System Architecture of ZXJ10 (V10.
0)
Training Center
Zhongxing Telecom Pakistan (Pvt.) Ltd
Agenda
Overall System Structure
Peripheral Switching Module (PSM)
Remote Switching Module (RSM)
Remote Subscriber Unit (RSU)
Overall System Structure
RSM
MSM
RSU PSM PSM
SNM RSM RSU
MP PSM RSU
OMM
TCP/IP
Overall System Structure
Switching Network Module (SNM) Central
Module
Message Switching Module (MSM)
Operation and Maintenance Module (OMM)
Peripheral Switching Module (PSM)
Remote Switching Module (RSM)
Overall System Structure
PSM forms an independent exchange
2Mb/s
PSM To superior office
No.7/R2
Overall 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 structure
---- feature of the ZXJ10 switch(5/7)
-----the multi-module forms an exchange
Central
1-level
module
PSM PSM RSM 2-level
RSM RSM RSM
RSU 3-level
RSU
Overall system structure
---- feature of the ZXJ10 switch(6/7)
-----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
Overall system structure
---- feature of the ZXJ10 switch(7/7)
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)
----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 Subscriber Subscriber Subscriber Subscriber
cabinet #0 cabinet #1 cabinet #2 cabinet #3 cabinet #4
PSM cabinets
Peripheral Switching Module(PSM)
---- Arrangement diagram of PSM module rack
#1 #2 #3 #4 #5
BDT BSLC1 BSLC1 BSLC1 BSLC1
the 6th layer
BDT BSLC0 BSLC0 BSLC0 BSLC0 the 5th layer
BCTL BSLC1 BSLC1 BSLC1 BSLC1
the 4th layer
BNET BSLC0 BSLC0 BSLC0 BSLC0
the 3rd layer
BSLC1 BSLC1 BSLC1 BSLC1 BSLC1 the 2nd layer
BSLC0 BSLC0 BSLC0 BSLC0 BSLC0
the 1st layer
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 27
P A A P
D D D D D D D D D D D D D D B
O S S O
6 W
T T T T T T T T T T T T T T
I I W D
I I I I I I I I I I I I I I T
B G G B
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
P A A P B
D D D D D D D D D D D D D D
O S S O D
5 T T T T T T T T T T T T T T
W I I W T
I I I I I I I I I I I I I I
B G G B
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
P S C C C C C C P P B
M C
4 O M O O O O O O E O
MP MP O T
W E M M M M M M P W
N L
B M M M M M M M D B
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
P S S D D D D D D D D P B
C D D F F N
O Y Y S S S S S S S S O
3 K S S B B E
W C C N N N N N N N N W
I N N I I T
B K K I I I I I I I I B
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
P P B
S S S S S S S S S S S S S S S S S S S S S S S
O O
2 L L L L L L L L L L L L L L L L L L L L P P L
W W
C C C C C C C C C C C C C C C C C C C C I I C
A A
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
P P B
S S S S S S S S S S S S S S S S S S S S M S S S
1 O O
L L L L L L L L L L L L L L L L L L L L T P P L
W W
C C C C C C C C C C C C C C C C C C C C T C
A A
1 2 3 4 5 6 7 8 9 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7
P D D D D D D D D D D D D D D D D P
O T T T T T T T T T T T T T T T T O
W W
E
I I I I I I I I I I I I I I I I E
R R
B B
P D D D D D D D D D D D D A A A A P
O T T T T T T T T T T T T S S S S O
W W
E
I I I I I I I I I I I I I I I I E
R G G G G R
B B
P S M M M M M M M M S S S V P M P
O M P P P P P P P P T T T 5 E O O
W MP W
E
E MP M M P P P P P P B B B P N E
R M P P P P P P P P D I R
B B
P C S S D D D D D D D D D D F F P
O K Y Y S S S S S S S S S S B B O
W N N W
E
I C C N N I I
N N N N N N I I E
R K K C C I I I I I I R
B T T B
P L L P
S S S S S S S S S S S S S S S S S S S S S S
O L L L L L L L L L L L L L L L L L L L L P P O
W W
E
C C C C C C C C C C C C C C C C C C C C I I E
R R
A A
P S S S S S S S S S S S S S S S S S S S S M S S P
O L L L L L L L L L L L L L L L L L L L L T P P O
W W
E
C C C C C C C C C C C C C C C C C C C C T E
R R
A A
1 2 3 4 5 6 7 8 9 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7
P S S S S S S S S S S S S S S S S S S S S S S P
O L L L L L L L L L L L L L L L L L L L L P P O
W W
E
C C C C C C C C C C C C C C C C C C C C I I E
R R
A A
P S S S S S S S S S S S S S S S S S S S S M S S P
O L L L L L L L L L L L L L L L L L L L L T P P O
W W
E
C C C C C C C C C C C C C C C C C C C C T E
R R
A A
P S S S S S S S S S S S S S S S S S S S S S S P
O L L L L L L L L L L L L L L L L L L L L P P O
W W
E
C C C C C C C C C C C C C C C C C C C C I I E
R R
A A
P S S S S S S S S S S S S S S S S S S S S M S S P
O L L L L L L L L L L L L L L L L L L L L T P P O
W W
E
C C C C C C C C C C C C C C C C C C C C T E
R R
A A
P S S S S S S S S S S S S S S S S S S S S S S P
O L L L L L L L L L L L L L L L L L L L L P P O
W W
E
C C C C C C C C C C C C C C C C C C C C I I E
R R
A A
P S S S S S S S S S S S S S S S S S S S S M S S P
O L L L L L L L L L L L L L L L L L L L L T P P O
W W
E
C C C C C C C C C C C C C C C C C C C C T E
R R
A A
Peripheral Switching Module(PSM)
---- Structure of the PSM(1/6)
8Mb/s
Digital trunk unit
Subscriber unit 16*8Mb/s
FBI SNM
Switching unit
Signaling unit
MFC 8K × 8K
DTMF
TONE
V5.2 2Mb/s 2Mb/s
No.7 COMM COMM
MP0 MP1
Peripheral Switching Module(PSM)
---- Structure of the PSM(2/6)
PSM consists of the following basic parts:
Switching unit
Subscriber unit
Digital trunk unit
Analog signaling unit
Control part
Synchronization part
Peripheral Switching Module(PSM)
---- Structure of the PSM(3/6)
Switching network unit
1 2 3 4 5 6 7 8 9 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7
P C S S D D D D D D D D D D F F P
O K Y Y S S S S S S S S S S B B O
W I C C N N N N N N N N N N I I W
B K K I I I I I I I I B
B B
C C
T T
L L
Working
mode:
active/standby
active
standby
working
standby
active
MP/DSN /DSNI-SP
working
Peripheral Switching Module(PSM)
---- Structure of the PSM(4/6)
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
Peripheral Switching Module(PSM)
---- Structure of the PSM(5/6)
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;
Peripheral Switching Module(PSM)
---- Structure of the PSM(6/6)
Switching network unit
0 63
1
2 62
61
T network
………...
………...
unit
31 32
a 8K×8K T network
64 bi-directional HW at 8Mb/s(128TS)
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
Peripheral Switching Module(PSM)
---- HWs distribution of DSN in PSM(2/4)
20
21
0 22
Message
1
communication 2
3
4
5 Connected with
6 DSN
DSN various units
Inter-module
connection
60
61
18 62 Standby HW line
19 63 Self-looping testing
Peripheral Switching Module(PSM)
---- HWs distribution of DSN in PSM(3/4)
Those starting HW20 upward are used for
connection with subscriber units. Each
subscriber unit seizes two HW lines;
SN. Function
Those starting HW61 downward are used for
connection with digital trunks and analog
HW0~3 signaling
4HW usedunit
units. Each forseizes
message communication
one HW line;
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
HW62 1HW be for communication between units
HW63 1HW used for self-looping testing
Peripheral Switching Module(PSM)
---- HWs distribution of DSN in PSM(4/4)
Dual-channel structure
the voice channel and the message channel are
separated .they go through the different HWs
2MHW
COMM
DS
DS Total 4 HW lines
NINI (HW0~HW3) to
4*8M 2MHW COMM COMM board
DS 8M HW*16 lines
DS
16*8M NINI
Total 42 HW
DSNDSN 8M HW*16 lines
DS
16*8M DS lines （ HW20-
T-NET NINI HW61 ） to various
function units
10*8M 8M HW*10 lines
DS
DS
NINI
16*8M
FBFB To central SNM network or
8M HW*16 lines
I I other module （ HW4-
HW16 ）
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)
Peripheral Switching Module(PSM)
---- Structure of the PSM
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
Peripheral Switching Module(PSM)
---- Structure of the PSM
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
Peripheral Switching Module(PSM)
---- Structure of the PSM
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.
Peripheral Switching Module(PSM)
---- Structure of the PSM
Subscriber line unit
1 2 3 4 5 6 7 8 9 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7
P S S S S S S S S S S S S S S S S S S S S S S P
O
W L L L L L L L L L L L L L L L L L L L L P P O
A C C C C C C C C C C C C C C C C C C C C I I W
1 2 3 4 5 6 7 8 9 1 1 1 1 1 1 1 1 1 1 2 A
0 1 2 3 4 5 6 7 8 9 0
P S S S S S S S S S S S S S S S S S S S S M S S P
O
W L L L L L L L L L L L L L L L L L L L L T P P O
A C C C C C C C C C C C C C C C C C C C C T W
1 2 3 4 5 6 7 8 9 1 1 1 1 1 1 1 1 1 1 2 A
0 1 2 3 4 5 6 7 8 9 0
Peripheral Switching Module(PSM)
---- 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
Peripheral Switching Module(PSM)
---- Structure of the PSM
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.
8Mb/sH W
LC leve l
8Mb/s
…… SLC switc hing
SLC SLC SLC
(MTT) Networ k To PSM sw itc hing
network
(SP)
8Mb/sH W
Peripheral Switching Module(PSM)
---- Structure of the PSM
Digital Trunk unit
1 2 3 4 5 6 7 8 9 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7
P DD D D D D D D DD D D D D D D P
O TT T T T T T T TT T T T T T T O
W I I I I I I I I I I I I I I I I W
B 1 2 3 4 5 6 7 8 9 1 1 1 1 1 1 1 B
0 1 2 3 4 5 6
Peripheral Switching Module(PSM)
---- 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.
AA DT
DT DT
DT BB
PCM 2Mb/s
Peripheral Switching Module(PSM)
---- Structure of the PSM
Digital Trunk unit
One DT unit only has one DTI board
One DTI board has 4 PCM (sub-unit)
PCM1
Provide 120 digital trunk subscribers
PCM2
for every board
DTI PCM3
PCM4
Peripheral Switching Module(PSM)
---- Structure of the PSM
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.
Peripheral Switching Module(PSM)
---- 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
Peripheral Switching Module(PSM)
---- Structure of the PSM
Analog signaling unit
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.
Peripheral Switching Module(PSM)
---- Structure of the PSM
Analog signaling unit
MFC: Multi-frequency compelled unit
It handles the receiving and sending of inter-exchange MFC
register signals.
Peripheral Switching Module(PSM)
---- Structure of the PSM
Analog signaling unit
TONE:Signal tone unit
It can provide various tones for the call services of switching
system.
CID:caller identification
Peripheral Switching Module(PSM)
---- Structure of the PSM
Analog signaling unit
Each ASIG provides 120 channels.
One ASIG board is divided into 2 sub-units,to be separately
configured
DSP2#
DSP1#
Peripheral Switching Module(PSM)
---- Structure of the PSM
Analog signaling unit DSP2#
Appendix ： 860Asig
DSP1#
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
Peripheral Switching Module(PSM)
---- Structure of the PSM
Control part
1 2 3 4 5 6 7 8 9 10 11121314151617181920 21222324252627
P S M M C C C C C C C C SSSV P M P
O M P P O O O O O O O O TTT5 E O O
W E M M M M M M M M BBB P N W
B M M M M M M M M M D B
1 2 3 4 5 6 7 8
Peripheral Switching Module(PSM)
---- Structure of the PSM
Control part
Constitution
a pair of active and standby MP
shared memory board(SMEM)
communication board(COMM)
monitor board(MON)
peripheral environment(PEPD)
Peripheral Switching Module(PSM)
---- 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
Peripheral Switching Module(PSM)
---- Structure of the PSM
Clock synchronous part
•2 SYCK boards
•1 CKI board
SYCK(synchronization oscillator)
Function ： according to the reference clock to generate the
synchronous clock for the module or system(PSM).
CKI
Function ： provide 2.048MB/S,2.048MHZ(Bits) interface for SYCK.
Synchronization clock in PSM
MP
4MHz/8KHz
DTU
COMM
D D ASIG
MON D S S F
S N N B
SLU N I I I
(MP) SP)
RSU 16MHz/8kHz 8MHz/8KHz
8MHz/16MHz/8KHz
External SYCK
clock signal
(DTI)
CKI
BITS
Peripheral Switching Module(PSM)
---- Structure of the PSM
2-level control mode in the PSM
MP
MP
MPPP
MPPP MON PEPD
Unitsininmodule
Units module Someboards
Some boards Detect the
environments
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)
Peripheral Switching Module(PSM)
---- The Message Channel
COMM Board
Note:MP-MP and MP-SP common ground
Appearance in pairs
Each pair can handle 32 channels
Peripheral Switching Module(PSM)
---- The Message Channel
COMM Board
MP-MP:COMM1/COMM2
Handle 8 modules message.(not used in single module)
Peripheral Switching Module(PSM)
---- The Message Channel
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
Peripheral Switching Module(PSM)
---- The Message Channel
MP control T-network
256Kb/s
COMM Switching
MP network
256Kb/s
256Kb/s Switching
MP COMM
network
256Kb/s
Peripheral Switching Module(PSM)
---- The Message Channel
The communication between the COMM board and MP
MP MP
COMM
COMM COMM
COMM COMM
COMM
COMM board exchange messages with active/standby MP by means
of dual port RAMs (MON,PEPD).
Peripheral Switching Module(PSM)
---- The Message Channel
The intra-module control message path passes
through the COMM and MONI board
Ethernet
MP NT
NO.7/V5 COMM MON Server
POWER 、
HDLC link SYCK 、 D
SNI 、 FBI
TNET
r o nous
sy nch us
A lb
SP seria
SP
DT DTMF
/MFC/
TONE
Peripheral Switching Module(PSM)
---- The Message Channel
1M
HW0
8M HW1 1M COMM1
HW0 HW2 1M
HW3 COMM2
HW0 HW4 1M
8M HW5
HW1 DSNI ...
1M
COMM3
HW12
HW1 HW13 1M
HW14 COMM4
HW15
DSNDSN 1M COMM5
HW16
8M HW17 1M COMM6
HW2 HW18
...
HW19
HW2 HW20
HW3 8M DSNI
HW21
... COMM13
HW28
HW3 HW29 COMM14
HW30
HW31
Peripheral Switching Module(PSM)
---- The Message Channel
20
SLU COMM
COMM
21 DSNI
DSNI
COMM
COMM
2*HW 16*2M
HW20-35 TT MP
SLU DD COMM
COMM
2*HW DSNI netwo SS
SLU
DSNI netwo NN
HW36-51 rk
rk II COMM
COMM
HW0~3
MP
1*HW HW52-61
COMM
COMM
DTU DSNI
60 DSNI
1*HW
61 FBI
FBI COMM
COMM
DTU
ASIG COMM
COMM
1*HW
HW4-19
Peripheral Switching Module(PSM)
---- The Message Channel
SNM or
other PSM
FBI
C TNET
DSNI HW0
MP O
to
M
HW3
DSNI
M
function unit
Peripheral Switching Module(PSM)
---- The Message Channel
Suppose:PSM/Mp want to send message to SP
The message path:
MPCOMM DSNICTL T network
DSNISP
Peripheral Switching Module(PSM)
---- The Voice Channel
2*HW 20
SLU DSNI
21 DSNI
2*HW HW20-35
SLU TT
2*HW DSNI
DSNI
SLU network
HW36-51 network
1*HW HW52-61
DTU DSNI
60 DSNI
1*HW FBI
FBI
61
DTU
ASIG 1*HW
HW4-19
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
RSM
MSM
RLM PSM PSM
SNM RSM RLM
PSM RLM
MP
TCP/IP
OMM
16K 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.
16K 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
P A A P
D D D D D D D D D D D D D D B
O S S O
6 W
T T T T T T T T T T T T T T
I I W D
I I I I I I I I I I I I I I T
B G G B
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
P A A P B
D D D D D D D D D D D D D D
O S S O D
5 T T T T T T T T T T T T T T
W I I W T
I I I I I I I I I I I I I I
B G G B
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
P S C C C C C C P P B
M C
4 O M O O O O O O E O
MP MP O T
W E M M M M M M P W
N L
B M M M M M M M D B
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
P S S D D D D D D D D D D D D P B
F F F F F F F F C N
O Y Y D D S S S S S S S S S S O
3 B B B B B B B B K E
W C C S S N N N N N N N N N N W
I I I I I I I I I N
C K K N N I I I I I I I I I I C
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
P P B
S S S S S S S S S S S S S S S S S S S S S S S
O O
2 L L L L L L L L L L L L L L L L L L L L P P L
W W
C C C C C C C C C C C C C C C C C C C C I I C
A A
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
B
P P S
S S S S S S S S S S S S S S S S S S S S M S S
1 O O
L L L L L L L L L L L L L L L L L L L L T P P L
W W C
C C C C C C C C C C C C C C C C C C C C T
A A
16K switching network module
----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
F F F F F F F F D D D D D D D D D D D D
B B B B B B B B D D S S S S S S S S S S
I I I I I I I I S S N N N N N N N N N N
N N I I I I I I I I I I
HW 68-83 84-99 100-115 116-121 0-3 52-67 36-51 20-35 4-19
HW 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
( with backboard of BNEN )
16K switching network module
----HW distribution of 16K switching module
17 ， 18 slots HW0-HW3
25 ， 26 slots HW4-HW19
23 ， 24 slots HW20-HW35
21 ， 22 slots HW36-HW51
19 ， 20 slots HW52-HW67
2 ， 3 slots HW68-HW83
4 ， 5 slots HW84-HW99
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)
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 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 B
P S C C C C C C P M T T A A A P C
D D D D D
O M M M O O O O O O E O N N S S S O T
6 W E P P M M M M M M P N E E I I I
T T T T T
W
B M M M M M M M D T T G G G
I I I I I
B N
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 B
P P
S S S S S S S S S S S S S S S S S S S S M S S S
5 O O
L L L L L L L L L L L L L L L L L L L L T P P L
W W
C C C C C C C C C C C C C C C C C C C C T
A A C
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
P P B
S S S S S S S S S S S S S S S S S S S S S S S
4 O O
L L L L L L L L L L L L L L L L L L L L P P
W
C C C C C C C C C C C C C C C C C C C C I I
W L
A A C
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
P
S S S S S S S S S S S S S S S S S S S S M S S
P B
O O S
3 L L L L L L L L L L L L L L L L L L L L T P P
W W
C C C C C C C C C C C C C C C C C C C C T L
A A
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 C
P P B
S S S S S S S S S S S S S S S S S S S S S S
2 O
L L L L L L L L L L L L L L L L L L L L P P
O S
W W L
C C C C C C C C C C C C C C C C C C C C I I
A A
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
C
P P B
S S S S S S S S S S S S S S S S S S S S M S S S
1 O O
L L L L L L L L L L L L L L L L L L L L T P P
W
C C C C C C C C C C C C C C C C C C C C T
W L
A A C
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 module
----Hws distribution
Hw 0,2 for communication
Hw 1,3 idle Hw 18-29 for SP
.. .. .. .. ..
A A D D D ODT ODT
M A S S T T T
P S I I /DT /DT
I G G
G
HW 0-3 4 5 6 7 8 9 10-13 14-17
Compact 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
RSU
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.
RSU
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
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
P R R R R R R R P B
O E E D D D D O O R
3 W P P T T T T D W S
B D D T B U
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 B
P P
S S S S S S S S S S S S S S S S S S S S S S S
O O
2 L L L L L L L L L L L L L L L L L L L L P P L
W W
C C C C C C C C C C C C C C C C C C C C I I
A A C
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
P P B
S S S S S S S S S S S S S S S S S S S S M S S S
O O
1 L L L L L L L L L L L L L L L L L L L L T P P
W
C C C C C C C C C C C C C C C C C C C C T
W L
A A C
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---- 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 PSM
The Concrete Configuration of PSM
---- The circuit description
Format:
Module number_rack number_shelf number_board
Position number_circuit serial number
The Concrete Configuration of PSM
---- 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
The Concrete Configuration of PSM
---- 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
The Concrete Configuration of PSM
---- 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
The Concrete Configuration of PSM
---- The circuit description
Digital trunk :
Each DTI board :4 PCM
(4*2Mb/s ports=120 voice channel)
The structure of background network
The structure of background network(1/3)
NT Server
MP
MP 。。。
TCP/IP
protocol
NT Client router
NT Client
..
DDN
PSTN/PSPDN
NT Client NT Client NT Client
The structure of background network(2/3)
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
The structure of background network(3/3)
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.
THANK YOU
Training Center
Zhongxing Telecom Pakistan (Pvt.) Ltd
