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Optical Network Curriculum
Development Section
ISSUE
OTA105103 OptiX OSN 3500
Hardware System Overview
1.0
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2Confidential Information of Huawei.
No Spreading without Permission. Security Level: Internal
Objectives
Grasp the structure of the
equipment
Grasp the main function of
every mentioned board.
Grasp the signal flow and the
alarms
Upon completion of this course,you will be able to:
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4Confidential Information of Huawei.
No Spreading without Permission. Security Level: Internal
Equipment OverviewOptiX OSN 9500
Backbone
OptiX OSN 3500 OptiX 10G
OptiX OSN 3500
OptiX OSN 2500
OptiX OSN 1500
OptiX OSN 2500OptiX OSN 1500
Aggregatio
Access
GSM/CDMA/
WCDMAEthernet DDNPSTN ATM. . .
Position of the OptiX OSN 3500 in transport network
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5Confidential Information of Huawei.
No Spreading without Permission. Security Level: Internal
Rack
Can be installed on ETSI or 19
Inch Cabinet
Dimension of rack:
1. 2000mm(H)X600mm(W)X300mm(D)
(60 Kg) can contain 1 sub-rack
2. 2200mm(H)X600mm(W)X300mm(D)
(70.4 Kg) can contain 2 sub-racks
3. 2600mm(H)X600mm(W)X300mm(D)
(80 Kg) can contain 2 sub-racks
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6Confidential Information of Huawei.
No Spreading without Permission. Security Level: Internal
Power Box
NEG2(-)
INPUT
RTN2(+)RTN1(+) NEG1(-)
SW3/20ASW1/20A SW2/20A SW4/20ASW1/20A SW3/20ASW2/20A SW4/20A
1. Grounding STUD 2. PGND 3. RTN1(+)4. RTN2(+) 5. NEG1(-) 6. NEG2(-)7. Input cable terminal 8. Left output cable terminal 9.Right output cable terminal
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Rack
Indicators on the cabinet
Indicator DescriptionStatus
On Off
Red
indicator
Critical
alarm
Critical alarm on one Sub-
rack, which is accompaniedby an audible alarm.
No Critical alarm on
any Sub-rack.
Yellow
indicator
Major
alarm
Major alarm on one Sub-rack. No Major alarm on
any Sub-rack.
Orange
indicator
Minor
alarm
Minor alarm on one Sub-rack. No Minor alarm on
any Sub-rack.Green
indicator
Power The power supply is normal
(-38.4 ~ -57.6V or
-48.0V ~ -72.0 ).
Power supply is
interrupted or
abnormal.
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Contents
Rack and Related Parts
Sub-rack
Circuit Boards
Auxiliary Parts
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9Confidential Information of Huawei.No Spreading without Permission. Security Level: Internal
Sub-rack
Service typeMaximum
access ports
STM-64 4
STM-16 8
STM-4 46
STM-1 optical 92
STM-1 electrical 78
E4 service 32
E3/DS3 service 48
E1/T1 service 504
FE service 92
GE service 30
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11Confidential Information of Huawei.No Spreading without Permission. Security Level: Internal
Sub-rack
Fiber Routing
S
L
O
T
1
S
L
O
T
2
S
L
O
T
3
S
L
O
T
4
S
L
O
T
5
S
L
O
T
6
S
L
O
T
7
S
L
O
T
8
S
L
O
T
9
S
L
O
T
1
0
S
L
O
T
1
1
S
L
O
T
1
2
S
L
O
T
1
3
S
L
O
T
1
4
S
L
O
T
1
5
S
L
O
T
1
6
S
L
O
T
1
7
S
L
O
T
1
8
S
L
OT
2
7
S
L
OT
1
9
S
L
OT
2
0
S
L
OT
2
1
S
L
OT
2
2
S
L
OT
2
3
S
L
OT
2
4
S
L
OT
2
5
S
L
OT
2
6
S
L
OT
3
7
S
L
OT
2
9
S
L
OT
3
0
S
L
OT
3
1
S
L
OT
3
2
S
L
OT
3
3
S
L
OT
3
4
S
L
OT
3
6
S
L
OT
3
5
S
L
OT
2
8
FAN FAN FAN
P
I
U
P
I
U
A
U
X
S
C
C
S
C
C
X
C
S
X
C
S
Slot Assignment& Relation
2 19, 203 21, 224 23, 245 25, 26
13 29, 3014 31, 3215 33, 3416 35, 36
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12Confidential Information of Huawei.No Spreading without Permission. Security Level: Internal
Sub-rack
Sub-rack slot access capacity
S
LO
T
1
S
LO
T
2
S
LO
T
3
S
LO
T
4
S
LO
T
5
S
LO
T
6
S
LO
T
7
S
LO
T
8
S
LO
T
9
S
LO
T
1
0
S
LO
T
1
1
S
LO
T
1
2
S
LO
T
1
3
S
LO
T
1
4
S
LO
T
1
5
S
LO
T
1
6
S
LO
T
1
7
S
LO
T
1
8
S
CC
S
CCG
XC
S
GXC
S
2.5
Gb
it/s
622Mbit/s
2.5
Gb
it/s
10Gb
it/s
10Gb
it/s
622Mbit/s
622Mbit/s
622Mbit/s
622Mbit/s
622Mbit/s
622Mbit/s
622Mbit/s
Fiber Routing
FAN FAN FAN
2.5
Gb
it/s
2.5
Gb
it/s
Configuration 1
40 G(35G +5G)
224X224 VC-4
96X96 VC-32016X2016 VC-12
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13Confidential Information of Huawei.No Spreading without Permission. Security Level: Internal
Sub-rack
Sub-rack slot access capacity
S
LO
T
1
S
LO
T
2
S
LO
T
3
S
LO
T
4
S
LO
T
5
S
LO
T
6
S
LO
T
7
S
LO
T
8
S
LO
T
9
S
LO
T
1
0
S
LO
T
1
1
S
LO
T
1
2
S
LO
T
1
3
S
LO
T
1
4
S
LO
T
1
5
S
LO
T
1
6
S
17
S
LO
T
1
8
SC
C
S
C
C
or
EXCS
EXCS
2.5
Gbi
t/s
2.5
Gbi
t/s
2.5
Gbi
t/s
10Gbit/s
10Gbit/s
1.2
5Gb
it/s
1.2
5Gb
it/s
1.2
5Gb
it/s
1.2
5Gb
it/s
1.2
5Gb
it/s
1.2
5Gb
it/s
2.5
Gbi
t/s
10Gbit/s
10Gbit/s
1.2
5Gb
it/s
Fiber Routing
FAN FAN FAN
Configuration 2
60 G (80 G)(60G + 5G)
376X376 VC-4
96X96 VC-3
2016X2016 VC-12
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14Confidential Information of Huawei.No Spreading without Permission. Security Level: Internal
Equipment Protection
Items protected Protection scheme
E1/T1 processing board 1:N (N 8) TPS
E3/DS3 processing board 1:N (N 3) TPS (2 Groups)
E4/STM-1 processing board 1:N (N 3) TPS (2 Groups)
Cross-connect and timing unit 1+1 hot backup protection
SCC unit 1+1 hot backup protection
-48V power interface board 1+1 hot backup protection
3.3V board power supply1:N centralized hot backup
protection
* The OptiX OSN 3500 can support three TPS groups of
different types of services at the one time.
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Confidential Information of Huawei.
No Spreading without Permission. Security Level: Internal
System Overview
East
SDH interfaceunit (STM-1/4/
16/64)
SDH interfaceunit (STM-1/4/
16/64)
SDH cross-connect matrix andsynchronous timing unit (higher-order/
lower-order: 40G/5G and 60G/5G)
SCC unitand
overhead
processingunit
PDH
interfaceunit (E1/
T1/E3/T3/E4)
Ethernet
interfaceunit (10/
100/1000M)
Auxiliary
interfaceunit
West
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Confidential Information of Huawei.
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System Overview
Cross-connect Unit
(High-order 376X376VC-4)
(Low-order 2016*2016 VC-12)
IU
IU
IU
IU
IU
IU
IU
IU
IU
IU
IU
IU
Timing
Unit
Auxiliary
interface unitSCC andOHP unit
Interface Unit Interface Unit
Managementinterface
Auxiliaryinterface
Externalsychronization
interface
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Confidential Information of Huawei.
No Spreading without Permission. Security Level: Internal
Contents
Rack and Related Parts
Sub-rack
Circuit Boards
Auxiliary Parts
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Confidential Information of Huawei.
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Board
Boards can be classified as:
Units
1. PDH 4. Cross Connect
2. SDH 5. SCC
3. Ethernet
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No Spreading without Permission. Security Level: Internal
1. Processing board(for example: PQ1)
2. Interface board(for example: D75S)
3. Optical interface board(for example:SL16)
4. Optical interface board 5. Board of other types 6. Front panel
7. E1/T1 interface board 8. Optical interface
Appearance of boards
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Confidential Information of Huawei.
No Spreading without Permission. Security Level: Internal
PDH Unit
Boards Processing Functions Interface
PQM 63 X E1/T1 2 X D75S, 2 X D12B, 2 X D12S
PQ1 63 X E1 2 X D75S, 2 X D12B, 2 X D12S
PL3 3 X E3 1 X C34S
PD3 6 X E3 1 X D34S
SPQ4 4 X E4/STM-1 1 X MU04
TSB8 8 Interface Switching & Bridging Board
TSB4 4 Interface Switching & Bridging Board
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Confidential Information of Huawei.
No Spreading without Permission. Security Level: Internal
PDH Access Unit
Principle Diagram and Signal Flow
Alarms and Performance Events Indicators
Relationship with Other Boards
Functions, Features and Applications
Course Contents
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Confidential Information of Huawei.
No Spreading without Permission. Security Level: Internal
Applications
Supports 63 both E1 and T1 signals
Provides 120 balanced E1interface and 100 balanced T1interface.
PQM
PQ1
Supports 63 E1 signals
Provides 75 unbalanced interfaceand 120 balanced interface.
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Confidential Information of Huawei.
No Spreading without Permission. Security Level: Internal
PDH Access Unit
Processing Interface
Slot Purpose Slot
1 Protection NN
2
Working
19, 20
3 21, 22
4 23, 24
5 25, 26
13 29,30
14 31, 32
15 33, 34
16 35, 36
Boards Slot Position
Processing: PQ1
Interface: D12S
D12B
D75S(DB44)
Processing: PQMInterface: D12S
D12B(DB44)
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Functions
Path Protection (PP)Sub-Network Connection Protection (SNCP)
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Functions
Maintenance Function(from NMS)
Tributary software loopback
Online pseudo-random code check function
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Major alarmsT- ALOS:No E1 signal received
Reasons:
Fault on E1 interface boardFault on the E1 Cable
Fault on switch system
TU-AIS:Reasons:
1. Incorrect cross-
connect configuration2. Fiber broken
TU-LOP:Reason:
Incorrect service configuration
Alarms
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Confidential Information of Huawei.
No Spreading without Permission. Security Level: Internal
LP-RDI:Remote defect indication
Reasons:
Alarms such as TU-AIS andTU-LOP are detected by the
remote terminal
LP-SLM , LP-TIM:Reasons:V5 or J2 mismatch
Minor alarms
LP-REI:
Remote error indicationReasons:
Bit errors are detected by
the remote terminal
Alarms
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Confidential Information of Huawei.
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Indicators
Indicator Color and status Description
Board
hardware
indicator-
STAT
On, green The board works normally.
On, red Hardware failure.
On for 100ms and offfor 100ms
alternatively, red
Hardware mismatch.
Off The board is not powered on, or the
service is not configured.
Service
activation
indicator-
ACT
On, green The service is activated. (In TPSprotection mode, the board is in
working status.)
Off The service is not activated. (In TPS
protection mode, the board is in
protection status.)
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Indicators
Indicator Color and status Description
Board
software
indicator-PROG
On, green Upload of board software to FLASH or theFPGA upload is normal, or the board software
initialization is normal.
On for 100ms and
off for 100ms
alternatively, green
Board software is being uploaded to FLASH or
FGPA.
On for 300ms andoff for 300ms
alternatively, green
The board software is initializing, and is in BIOSboot stage.
On, red The board software in FLASH or the FPGA
configuration is lost, resulting in upload and
initialization failure.
Off No power supply.
Service
alarm
indicator-
SRV
On, green Service is normal, no service alarm occurs.
On, red Critical or major alarm occurs to service.
On, yellow Minor or remote alarm occurs to service.
Off No service configured or no power supply.
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PDH Access Unit
Relationship with other boardsWith Cross connect board:
Receives/sends VC4 signalfrom/to cross connect board
Receives/sends clock signal
from/to cross connect board
Communicates with
SCC board via Lanswitch:
Reports its running information,Receives control command
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Confidential Information of Huawei.
No Spreading without Permission. Security Level: Internal
PDH Access Unit
Processing Interface
Slot Purpose Slot
2
Working
19
3 21
4 23
5 25
13 29
14 31
15 33
16 35
Boards Slot Position
Processing: PL3
Interface: C34S (SMB)
Processing: PD3
Interface: D34S (SMB)
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PDH Access Unit
Processing: SPQ4Interface: MU04
(SMB)
Processing Interface
Slot Purpose Slot
2
Working
19
3 21
4 23
5 25
13 29
14 31
15 33
16 35
Boards Slot Position
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Confidential Information of Huawei.
No Spreading without Permission. Security Level: Internal
SDH Access Unit
Boards Function
SL64 1 X STM-64
SL16 1 X STM-16
SLQ4 4 X STM-4
SLD4 2 X STM-4
SL4 1 X STM-4
SLQ1 4 X STM-1
SL1 1 X STM-1
SEP1 8 X STM-1 Processing
Interface Boards FunctionEU08 8 X STM-1 Electrical
OU08 8 X STM-1 Optical
EU04 4 X STM-1 Electrical
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Confidential Information of Huawei.
No Spreading without Permission. Security Level: Internal
SDH Access Unit
Boards Slot Position
Board 35G 60G
SL64 8/11 7/8/11/12
SL16 6~8, 11~13 5/6/7/8/11/12/13/14
SLQ4 6~8, 11~13 5/6/7/8/11/12/13/14
SLD4 6~8, 11~13 1~8, 11~17
SL4 1~8, 11~16 1~8, 11~17
SLQ1 1~8, 11~16 1~8, 11~17
SL1 1~8, 11~16 1~8, 11~17
SEP1 (Depending
on interface used)1~6, 13~16 or 2~5, 13~16
Interface
Board
Slot
EU08
(60G)19/21/
23/25/
29/31/
33/35
OU08
(60G)
EU04
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Confidential Information of Huawei.
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Principle Diagram and Signal Flow
Alarms and Performance Events
Indicators
Relationship with Other Boards
Functions, Features and Applications
SDH Access Unit
Course Contents
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SDH Access Unit
Critical AlarmsAlarms and Performance Events
R-LOS:
Loss of signalReasons:
1. Light received is too dim
2. Receiver is failed
R-LOF:Loss of frame
Reasons:
1. Clock of the upstream
station is failed2. To many bit errors
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SDH Access Unit
AU-AIS:Reason:
Service is broken at
VC4 level
MS-AIS:Reason:
Caused by critical
alarm
AU-LOP:Reasons:
1. Hardware failure
2. Incorrect service
configuration
Major Alarms
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SDH Access Unit
HP-TIM , HP-SLM:Reasons:
J1 mismatch
C2 mismatch
B1, B2, B3-EXC:Bit error excess
Reasons:
1. Optical path problem
2. Hardware failure
Minor Alarms
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SDH Access Unit
MS-RDI:Multiplex Section Remote
End Defect Indication
Reasons:Remote end detects MS-AIS
Minor Alarms HP-RDI:High-order Path Remote End
Defect Indication
Reasons:
Remote end detects HP alarms
MS-REI:Multiplex Section Remote
End Error Indication
Reasons:
Remote end detects B2 errors
HP-REI:
High-order Path Remote EndError Indication
Reasons:
Remote end detects B3 errors
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Confidential Information of Huawei.
No Spreading without Permission. Security Level: Internal
SDH Access Unit
Performanceevent
Description ofperformance
B1-BBE B1 check bit error counts
B2-BBE B2 check bit error counts
B3-BBE B3 check bit error counts
AUPJCHIGH AU pointer positive justificationcounts
AUPJCLOW AU pointer negative justificationcounts
Performance Events
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Confidential Information of Huawei.No Spreading without Permission. Security Level: Internal
SDH Access Unit
with SCC board
DCC and E1~E2
Reports its running information,
Receives control command
with XCS board
VC4 service signal
Relationship with other board
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S
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Confidential Information of Huawei.No Spreading without Permission. Security Level: Internal
SDH Access Unit
SDH A U i
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Confidential Information of Huawei.No Spreading without Permission. Security Level: Internal
SDH Access Unit
With line boards in dual slot
Pass through D1~D3, E1~E2 (only when SCC unit is not
functioning)
Pass through K1, K2 (only when MSP exists)
8 11
7
126 13
5 14
4 15
3
162 17 (60 G)
S
L
O
T
1
S
L
O
T
2
S
L
O
T
3
S
L
O
T
4
S
L
O
T
5
S
L
O
T
6
S
L
O
T
7
S
L
O
T
8
S
L
O
T
9
S
L
O
T
1
0
S
L
O
T
1
1
S
L
O
T
1
2
S
L
O
T
1
3
S
L
O
T
1
4
S
L
O
T
1
5
S
L
O
T
1
6
S
L
O
T
1
7
S
C
C
Fiber Routing
S
L
O
T
1
8
S
C
C
FAN FAN FAN
Eth t i t f U it
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Ethernet interface Unit
Board Function Slot35G 60G
EGS2
2 X Gigabit Ethernet
Optical Interface with
Lanswitch
6~8,
11~13
5~8,
11~14
EFS44 X Fast Ethernet RJ-45
Interface with Lanswitch
1~8,
11~16
1~8,
11~17
EFS0Fast Ethernet with
Lanswitch2~5, 13~16
Board Interface Slot
ETF8 19/21/23/25/29/31/
33/35
Eth t i t f U it
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Ethernet interface Unit
Function:
1. Provides 2 LC 1000BASE-SX/LX Ethernet optical
interfaces
2. Support bandwidth adjustment at granularity of 64kbit/s and
service mapping into VC-12 or VC-3 level
3. Supports LCAS
4. Supports the Ethernet Layer 2 switching, RSTP and point-
to-point and point-to-multipoint, MPLS, VPN
Eth t i t f U it
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Ethernet interface Unit
Function:
5. Supports VLAN and VLAN convergence
6. Supports Layer 2-based convergence and point-to-multipoint
convergence
7. Supports the port-based and port + VLAN-based flow
classification, and the priority setting and queue adjusting of flow
8. Supports IEEE802.3x-compliant flow control
9. Supports inloop and outloop
10.Provides abundant alarm and performance events
Eth t i t f U it
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Ethernet interface Unit
Front panel and indicator description of EGS2
Indicator status description
Indicator Color and status Description
Board hardware
indicator-STAT
On, green The board works normally.
On, red The board hardware fails.
On for 100ms and off for
100ms alternatively, red
The board hardware is mismatched.
Off The board is not powered on, or the
service is not configured.
Service
activation
indicator-ACT
On, green The service is activated.
Off The service is not activated.
Eth t i t f U it
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Ethernet interface UnitFront panel and indicator description of EGS2
Indicator status description
Indicator Color and status Description
Board
software
indicator-
PROG
On, green Upload of board software to FLASH or the
FPGA upload is normal, or the board
software initialization is normal.
On for 100ms and off for
100ms alternatively,
green
Board software is being uploaded to FLASH
or FGPA
On for 300ms and off for
300ms alternatively,
green
The board software is initializing, and is in
BIOS boot stage.
On, red The board software in FLASH or the FPGA
configuration is lost, resulting in upload and
initialization failure.
Off No power supply.
Eth t i t f U it
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Ethernet interface UnitFront panel and indicator description of EGS2
Indicator status description
Indicator Color and status Description
Service
alarm
indicator-SRV
On, green Service is normal, no service alarm occurs.
On, red Critical or major alarm occurs to service.
On, yellow Minor or remote alarm occurs to service.
Off No service configured or no power supply.
LINK 1, 2
On, green The GE port is connected with the opposite
equipment, and the link is established.
Off The GE port is not connected with the opposite
equipment, and the link is not available.
ACT 1, 2
On for 100ms and off
for 100ms alternatively,
orange
There are data exchanged between the GE port
and opposite equipment.
Off There are no data exchanged between the GE
port and opposite equipment.
Eth t i t f U it
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Ethernet interface Unit
The front panel of EFS0, EFS4 and ETF8
Eth t i t f U it
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Ethernet interface Unit
Indicator Color and status Description
Board
hardware
indicator-
STAT
On, green The board works normally.On, red The board hardware fails.
On for 100ms and
off for 100ms
alternatively, red
The board hardware is mismatched.
Off The board is not powered on, or the service isnot configured.
Service
activation
indicator-
ACT
On, green The service is activated.
Off The service is not activated.
Service
alarm
indicator-
SRV
On, green Service is normal, no service alarm occurs.
On, red Critical or major alarm occurs to service.
On, yellow Minor or remote alarm occurs to service.
Off No service configured or no power supply.
Eth t i t f U it
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Ethernet interface Unit
Indicator description of EFS0, EFS4
Indicator Color and status Description
Board
software
indicator-
PROG
On, green
Upload of board software to FLASH or the FPGA
upload is normal, or the board software
initialization is normal.
On for 100ms and
off for 100msalternatively, green
Board software is being uploaded to FLASH orFGPA
On for 300ms and
off for 300ms
alternatively, green
The board software is initializing, and is in BIOS
boot stage.
On, redThe board software in FLASH or the FPGAconfiguration is lost, resulting in upload and
initialization failure.
Off No power supply.
Cross connection
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and clock board
We w i l l discuss about the two parts of the board:
Cross-connect uni t and clock uni t
Principle Diagram and Signal Flow
Alarms and Performance Events
Indicators
Relationship with Other Boards
Functions, Features and Applications
Cross connection
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and clock board
Comparison between GXCS and EXCSA/B
Board nameGXCSA
(General XC A)
EXCSA
(Enhanced XCA)
EXCSB
(Enhanced XCB)
Higher order XC
capacity35G 58.75G 60G
Lower order XC
capacity5G 5G, can expand to 20G
Extended subrack
capacity 0 1.25G
Configuration
method of clockSoftware configuration
Cross connection
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and clock UnitPrinciple block diagram of GXCS/EXCS.
5G
lower-order
cross-connect
matrix
35G or 60G4
higher-order
cross-connect
matrix
Timing
unit
Control and
communication unit
Cross-connect Unit
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XC Unit
Functions and Features
Applications
1. Cross-connection:
VC-12, VC-3 and VC-4
AU4-4C, AU4-8C, AU4-16C and AU4-64C
2. Network Protection Control:SNCP at VC-3 & VC-12, MSP
3. Detects Tributary Board faults and Controls TPS
1+1 hot backup mode
Cross connection
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and clock Unit
Critical alarm
Alarms and Performance Events
TEMP-OVER
Reason:
Operation temperature
over limit
PS
Reason:
Multiplex section protection
has been taking place
Major alarm
ross connec ond l k U it
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and clock Unit
Relationship with other boards
With SCC
Gets control commands
Sends running information
With access boards
Gets/sends VC4 signals
Gets SNCP information
Cross connection
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and clock Unit
In master/slave mode,
master NE uses externalclock or internal
clock, and slave NEstrace the master NE
Synchronization modes(of system)
Cross connectiond l k U i
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and clock Unit
Working modes of clock unit
Normal
Timing signals is ok
HoldoverFrequency information
stored, holding for 24h
Free-run
Internal clock
Cross-connect UnitCl k U it
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Clock Unit
Functions and Features
1. System Internal Clock
2. Traces 2 clock signal channels from external
timing signals
3. Provides 2 clock signal channels to outsidesystems
4. Supports 2 synchronous clock signal input &
2 synchronous clock signal output of 2MHz or
2Mbit/s interfaces.
5. Processes SSM (S1) and Clock ID6. Controls TPS switch
Cross connectiond l k U it
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and clock Unit
Major alarms
Alarms and Performance Events
EXTSYNLOS
Reason:Loss of external
synchronization source
LTIReason:
Loss of all synchronization
sources
S1-SYN-CHANGEReason:
Synchronization source
switches under S1 byte mode
Critical alarm
Cross connectiond Cl k U it
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and Clock Unit
Cross connection
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and clock Unit
SYNC-LOSReasons:
Loss of synchronization
source of higher class
SYN-BADReasons:
Deterioration of the
synchronization source
Minor alarms
Cross connectiond l k U it
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and clock UnitIndicator description of GXCS/EXCS
Indicator Color and status Description
Board
hardware
indicator-
STAT
On, green The board works normally.
On, red The board hardware fails.
On for 100ms and off for
100ms alternatively, red
The board hardware is mismatched.
Off The board is not powered on.
Service
activation
indicator-
ACT
On, green The active GXCS/EXCS is working.
Off The standby GXCS/EXCS is working.
Cross connectiond l k U it
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and clock UnitBoard software
indicator- PROG
On, green Upload of board software to FLASH or the
FPGA upload is normal, or the board
software initialization is normal.On for 100ms and off for
100ms alternatively, green
Board software is being uploaded to FLASH
or FGPA
On for 300ms and off for
300ms alternatively, green
The board software is initializing, and is in
BIOS boot stage.
On, red The board software in FLASH or the FPGA
configuration is lost, resulting in upload andinitialization failure.
Off No power supply.
Service alarm
indicator-SRV
On, green Service is normal, no service alarm occurs.
On, red Critical or major alarm occurs to service.
On, yellow Minor or remote alarm occurs to service.
Off No service is configured.
Synchronization
clock indicator-
SYNC
On, green The clock works in synchronous status.
On, red The clock works in hold-over or free-run
mode.
SCC Board
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SCC Board
Functions:
SEMF:
Manages local equipment
MCF:
1. Communicates with other
NEs by D1-D3
2. Communicates with NM
through OAM interface
System control
Orderwire
Inter-board communication System power monitoring
Support 1+1 hot backup
protection
SCC Unit
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SCC Unit
Slots available:
35 G Config Slots 17 & 18
60 G Config Slots 17 (Opt) & 18
Interfaces related to SCC Board are
on AUX Board
SCC Board
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SCC Board
The principle block diagram of SCC
Serial 1~4
F1
F&f
OAM
50 DCCs (D1 ~ D3)
Power
monitoringmodule
1 orderwire phone4 cabinet alarm indicator interfaces
AUX backup power alarm detectionFAN alarm detection and manageme
PIU alarm detection and managemen
485 communication bus
NM interface
Control moduleCommunication
module
Overhead
processingmodule
16 Boolean input interfaces and
4 Boolean output interfaces
2 SDH NNI phones
SCC Board
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SCC Board
Software Function
Boots the system,
loads and upgrades host software
Self-checks the SCC hardware DCC communication
Accomplishes real time
supervision, maintenance and
management
SCC Board
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Applications
ID is the only identification for an NE
ID is configured in range of 1 ~ 49136 with software
The default value of ID is 0 x BFF0 (49136)
SCC Board
SCC Board
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MDB (like RAM in PC)
In dynamic RAM
Automatically saves the current data
If power fails, the data in MDB will be lost
DRDB (like HD in PC)
Automatically saves the successfully verified data
Saves the data in flash RAM
The battery provides power
FDB0, FDB1 (like floppy disk in PC)
Manually saves the data
Enduringly saves data and does not need battery
SCC Board
Four databases on the SCC:
MDB
DRDB
issued data
verify
Board
running
FDB0
FDB1
manual save
Installing
success
fail
SCC Board
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SCC Board
Modem Connection
SCC Board
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SCC Board
NEA
NEB
NEC
DCN
ROUTER
NMTerminal ROUTE
WAN Connection
SCC Board
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SCC Board
Name Description and reason Severity
NESTATE_INSTALL NE state install Critical
HARD_BAD Hardware fails Critical
POWER_FAIL Power failure Major
APS_MANUAL_STOP APS manual stop Minor
WRG_BD_TYPE Wrong inserted board type Minor
NE_SF_LOST It lacks a set of host software Warning
Alarm List
SCC Board
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SCC Board
What information will be reported to SCC
from an SDH board?
Why SCC board needs timing signals?
Relationship with other boards
SCC Board
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SCC Board
Front panel of SCC
Switch description on SCC
Switch name RESET ALMCUT
Function
descriptionReset button
Alarm cut
off Button
SCC Unit
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Indicator Color and status Description
Board
hardwareindicator -
STAT
On, green The board works normally.
On, red The board hardware fails.
On for 100ms and
off for 100msalternatively, red
The board hardware ismismatched.
Off
The board is not powered
on, or service is not
configured.
Service
activation -
ACT
On, green Active status.
Off Standby status.
Indicator description SCC Board
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SCC Unit
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SCC Unit
Indicator Color and status DescriptionIndicator for -48V
power supply A -
PWRA
On, green -48V power supply A is normal
On, red or off-48V power supply A is faulty (lost or
fails)
Indicator for -48V
power supply BPWRB
On, green -48V power supply B is normal
On, red -48V power supply B is faulty (lost orfails)
Indicator for 3.3V
power supply C
PWRC
On, green 3.3V Protection power is normal
On, red 3.3V Protection power is lost
Alarm cut
indicator-
ALMC
On, green Currently in permanent alarm cut-offstatus
OffAudible sound present for critical
alarm
Indicator description of SCC board
Contents
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Rack and Related Parts
Sub-rack
Circuit Boards
Auxiliary Parts
Auxiliary parts
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y p
1. Auxiliary Interface Unit
2. Power Interface Unit
3. Fan Unit4. Optical Amplifying Boards
5. Dispersion Compensation Unit
Auxiliary Interface Unit
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y
AUX Board
Slot available: 37
Functions: Back up Power Supply for boards
Interfaces for:
1. 10M/100M Lanswitch (NMS)2. Orderwire
3. Clock Input/Output
Auxiliary Interface Unit
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y
75ohm clock IN 1
75ohm clock IN 2
75ohm clock OUT 1
75ohm clock OUT 2
120ohm clock 2
NM port
COM test port
Extension subrack port
4 cabinet indicators
cabinet indicators concatenation
Alarm concatenation
Boolean alarm output 1~4
Alarm input 1~4
Alarm input 5~8
Alarm input 9~12
Alarm input 13~16
120ohm clock 1
Reserved
F&f
Orderwire phone
SDH NNI telephone 1
SDH NNI telephone 2
OAM
Series 1
Series 2
Series 3
Series 4
F1
Indicator STAT
Indicator description AUX Board
Indicator Color Meaning
Board
hardware
indicator -
STAT
On,
Green
+3.3V Power
Supply is normal.
On, Red +3.3V powersupply is abnormal
and the AUX board
is fed with the back
up power.
Off Both the +3.3Vworking power and
backup power fail.
No power on board.
Power Interface Unit
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PIU Power interface board, seated in Slot 27 and 28
Functions: Power access
Lightening protection and filtering
2 X 50W power interfaces for
some devices (Hub) 1+1 Hot Back up protection
PIU front panel
-48V power supply interface
Two 50W power interfaces
for devices such as COA,
TDA and HUB
FAN Unit
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Function and features:
3 Fans supporting hot swapping
Automatically adjust fan speed
Turns off fans at low Temp
Indicator Color Description
Operation
status
indicator-STAT
On,
green
The fan operates
normally.
On, red
The fan, fan power
board or FAN is
abnormal.
On,
yellow
The fan is turned off
due to low
temperature.
Amplifying Boards
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p y g
Functions:
BA2
2 pairs LC type connector
2 Optical Power Amplifier output
Transmit power amplification of +14dBm or + 17dBm
Transmission distance 120 ~ 130 Km
BA2: Optical Booster Amplifier
Amplifying Boards
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y g
BPA: Optical Booster & Pre-amplifier
Functions:BPA
2 pairs LC type connector
1 Optical amplifier output 1 Optical pre-amplifier for
reception
Transmit power amplification
of +14 dBm or + 17dBm
Increase receiver sensitivity
Support signal power gain of
22 ~ 25 dB
Amplifying Boards
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Tx BA Rx
Tx PA Rx
Amplifying boards positions in a network
Can be inserted in Slots 1 ~ 8, 11 ~ 17
Transmitting
Station
Receiving
Station
Dispersion Compensation Unit
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DCU: Dispersion Compensation Unit
Functions: 2 pairs LC for 2 X 10Gbit/s signals dispersion
compensator
Used at receiving station when transmitted distance
exceeds 80 km Inserted in Slots 1~8, 11~17
Tx BA RxPA DCU
1550.12 nm 1550.12 nm
Summary
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Rack and Related Parts
Sub-rack
Circuit Boards Auxiliary Parts
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