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SYSTEM ARCHITECTURE OF ZXJ10(V10.0). OVERALL SYSTEM STRUCTURE. MP. THE FEATURES OF THE ZXJ10 SWITCH. RSM. MSM. RLM. PSM. PSM. SNM. RSM. RLM. PSM. RLM. OMM. TCP/IP. Network Diagram. FOREGROUND. RSM. MSM. PSM. PSM. RLM. SNM. RSM. RLM. PSM. RLM. MP. TCP/IP. BACKGROUND.

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slide4

MP

THE FEATURES OF THE ZXJ10 SWITCH

RSM

MSM

RLM

PSM

PSM

SNM

RSM

RLM

PSM

RLM

OMM

TCP/IP

network diagram
Network Diagram

FOREGROUND

RSM

MSM

PSM

PSM

RLM

SNM

RSM

RLM

PSM

RLM

MP

TCP/IP

BACKGROUND

OMM

the structure of background network
The Structure of Background Network

WIN2000 Server

MP

MP

Protocol

TCP/IP

Router

Client

Client

..

DDN

PSTN/PSPDN

Client

Client

Client

slide7

THE FEATURES OF THE ZXJ10 SWITCH

MODULAR SYSTEM STRUCTURE

  • Switching Network Module (SNM)
  • Message Switching Module(MSM)
  • Operation and Maintenance Module (OMM)
  • Peripheral Switching Module (PSM)
  • Remote Switching Module (RSM)

Central module

slide8

THE FEATURES OF THE ZXJ10 SWITCH

-----The Multi-module Forms an Exchange.

With a 2-level or 3-lever Networking Capability,

Module Can Further Carry Modules.

  • Two Cases:
  • Level -1 Is Central Module
  • Level -1 Is PSM
slide9

THE FEATURES OF THE ZXJ10 SWITCH

----CENTRAL MODULE.

Central module

1-level

PSM

RSM

RSM

2-level

PSM

RSM

RSM

3-level

RSM

RLM

slide10

THE FEATURES OF THE ZXJ10 SWITCH

----A SINGLE PSM

1-level

PSM

RLM

2-level

RSM

PSM

3-level

RSM

RSM

RLM

RLM

RLM

slide11

THE FEATURES OF THE ZXJ10 SWITCH

PSM Access Way Fiber Bus Interface (FBI board

RSM Access Way Digital Trunk Interface (DTI) Board

Optical Digital Trunk(ODT) Board

Built-in SDH

slide12

THE FEATURES OF THE ZXJ10 SWITCH

Fully Distributed Control Mode

Units have their own separate control modules while the MP supervises the overall control of all the different units.

slide14

MAIN FUNCTIONS OF A PSM

In the Single Modules Office ,It Performs the PSTN,ISDN Subscriber Access and Call Handling,

In a Multi-module Office ,It Is Connected Into the Central Module As One of the Module Offices .

slide15

Control cabinet #0

Subscriber cabinet #1

Subscriber cabinet #2

Subscriber cabinet #3

Subscriber cabinet #4

PSM cabinets

8k switching module

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8K SWITCHING MODULE

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slide17

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slide18

THE STRUCTURE OF THE PSM

  • PSM Consists of the Following Basic Parts:
  • Switching Unit
  • Subscriber Unit
  • Digital Trunk Unit
  • Analog Signaling Unit
  • Control Part
  • Synchronization Part
slide19

THE STRUCTURE OF THE PSM

Control part

  • A Pair of Active and Standby MP
  • Shared Memory Board(SMEM)
  • Communication Board(COMM)
  • Monitor Board(MON)
  • Peripheral Environment (PEPD)
slide20

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THE STRUCTURE OF THE PSM

Subscriber line unit

slide21

THE STRUCTURE OF THE PSM

Subscriber line unit

  • 2 SP:Active/standby
  • 2 SPI(SP interface);active/standby
  • MTT(multi-task test board):used for subscriber line test
  • Max.40 SLC(subscriber line circuit)
  • Each SLC board can provides 24 subscriber lines
  • A subscriber unit occupies 2 HWs and 2 Comm. ports
slide22

THE STRUCTURE OF THE PSM

Digital trunk unit

slide23

THE STRUCTURE OF THE PSM

Digital trunk unit

The Digital Trunk Unit Is the Interface Unit Between the Digital Switching System or Between Digital SPC Switches and Digital Transmission Devices.

A

B

DT

DT

PCM 2Mb/s

slide24

THE STRUCTURE OF THE PSM

Digital trunk unit

  • One DT unit only has one DTI board
  • One DTI board has 4 PCM (sub-unit)

DTI

PCM1

Provide 120 digital trunk subscribers for every board

PCM2

PCM3

PCM4

slide25

THE STRUCTURE OF THE PSM

Analog signaling unit

  • One Analog signaling unit only has one ASIG board.
  • ASIG board can be configured as
  • ---DTMF function
  • ---MFC function
  • ---TONE function
  • ---CID function
  • ---Conf. function
slide26

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THE STRUCTURE OF THE PSM

Switching Network Layer

slide27

THE STRUCTURE OF THE PSM

Switching Network Unit

DSN Unit Can Handle Time Slot Switching of the Voice Channel. And Control Message Channel

Constitution:2 DSN boards

DSN

DSN

Work mode:active /standby

slide28

DIGITAL SWITCHING NETWORK

  • Main Function:
  • Performing Voice Channel Connection Switching of Subscribers Inside the Module;
  • Interconnected With Central Switching Network Module to Realize Inter-module Voice Channel Connection;
  • For Mp to Set up Message Switching Connection and Communication Via Semi-permanent Connections With Function Units;
slide29

HWS DISTRIBUTION OF DSN IN PSM

  • Each DSN board has 64 HWS.
  • A HW bus rate is 8Mb/s(128ts)
  • Each DSN board has a capacity of 8K*8K time slots
slide30

HWS DISTRIBUTION IN PSM

Message communication

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Connected with various units

Inter-module connection

60

61

Standby HW line

62

63

Self-looping testing

slide31

Working Mode:

Active/Standby

standby

active

working

active

standby

MP/DSN /DSNI-SP

working

slide32

HWS DISTRIBUTION IN PSM

Those Starting HW20 Upward Are Used for Connection With Subscriber Units. Each Subscriber Unit Seizes Two HW Lines;

Those Starting Hw61 Downward Are Used for Connection With Digital Trunks and Analog Signaling Units. Each Unit Seizes One HW Line;

Function

SN.

HW0~3

4HW

Used for Message Communication

HW4-19

16HW

Used For Inter-module Connections

HW20-61

42HW

Used for Various Unit Connection

Usually a Standby HW Line, Though It Can Also Be for Communication Between Units

HW62

1HW

HW63

1HW

Used for Self-looping Testing

slide33

The Message Channel

SNM or other PSM

FBI

DSNIC

HW0至HW3

MP

C

O

M

M

DSN

DSNI-S

function unit

slide34

DSNI-C (DIGITAL SWITCHING NETWORK INTERFACE BOARD)

Function:

An interface of MP level (MP- DSN)

  • It Drives the Various Signals Transmitted Between MP and DSN.
  • It Performs the Conversion of 8mb/s Data Stream and 2mb/s Data Stream.
  • A Pair of DSNI Boards Handle 4 HWs.

MP--COMM--DSNI-C--DSN

slide35

DSNI-S (DIGITAL SWITCHING NETWORK INTERFACE BOARD)

Function:

An interface of SP level (SP – DSN)

  • It Drives Transmission Between Function Unit and DSN.
  • No Data Rate Conversion
  • A Pair of DSNI Boards Can Handle 16 HWs.

SP--DSNI-S--DSN

slide36

THE VOICE CHANNEL

Suppose one subscriber in one SLU call another subscriber in another SLU,the voice channel will be as follows.

SP---DSNI---DSN(T-network)---DSNI---SP

slide37

FBI (Fiber Bus Interface)

It Applies Synchronous Multiplexing Technique and Optical Fiber Technique to Implement the Interconnections of Modules .

It Uses Two Optical Fiber Lines to Transmit up to 16 Lines of 8mb/s PCM Signals

It Can Reduce Connection Wires and Increase Anti-interference Ability of the System, and to Reduce Mutual Cross Talks Among Wires.

slide38

THE STRUCTURE OF THE PSM

Clock synchronous part

Retrieving the reference clock from the superior exchange(DTI or FBI) ,it provides synchronization timing signals

SYCK

SYCK

CKI

Working mode:Active/standby

slide39

THE STRUCTURE OF THE PSM

Clock synchronous unit

  • 2 SYCK boards
  • 1 CKI board

SYCK(synchronization oscillator)

According to the reference clock generates the synchronous clock for the module or system(PSM).

slide40

THE STRUCTURE OF THE PSM

Clock synchronous unit

CKI

Function is to provide generate system clock in case of reference failure for SYCK.

slide41

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4k Switch module

slide42

E1:

PCM1

PCM2

PCM3

PCM4

Compact switching module

Flexible configuration

COMM board

9,10 slots: Inter-module communication

11,12 slots: Intra-module communication

13,14 slots: NO.7,V5 boards

ASIG board:

19-21 slots: Can share trunk slots

DT board:

22-26 slots:

25,26 slots can be shared by DTI and ODT.

slide43

..

..

..

..

..

ASIG

DT

DT

DT

ODT

/DT

ODT

/DT

Hw 0,2 for communication

Hw 1,3 idle

Hw 18-29 for SP

ASIG

MP

ASIG

HW0-3 4 5 6 7 8 9 10-13 14-17

slide44

Compact switching module

Flexible configuration:

T Net & HW lines

HW0--HW2: Used for communication

HW1--HW3: Idle

HW4-HW6: Distributed to ASIG

HW7-HW9: Distributed to DT

HW10-HW17: Distributed to ODT

HW18-HW29: Distributed to SP

HW30-HW31: Used for self-looping

slide45

RLM(RSU)

  • RLM:Remote subscriber line module , RSU
  • It is a subscriber unit used in a remote subscriber group .
  • Each RLM is usually restricted to with in 960 subscriber lines.
  • The way of connection between the PSM and RLM can be RDT board or RODT board.
slide46

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RSU

slide47

MTT (multi-task test)board:

---used also as the DTMF number receiver and TONE voice resource.

REPD board:

----control the power board and ODT board

----clock synchronization for RLM.

slide49

THE CIRCUIT DESCRIPTION

Format:

Module number_rack number_shelf number_board position number_circuit serial number

slide50

The circuit description

Module number:

PSM form an single module: #2

Rack number:

1 control rack and 1~4 subscriber rack.

The control rack number:#1

The subscriber rack number:#2~#5

slide51

The circuit description

Shelf number:

1# ~ 6# (starting from the bottom shelf )

Board position number:

1# ~ #27

Circuit serial number:

0#~

SLC:0~23

DTI: 0~127

slide52

The circuit description

Subscriber line :

  • Each analog subscriber board:24 subscriber circuits
  • Each shelf;20 ASLC board
  • Each subscriber unit :2 shelf
  • Each subscriber unit:40*24=960 subscriber lines
  • Each PSM: 13 subscriber units,
  • 13*960=12480 subscriber lines
slide53

The circuit description

Digital trunk :

  • Each DTI board :4 PCM
  • (4*2Mb/s ports=120 voice channel)
slide55

NT Server

MP

MP

protocol

TCP/IP

router

NT Client

NT Client

..

DDN

PSTN/PSPDN

NT Client

NT Client

NT Client

slide56

The structure of background network

  • The Network Contain 3 Types of Nodes:
  • Foreground Active/standby MP
  • Background Servers(server)
  • Background Maintenance Terminal(clients)
slide57

The structure of background network

  • MP (foreground ) connects with background by the Ethernet.
  • It uses the HUB to connect each other.
  • The communication protocol is TCP/IP.
  • The operating system of Sever and Client is WINDOWS NT
slide58

The structure of background network

  • Each MP and the computer in background have a IP address respectively.
  • The arrangement is as follows:
  • 1~128 identify the active/standby Mps of the 64 modules(MP nodes)
  • 129~133are background NT Server nodes
  • 134~187 are background Client nodes
  • 254 is for the specific alarm panel.
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