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ZXG10 BSSBase Station Subsystem
Alarm Handling Manual
Version 6.20
ZTE CORPORATIONZTE Plaza, Keji Road South,Hi-Tech Industrial Park,Nanshan District, Shenzhen,P. R. China518057Tel: (86) 755 26771900 800-9830-9830Fax: (86) 755 26772236URL: http://support.zte.com.cnE-mail: [email protected]
http://support.zte.com.cn/mailto:[email protected]:[email protected]://support.zte.com.cn/
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LEGAL INFORMATION
Copyright © 2006 ZTE CORPORATION.
The contents of this document are protected by copyright laws and international treaties. Any reproduction ordistribution of this document or any portion of this document, in any form by any means, without the prior writtenconsent of ZTE CORPORATION is prohibited. Additionally, the contents of this document are protected bycontractual confidentiality obligations.
All company, brand and product names are trade or service marks, or registered trade or service marks, of ZTECORPORATION or of their respective owners.
This document is provided “as is”, and all express, implied, or statutory warranties, representations or conditionsare disclaimed, including without limitation any implied warranty of merchantability, fitness for a particular purpose,title or non-infringement. ZTE CORPORATION and its licensors shall not be liable for damages resulting from theuse of or reliance on the information contained herein.
ZTE CORPORATION or its licensors may have current or pending intellectual property rights or applicationscovering the subject matter of this document. Except as expressly provided in any written license between ZTECORPORATION and its licensee, the user of this document shall not acquire any license to the subject matter
herein.
ZTE CORPORATION reserves the right to upgrade or make technical change to this product without further notice.
Users may visit ZTE technical support website http://ensupport.zte.com.cn to inquire related information.
The ultimate right to interpret this product resides in ZTE CORPORATION.
Revision History
Date Revision No. Serial No. Reason for Issue
Aug. 29, 2008 R1.0 sjzl20083213 First edition
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Your opinion is of great value and will help us improve the quality of our productdocumentation and offer better services to our customers.
Please fax to: (86) 755-26772236; or mail to Technical Delivery Department, ZTEUniversity, Dameisha, Yantian District, Shenzhen, Guangdong, P.R. China 518083.
Thank you for your cooperation!
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ZXG10 BSS (V6.20) Base Station Subsystem Alarm Handling Manual
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R1.0
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Contents
About This Manual ............................................................ i
Purpose ................................................................................. i
Intended Audience .................................................................. i
Prerequisite Skill and Knowledge ............................................... i
What Is in This Manual ............................................................. i
Related Documentation ........................................................... ii
Conventions ......................................................................... iii
How to Get in Touch .............................................................. iv
Declaration of RoHS Compliance ..................................... v
Chapter 1 ......................................................................... 1
Alarm Message Summary ............................................... 1
Alarm Code Definition ....................................................... 1
Alarm Severity Level ............................................................... 1
Alarm Handling ................................................................ 2
Alarm Classification ................................................................ 3
Chapter 2 ......................................................................... 5
Alarm Messages .............................................................. 5
Equipment Alarms............................................................ 5
Loss of Optical Transceiver Module Signal .................................. 5
Ethernet Controller's Physical Link Off ....................................... 6 Trunk Link Is Used for CSU Loopback Test ................................. 6
Cell Delineation Not Synchronized ............................................ 7
Loss of Cell Delineation ........................................................... 7
8K input clock lose ................................................................. 7
16M Input Clock Lose.............................................................. 8
PP2S Clock Input Lose ............................................................ 8
32M Clock lost in TSNB ........................................................... 8
Clock Phase Does not Match When Inputting 8k,16M Clock toBackboard ............................................................................. 9
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Clock Chip of This Board Is in Preheat Status ............................ 9
Loss of Clock When Input to Board ........................................... 9
SDH/SONET fault ................................................................... 9
SDH/SONET:Loss of Frame ....................................................10 SDH/SONET: Regenerator Section Trace Mismatch/Section Trace
Mismatch .............................................................................10
SDH/SONET:MS-AIS,Line Alarm Indication Signal .....................11
SDH/SONET:Multiplexing Section Far-end Reception Failure/LineFar-end Reception Failure ......................................................11
SDH/SONET:Signal Failure .....................................................12
SDH/SONET:Signal Deterioration ............................................12
SDH/SONET:Loss of AU-4 Pointer/Loss of Channel Pointer .........13
SDH/SONET:AU-AIS/Channel-AIS ...........................................13
SDH/SONET:HP-Trace Mismatch/ Patch Trace Mismatch ............13
SDH/SONET:HP Unassembled/Path Unassembled .....................14
DH/SONET:HP Label Mismatch/Path Label Mismatch .................14
SDH/SONET:HP Remote Reception Failure ...............................15
SDH/SONET:LOM ..................................................................15
SDH/SONET: Loss of TU Pointer/Loss of Virtual Tributary Pointer 15
SDH/SONET:Tributary Unit Alarm Indication Signal/VirtualTributary Alarm Indication Signal ............................................16
SDH/SONET:LP Remote Defect Indication/Virtual Tributary Remote
Defect Indication ..................................................................16 SDH/SONET:LP-RFI/Virtual Tributary-RFI .................................17
SDH/SONET:LP-Trace Mismatch/ Virtual Tributary Trace Mismatch..........................................................................................17
SDH/SONET:LP-Unloaded/Virtual Tributary Unloaded ................18
SDH/SONET:LP Label Mismatch/Virtual Tributary Label Mismatch18
SDH:VC-4 Signal Failure ........................................................19
SDH:VC-4 Signal Deterioration ...............................................19
SDH/SONET:Severe B1 Error Code .........................................20
SDH/SONET:Severe B2 Error Code .........................................20 SDH/SONET:Severe B3 Error Code .........................................21
SDH/SONET:Severe BIP-2 Error Code .....................................22
SDH/SONET:MS-Remote Error Indication .................................22
SDH/SONET:HP-Remote Error Indication .................................23
SDH/SONET:HP Signal Failure ................................................23
SDH/SONET:HP Signal Deterioration .......................................24
E3S subcar transmitter direction loss of signal ..........................25
Signal of Receiving End of E3S Daughter Card is Lost ................25
OFF Alarm............................................................................25
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E3S Daughter Card Receives Alarm Signal Indication ................ 26
Remote Failure Indication ...................................................... 26
Board CPU overloaded .......................................................... 27
Excess Temperature of CPU on Board ..................................... 27 Board FLASH faults ............................................................... 28
Inter-shelf media plane links abnormal ................................... 28
Capacity of intra-shelf control plane TRUNK communication isinsufficient .......................................................................... 29
Incorrect Connection of GE Optical Transceiver Module with BoardSlots on Peer-end ................................................................. 29
Internal Port of Board Is Down ............................................... 30
Board Doesn't Exist/ CPU is Long in Reset Status ..................... 30
Input Clock Abnormal ........................................................... 31
A (CPU) Subcard Is Online, but Is not Configured in Database ... 31
A (CPU) Subcard Is not Online, but Has Been Configured byDatabase ............................................................................. 32
External Port of Board Is Down .............................................. 32
Exceptional Internal Media Plane Communication ..................... 33
DSP Resource Unavailable ..................................................... 33
Usage Rate of Board Hard Disk above Threshold ...................... 34
Hard Disk Broken ................................................................. 34
TRUNK port down ................................................................. 35
Broad Not Tightly Inserted..................................................... 35
SMBUS Error ........................................................................ 35
Error in Rear Board That Mismatches With Front Board ............. 36
LVDS Signal Unlocked ........................................................... 36
High Error Rate of Optical Interface ........................................ 36
FPGA Exception .................................................................... 37
Port Link Down .................................................................... 37
Hardware Reliability Down ..................................................... 37
PLL Work Mode Abnormal ...................................................... 38
The Channel in a Subcard Is Down ......................................... 38
Subcard Abnormal ................................................................ 38
Phase-lock Loop Unlock ......................................................... 39
High Error Rate at E1 Bottom Layer ........................................ 39
Control Plane Ports of Backplane Joining Switching Chip IsExceptional .......................................................................... 39
Type A Fault on Board (GPS) Phase-lock Equipment ................. 40
Type B Fault on Board (GPS) Phase-lock Equipment ................. 40
Phase-lock Equipment of This Board (GPS) Is in Power-on Status
.......................................................................................... 40
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DSP Reports Exceptions After Detection ...................................41
Loss of Clock When Input to Sub-card .....................................41
Error of LVDS Path Frame Detection ........................................41
Tier1 Network Link Loopback Diagnosis Failure .........................42 Physical link down between master port and slave port .............42
Media interactive GE port link down ........................................43
Board device is abnormal .......................................................43
Cx29704 Runs Abnormally .....................................................43
Physical Channel for Data Transmission Blocked .......................43
2350 receive hardware error ..................................................44
Fe IMA Group is in config-aborted state (because of unmatchedFrame length) ......................................................................44
All High-Speed Links Between Line Card and Package SwitchingBoard Are out of Synchronism ................................................45
APS Channels Mismatched .....................................................45
APS Modes Mismatched .........................................................46
Board Resets for APS Configuration Changes ............................46
No Response to Requesting Database for Secondary ForwardingTable Information .................................................................47
No Response to Requesting the System for Secondary ForwardingTable Port Information...........................................................47
Resource board Unable to Get Secondary Forwarding Table fromUIM.....................................................................................48
Internal Connection Chip Faults of TSNB ..................................48
Semi-Fixed Connection Error ..................................................48
CLKG 32M output clock lost ....................................................49
CLKG 32M8K output clock lost ................................................49
CLKG 16M output clock lost ....................................................49
CLKG 16M8K output clock lost ................................................50
CLKG PP2S Output Clock Lost .................................................50
PP2S clock reference lost .......................................................50
16CHIP clock reference lost ....................................................51 All clock bases had lost ..........................................................51
CLKG I2MB0 clock base lost ...................................................51
CLKG I2MB1 clock base lost ...................................................51
CLKG I2MHZ0 clock base lost .................................................52
CLKG I2MHZ1 clock base lost .................................................52
CLKG I8KBASE clock base lost ................................................52
CLKG I8KGPS clock base lost ..................................................52
CLKG I8KUIM clock base lost ..................................................53
Clock reference source lost (Level 3 alarm) ..............................53
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Clock reference source lost (Level 2 alarm) ............................. 53
Clock reference source lost (Level 1 alarm) ............................. 54
Clock Base Lost .................................................................... 54
CLKG board PLL out-of-lock ................................................... 54 Output clock lost .................................................................. 54
DSP over load ...................................................................... 55
80g chip abnormal ................................................................ 55
SCCP SSN is invalid .............................................................. 55
Broadband link congestion ..................................................... 56
Broadband link overload ........................................................ 57
MTP2 link transmission overload............................................. 57
MTP3 office inaccessible ........................................................ 58
MTP3 link unavailable ........................................................... 59
MTP3 cluster inaccessible ...................................................... 60
MTP3 link congestion ............................................................ 60
M3UA office inaccessible ........................................................ 61
SUA SSN is invalid ................................................................ 62
SUA office inaccessible .......................................................... 63
M2PA Link Broken ................................................................ 64
BSC IP configuration error ..................................................... 65
T-net center fault ................................................................. 65
EPU and RPU Version Not Match ............................................. 65
Abnormal Status in SDH/SONET ............................................. 66
SDH/SONET:Excessive Error Code .......................................... 66
ATM Communication Abnormally ............................................ 67
MCC Abnormal ..................................................................... 67
MS APS Channel gets errors .................................................. 67
Dry Contact Alarm 1 ............................................................. 68
Dry Contact Alarm 2 ............................................................. 68
Dry Contact Alarm 3 ............................................................. 68
Dry Contact Alarm 4 ............................................................. 69
Dry Contact Alarm 5 ............................................................. 69
Dry Contact Alarm 6 ............................................................. 69
Dry Contact Alarm 7 ............................................................. 69
Dry Contact Alarm 8 ............................................................. 70
Dry Contact Alarm 9 ............................................................. 70
Dry Contact Alarm 10 ........................................................... 70
Dry Contact Alarm 11 ........................................................... 70
Dry Contact Alarm 12 ........................................................... 71
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EAM Dry Contact Alarm 1.......................................................71
EAM Dry Contact Alarm 2.......................................................71
EAM Dry Contact Alarm 3.......................................................71
EAM Dry Contact Alarm 4.......................................................72 EAM Dry Contact Alarm 5.......................................................72
EAM Dry Contact Alarm 6.......................................................72
EAM Dry Contact Alarm 7.......................................................72
EAM Dry Contact Alarm 8.......................................................73
CMM/CMB FLASH programming failure ....................................73
Power overvoltage/undervoltage alarm ....................................73
13M input clock failure ..........................................................73
Frame No. inconsistent between software and hardware ............74
FCLK clock failure .................................................................74
SYNCLK clock failure .............................................................74
Master and slave communication link failure.............................75
Standby CMM/CMB board not present......................................75
Standby CMM/CMB board abnormal ........................................75
CMM/CMB power failure alarm ................................................76
A interface E1 Rx carrier alarm ...............................................76
A interface E1 Rx frame not synchronized ................................76
A interface E1 Tx forward sliding indication ..............................77
A interface E1 Tx backward sliding indication ...........................78
A interface E1 Rx forward sliding indication ..............................78
A interface E1 Rx backward sliding indication ...........................79
B interface E1 Rx carrier alarm ...............................................80
B interface E1 Rx frame not synchronized ................................80
B interface E1 Tx forward sliding indication ..............................81
B interface E1 Tx backward sliding indication ...........................82
B interface E1 Rx forward sliding indication ..............................82
B interface E1 Rx backward sliding indication ...........................83
C interface E1 Rx carrier alarm ...............................................83
C interface E1 Rx frame not synchronized ................................84
C interface E1 Tx forward sliding indication ..............................85
C interface E1 Tx backward sliding indication ...........................85
C interface E1 Rx forward sliding indication ..............................86
C interface E1 Rx backward sliding indication ...........................87
D interface E1 Rx carrier alarm ...............................................87
D interface E1 Rx frame not synchronized ................................88
D interface E1 Tx forward sliding indication ..............................88
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D interface E1 Tx backward sliding indication ........................... 89
D interface E1 Rx forward sliding indication ............................. 90
D interface E1 Rx backward sliding indication ........................... 90
E interface E1 Rx carrier alarm ............................................... 91 E interface E1 Rx frame not synchronized ................................ 92
E interface E1 Tx forward sliding indication .............................. 92
E interface E1 Tx backward sliding indication ........................... 93
E interface E1 Rx forward sliding indication .............................. 93
E interface E1 Rx backward sliding indication ........................... 94
F interface E1 Rx carrier alarm ............................................... 95
F interface E1 Rx frame not synchronized ................................ 95
F interface E1 Tx forward sliding indication .............................. 96
F interface E1 Tx backward sliding indication ........................... 97
F interface E1 Rx forward sliding indication .............................. 97
F interface E1 Rx backward sliding indication ........................... 98
G interface E1 Rx carrier alarm .............................................. 98
G interface E2 Rx frame not synchronized ............................... 99
G interface E1 Tx forward sliding indication ........................... 100
G interface E1 Tx backward sliding indication ......................... 100
G interface E1 Rx forward sliding indication ........................... 101
G interface E1 Rx backward sliding indication ......................... 102
H interface E1 Rx carrier alarm ............................................ 102
H interface E3 Rx frame not synchronized ............................. 103
H interface E1 Tx forward sliding indication............................ 103
H interface E1 Tx backward sliding indication ......................... 104
H interface E1 Rx forward sliding indication ........................... 105
H interface E1 Rx backward sliding indication ......................... 105
Temperature alarm ............................................................. 106
Fan absent ........................................................................ 106
Fan control board CPU alarm ............................................... 107
Fan control board CPU alarm ............................................... 107
Fan temperature alarm ....................................................... 108
Fan 1 alarm ....................................................................... 108
Fan 2 alarm ....................................................................... 109
Fan control board alarm ...................................................... 109
LNA alarm ......................................................................... 110
Tower amplifier power alarm ............................................... 110
SWR of AEM HYCOM minor alarm ......................................... 110
SWR of AEM HYCOM major alarm ......................................... 111
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AEM power alarm(BTS V2) ................................................... 111
AEM type alarm(BTS V2) ..................................................... 111
AEM absent(BTS V2) ........................................................... 112
AEM power alarm ................................................................ 112 LNA0 alarm ........................................................................ 112
LNA1 alarm ........................................................................ 113
Tower Amplifier0 power alarm .............................................. 113
Tower Amplifier1 power alarm .............................................. 113
SWR of AEM HYCOM minor alarm .......................................... 113
SWR of AEM HYCOM major alarm.......................................... 114
AEM type alarm .................................................................. 114
AEM Not-in-position alarm ................................................... 115
CHP DSP0 of TPU initialization failure(BTS V2) ........................ 115
CHP DSP1 of TPU initialization failure .................................... 115
CHP DSP2 of TPU initialization failure .................................... 116
CHP DSP3 of TPU initialization failure .................................... 116
Uplink of ADC chip initialization failure ................................... 117
Uplink of ADC resource can't be used .................................... 117
CIP resource can't be used ................................................... 117
Uplink failure ...................................................................... 118
TPU FLASH Memory failure(BTS V2) ...................................... 118
Watchdog of TPU CHP DSP0 overflow(BTS V2)........................ 118
Watchdog of TPU CHP DSP1 overflow .................................... 119
Watchdog of TPU CHP DSP2 overflow .................................... 119
Watchdog of TPU CHP DSP3 overflow .................................... 120
Watchdog of FUC overflow ................................................... 120
CIP of TPU initialization failure .............................................. 120
Watchdog of TPU CIP overflow .............................................. 121
Clock alarm for TPU and CMM ............................................... 121
TPU power alarm(BTS V2).................................................... 122
TPU frame No. alarm ........................................................... 122
TPU CHP DSP0 initialization failure ........................................ 122
ADC resource unavailable .................................................... 123
CHP frame error ................................................................. 123
BURST interrupt error.......................................................... 123
TPU FLASH memory failure .................................................. 124
TPU CHP DSP0 watchdog overflow ........................................ 124
CU intialization failure ......................................................... 125
TPU power alarm ................................................................ 125
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TPU's FN alarm .................................................................. 125
Rx PLL1 unlock................................................................... 126
Rx PLL2 unlock................................................................... 126
Tx PLL1 unlock ................................................................... 126 Tx PLL2 unlock ................................................................... 126
52M referenced clock PLL unlock .......................................... 127
Tx IF PLL unlock ................................................................. 127
EEPROM resource can't be used ........................................... 127
FPGA interface failure ......................................................... 128
PA VSWR alarm(BTS V2) ..................................................... 128
PA overtemperature minor alarm(BTS V2) ............................. 128
PA overtemperature major alarm(BTS V2) ............................. 129
PA output power alarm ....................................................... 129
PA power overvoltage ......................................................... 130
PA power lower voltage ....................................................... 130
Downlink checksum error of DLRC_AL1 ................................. 130
DUC chip initialization failure ............................................... 130
80w PA VSWR alarm ........................................................... 131
80w PA overtemperature ..................................................... 131
80w PA overtemperature major alarm ................................... 131
80w PA output power alarm ................................................. 132
80w PA power overvoltage .................................................. 132
80w PA power lower voltage ................................................ 133
80w PA absent ................................................................... 133
TXIF unlock ....................................................................... 133
TPF unlock ......................................................................... 133
TXRF unlock ...................................................................... 134
RXRF unlock ...................................................................... 134
13 MHz clock lost ............................................................... 134
60 ms clock lost ................................................................. 135
8M clock of HW lost ............................................................ 135
8K clock of HW lost ............................................................. 135
52 MHz clock lost ............................................................... 136
First ADC clock lost ............................................................. 136
Second ADC clock lost ......................................................... 136
PA power overvoltage alarm ................................................ 137
PA power undervoltage alarm .............................................. 137
PA VSWR alarm .................................................................. 137
PA temperature minor alarm ................................................ 138
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PA temperature major alarm ................................................ 138
PA forward power(3db) alarm ............................................... 139
RTU power alarm ................................................................ 139
RTU power temperature alarm .............................................. 139 RTU power output overvoltage alarm .................................... 140
RTU power input failure alarm .............................................. 140
IQ calibration parameters abnormal alarm ............................. 140
EAM heat exchanger alarm .................................................. 140
EAM TRX layer fan-4 alarm .................................................. 141
EAM AEM layer axis-flow fan alarm ....................................... 141
EAM smoke alarm ............................................................... 141
EAM waterproof alarm ......................................................... 141
EAM lightning protection alarm ............................................. 142
EAM backdoor access control alarm ....................................... 142
EAM frontdoor access control alarm ...................................... 142
EAM PWR monitoring unit alarm ........................................... 142
EAM heat exchanger electric heater alarm.............................. 143
EAM heat exchanger control board alarm ............................... 143
EAM heat exchanger external circulation fan 2 alarm ............... 143
EAM heat exchanger external circulation fan 1 alarm ............... 144
EAM heat exchanger internal circulation fan 2 alarm ............... 144
EAM heat exchanger internal circulation fan 1 alarm ............... 144
EAM heat exchanger 485 communication alarm ...................... 145
EAM temperature alarm ....................................................... 145
EAM TRX layer mixed-flow fan 1 alarm .................................. 145
EAM TRX layer mixed-flow fan 2 alarm .................................. 146
EAM TRX layer mixed-flow fan 3 alarm .................................. 146
Power undervoltage alarm ................................................... 146
Inner fan 2 alarm (for M8202) .............................................. 146
Inner fan 1 alarm (for M8202) .............................................. 147
Outer fan 2 and fan 4 alarm (for M8202) ............................... 148
Outer fan 1 and fan 3 alarm (for M8202) ............................... 148
Rack temperature minor alarm ............................................. 149
Rack temperature major alarm ............................................. 149
Layer 3 fan 1 alarm (for M8206) ........................................... 149
Layer 3 fan 2 alarm (for M8206) ........................................... 150
Layer 3 fan 3 alarm (for M8206) ........................................... 150
Layer 2 fan 1 alarm (for M8206) ........................................... 150
Layer 2 fan 2 alarm (for M8206) ........................................... 151
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CCI opposite board alarm .................................................... 163
IQ FPGA internal clock alarm ................................................ 164
IQ FPGA light interface alarm ............................................... 164
IQ FPGA LVDS interface alarm .............................................. 164 IQ FPGA internal data alarm ................................................. 164
13M,61.44M clock lost alarm ................................................ 165
60ms clock lost alarm ......................................................... 165
26MHz and 52MHz lost of clock alarm .................................... 165
the failure examination alarm of the 60ms uplink frame .......... 166
checking block data error alarm ............................................ 166
up link LVDS SERDES lost lock alarm .................................... 166
FN error alarm .................................................................... 167
receiving channel frequent alarm .......................................... 167
transmiting channel frequent alarm ....................................... 167
the lost alarm of 60ms ........................................................ 167
output power less than 6DB ................................................. 168
HYCOM major alarm ............................................................ 168
the input power is abnormal ................................................. 168
out of power alarm ............................................................. 168
the lost of signal of the light port 4 alarm .............................. 169
the lost of signal of the light port 2 alarm .............................. 169
light port 2 error,Loss of Frame alarm ................................... 169
the lost of signal of the light port 1 alarm .............................. 170
light port 1 error,Loss of Frame alarm ................................... 170
FR device failure ................................................................. 170
the version checking CRC error alarm .................................... 170
Diversity antenna lost ......................................................... 171
Diversity antenna identical ................................................... 171
A Interface Resource Statistics Alarm .................................... 171
NSVC Resource Statistics Alarm ............................................ 172
TCH Resource Statistics Alarm .............................................. 172
Assignment Failure ............................................................. 173
Communication Alarms ................................................. 173
Exceptional Connection Setup .............................................. 173
Trunk Frame Loss ............................................................... 173
Trunk Signal Loss ............................................................... 174
Trunk Alarm Indication ........................................................ 175
Trunk Multi-frame Loss ........................................................ 175
Far-End CRC Multi-frame Alarm Indication ............................. 175
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Far End Alarm .................................................................... 175
Communication Link between Active and Standby Boards Off ... 176
Incorrect FE Routing Connection .......................................... 176
Board HW Error .................................................................. 177 Communication between environment monitoring board and OMP
board abnormal ................................................................. 178
RAWMACIP Channel Communication Exception....................... 178
test pack check abnormal .................................................... 179
MAC Address Conflict Exists in Boards of Same Shelf ............. 179
IPMAC Conflict When OSS Detects Control Plane .................... 180
dualhome office block ......................................................... 180
dualhome link block ............................................................ 181
dualhome association block ................................................. 181 Recive bad packet .............................................................. 182
Faulty Frames Received by FE/GE/ATM/MP/POS/E1 Port .......... 182
Faulty Frames Received by Internal Switching Interface Faulty. 183
HDLC unavailable ............................................................... 183
UID unavailable ................................................................. 184
UID unavailable ................................................................. 184
Far End IMA Group is in Startup state ................................... 185
FE is in blocked state .......................................................... 185
Timing of Near-End IMA Group Failure .................................. 185
FE RXLSM is in Unusable State ............................................. 186
Implementation specific TX fault declared at the NE ................ 186
Near-End Sending Link Broken ............................................. 187
Near-End Sending Link Broken ............................................. 187
LODS Alarm of Near-End Receiving Link ................................ 187
RDI Alarm of Near-End Receiving Link .................................. 188
Near-End Receiving Link Faults ............................................ 188
Implementation specific Rx failed declared at the NE .............. 188
Near-End Receiving Link Broken ........................................... 188
Far end TXLSM is in Unusable State ...................................... 189
Fe IMA Group's part of links are possibly arp looped back ........ 189
Remote Receiving Link ID Mismatched .................................. 190
BFD Session Interrupted ..................................................... 190
Abis link broken ................................................................. 191
Control plane communication abnormal between board and itshome module ..................................................................... 191
Control plane communication abnormal between MP and OMP.. 192
Association link broken ....................................................... 193
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STC office inaccessible......................................................... 194
PPP_UID Link Down ............................................................ 194
PPP Link Down.................................................................... 194
HDLC unavailable ................................................................ 195 UID unavailable .................................................................. 196
Association path broken ....................................................... 196
PPP link broken................................................................... 196
BSCIP configuration error in database ................................... 197
MGW not registered ............................................................ 198
Dual Homing Office Blocked ................................................. 198
Dual Homing Link Blocked .................................................... 199
Dual Homing Association Blocked .......................................... 199
Trunk error ........................................................................ 200
Trunk abnormal .................................................................. 200
The rate of error code in a matelink is high at GUIM ................ 201
FE Link Error Alarm ............................................................. 201
Link Broken Between Server and Alarmbox ............................ 201
HW link broken ................................................................... 202
Master rack communication link alarm ................................... 203
Communication link alarm between master and slave rack (left)........................................................................................ 203
Communication link alarm between master and slave rack (right)........................................................................................ 203
A interface E1 remote alarm ................................................. 204
B interface E1 remote alarm ................................................. 204
C interface E1 remote alarm................................................. 205
D interface E1 remote alarm ................................................ 205
E interface E1 remote alarm ................................................. 206
F interface E1 remote alarm ................................................. 206
G interface E1 remote alarm ................................................ 207
H interface E1 remote alarm ................................................ 207 LAPD communication link between FUC and BSC break ............ 208
Communication link between CMM and FUC break(BTS V2) ...... 208
HDLC communication link between CMB and FUC broken ......... 209
LAPD communication link between FUC and BSC broken .......... 210
CU parameter configuration error ......................................... 210
Communication broken between EAM and CMB ....................... 211
BSC LAPD communication link broken ................................... 211
Site LAPD communication link broken .................................... 211
Cell interruption alarm ......................................................... 212
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Front-end communication link broken alarm .......................... 212
Control link broken ............................................................. 213
Operation link broken(CS) ................................................... 213
Operation link broken(PS) ................................................... 213 Handling Alarms .......................................................... 214
Process Instance Configuration Error .................................... 214
T Network Connection Not Conform to Configuration ............... 214
DB Config Doesn't Fit for Device ........................................... 215
OMC Gateway Mask Different from DBs ................................. 215
Alarm Due to Inconsistent Area Code .................................... 215
Alarm Due to Inconsistent Mac Address of Background OMP(OMC)
........................................................................................ 216
Alarm Due to Inconsistent Mac Address of Background OMP(OMC)........................................................................................ 216
Alarm Due to Inconsistent MP Type ...................................... 216
Startup File Does Not Exist .................................................. 217
OMP GateWay IP Different from DBs ..................................... 217
OMC Server IP Different from Dbs ........................................ 217
OMC Gateway Mask Different from DBs ................................. 217
OMP Config Changes ........................................................... 218
Inconsistent Office ID Settings of DIP Switch ......................... 218
Port Work Mode Doesn't Match Settings ................................ 218
Formats of audio resource inconsistent ................................. 219
Version Switches While Board Doesn't Reset .......................... 219
Function EPLD Update Failure .............................................. 220
Inconsistent BOOT/EPLD Version No. with Database Configurations........................................................................................ 220
Boot Version Fails to Be Written to Backup Region .................. 220
Microcode Is Abnormal ........................................................ 221
PVC Fault .......................................................................... 221
FE reports unacceptable configuration parameters(M size) ....... 222
Fe IMA Group is in config-aborted state (because of unmatchedsymmertry mode) .............................................................. 222
Fe IMA Group is in config-aborted state (because of unmatchedOAM lable) ........................................................................ 222
Fe IMA Group is in config-aborted state (because of other reseans)........................................................................................ 223
FE is in Insufficient links State ............................................. 223
Near-End IMA Group Configuration Failure ............................. 223
NE Group is in Insufficient links State ................................... 224
Number of Alarms Over Threshold ........................................ 224
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Board Connection Check is Off .............................................. 224
Access DSP's HPI memory error........................................... 225
The config data of sntp in DBS is wrong ................................. 225
The Client Of Sntp Failed In Fetching Net Time ....................... 225 SNTP failure ....................................................................... 226
Number of management module alarms exceeds the threshold. 227
NTP time exceeds threshold ................................................. 227
brs main config request timeout ........................................... 228
brs main epu register timeout .............................................. 228
Database config is different from file named bootcfg ini. .......... 229
Wrong Parameter configuration for TPU Ch0 ........................... 229
Wrong Parameter configuration for TPU Ch1 ........................... 229
Wrong Parameter configuration for TPU Ch2 ........................... 230
Wrong Parameter configuration for TPU Ch3 ........................... 230
Wrong Parameter configuration for TPU Ch4 ........................... 231
Wrong Parameter configuration for TPU Ch5 ........................... 231
Wrong Parameter configuration for TPU Ch6 ........................... 231
Wrong Parameter configuration for TPU Ch7 ........................... 232
Cell configuration parameter mismatch(BTS V2) ..................... 232
Software version of FUC mismatch(BTS V2) ........................... 233
Software version of CHP mismatch(BTS V2) ........................... 233
L3 Software of FUC No Response(BTS V2) ............................. 233
Wrong Parameter configuration for CIP .................................. 234
Software version of CIP mismatch ......................................... 234
Wrong parameter configuration for TRM Channel 0 ................. 234
Wrong parameter configuration for TRM Channel 1 ................. 235
Wrong parameter configuration for TRM Channel 2 ................. 235
Wrong parameter configuration for TRM Channel 3 ................. 236
Wrong parameter configuration for TRM Channel 4 ................. 236
Wrong parameter configuration for TRM Channel 5 ................. 236
Wrong parameter configuration for TRM Channel 6 ................. 237
Wrong parameter configuration for TRM Channel 7 ................. 237
Cell configuration parameter mismatch .................................. 238
FUC Software version mismatch ........................................... 238
CHP Software version mismatch ........................................... 238
CU Software version mismatch ............................................. 239
FUC L3 Software no response ............................................... 239
Parameter configuration mismatch ........................................ 239
Parameter configuration failure of AD6537 ............................. 240
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Environment Alarms ..................................................... 240
Cell delineation do not synchronization about cell on E1 link ... 240
RACK Temperature Over Alarm Threshold ............................. 240
RACK Temperature Lower Than Alarm Threshold .................... 241 House temperature is higher than high threshold ................... 241
House temperature is lower than high threshold ..................... 242
Any one of rack voltage inputs above threshold...................... 242
Any one of rack voltage inputs below threshold ...................... 242
Temperature in equipment room above threshold ................... 243
Temperature in equipment room below threshold ................... 243
Rack fans faults ................................................................. 244
Rack door access control alarm ............................................ 244
Smoke alarm ..................................................................... 244
Infrared alarm ................................................................... 245
Lightning alarm .................................................................. 245
SNTP server invalid ............................................................ 245
Fault on Board (GPS) .......................................................... 246
QoS Alarms ................................................................. 246
Inter-board Message Communication Flow Rate Over AlarmThreshold .......................................................................... 246
Inter-board Message Communication DSP overload (Level 1 alarm)
........................................................................................ 247 Inter-board Message Communication DSP overload (Level 2 alarm)........................................................................................ 247
Inter-board Message Communication DSP overload (Level 3 alarm)........................................................................................ 247
MTP2 link reception overload ............................................... 248
Association congested ......................................................... 248
STC office congested .......................................................... 249
Appendix A .................................................................. 251
Abbreviations .............................................................. 251
Tables .......................................................................... 259
Index ........................................................................... 261
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Confidential and Proprietary Information of ZTE CORPORATION i
About This Manual
Purpose
This manual describes BSS (V6.20) related alarm messages interms of alarm cause, influence, and handling suggestions. Youcan analyze, locate, and handle faults by referring to this
document.
Intended Audience
This manual is intended for engineers and technicians who
perform operation activities on the ZXG BSS.
Prerequisite Skill and Knowledge
To use this manual effectively, users should have a general
understanding of wireless telecommunications technology.Familiarity with the following is helpful:
ZXG system and its various components
User interfaces on the Mobile Switching Center (MSC)
Local operating procedures
What Is in This Manual
This manual contains the following chapters:
TABL E 1 CHAPT ER SUM M ARY
Chapter Summary
Chapter 1, AlarmMessages
Introduces the basic concepts of BSS(V6.20) alarms, including alarm definition,severity, handling suggestions, andclassification
Chapter 2, AlarmMessage Description
Describes the BSS (V6.20) alarms in termsof alarm cause, influence on the system,
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Chapter Summary
and handing flow.
Related Documentation
The following documentation is related to this manual:
ZXG10 iBSC (V6.20) Base Station Controller DocumentationGuide
ZXG10 iBSC (V6.20) Base Station Controller TechnicalManual
ZXG10 iBSC (V6.20) Base Station Controller HardwareManual
ZXG10 iBSC (V6.20) Base Station Controller InstallationManual
ZXG10 iBSC (V6.20) Base Station Controller PerformanceCounters Manual – Volume I
ZXG10 iBSC (V6.20) Base Station Controller KPI ReferenceManual
ZXG10 iBSC (V6.20) Base Station Controller MaintenanceManual (Routine Maintenance)
ZXG10 iBSC (V6.20) Base Station Controller MaintenanceManual (Troubleshooting)
ZXG10 iBSC (V6.20) Base Station Controller MaintenanceManual (Emergency Maintenance)
ZXG10 BSS (V6.20) Base Station Subsystem NotificationHandling Manual
ZXG10 BSS (V6.20) Base Station Subsystem OMM SofrwareInstallation Manual
ZXG10 BSS (V6.20) Base Station Subsystem Configuration
Manual (Initial Configuration Guide) ZXG10 BSS (V6.20) Base Station Subsystem Configuration
Manual (Feature Configuration Guide)
ZXG10 BSS (V6.20) Base Station Subsystem MML Command
Manual
ZXG10 BSS (V6.20) Base Station Subsystem RadioParameters Manual
ZXG10 BSS (V6.20) Base Station Subsystem OperationManual (Diagnosis and Test)
ZXG10 BSS (V6.20) Base Station Subsystem Operation
Manual (Signaling Tracing)
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About This Manual
Confidential and Proprietary Information of ZTE CORPORATION iii
ZXG10 iBSC (V6.20) Base Station Controller PerformanceCounter Manual - Volume II
ZXG10 iBSC (V6.20) Base Station Controller PerformanceCounter Manual - Volume III
In this manual, ZXG10 iBSC (V6.20) and ZXG10 BSC (V2) arereferred to as BSC, and iBSC refers to only ZXG10 iBSC.
Conventions
ZTE documents employ the following typographical conventions.
TABL E 2 T YP O GR AP HI C AL CO NVENT I O NS
Typeface Meaning
Italics References to other Manuals and documents.
“Quotes” Links on screens.
Bold Menus, menu options, function names, inputfields, radio button names, check boxes, drop-
down lists, dialog box names, window names.
CAPS Keys on the keyshelf and buttons on screens andcompany name.
Constant width Text that you type, program code, files anddirectory names, and function names.
[ ] Optional parameters.
{ } Mandatory parameters.
| Select one of the parameters that are delimited
by it.
Note: Provides additional information about acertain topic.
Checkpoint: Indicates that a particular step needsto be checked before proceeding further.
Tip: Indicates a suggestion or hint to make thingseasier or more productive for the reader.
TABL E 3 MO USE OPERAT I O N CO NVENT I O NS
Typeface Meaning
Click Refers to clicking the primary mouse button (usuallythe left mouse button) once.
Double-click Refers to quickly clicking the primary mouse button(usually the left mouse button) twice.
Right-click Refers to clicking the secondary mouse button(usually the right mouse button) once.
Drag Refers to pressing and holding a mouse button and
TypographicalConventions
Mouse
OperationConventions
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Typeface Meaning
moving the mouse.
How to Get in Touch
The following sections provide information on how to obtainsupport for the documentation and the software.
If you have problems, questions, comments, or suggestionsregarding your product, contact us by e-mail at
[email protected]. You can also call our customer supportcenter at (86) 755 26771900 and (86) 800-9830-9830.
ZTE welcomes your comments and suggestions on the qualityand usefulness of this document. For further questions,comments, or suggestions on the documentation, you cancontact us by e-mail at [email protected]; or you can fax yourcomments and suggestions to (86) 755 26772236. You can also
browse our website at http://support.zte.com.cn, which containsvarious interesting subjects like documentation, knowledgebase, forum and service request.
CustomerSupport
DocumentationSupport
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Confidential and Proprietary Information of ZTE CORPORATION v
Declaration of RoHSCompliance
To minimize the environmental impact and take moreresponsibility to the earth we live, this document shall serve asformal declaration that the ZXG10 BSS (V6.20) Base StationSubsystem manufactured by ZTE CORPORATION is in
compliance with the Directive 2002/95/EC of the EuropeanParliament - RoHS (Restriction of Hazardous Substances) withrespect to the following substances:
Lead (Pb)
Mercury (Hg)
Cadmium (Cd)
Hexavalent Chromium (Cr(VI))
PolyBrominated Biphenyls (PBB’ s)
PolyBrominated Diphenyl Ethers (PBDE’ s)
The usage of the above substances in ZXG10 BSS (V6.20) isexplained in Table 4.
TABL E 4 – USAG E E XPL ANAT I O N O F T HE HAZ ARDO US SUBST ANCES I N ZXG10 BSS (V6.20)
Names of Parts
Hazardous substances
Pb Hg Cd Cr(VI) PBB’s PBDE’s
System × 0 0 0 0 0
Cables and Assembly 0 0 0 0 0 0
Auxiliary Equipment × × × × × ×
Table Explanation:
0: The usage of the substance in all of the components is lessthan the allowed values given by 2002/95/EC standard.
×: The usage of the substance in at least one of the components
is beyond the allowed values given by 2002/95/EC standard.
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The ZXG10 BSS (V6.20) Base Station Subsystem manufacturedby ZTE CORPORATION meet the requirements of EU
2002/95/EC; however, some assemblies are customized to clientspecifications. Addition of specialized, customer-specifiedmaterials or processes which do not meet the requirements ofEU 2002/95/EC may negate RoHS compliance of the assembly.
To guarantee compliance of the assembly, the need forcompliant product must be communicated to ZTE CORPORATIONin written form.
This declaration is issued based on our current level ofknowledge. Since conditions of use are outside our control, ZTECORPORATION makes no warranties, express or implied, andassumes no liability in connection with the use of this
information.
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Confidential and Proprietary Information of ZTE CORPORATION 1
C h a p t e r
1
Alarm Message Summary
This chapter introduces the basic concepts of alarm messages,
such as alarm code definition, alarm severity level, alarmhandling suggestions, and alarm classification.
Alarm Code DefinitionAn alarm code is defined by a string of 32 bits, which indicatesthe code values of a specified alarm message.
The range of GSM BSS alarm codes is as follows:
1 ~ 100000
198000000 ~ 198065535
198066000 ~ 198079999
198087000 ~ 198089999
198099800 ~ 198099801
Alarm Severity Level
Whenever there is a problem or fault during BSC operation, an
alarm message appears. Usually, the alarm may last till theproblems or faults are rectified.
According to severity, alarms are divided into four levels:
Critical (level 1)
Critical alarms cause the whole system to fail to operate orprovide services. Measures must be taken to recover oreliminate the alarms immediately.
Major (level 2)
Severe alarms greatly affect the system operation or resultin severe degradation in performance of service provision.
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Measures must be taken to recover or eliminate the alarmsas soon as possible.
Minor (level 3)
Major alarms do not greatly affect normal system operationand performance of service provision. Measures should betaken to recover or eliminate the alarms in time to avoidmore severe alarms.
Warning (level 4)
Minor alarms have potential effects on normal systemoperation and performance of service provision. Diagnosis
and measures should be taken to avoid more severe alarms.
In alarm level definition, the affected range only refers to theinfluence on a single item, that is, alarm level can be determinedif a certain index, such as reliability and safety, reaches the
specified range. If an alarm affects several indices, the alarmlevel should be upgraded.
Note:
Alarm levels can be modified in the Netnumen M31 EMSsystem based on the actual situations.
Generally, the default settings are comparatively reasonable.
Be cautious when re-defining levels. It is not allowed tomodify the settings at will.
In addition, some alarm levels are not defined. For these alarms,users can define their levels in actual situations.
Alarm HandlingPay attention to the following points when handling alarms:
After noting down the problem and symptom, systemmaintenance personnel should handle the alarms step bystep by referring to the solutions described in this manual.Unless otherwise specified, end the alarm handling once thefault is rectified (that is, the alarm is recovered), or go to thenext step if the problem persists.
If the alarm fails to be handled or recovered, contact thelocal ZTE office.
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Alarm Classification
The BSS related alarm messages on Netnumen M31 can be
classified into the following six types:
Equipment alarms
Communication alarms
Handling alarms
Environment alarms
QoS alarms
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starts. If this trunk link is not used for CSU loopback test, thisalarm won't be triggered.
The configured trunk link is congested.
After diagnosis and test, do some settings, where end A sendsthe command of canceling CSU loopback to end B.
Cell Delineation Not Synchronized
Alarm code: 198001024
Alarm level: 3
The HEC is damaged. The cell cannot be located from thephysical layer frame. This problem is usually triggered frombottom layer fault. It may also because the local and peer-enddevices use different methods to process HEC.
The ATM communication becomes worse.
1. Check if other alarms are generated accompanying itsoccurrence. If yes, clear these alarms. If no, go to step 2.
2. Check if both ends are configured to SDH mode or SONETmode. If the modes are different, configure a correct signalmode.
Loss of Cell Delineation
Alarm code: 198001025
Alarm level: 2
LCD is triggered after OCD lasts for 4 ms.
The ATM communication is broken.
1. Check if other alarms are generated accompanying itsoccurrence. If yes, clear these alarms. If no, go to step 2.
2. Check if both ends are configured to SDH mode or SONET
mode. If the modes are different, configure a correct signal
mode.
8K input clock lose
Alarm code: 198001280
Alarm level: 3
The clock input of the shelf is abnormal.
The system communication fails.
Check whether the clock input line is correctly connected.
Influence
Handling Flow
Alarm Property
Alarm Cause
Influence
Handling Flow
Alarm Property
Alarm Cause
Influence
Handling Flow
Alarm Property
Alarm Cause
Influence
Handling Flow
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16M Input Clock Lose
Alarm code: 198001281
Alarm level: 3
The clock input of the shelf is abnormal.
The system communication fails.
Check whether the clock input line is correctly connected.
PP2S Clock Input Lose
Alarm code: 198001282
Alarm level: 3
The clock input of the shelf is abnormal.
The system communication fails.
1. Check if the clock input lines are correctly connected.
2. Check if the subrack of output clock locks the GPS signals.
32M Clock lost in TSNB
Alarm code: 198001283
Alarm level: 3
As the clock consists of 32M and 8K, the 32M clock alarm isgenerated when the clock (32M or 8K) jitters out of thespecified range and affects the links.
The clock is unavailable.
The whole link is blocked if the alarm is generated. Therefore,the clock cannot be lost. Two boards for reporting alarms are
used in a system, with one active and the other one standby.When a clock alarm is generated, the system switches over
between the active and standby TSNBs.
For Tier 1 network, clock loss means loss of the whole linkdata. The link is recovered only after the clock becomesnormal.
Check if the clock input lines are correctly connected.
Alarm Property
Alarm Cause
Influence
Handling Flow
Alarm Property
Alarm Cause
Influence
Handling Flow
Alarm Property
Alarm Cause
Influence
Handling Flow
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Clock Phase Does not Match WhenInputting 8k,16M Clock to Backboard
Alarm code: 198001284
Alarm level: 3
The clock input of the shelf is abnormal. The clock line is notreliably connected or faulty.
The system communication fails.
Check if the clock input lines are correctly connected.
Clock Chip of This Board Is inPreheat Status
Alarm code: 198001285
Alarm level: 3
The board experiences reset. The SETS chip and the constant-temperature crystal oscillator needs to be fully preheated.
The output clock is unstable.
Perform normal operations after the board is powered on. Wait
until the clock board is completely preheated. Conduct the clockperformance test only after the preheat ends.
Loss of Clock When Input to Board
Alarm code: 198001286
Alarm level: 3
The clock input of the shelf is abnormal.
The system communication fails.
Check if the clock input lines are correctly connected.
SDH/SONET fault
Alarm code: 198001792
Alarm level: 2
The upstream optical transmission device is faulty.
The optical fiber transmission line is faulty.
Alarm Property
Alarm Cause
Influence
Handling Flow
Alarm Property
Alarm Cause
Influence
Handling Flow
Alarm Property
Alarm Cause
Influence
Handling Flow
Alarm Property
Alarm Cause
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The fiber pigtail and flange between the local-end ODF(optical distribution frame) and equipment are faulty.
The local-end optical receiver is faulty.
All the trunk receiving signals that are transmitted through theSDH/SONET line are interrupted.
1. Use an optical power meter to check if the power for
receiving optical signals is within the specified range (that is,-28 dBm ~ -8 dBm).
If yes, go to step 3
If no, it can be inferred that the optical module is faulty,
and then go to step 2.
2. Replace the optical module or board. Check if the alarm iseliminated.
3. Use the transmitting end at the peer-end office to detect thetransmitting optical signal. Check if the signal is within thespecified range.
If yes, go to step 5.
If no, it can be inferred that the peer end is faulty, andthen go to step 4.
4. Ask maintenance personnel to check the peer-end office.After the fault is rectified, check if the alarm is eliminated.
5. Something may be wrong with the transmission equipment.Ask maintenance personnel special for transmission
equipment to do troubleshooting.
SDH/SONET:Loss of Frame
Alarm code: 198001793
Alarm level: 2
The upstream SDH devices are faulty.
All the trunk receiving signals that are transmitted through theSDH/SONET line are interrupted.
Ask SDH transmission equipment maintenance personnel torectify the faults.
SDH/SONET: Regenerator SectionTrace Mismatch/Section TraceMismatch
Alarm code: 198001794
Influence
Handling Flow
Alarm Property
Alarm Cause
Influence
Handling Flow
Alarm Property
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Alarm level: 2
The optical fiber on the optical distribution frame is incorrectly
connected during optical fiber cutover and scheduling, or theexpected value is incorrectly set on the network management
system.
The matching relations of the trunks and trunk signals are wrong.
1. Check if the fibers are correctly connected to the ODFs atlocal end and peer end.
If yes, go to step 2.
If no, correctly connect the fibers, and then check if the
alarm is eliminated.
2. Check if the predefined values of “section access pointidentifier” at both ends are consistent. If not, set the same
value. Check whether the alarm is eliminated.
SDH/SONET:MS-AIS,Line AlarmIndication Signal
Alarm code: 198001795
Alarm level: 2
The upriver equipment has faults, such as LOS, LOF, and RSTIM.
All the trunk receiving signals that are transmitted through theSDH/SONET line are interrupted.
Clear the “primary alarm” according to the alarm generated fromthe network node equipment in the corresponding multiplexingsection.
SDH/SONET:Multiplexing SectionFar-end Reception Failure/Line Far-
end Reception Failure Alarm code: 198001796
Alarm level: 3
Errors occur on the uplink direction of the downstreamequipment.
All the trunk sending signals that are transmitted through theSDH/SONET line are interrupted.
Alarm Cause
Influence
Handling Flow
Alarm Property
Alarm Cause
Influence
Handling Flow
Alarm Property
Alarm Cause
Influence
Handling Flow
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Clear the “primary alarm” according to the alarm generated fromthe network node equipment in the corresponding multiplexing
section.
SDH/SONET:Signal Failure
Alarm code: 198001797
Alarm level: 2
For all the NEs in the multiplexing section where the boardresides, the fiber pigtail connectors in the down direction arecontaminated. The increase of transmission line attenuation
or change in optical transmission mode leads to error code.
The ADM transmit device is faulty.
All the trunk receiving signals that are transmitted through the
SDH/SONET line generate large numbers of alarms.
1. Check if the fiber pigtail heads are contaminated.
If yes, clean the connectors, and then check if the alarmis eliminated.
If no, go to step 2.
2. Use an optical power meter to detect the optical powerattenuation of each connection point in the down direction inthe multiplexing section and find if the value is excessive.
If yes, adjust the attenuation, and then check if thealarm is eliminated.
If no, go to step 3.
3. Ask maintenance personnel for transmission network tocheck if the ADM transmit device is faulty, end the alarmhanding.
SDH/SONET:Signal Deterioration
Alarm code: 198001798 Alarm level: 3
When signal degrade (SD) and signal fail (SF) occur at the same
time, eliminate SF first. When SD occurs individually, it can beinferred that the ADM transmit device is faulty.
Some trunk receiving signals generate various alarms.
1. Eliminate SF, if it occurs. Check if the alarm is eliminated.
2. Check the optical fibers and fiber transceiver modules at thelocal and peer ends. Ensure that the optical fibers are wellconnected and that the optical transceiver module is not
loose. Check if the alarm is eliminated.
Alarm Property
Alarm Cause
Influence
Handling Flow
Alarm Property
Alarm Cause
Influence
Handling Flow
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3. Replace the fiber module or board. Check if the alarm iseliminated.
4. Ask maintenance personnel to check the peer-end office andrectify the faults. Check if the alarm is eliminated.
5. Something may be wrong with the transmission equipment.Ask maintenance personnel special for transmission
equipment to do troubleshooting.
SDH/SONET:Loss of AU-4Pointer/Loss of Channel Pointer
Alarm code: 198001799
Alarm level: 2
The upstream AU-4 pointer processing unit is faulty.
All the trunk receiving signals that are transmitted through theSDH/SONET line are interrupted.
Ask maintenance personnel for transmission network to check if
the AU-4 pointer processing unit of the upstream device is faulty.
SDH/SONET:AU-AIS/Channel-AIS
Alarm code: 198001800
Alarm level: 2
The upstream VC-4 channel control unit is faulty.
All the trunk receiving signals that are transmitted through theSDH line are interrupted.
Ask maintenance personnel for transmission network to check ifthe VC-4 channel control unit of the upstream device is faulty.
SDH/SONET:HP-Trace Mismatch/Patch Trace Mismatch
Alarm code: 198001801
Alarm level: 2
The optical fiber on the ODF is incorrectly connected duringoptical fiber cutover and scheduling, or the expected value isincorrectly set on the network management system.
The matching relations of all the trunk signals are wrong.
Alarm Property
Alarm Cause
Influence
Handling Flow
Alarm Property
Alarm Cause
Influence
Handling Flow
Alarm Property
Alarm Cause
Influence
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1. Check if the fibers are correctly connected to the ODFs atlocal end and peer end.
If yes, go to step 2.
If no, correctly connect the fibers, and then check if thealarm is eliminated.
2. Check if the predefined values of “VC-4 channel access point
identifier (J1)” at both ends are consistent. If not, set thesame expected value. Check if the alarm is eliminated.
SDH/SONET:HP Unassembled/PathUnassembled
Alarm code: 198001802
Alarm level: 2
During project installation, the internal cross connection of SDHnetwork is not complete, or the SDTB/SDTB2 remote device isnot equipped with the channel where SDTB/SDTB2 locates.
All the trunk receiving signals that are transmitted through theSDH/SONET line are interrupted.
Ask maintenance personnel for transmission network to check if
the VC-4 channel control unit (C2) of the upstream device isfaulty.
DH/SONET:HP Label Mismatch/PathLabel Mismatch
Alarm code: 198001803
Alarm level: 2
During project installation, the internal cross connection of SDHnetwork is not complete.
All the trunk receiving signals that are transmitted through theSDH/SONET line are interrupted.
Ask maintenance personnel for transmission network to check ifthe upstream and downstream circuit configuration (C2) of theDXC devices in each station during the corresponding timeslot is
correct.
Alarm Property
Alarm Cause
Influence
Handling Flow
Alarm Property
Alarm Cause
Influence
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Chapter 2 Alarm Messages
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SDH/SONET:HP Remote ReceptionFailure
Alarm code: 198001804
Alarm level: 3
The network node in VC-4 channel where the board locates isfaulty.
All the trunk receiving signals that are transmitted through the
SDH/SONET line are interrupted.
Rectify the “source fault” according to the alarm generated onthe network node equipment in the VC-4 channel where theboard locates.
SDH/SONET:LOM
Alarm code: 198001805
Alarm level: 2
The upstream VC-4 channel control unit is faulty.
All the trunk receiving signals that are transmitted through theSDH/SONET line are interrupted.
Ask maintenance personnel for transmission network to check ifthe VC-4 channel control unit (H4) of the upstream device isfaulty.
SDH/SONET: Loss of TUPointer/Loss of Virtual TributaryPointer
Alarm code: 198001806
Alarm level: 4
The upstream TU pointer processing unit is faulty.
The trunks that the tributary bears stop receiving trunk signals.
Ask maintenance personnel for transmission network to check if
the upstream TU-12 tributary pointer pr