Combined jitter at PDH tributary interface

Reverse Polarity SinglePointer (UIpp)

Regular Pointer (UIpp)ElectricalInterface Type

B1 B2 B1 B2

1544kbit/s 1.5 - 1.5 -

2048kbit/s 0.4 0.075 0.4 0.075

34368kbit/s 0.4 0.075 0.4 0.075

44736kbit/s - - - -

Table 32 Combined jitter at PDH tributary interface

Regular Pointers with OneMissing Pointer (UIpp)

Double Pointer withReverse Polarities (UIpp)

ElectricalInterface Types

B1 B2 B1 B2

1544kbit/s 1.5 - 1.5 -

2048kbit/s 0.4 0.075 0.4 0.075

34368kbit/s 0.4 0.075 0.4 0.075

44736kbit/s - - - -

9.5.5 Electromagnetic Compatibility Test Specifications

The MSE 5001 system has been designed as per ETS EN 300386 series recommendations stipulated by theEuropean Telecommunications Standards Institute (ETSI), and has been granted by TUV Rheinland the EMCcertificate. Relevant EMC test specifications of the MSE 5001 system are listed in Table 33.

Table 33 EMC test result

Test Item Test Standard Test Result

Conducted emission EN55022 Class A Passed

Radiated emission EN55022 Class A Passed

Electrostatic discharge International ElectrotechnicalCommission (IEC)1000-4-2 (Air discharge:8kV;Contact discharge:8kV}

Passed

Immunity to radiatedelectromagnetic fields

IEC1000-4-3(10V/m) Passed

Electrical transient/burstimmunity

IEC1000-4-4 (2kV) Passed

Inject current immunity IEC1000-4-6 (3V) Passed

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9.5.6 Environmental Requirements

Environmental specifications of the MSE 5001 are listed in Table 34.

Table 34 Environmental r equirements

Environmental

requirementsItem

Temperature Humidity

Operating range of expectedperformance

0 45 10 90%

Short-term* working range -5 50 5 95%

Transportation and storage -40 70 ≤95%

*Short-term: indicates the continuous working period is not more than 72 hours, and the annual accumulatedworking period is not more than 15 days.

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9.6 Standards and Recommendations Followed

The MSE 5001 is designed according to the recommendations and standards as listed in Table 35.

Table 35 Standards and recommendations followed

Standards and

recommendations

Specification Description

G.703 Physical/electrical characteristics of hierarchical digital interfaces

G.707 Network node interface for the synchronous digital hierarchy (SDH)

G.773 Protocol suites for Q-interfaces for management of transmissionsystems

G.774.1~5 Management Information Model at the SDH NE level

G.783 Characteristics of synchronous digital hierarchy (SDH) equipmentfunctional blocks

G.784 SDH management

G.803 Architecture of transport networks based on the synchronous digitalhierarchy (SDH)

G.813 Timing characteristics of SDH equipment slave clocks

G.823 The control of jitter and wander within digital networks based on the2048kbit/s hierarchy

G.824 The control of jitter and wander within digital networks based on the1544kbit/s hierarchy

G.825 The control of jitter and wander within digital networks based on thesynchronous digital hierarchy (SDH)

G.826 Error performance parameters and objectives for international,constant bit rate digital paths at or above the primary rate

G.831 Management capabilities of transport networks based on thesynchronous digital hierarchy (SDH)

G.841 Types and characteristics of SDH network protection architectures

G.842 Interworking of SDH network protection architectures

ITU-TRecommendations,ETSI standards andother standards

G.957 Optical interfaces for equipment and systems relating to thesynchronous digital hierarchy (SDH)

G.958 Digital line systems based on the synchronous digital hierarchy for useon optical fibre cables

M.3010 Principles for a telecommunications management network

Q.811 Lower layer protocol profiles for the Q3 and X interface

Q.812 Upper layer protocol profile for the Q3 and X interface

ITU-TRecommendations,ETSI standards andother standards

G.652 Characteristics of a single-mode optical fibre cable

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10. ABBREVIATIONS

Abbreviations Explanation

ADM Add/Drop Multiplexer

APS Automatic Protection Switching

BER Bit Error Rate

BML Business Management Layer

CRC Cyclic Redundancy Check

DC Direct Current

DCC Data Communication Channel

DWDM Dense Wavelength Division Multiplexing

ECC Embedded Control Channel

EMC Electromagnetic Compatibility

EMI Electromagnetic Interference

EML Element Management Layer

ETS European Telecommunications Standards

ETSI European Telecommunications Standards Institute;

HDLC High-level Data Link Control;

IEC International Electrotechnical Commission

IEEE Institute of Electrical and Electronics Engineers

IGMP Internet Group Management Protocol

ITU-T International Telecommunication Union - Telecommunication Standardisation Sector

LAPS Link Access Procedure-SDH

LPT Link pass-through

MAC Medium access control

MCF Message Communication Function

MLM Multi-Longitudinal Mode (laser)

MSE Multi-Service Equipment

MSP Multiplex Section Protection

MTIE Maximum Time Interval Error

NA Not Applicable

NE Network Element

NEL Network Element Layer

NM Network Management

NML Network Management Layer NMS Network Management System

OAM Operation Administration and Maintenance

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Abbreviations Explanation

PCM Pulse-Code Modulation

PDH Plesiochronous Digital Hierarchy

PP Path Protection

RMS Root-Mean-Square

SCC System Control & Communication

SDH Synchronous Digital Hierarchy

SEMF Synchronous Equipment Management Function

SLM Single Longitudinal Mode

SML Service Management Layer

SNCP Sub-Network Connection Protection

SNR Signal Noise Ratio (S/N)SSM Synchronization Status Marker

STM Synchronous Transfer Mode

STP Spanning Tree Protocol

TDEV Time Deviation

TM Terminal Multiplex

TMN Telecommunications Management Network

TMS Telecommunications Management System

EPS Tributary Protection Switching

VC Virtual Container

VLAN Virtual Local Area Network

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