HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
www.huawei.com
Internal
OWH001102 UMG8900
Hardware Introduction
ISSUE 2.2
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Upon completion of this course, you will be
able to:
�Master UMG8900’s shelf、 frame and
board’s function, classification and
interface for operation etc
�Understand the inner signaling flow
�Master the concatenation and cables
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References
� UMG8900 Hardware Installation Manual
� UMG8900 Hardware Description Manual
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Chapter 1 OverviewChapter 1 Overview
Chapter 2 Board functionChapter 2 Board function
Chapter 3 Signaling flowChapter 3 Signaling flow
Chapter 4 Concatenation and cablesChapter 4 Concatenation and cables
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R4 Networking
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Shelf and Frame
(1)
(2)
(3)
(5)
(4)
(5) Filter box(4) Board
(3) Integrated fan(2) 9U board(1) Frame lintel
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Shelf and Frame
(3) Embedded fan box(2) Mounting angle(1) Frame lintel
(8) DIP switch for setting frame ID(7) Power-in terminal of fan box
(6) Power-out terminal of fan box(5) Interface for alarm cable
(4) Standby power-in terminal of fan box(3) Interface for monitoring cable
(2) Power-in terminal of frame(1) Mounting angle
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Frame classification
� The main control frame: manages and controls the whole UMG8900
equipment and provides clock signals for other frames.
� The central switching frame: implements frame subtending function.
� The service frame : implements service processing and interfacing
functions.
� The extended control frame: It is configured when the networking with
large capacity is required. It is responsible for protocol processing and
connection management, and implements controlling and managing the
service frames.
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Frame configuration
Service frame#2
Main control frame#1
Central switch frame#0
Air defence frame
Power distribution frame
Air defence frame
Dummy panel
Fiber coiler
Service frame#5
Service frame#4
Service frame#3
Air defence frame
Power distribution frame
Air defence frame
Dummy panel
Fiber coiler
Extended control frame#8
Service frame#7
Service frame#6
Air defence frame
Power distribution frame
Air defence frame
Dummy panel
Fiber coiler
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DIP Switch
OFF
1 2 3 4 5 6 7 8
ON
81000ONONONOFF
70111OFFOFFOFFON
60110ONOFFOFFON
50101OFFONOFFON
40100ONONOFFON
30011OFFOFFONON
20010ONOFFONON
10001OFFONONON
00000ONONONON
SW1SW2SW3SW4Frame IDBinary number
DIP switch setting
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Slot distribution
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
O
M
U
O
R
M
P
U
Service board
Front boards slot distribution
O
M
U
R
M
P
U
Service board
Service board
Service board
Service board
Service board
Service board
Service board
Service board
Service board
Service board
Service board
O
Serviceboard
Serviceboard
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Slot distribution
N
E
T
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
N
E
T
T
N
U
O
R
T
C
L
U
Service board
Back board’s slot distribution
Service board
Service board
Service board
Service board
Service board
Service board
Service board
Service board
Service board
Service board
Service board
T
N
U
O
R
T
C
L
U
HUAWEI TECHNOLOGIES CO., LTD. Page 13All rights reserved
Questions
� Please describe the classification, function and location in the shelf
of the UMG8900’s frames.
� How to set the DIP switch?
� Please describe the slot distribution of UMG8900.
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� Frame classification, function
and distribution in shelf
� Slot distribution in frame
� Dip switch setting.
SummarySummary
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Chapter 1 OverviewChapter 1 Overview
Chapter 2 Board functionChapter 2 Board function
Chapter 3 Signaling flowChapter 3 Signaling flow
Chapter 4 Concatenation and cablesChapter 4 Concatenation and cables
HUAWEI TECHNOLOGIES CO., LTD. Page 16All rights reserved
Chapter 2 Board functionChapter 2 Board function
2.1 Hardware system introduction2.1 Hardware system introduction
2. 2 Operation and maintenance subsystem 2. 2 Operation and maintenance subsystem
2.3 Gateway control subsystem 2.3 Gateway control subsystem
2.4 Packet service processing subsystem 2.4 Packet service processing subsystem
2.5 TDM service processing subsystem 2.5 TDM service processing subsystem
2.6 Service resource subsystem 2.6 Service resource subsystem
2.7 Signaling forwarding subsystem 2.7 Signaling forwarding subsystem
2.8 Clock subsystem 2.8 Clock subsystem
2.9 Cascading subsystem 2.9 Cascading subsystem
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Hardware system
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Chapter 2 Board functionChapter 2 Board function
2.1 Hardware system introduction2.1 Hardware system introduction
2. 2 Operation and maintenance subsystem2. 2 Operation and maintenance subsystem
2.3 Gateway control subsystem 2.3 Gateway control subsystem
2.4 Packet service processing subsystem 2.4 Packet service processing subsystem
2.5 TDM service processing subsystem 2.5 TDM service processing subsystem
2.6 Service resource subsystem 2.6 Service resource subsystem
2.7 Signaling forwarding subsystem 2.7 Signaling forwarding subsystem
2.8 Clock subsystem 2.8 Clock subsystem
2.9 Cascading subsystem 2.9 Cascading subsystem
HUAWEI TECHNOLOGIES CO., LTD. Page 19All rights reserved
OMU and MPU
board
board
board
Other frame
board
board
board
board
Main control frame
Board
board
board
board
Other frame
MPU
MPU
(Slave)
MPU
MPU
(Master)
OMU
OMU
board
(Slave)
(Master)
(Slave)
(Master)
board
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MPU
� Implementing control information interaction between the boards
and inter-frame control information interaction as well as interface
management in the case of multiple frames subtended.
� Monitoring and managing the status of all boards in the frame.
� Implementing status querying, monitoring and power-on or power-off
management to the equipment through special maintenance module,
and controlling board power-on sequence to avoid impact from
instant current.
HUAWEI TECHNOLOGIES CO., LTD. Page 21All rights reserved
Chapter 2 Board functionChapter 2 Board function
2.1 Hardware system introduction2.1 Hardware system introduction
2. 2 Operation and maintenance subsystem 2. 2 Operation and maintenance subsystem
2.3 Gateway control subsystem 2.3 Gateway control subsystem
2.4 Packet service processing subsystem 2.4 Packet service processing subsystem
2.5 TDM service processing subsystem 2.5 TDM service processing subsystem
2.6 Service resource subsystem 2.6 Service resource subsystem
2.7 Signaling forwarding subsystem 2.7 Signaling forwarding subsystem
2.8 Clock subsystem 2.8 Clock subsystem
2.9 Cascading subsystem 2.9 Cascading subsystem
HUAWEI TECHNOLOGIES CO., LTD. Page 22All rights reserved
MGW control subsystem
CMU
PPU
OMU/MPU
LAN-Switch
Gateway control
subsystem
H.248(FE)
MGC(MSOFTX3000)
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CMU
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CMU
� Providing internal interface to connect with the PPU to implement
interaction of H.248 messages.
� Providing interfaces to connect with the RPU, ASU, TNU and TCLU
to control the boards to convert media streams.
� Providing interface to connect with the MPU to implement data
configuration and output alarms, debugging information and logs.
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PPU
�Providing the Mc interface to the
MGC, B interface to the CMU and
internal interfaces to the MPU.
�Receiving H.248 messages
through Mc interface, implementing
H.248 protocol stack processing,
and forwarding the H.248
messages to the CMU.
�Assembling H.248 messages
received from the CMU, then
performing protocol adaptation
according to H.248 packet format
and sending them to the MGC.
Stack for Mc interface Stack for SG function
H.248
SCTP/UDP
IP
SCCP
M3UA
IP
RANAP
SCTP
HUAWEI TECHNOLOGIES CO., LTD. Page 26All rights reserved
Chapter 2 Board functionChapter 2 Board function
2.1 Hardware system introduction2.1 Hardware system introduction
2. 2 Operation and maintenance subsystem 2. 2 Operation and maintenance subsystem
2.3 Gateway control subsystem 2.3 Gateway control subsystem
2.4 Packet service processing subsystem 2.4 Packet service processing subsystem
2.5 TDM service processing subsystem 2.5 TDM service processing subsystem
2.6 Service resource subsystem 2.6 Service resource subsystem
2.7 Signaling forwarding subsystem 2.7 Signaling forwarding subsystem
2.8 Clock subsystem 2.8 Clock subsystem
2.9 Cascading subsystem 2.9 Cascading subsystem
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Packet service processing subsystem
ASUTAC
A4L/
EAC/
TAC
RPURPU
E8T/
G1O/
P1H/P4L
E8T/
G1O/
P1H/P4L
OMU/MPU
TCUTCUTCU
ASU
Packet service processing
subsystem
NET
CLK/GE/FE
IPATM
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ASU
ATM Control Plane Protocol
Stack
SCCP
SAAL
MTP3b
AAL2
RANAP/BICC/ISUP
ATM
IuUP/NbUP
ASU
ATM
ATM User Plane Protocol
Stack
UMTS Access Signaling Adaptor is accomplished by ASU and PPUUMTS Access Signaling Adaptor is accomplished by ASU and PPU
HUAWEI TECHNOLOGIES CO., LTD. Page 29All rights reserved
Back board corresponding to ASU
A
S
U
(m)
A
4
L
A
S
U
(s)
B
A
P
A
S
U
(m)
E
A
C
A
S
U
(s)
B
E
A
A
S
U
(m)
T
A
C
A
S
U
(s)
B
T
A
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RPU
Nb UP
UDP
IP
RTP RTCP
IP
UDP
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Back board corresponding to RPU
R
P
U
(m)
P
4
L
R
P
U
(s)
B
A
P
R
P
U
(m)
E
1
G
R
P
U
(s)
B
G
E
R
P
U
(m)
E
8
T
R
P
U
(s)
B
F
E
R
P
U
(m)
P
1
H
R
P
U
(s)
B
A
P
HUAWEI TECHNOLOGIES CO., LTD. Page 32All rights reserved
NET
MNET
TCL
U
MNET
MBLU
FE+GE
Main Control
(1#)
(0#)
(8#)
2#
TDM
F
E
F
E(2#~7#)
3# 4# 5# 6# 7#
FE+GE+TDM FE+GE+TDM
MNET
MBLU
MBLU
MBLU
MBLU
MBLU
MBLU
MBLU
MBLU
MBLU
MBLU
MBLU
MNET
MTNU
MNET
MTNU
MNET
TDM
TCL
U
Central Switch
Service
Extension Control
Service Service Service Service Service Service
HUAWEI TECHNOLOGIES CO., LTD. Page 33All rights reserved
Chapter 2 Board functionChapter 2 Board function
2.1 Hardware system introduction2.1 Hardware system introduction
2. 2 Operation and maintenance subsystem 2. 2 Operation and maintenance subsystem
2.3 Gateway control subsystem 2.3 Gateway control subsystem
2.4 Packet service processing subsystem 2.4 Packet service processing subsystem
2.5 TDM service processing subsystem 2.5 TDM service processing subsystem
2.6 Service resource subsystem 2.6 Service resource subsystem
2.7 Signaling forwarding subsystem 2.7 Signaling forwarding subsystem
2.8 Clock subsystem 2.8 Clock subsystem
2.9 Cascading subsystem 2.9 Cascading subsystem
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TDM service processing subsystem
E32/T32/
S2L/S2E
OMU/MPU
VPUVPUTCU
E32/T32/S2L/S2E
TDM service processing subsystem
TNU/
TCLU
3*TDM
Packet processing subsystem
TDM
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TDM service processing subsystem
� MTNU
� It provide switching and subtending function, it has the master
station compare with the TCLU, it can provide all of the TDM
service switching include the frame TDM service switching which
the MTNU in.
� TCLU
� It provide switching and subtending function, but it can only
provide the frame’s TDM service switching which the TCLU in.
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TNU
�The TNU, together with TDM service interface boards,
composes the T-S-T switching network for the whole
TDM system.
�Implementing one-plus-one backup. The subtending
optical fiber provides one-plus-one protection.
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TCLU
�The TCLU, together with interface boards,
composes the switching network for the same
subrack.
�Implementing one-plus-one backup. The subtending
optical fiber provides one-plus-one protection.
HUAWEI TECHNOLOGIES CO., LTD. Page 38All rights reserved
Chapter 2 Board functionChapter 2 Board function
2.1 Hardware system introduction2.1 Hardware system introduction
2. 2 Operation and maintenance subsystem 2. 2 Operation and maintenance subsystem
2.3 Gateway control subsystem 2.3 Gateway control subsystem
2.4 Packet service processing subsystem 2.4 Packet service processing subsystem
2.5 TDM service processing subsystem 2.5 TDM service processing subsystem
2.6 Service resource subsystem 2.6 Service resource subsystem
2.7 Signaling forwarding subsystem 2.7 Signaling forwarding subsystem
2.8 Clock subsystem 2.8 Clock subsystem
2.9 Cascading subsystem 2.9 Cascading subsystem
HUAWEI TECHNOLOGIES CO., LTD. Page 39All rights reserved
TCU
� The TransCode Unit (TCU) provides voice coding/decoding
resources and echo cancellation resources, implements voice
packetization at TDM side, processes voice datagram, and
implements tone playing function
� The Echo Cancellation Unit (ECU) in the UMG8900 is used to
implement echo cancellation function for the voice signals.
HUAWEI TECHNOLOGIES CO., LTD. Page 40All rights reserved
S2L
�Implementing clock and data recovery of two 155-M
optical interfaces.
�Processing overheads of regenerator section and
multiplex section of optical signals and checking
communication through optical channel.
�Implementing mapping, demapping of SDH and
processing overheads of high-order path and low-order
path.
�Processing E1*63*2 framing and implementing DS0
switching of level-one TDM service.
�Implementing access of 4-k TDM service.
ACT
ACT
LINK
LINK
RX0
RX1
TX0
TX1
HUAWEI TECHNOLOGIES CO., LTD. Page 41All rights reserved
Chapter 2 Board functionChapter 2 Board function
2.1 Hardware system introduction2.1 Hardware system introduction
2. 2 Operation and maintenance subsystem 2. 2 Operation and maintenance subsystem
2.3 Gateway control subsystem 2.3 Gateway control subsystem
2.4 Packet service processing subsystem 2.4 Packet service processing subsystem
2.5 TDM service processing subsystem 2.5 TDM service processing subsystem
2.6 Service resource subsystem 2.6 Service resource subsystem
2.7 Signaling forwarding subsystem2.7 Signaling forwarding subsystem
2.8 Clock subsystem 2.8 Clock subsystem
2.9 Cascading subsystem 2.9 Cascading subsystem
HUAWEI TECHNOLOGIES CO., LTD. Page 42All rights reserved
SPF
�It is responsible for SIGTRAN protocols processing such as M3UA/M2UA/
SCTP/IP/ MAC protocols
�It can process 4 2-Mbit/s links and 64 64-kbit/s links of SS7 signaling over MTP2
layer, or 64 channels of V5 protocol or 128 channels of PRA protocol.
SEP UMG8900 MSOFTX3000
S7UP
MTP3
S7UP
MTP3
MTP2
MTP1 MTP1
MTP2M2UA
SCTP
IP
M2UA
SCTP
IP
MAC MAC
SS7 IP
M2UA-NIF
TDM IP
HUAWEI TECHNOLOGIES CO., LTD. Page 43All rights reserved
Chapter 2 Board functionChapter 2 Board function
2.1 Hardware system introduction2.1 Hardware system introduction
2. 2 Operation and maintenance subsystem 2. 2 Operation and maintenance subsystem
2.3 Gateway control subsystem 2.3 Gateway control subsystem
2.4 Packet service processing subsystem 2.4 Packet service processing subsystem
2.5 TDM service processing subsystem 2.5 TDM service processing subsystem
2.6 Service resource subsystem 2.6 Service resource subsystem
2.7 Signaling forwarding subsystem 2.7 Signaling forwarding subsystem
2.8 Clock subsystem 2.8 Clock subsystem
2.9 Cascading subsystem 2.9 Cascading subsystem
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Clock subsystem
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CLK
�CLK is the system clock board, responsible for receiving line clock
signals extracted by interface boards and external synchronous
clock signals provided by BITS.
�Each MGW frame is configured with two NET boards. In the main
control frame, the clock boards provide 16-kHz clock signals to the
NET boards of the frame through the backplane. In other MGW
frames, the clock boards provide 16-kHz clock signals to the NET
boards through the distributed cables.
�The CLK also outputs external synchronous clock signals.
HUAWEI TECHNOLOGIES CO., LTD. Page 46All rights reserved
Chapter 2 Board functionChapter 2 Board function
2.1 Hardware system introduction2.1 Hardware system introduction
2. 2 Operation and maintenance subsystem 2. 2 Operation and maintenance subsystem
2.3 Gateway control subsystem 2.3 Gateway control subsystem
2.4 Packet service processing subsystem 2.4 Packet service processing subsystem
2.5 TDM service processing subsystem 2.5 TDM service processing subsystem
2.6 Service resource subsystem 2.6 Service resource subsystem
2.7 Signaling forwarding subsystem 2.7 Signaling forwarding subsystem
2.8 Clock subsystem 2.8 Clock subsystem
2.9 Cascading subsystem2.9 Cascading subsystem
HUAWEI TECHNOLOGIES CO., LTD. Page 47All rights reserved
Cascading subsystem
M
B
L
U
MMPU/MNET/MTNU
Central switch frame
3xTDM+2xGE+1xFE
M
F
L
U
M
B
L
U
M
F
L
U
MMPU/MNET/TCLU
Slave frame 1
M
T
C
U
M
S
2
L
M
A
S
U
M
A
4
L
MMPU/MNET/TCLU
Slave frame 6
M
T
C
U
M
S
2
L
M
A
S
U
M
A
4
L
HUAWEI TECHNOLOGIES CO., LTD. Page 48All rights reserved
BLU
HUAWEI TECHNOLOGIES CO., LTD. Page 49All rights reserved
FLU
� The Front Link Unit (FLU) is the front subtending board of
UMG8900 in the case of multiple frames subtended.
� A couple of FLUs can provide 8-k time-slot of TDM data
subtending channel and 2x1.25 G of GE data subtending
channel for the corresponding back subtending board BLU.
� FLU has no interface.
HUAWEI TECHNOLOGIES CO., LTD. Page 50All rights reserved
Questions
� Please describe the umg8900’s hardware classification and each
class’ function
� Please describe UMG8900’s functions and interfaces
HUAWEI TECHNOLOGIES CO., LTD. Page 51All rights reserved
� UMG8900’s hardware classification
and each class’ function
� UMG8900’s board’s function and
interfaces
SummarySummary
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Chapter 1 OverviewChapter 1 Overview
Chapter 2 Board functionChapter 2 Board function
Chapter 3 Signaling flowChapter 3 Signaling flow
Chapter 4 Concatenation and cablesChapter 4 Concatenation and cables
HUAWEI TECHNOLOGIES CO., LTD. Page 53All rights reserved
Chapter 3 Signaling flowChapter 3 Signaling flow
3.1 Service signaling flow3.1 Service signaling flow
3.2 Clock signaling flow3.2 Clock signaling flow
3.3 Loading signaling flow3.3 Loading signaling flow
3.4 Alarm signaling flow3.4 Alarm signaling flow
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Service signaling flow
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Chapter 3 Signaling flowChapter 3 Signaling flow
3.1 Service signaling flow3.1 Service signaling flow
3.2 Clock signaling flow3.2 Clock signaling flow
3.3 Loading signaling flow3.3 Loading signaling flow
3.4 Alarm signaling flow3.4 Alarm signaling flow
HUAWEI TECHNOLOGIES CO., LTD. Page 56All rights reserved
Clock extraction
M
C
L
K
M
C
L
K
M
N
E
T
M
N
E
T
M
E
3
2
M
E
3
2
2048kbit/s
2048KHz
1.5GHz 1.5GHz
GPS/GLONASSBITS
8KHz
Main
Control
Frame
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Clock distribution
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Chapter 3 Signaling flowChapter 3 Signaling flow
3.1 Service signaling flow3.1 Service signaling flow
3.2 Clock signaling flow3.2 Clock signaling flow
3.3 Loading signaling flow3.3 Loading signaling flow
3.4 Alarm signaling flow3.4 Alarm signaling flow
HUAWEI TECHNOLOGIES CO., LTD. Page 59All rights reserved
FTP server OMULMT
C
L
K
T
N
U
N
E
T
N
E
T
T
N
U
A
4
L
P
4
L
S
2
L
E
3
2
T
C
U
A
S
U
O
M
U
O
M
U
R
P
U
E
8
T
G
1
O
FE crossover network cable RS232 cabel
FE crossovernetwork cable
FE control bus
master/ slave
FTP service hyper terminal
HUAWEI TECHNOLOGIES CO., LTD. Page 60All rights reserved
OMU embedded BAM
O
M
U
O
M
U
N
E
T
N
E
T
main control
frame
M
P
U
M
P
U
N
E
T
N
E
T
central exchange
frame
T
C
L
U
T
C
L
U
B
L
U
F
L
U
T
N
U
T
N
U
1*FE+2GE+*TDM
master/slaveFE bus
master/slave FE bus
se
rvic
e
bo
ard
HUAWEI TECHNOLOGIES CO., LTD. Page 61All rights reserved
OMU embedded BAM
TT
CC
LL
UU
TT
CC
LL
UU
NN
EE
TT
NN
EE
TT
MM
PP
UU
MM
PP
UU
OMU
OMU
NET
NET
main control frame
MPU
MPU
NET
NET
central exchange frame
TCLU
TCLU
FLU
BLU
FLU
BLU
NET
NET
MPU
MPU
TCLU
TCLU
service frame
TNU
TNU
1*FE+2GE+3*TDM
service
board
master/slave
FE bus
master/slaveFE bus
master/slaveFE bus
NET
NET
MPU
MPU
TCLU
TCLU
master/slaveFE bus
extended control frameservice frame
master/slave
FE bus
HUAWEI TECHNOLOGIES CO., LTD. Page 62All rights reserved
Chapter 3 Signaling flowChapter 3 Signaling flow
3.1 Service signaling flow3.1 Service signaling flow
3.2 Clock signaling flow3.2 Clock signaling flow
3.3 Loading signaling flow3.3 Loading signaling flow
3.4 Alarm signaling flow3.4 Alarm signaling flow
HUAWEI TECHNOLOGIES CO., LTD. Page 63All rights reserved
Alarm path
O
M
U
O
M
U
N
E
T
N
E
T
T
N
U
T
N
U
C
L
K
A
4
L
M
A
S
U
P
4
L
M
S
2
L
M
E
3
2
T
C
U
R
P
U
T
C
U
FE bus
Mbusserv
ice
board
LMT
crossover networkcable
Note: when LMT is connected
with the host through LanSwitch,
the straight-thru cable is usedserv
ice
board
master/ slave
master/ slave
HUAWEI TECHNOLOGIES CO., LTD. Page 64All rights reserved
Alarm path
OMU
OMU
NET
NET
main control frame
MPU
MPU
NET
NET
central exchange frame
TCLU
TCLU
BLU
FLU
TNU
TNU
1*FE+2GE+*TDM
master/slave
FE bus
master/slave
Mbus bus
service
b oard
RPU
HUAWEI TECHNOLOGIES CO., LTD. Page 65All rights reserved
Alarm path
OMU
OMU
NET
NET
main control frame
MPU
MPU
NET
NET
centralexchangeframe
TCLU
TCLU
FLU
BLU
FLU
BLU
NET
NET
MPU
MPU
TCLU
TCLU
NET
NET
MPU
MPU
TCLU
TCLU
service frame
TNU
TNU
1*FE+2GE+*TDM
se
vic
ebo
ard
master/slave
FE bus
master/slaveFE bus
NET
NET
MPU
MPU
TCLU
TCLU
extended control frameservice frame
master/slaveMbus
master/slaveMbus
master/slaveMbus
HUAWEI TECHNOLOGIES CO., LTD. Page 66All rights reserved
Questions
� Please describe the all kinds of signaling flow
HUAWEI TECHNOLOGIES CO., LTD. Page 67All rights reserved
� Service signaling flow
� Clock signaling flow
� Loading signaling flow
� Alarm signaling flow
SummarySummary
HUAWEI TECHNOLOGIES CO., LTD. Page 68All rights reserved
Chapter 1 OverviewChapter 1 Overview
Chapter 2 Board functionChapter 2 Board function
Chapter 3 Signaling flowChapter 3 Signaling flow
Chapter 4 Concatenation and cablesChapter 4 Concatenation and cables
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Chapter 4 Concatenation and cables Chapter 4 Concatenation and cables
4.1 Cascading cable distribution4.1 Cascading cable distribution
4.2 Clock cable distribution4.2 Clock cable distribution
4.3 Monitoring cable distribution4.3 Monitoring cable distribution
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Two frames cascading
OM
U
MN
ET
TN
U
TN
U
MP
U
MP
U
TC
LU
TDM
FEGE
CLK
CLK
MN
ET
OM
U
TC
LU
MN
ET
MN
ET
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Two frames cascading
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More than three frames cascading
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More than three frames cascading
( )
( )
( )
( )( )
( ) ( )
( ) ( )
( ) ( )
( ) ( )
( ) ( )
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Chapter 4 Concatenation and cables Chapter 4 Concatenation and cables
4.1 Cascading cable distribution4.1 Cascading cable distribution
4.2 Clock cable distribution4.2 Clock cable distribution
4.3 Monitoring cable distribution4.3 Monitoring cable distribution
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Clock extraction
M
C
L
K
M
C
L
K
M
N
E
T
M
N
E
T
M
E
3
2
M
E
3
2
2048kbit/s
2048KHz
1.5GHz 1.5GHz
GPS/GLONASSBITS
8KHz
Main
Control
Frame
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Clock cable distribution
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Chapter 4 Concatenation and cables Chapter 4 Concatenation and cables
4.1 Cascading cable distribution4.1 Cascading cable distribution
4.2 Clock cable distribution4.2 Clock cable distribution
4.3 Monitoring cable distribution4.3 Monitoring cable distribution
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Monitoring cable distribution
D B 1 5
D B 1 5
D B 15
D B 9
D B 9
D B 9
P ow e r d is tr ib u tio n fram e
S e rv ic e fram e
C e n tra l s w itc h fram e
M a in c o n tro l fram e
A ir d e fle c to r
F a n b o x
A ir d e fle c to r
F a n b o x
F a n b o x
D B 1 5
D B 1 5
D B 1 5
D B 1 5
D B 9
D B 9
D B 9
P ow e r d is tr ib u tio n fram e
A ir d e fle c to r
F a n b o x
A ir d e fle c to r
F a n b o x
F a n b o x
D B 1 5
S e rv ic e fram e
S e rv ic e fram e
S e rv ic e fram e
M a in c o n tro l c a b in e t S e rv ic e c a b in e t
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Questions
� If there are 4 frames how to cascade them?
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� Cascading cable distribution
� Clock cable distribution
� Monitoring cable distribution
SummarySummary
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� Board function
� Signaling flow
� Concatenation and cables
SummarySummary
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