Training Center Zhongxing Telecom Pakistan (Pvt.) Ltd

Training Center

Zhongxing Telecom Pakistan (Pvt.) Ltd

System Architecture of ZXJ10 System Architecture of ZXJ10 (V10.0) (V10.0)

AgendaAgenda

Overall System Structure

Peripheral Switching Module (PSM)

Remote Switching Module (RSM)

Remote Subscriber Unit (RSU)

Overall System StructureOverall System Structure

SNM RSM RSU

PSM RSU MP

PSMPSM

RSM

RSU

TCP/IP

OMM

MSM

Switching Network Module (SNM)

Message Switching Module (MSM)

Operation and Maintenance Module (OMM)

Peripheral Switching Module (PSM)

Remote Switching Module (RSM)

Central Module



PSM forms an independent exchange

PSM 2Mb/s

No.7/R2To superior office

Overall system structureOverall system structure

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

Overall system structureOverall system structure ---- ---- feature of the ZXJ10 switch(5/7)

-----the multi-module forms an exchange

Central module

PSM

RSU

1-level

2-level

3-level

RSM

RSURSMRSM

PSM

RSM


-----the multi-module forms an exchange

PSM access way ： Fiber Bus Interface (FBI ） board

RSM access Way: Digital Trunk Interface (DTI) board

Optical Digital Trunk (ODT) board

built-in SDH


Each processor of the module can control only part of the resources, and execute part of the switching system functions

Peripheral Switching Module(PSM)Peripheral Switching Module(PSM)

Peripheral Switching Module(PSM)Peripheral Switching Module(PSM)--------Main function of the 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

Control

cabinet #0

Subscriber

cabinet #1

Subscriber

cabinet #2

PSM cabinets

Subscriber

cabinet #3

Subscriber

cabinet #4

Peripheral Switching Module(PSM)Peripheral Switching Module(PSM)---- ---- Arrangement diagram of PSM module rack

#1 #2 #3 #4 #5

BDT BSLC1 BSLC1 BSLC1 BSLC1

BDT BSLC0 BSLC0 BSLC0 BSLC0

BCTL BSLC1 BSLC1 BSLC1 BSLC1

BNET BSLC0 BSLC0 BSLC0 BSLC0

BSLC1 BSLC1 BSLC1 BSLC1 BSLC1

BSLC0 BSLC0 BSLC0 BSLC0 BSLC0

the 6th layer

the 5th layer

the 4th layer

the 3rd layer

the 2nd layer

the 1st layer

Peripheral Switching Module(PSM)Peripheral Switching Module(PSM)---- ---- 8k Switch module

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27POWB

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

ASIG

ASIG

POWB

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

6

5

BDT

BDT

4

BCTL

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

3

BNET

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

2

BSLC

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

1

BSLC

POWB

CKI

SYCK

SYCK

DSN

DSN

DSNI

DSNI

DSNI

DSNI

DSNI

D SNI

DSNI

DSNI

FBI

FBI

POWB

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

POWB

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

ASIG

ASIG

POWB

POWB

SMEM

MP

COMM

PEPD

POWB

MON

MP

COMM

COMM

COMM

COMM

COMM

POWA

SLC

POWA

SPI

SPI

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

POWA

SLC

POWA

MTT

SP

SP

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

1 2 3 4 5 6 7 8 9 10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

POWERB

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

POWERB

POWERB

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

ASIG

ASIG

ASIG

ASIG

POWERB

POWERB

SMEM

MP

MPMP

MPMP

MPPP

MPPP

MPPP

MPPP

MPPP

MPPP

STB

STB

STB

V5

PEPD

MONI

POWERB

POWERB

CKI

SYCK

SYCK

DSN

DSN

DSNICTL

DSNICTL

DSNI

DSNI

DSNI

DSNI

DSNI

DSNI

FBI

FBI

POWERB

POWERA

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SPI

SPI

POWERA

POWERA

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

MTT

SP

SP

POWERA

MP

1 2 3 4 5 6 7 8 9 10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

POWERA

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SPI

SPI

POWERA

POWERA

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

MTT

SP

SP

POWERA

POWERA

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SPI

SPI

POWERA

POWERA

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

MTT

SP

SP

POWERA

POWERA

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SPI

SPI

POWERA

POWERA

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

MTT

SP

SP

POWERA

Peripheral Switching Module(PSM)Peripheral Switching Module(PSM)---- ---- Structure of the PSM(1/6)

×

Digital trunk unit

Subscriber unit

MFC

DTMF

TONE

8Mb/s

FBI SNM

COMM COMMV5.2No.7

16*8Mb/s

MP0 MP1

2 Mb/s

Signaling unit

2Mb/s

Switching unit

8K 8K


PSM consists of the following basic parts:

Switching unit

Subscriber unit

Digital trunk unit

Analog signaling unit

Control part

Synchronization part


1 2 3 4 5 6 7 8 9 10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

POWB

CKI

SYCK

SYCK

DSN

DSN

DSNI

BCTL

DSNI

BCTL

DSNI

DSNI

DSNI

DSNI

DSNI

DSNI

FBI

FBI

POWB

Switching network unit

standby

active

working

workingactive

standby

Working mode:

active/standby

MP/DSN /DSNI-SP


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


Switching Network in PSM 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;



T networkunit

……

…...

……

…...

012

31

63

6261

32

64 bi-directional HW at 8Mb/s(128TS)

a 8K×8K T network

Peripheral Switching Module(PSM)Peripheral Switching Module(PSM)---- ---- HWs distribution of DSN in PSM(1/4)

2 DSN board in a PSM

Working mode :active/standby

Each DSN board is a time division non-blocking switching network

with single T structure

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


DSNDSN

0123456

1819

Inter-module connection

63

62

202122

6061

Message communication

Connected with various units

Self-looping testing

Standby HW line


HW0~3 4HW used for message communication

HW4-19 16HW used for inter-module connections

HW20-61 42HW

HW62usually a standby HW line, though it can also be for communication between units

used for self-looping testingHW63

1HW

1HW

SN. Function

Used for various unit connection

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;


Dual-channel structure

the voice channel and the message channel are

separated .they go through the different HWs

FBI

DSNI

DSNI

DSN

DSNI

DSNI

FBI

Total 42 HW

lines （ HW20-

HW61 ） to various

function units

To central SNM network or

other module （ HW4-

HW16 ）

16*8M

8M HW*16 lines

8M HW*16 lines

8M HW*16 linesDSN

T-NET

16*8M

16*8M

DSNI

DSNI

8M HW*10 lines10*8M

DSNI

DSNI

4*8M COMM

COMM

2MHW

2MHW

Total 4 HW lines

(HW0~HW3) to

COMM board

Peripheral Switching Module(PSM)Peripheral Switching Module(PSM)---- ---- Structure of the PSM

DSNI(digital switching network interface board)

Classification:

An interface of MP level (MP-T network)

An interface of SP level (SP –T network)


DSNI-C(digital switching network interface board)

Function: An interface of MP level (MP-T network)

It drives the various signals transmitted between MP and T network.

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—T network


DSNI-S(digital switching network interface board) Function: An interface of SP level (SP –T Network)

It drives transmission between function unit and T network.

No data rate conversion

A pair of DSNI boards can handle 16 HWs.

SP—DSNI--T network


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. These enable the PCM wire signals in T network to be correctly.

Note : When HW lines 4~19 are used for intra-module unit

connection,the FBI board must be replaced by the DSNI.


Subscriber line unit

1 2 3 4 5 6 7 8 9 10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

POWA

SLC1

SLC2

SLC3

SLC4

SLC5

SLC6

SLC7

SLC8

SLC9

SLC10

SLC11

SLC12

SLC13

SLC14

SLC15

SLC16

SLC17

SLC18

SLC19

SLC20

SPI

SPI

POWA

POWA

SLC1

SLC2

SLC3

SLC4

SLC5

SLC6

SLC7

SLC8

SLC9

SLC10

SLC11

SLC12

SLC13

SLC14

SLC15

SLC16

SLC17

SLC18

SLC19

SLC20

MTT

SP

SP

POWA


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


Subscriber line unit

Connection with T-network and communication port

One subscriber unit occupies 2 HW,2 comm. ports.

The unit has realized dynamic time slot distribution ， with a line concentration

ratio of from 1:1 to 4:1.

SLC SLC SLC SLC(MTT)

……

8Mb/sHW

8Mb/sHW

LC level

switchingNetwork

(SP)

To PSM switchingnetwork

8Mb/s


Digital Trunk unit

1 2 3 4 5 6 7 8 9 10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

POWB

DTI1

DTI2

DTI3

DTI4

DTI5

DTI 6

DTI7

DTI8

DTI9

DTI10

DTI11

DTI12

DTI13

DTI14

DTI15

DTI16

POWB


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.

PCM 2Mb/s

AA DTDT BBDTDT


Digital Trunk unit

One DT unit only has one DTI board

One DTI board has 4 PCM (sub-unit)

DTI

PCM1

PCM2Provide 120 digital trunk subscribers for every board

PCM3

PCM4


Digital Trunk unit

Classification ：

1 ） CAS DTI 2 ） CCS DTI

3 ） connection between modules

4 ） connect with RLM 5 ） ISDN 30B+D

Connection with T-network and communication port

One digital trunk unit occupies 1 HW,1 comm. port.


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



DTMF:Dual tone Multi-frequency receiver /sender

It is used for receiving the dialed numbers sent by a DTMF

subscriber phone and detecting the sent DTMF signals.



MFC: Multi-frequency compelled unit

It handles the receiving and sending of inter-exchange MFC

register signals.



TONE:Signal tone unit It can provide various tones for the call services of switching

system.

CID:caller identification


Analog signaling unit Each ASIG provides 120 channels.

One ASIG board is divided into 2 sub-units,to be separately configured

DSP1#

DSP2#


Analog signaling unit Appendix ： 860Asig Asig-1:with all the chip

TONE/DTMF/MFC/CID/CONF + TONE/DTMF/MFC/CID /CONF

Asig-2:without FLASH and conf. Chip for the two DSP DTMF/MFC/CID + DTMF/MFC/CID

Asig-3:with FLASH only for DSP1 ， without conf.chip for all TONE/DTMF/MFC/CID + DTMF/MFC/CID

DSP1#

DSP2#


Control part

POWB

SMEM

M P

M P

COMM1

C O M M2

C O M M3

C O M M4

C O M M5

C O M M6

COMM7

COMM8

STB

STB

STB

V5

PEPD

M ON

POWB

1 2 3 4 5 6 7 8 9 10 11121314151617181920 21222324252627


Control part Constitution a pair of active and standby MP

shared memory board(SMEM)

communication board(COMM)

monitor board(MON)

peripheral environment(PEPD)


Clock synchronous part

Retrieving the reference clock from the superior exchange(DTI or

FBI) ,it provides synchronization timing signals

SYCK CKISYCK

Working mode:Active/standby


Clock synchronous part

Function ： according to the reference clock to generate the synchronous clock for the module or system(PSM).

SYCK(synchronization oscillator)

•2 SYCK boards

•1 CKI board

CKI

Function ： provide 2.048MB/S,2.048MHZ(Bits) interface for SYCK.

Synchronization clock in PSMSynchronization clock in PSM

CKI

SYCK

DSNI

(MP)

8MHz/16MHz/8KHz

DSNI

SP)

FBI

DSN

16MHz/8kHz 8MHz/8KHz

MP

COMM

MON

4MHz/8KHz

SLU

RSU

DTU

ASIG

BITS

External clock signal (DTI)


2-level control mode in the PSM

MPMP

MON

Units in module Units in module

PEPDMPPPMPPP

Some boardsSome boards Detect the environments

Peripheral Switching Module(PSM)Peripheral Switching Module(PSM)---- ---- The Message Channel

COMM Board

Function Classify:

MP-MP—inter-module communication board

MP-SP—intra-module communication board

NO.7signaling board

V5 signaling board

U interface board(ISDN operator station)


COMM Board

Note:MP-MP and MP-SP common ground

Appearance in pairs

Each pair can handle 32 channels


COMM Board

MP-MP:COMM1/COMM2

Handle 8 modules message.(not used in single module)


COMM Board MP-PP:COMM3/COMM4

--Control T network connection 8 pair of TSs

--Function units message connection: 24 pair of TSs

Note:subscriber unit:2 pair of TSs

digital trunk unit:1 pair of TS

analog signaling unit: 1pair of TS


MP control T-network

MP

MP

COMM

COMM

Switching network

Switching network

256Kb/s

256Kb/s

256Kb/s

256Kb/s


The communication between the COMM board and MP

MP MP

COMMCOMM COMMCOMM COMMCOMM

COMM board exchange messages with active/standby MP by means of dual port RAMs (MON,PEPD).


The intra-module control message path passes

through the COMM and MONI board

MP

NO.7/V5 COMM MON

TNET

SP

SP

DT DTMF/

MFC/TONE

Ethernet

HDLC link

Asynchronous

serial bus

POWER 、SYCK 、 DSNI 、 FBI

NT Server


DSNI

COMM1

COMM2

DSN

HW0

HW1

HW2

HW3

DSN

HW0

HW1

HW2

HW3

DSNI

HW0HW1HW2HW3

COMM3HW12HW13

...

COMM13

...

COMM4

COMM14

HW5HW4

HW14HW15

HW16HW17HW18HW19

HW28HW29

...HW21HW20

HW30HW31

COMM5

COMM6

8M

8M

8M

8M

1M

1M1M

1M

1M1M

1M1M


T

network

T

network

FBIFBI

SLU

HW20-35SLU

HW36-51SLU

DTU

ASIG

HW52-61

DTU

DSNIDSNI

HW4-19

1*HW

1*HW

1*HW

2*HW

2*HW

20

21

60

61

DSNIDSNI

DSNIDSNI

DSNI

DSNI

COMMCOMM

COMMCOMM

COMMCOMM

COMMCOMM

COMMCOMM

COMMCOMM

COMMCOMM

MP

MP

16*2M

HW0~3


MP

C

O

M

M

DSNI

TNET

HW0

to

HW3

SNM or other PSM

function unit

DSNI

FBI


Suppose:PSM/Mp want to send message to SP

The message path:

MPCOMM DSNICTL T network

DSNISP

Peripheral Switching Module(PSM)Peripheral Switching Module(PSM)---- ---- The Voice Channel

T

network

T

network

FBIFBI

SLU

HW20-35

2*HW

SLU

HW36-51SLU

DTU

ASIG

HW52-61

DTU

DSNIDSNI

HW4-19

1*HW

1*HW

1*HW

2*HW

2*HW

20

21

60

61

DSNIDSNI

DSNIDSNI

Peripheral Switching Module(PSM)Peripheral Switching Module(PSM)---- ---- The Voice Channel

Suppose one subscriber in one SLU call another subscriber in

another SLU,how is the voice channel between the two

subscribers?

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

System structure

SNM RSM RLM

PSM

MP

PSMPSM

TCP/IP

OMM

RSM

RLM

RLM

MSM

1616K switching network moduleK switching network module

The HW lines number is doubled and the increased HW lines are

normally used to connect DT. So this module is usually used as

tandem exchange.

1616K switching network moduleK switching network module

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

6

5

B DT

BDT

4

BCTL

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27POWB

SMEM

MP

COMM

PEPD

POWB

MON

3

BNEN

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

2

BSLC

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

1

POWC

FBI

FBI

FBI

FBI

FBI

FBI

FBI

FBI

SYCK

SYCK

DSNI

DDSN

DDSN

CKI

D SNI

DSNI

DSNI

DSNI

DSNI

DSNI

DSNI

DSNI

POWC

DSNI

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

MP

COMM

COMM

COMM

COMM

COMM

POWA

SLC

POWA

SPI

SPI

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

POWA

SLC

POWA

MTT

SP

SP

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

BSLC

POWB

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

ASIG

ASIG

POWB

POWB

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

DTI

ASIG

ASIG

POWB

1616K switching network moduleK switching network module ----HW distribution of 16K switching module

FBI

FBI

FBI

FBI

FBI

FBI

FBI

FBI

DDSN

DDSN

DSNI

DSNI

DSNI

DSNI

DSNI

DSNI

DSNI

DSNI

DSNI

DSNI

HW 68-83 84-99 100-115 116-121 0-3 52-67 36-51 20-35 4-19HW 122 : self-loop HW 123-127 : default to ASIG (from DDSN directly ) ， and can also share with SP etc.

HW distribution of 16K switching module

2 3 4 5 6 7 8 9 15 16 17 18 19 20 21 22 23 24 25 26

( with backboard of BNEN )

1616K switching network moduleK switching network module ----HW distribution of 16K switching module

17 ， 18 slots HW0-HW3


23 ， 24 slots HW20-HW35

21 ， 22 slots HW36-HW51

19 ， 20 slots HW52-HW67



6 ， 7 slots HW100-HW115

8 ， 9 slots HW116-HW121

HW123-HW127 : come out directly from DDSN,default to ASIG

HW122 : self-looping

Compact switching module(4k)Compact switching module(4k)

Typical configuration ： single processor cabinet ： 2400L+600DT

double processor cabinet ： 5280L+600DT

Network principle ：1.Form exchanges independently ；

2.Used as peripheral remote modules to access the central module. Normally, they are not used as nearby module,but merely as network terminal nodes.

3.Normally not carry any lower level switching modules further down,or RLM(unless there are enough trunks)

Compact switching moduleCompact switching module

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6

5

BCTN

BSLC

4

BSLC

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3

2

1

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POWB

SMEM

MP

COMM

COMM

TNET

PEPD

MON

COMM

TNET

ASIG

ASIG

ASIG

DTI

DTI

DTI

DTI

POWB

DTI

MP

POWA

SLC

POWA

MTT

SP

SP

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

POWA

SLC

POWA

SPI

SPI

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

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COMM

COMM

COMM

POWA

SLC

POWA

MTT

SP

SP

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

POWA

SLC

POWA

MTT

SP

SP

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

POWA

SLC

POWA

SPI

SPI

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

BSLC

BSLC

BSLC

Compact switching module----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 ）

Compact switching moduleCompact switching module--------Hws distribution

HW 0-3 4 5 6 7 8 9 10-13 14-17

MP

..

ASIG

ASIG

DT

ODT

/DT

ODT

/DT

ASIG

....

DT

DT

Hw 0,2 for communication

Hw 1,3 idle

....

Hw 18-29 for SP

Compact switching moduleCompact switching module--------Hws distribution

T network 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

RSURSU

RSU: Remote Subscriber Unit

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.

RSURSU

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6

5

BRSUBSLC

4

BSLC

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3

2

1

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POWB

REPD

REPD

R DT

R DT

R O DT

POWB

R DT

R DT

POWA

SLC

POWA

MTT

SP

SP

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

POWA

SLC

POWA

SPI

SPI

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

SLC

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RSU---- RSU---- Instruction of RSU

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.

RSU---- RSU---- Question

Q1.what will be paid attention to when using RODT to connect RSU?

1) Add “RODT” when configuring the transmission shelf for RSU;

2) For the RODT of host office, at maximum 2 8M HW can be configured for every board;

3) When configuring subscriber unit of RSU, the corresponding HW line connection between host office and RSU can be created;

4) If in step2 ,more than 2 8M HW are assigned,the step 3 can not continue.

Concrete Configuration of PSMConcrete Configuration of PSM

The Concrete Configuration of PSMThe Concrete Configuration of PSM---- ---- The circuit description

Format:

Module number_rack number_shelf number_board

Position number_circuit serial number


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


Shelf number:

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

Board position number: 1# ~ #27

Circuit serial number: 0#~

SLC:0~23

DTI: 0~127


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


Digital trunk :

Each DTI board :4 PCM

(4*2Mb/s ports=120 voice channel)

The structure of background networkThe structure of background network

The structure of background network(1/3)The structure of background network(1/3)

MP NT Server

TCP/IP protoc

ol NT Client NT Client

..

NT Client NT Client NT Client

。。。

router

DDNPSTN/PSPDN

MP


The network contain 3 types of nodes:

Foreground active/standby MP

Background servers(server)

Background maintenance terminal(clients)

MP (foreground ) connects with background by the

Ethernet.

It uses the HUB to connect each other.

The communication protocol is TCP/IP.

The operation system of Sever and Client is WINDOWS NT


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.

Training Center

Zhongxing Telecom Pakistan (Pvt.) Ltd

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Training Center Zhongxing Telecom Pakistan (Pvt.) Ltd