02-a alarm reference

A Alarm Reference

A.1 Alarm ListThe following table lists all the possible alarms generated by the OptiX RTN 600 in alphabeticalorder.

Table A-1 Alarm List

Alarm Name Description AlarmSeverity

SourceBoard

A_LOC Add to bus - loss of clock Major PO1、PH1

ALM_APS_MANU_STOP

MSP protocol is stopped manually Major SCC

ALM_GFP_dCSF GFP Loss of Client Signal Critical EFT4

ALM_GFP_dLFD GFP loss of frame delineation Major EFT4

ALM_RTC_FAIL RTC time fail alarm Major SCC

APS_FAIL APS protection switching failed Major SCC

APS_INDI APS state indication alarm Major SCC

AU_AIS AU alarm indication Major SD1, SL1,SDE, SLE,IF1A, IF1B

AU_LOP AU loss of pointer Major SD1, SL1,SDE, SLE,IF1A, IF1B

B1_EXC Regenerator section (B1) excessiveerrors

Minor SD1, SL1,SDE, SLE,IF1A, IF1B

OptiX RTN 600 Radio Transmission SystemMaintenance Guide A Alarm Reference

Issue 06 (2007-12-30) Huawei Technologies Proprietary A-1


SourceBoard

B1_SD Regenerator section (B1) signaldegraded


B2_EXC Multiplex section (B2) excessiveerrors

Major SD1, SL1,SDE, SLE,IF1A, IF1B

B2_SD Multiplex section (B2) signaldegraded


B3_EXC Higher order path (B3) excessiveerrors

Major SD1, SL1,SDE, SLE,IF1A, IF1B

B3_EXC_VC3 B3_EXC_VC3 Major EFT4

B3_SD Higher order path (B3) signaldegraded


B3_SD_VC3 B3_SD_VC3 Minor EFT4

BD_NOT_INSTALLED

Slot not installed with thecorresponding logical board

Minor SCC

BD_STATUS Board not in position Major SD1, SL1,SDE, SLE,IF1A,IF1B, PO1,PH1, EFT4,PXC,ODU,FAN, EOW

BIP_EXC BIP excessive errors Minor PO1, PH1,EFT4

BIP_SD BIP signal degraded Minor PO1, PH1,EFT4

CONFIG_NOSUPPORT

Configuration not supported Major ODU

DBMS_ERROR Database error Major SCC

DBMS_PROTECT_MODE

Database in protection mode Critical SCC

DN_E1_AIS 2M down signal alarm indication Minor PO1, PH1

E1_LOC Loss of E1 clock Major PO1, PH1

A Alarm ReferenceOptiX RTN 600 Radio Transmission System

Maintenance Guide

A-2 Huawei Technologies Proprietary Issue 06 (2007-12-30)


SourceBoard

E1_LOS 2M line loss of signal Minor PO1, PH1

ESN_FAILED ESN failed Major SCC

ESN_INVALID ESN invalid Major SCC

ETH_LOS Ethernet receive loss of input signal Critical EFT4

EXT_SYNC_LOS Loss of external synchronous source Critical SCC

FAN_FAIL Fan failed Major FAN

FCS_ERR FCS check error Critical EFT4

HARD_BAD Hardware error Critical SD1, SL1,SDE, SLE,IF1A,IF1B, PO1,PH1, EFT4,PXC, SCC,ODU

HP_CROSSTR Higher order path performance overthreshold


HP_LOM Higher order path loss of multiframe Major SD1, SL1,SDE, SLE,IF1A, IF1B

HP_RDI Higher order path remote defectindication


HP_REI Higher order path remote errorindication

Warning SD1, SL1,SDE, SLE,IF1A, IF1B

HP_SLM Higher order path signal labelmismatch


HP_TIM Higher order path trace identifiermismatch


HP_UNEQ Higher order path unequipped Minor SD1, SL1,SDE, SLE,IF1A, IF1B

HPAD_CROSSTR Higher order path adaptationperformance over threshold

Minor PO1, PH1




SourceBoard

HSB_INDI Microwave equipment HSBswitching indication

Major SCC

HSM_INDI Microwave channels HSMswitching indication

Major SCC

IF_INPWR_ABN Abnormal input IF power of theODU

Major ODU

IN_PWR_HIGH Input power too high Critical SD1, SL1

IN_PWR_LOW Input power too low Critical SD1, SL1

J0_MM Trace identifier mismatch Minor SD1, SL1,SDE, SLE,IF1A, IF1B

K1_K2_M K1K2 mismatch Minor SCC

K2_M K2 mismatch Minor SCC

LASER_CLOSED Laser closed alarm Major SD1, SL1

LASER_MOD_ERR_EX

Pluggable optical module on theboard mismatches the opticalinterface

Major SD1, SL1

LCAS_FOPR Failure of protocol receive Major EFT4

LCAS_FOPT Failure of protocol transmit Major EFT4

LCAS_PLCR Partial loss of capacity receive Minor EFT4

LCAS_PLCT Partial loss of capacity transmit Minor EFT4

LCAS_TLCR Total loss of capacity receive Major EFT4

LCAS_TLCT Total loss of capacity receive Major EFT4

LPS_UNI_BI_M Alarm of mismatch in unidirectionaloperation and bidirectionaloperation in linear MSP

Minor SCC

LOOP_ALM Path loopback Minor SD1, SL1,SDE, SLE,IF1A,IF1B, PO1,PH1, EFT4,ODU

LP_CROSSTR Lower order path performanceparameter over threshold

Minor PO1, PH1

LP_R_FIFO FIFO overflow on the receiving sideof the lower order path

Minor PO1, PH1


Maintenance Guide



SourceBoard

LP_RDI Lower order path remote defectindication

Minor PO1, PH1

LP_RDI_VC12 VC-12 lower order path remotedefect indication

Minor EFT4

LP_RDI_VC3 VC-3 lower order path remote defectindication

Minor EFT4

LP_REI Lower order path remote errorindication

Minor PO1, PH1

LP_REI_VC12 VC-12 lower order path remotereceiving failure indication

Minor EFT4

LP_REI_VC3 VC-3 lower order path remotereceiving failure indication

Minor EFT4

LP_RFI Lower order path remote failureindication

Minor PO1, PH1

LP_SIZE_ERR TU structure error Minor PO1, PH1

LP_SLM Lower order path signal labelmismatch

Minor PO1, PH1

LP_SLM_VC12 VC-12 lower order path signal flagmismatch

Minor EFT4

LP_SLM_VC3 VC-3 lower order path signal flagmismatch

Minor EFT4

LP_T_FIFO FIFO overflow on the transmissionside of the lower order path

Minor PO1, PH1

LP_TIM Lower order path trace identifiermismatch

Minor PO1, PH1

LP_TIM_VC12 VC-12 lower order path traceidentifier mismatch

Minor EFT4

LP_TIM_VC3 VC-3 lower order path traceidentifier mismatch

Minor EFT4

LP_UNEQ Lower order path unequipped Minor PO1, PH1

LP_UNEQ_VC12 VC-12 lower order path signalunequipped

Minor EFT4

LP_UNEQ_VC3 VC-3 lower order path signalunequipped

Minor EFT4

LSR_NO_FITED Laser not installed Critical SD1, SL1

LTI Loss of timing input Major SCC




SourceBoard

MS_AIS Multiplex section alarm indication Major SD1, SL1,SDE, SLE,IF1A, IF1B

MS_CROSSTR Multiplex section performance overthreshold


MS_RDI Multiplex section remote defectindication


MS_REI Multiplex section remote errorindication

Warning SD1, SL1,SDE, SLE,IF1A, IF1B

MSAD_CROSSTR Multiplex section adaptationperformance over threshold


MSSW_DIFFERENT

Master and slave software differentalarm

Major SCC

MW_FECUNCOR Microwave FEC uncorrectable Minor IF1A, IF1B

MW_LIM Microwave link identifier mismatch Major IF1A, IF1B

MW_LOF Loss of RS frame Critical IF1A, IF1B

MW_RDI Microwave link remote defectindication

Minor IF1A, IF1B

NESF_LOST Loss of NE software Critical SCC

NESTATE_INSTALL

NE in install state Critical SCC

NO_BD_SOFT Software file corrupted or missing Critical SD1, SL1,SDE, SLE,IF1A,IF1B, PXC

POWER_ALM Power module alarm Major IF1A,IF1B, PXC,SCC, FAN

POWER_FAIL Board power failed Major ODU

PS Protection switch indication Major PO1, PH1

R_F_RST Receiving FIFO reset Minor PO1, PH1

R_LOC Receive loss of clock Major SD1, SL1,SDE, SLE,IF1A, IF1B


Maintenance Guide



SourceBoard

R_LOF Receive loss of frame Critical SD1, SL1,SDE, SLE,IF1A, IF1B

R_LOS Receive loss of signal Critical SD1, SL1,SDE, SLE,IF1A, IF1B

R_S_ERR Received signal error Critical PO1, PH1

RADIO_MUTE Radio transmission mute Warning ODU

RADIO_RSL_HIGH Radio receive signal level too high Critical ODU

RADIO_RSL_LOW Radio receive signal level too low Critical ODU

RADIO_TSL_HIGH Radio transmission signal level toohigh

Critical ODU

RADIO_TSL_LOW Radio transmission signal level toolow

Critical ODU

RELAY_ALARM Relay alarm Critical EOW

RP_LOC Loss of receiving phaselock ringclock

Major PO1, PH1

RS_CROSSTR Regenerator section performanceover threshold


S1_SYN_CHANGE Reference source change inS1_Mode

Major SCC

SYN_BAD Synchronous source degraded Minor PXC

SYNC_C_LOS Synchronous source level loss Warning SCC

T_ALOS E1 interface loss of analog signal Major PO1, PH1

T_F_RST Transmission FIFO reset Minor PO1, PH1

T_FIFO_E Transmission FIFO overflow Minor PO1, PH1

T_LOC Transmit loss of clock Major SD1, SL1,SDE, SLE

T_LOS Transmit loss of signal Major SD1, SL1,SDE, SLE

TEMP_ALARM Temperature over threshold Minor IF1A,IF1B,EFT4,PXC, SCC

TU_AIS TU alarm indication Major PO1, PH1




SourceBoard

TU_AIS_VC12 VC-12 tributary unit alarmindication

Major EFT4

TU_AIS_VC3 VC-3 tributary unit alarm indication Major EFT4

TU_LOP TU loss of pointer Major PO1, PH1

TU_LOP_VC12 VC-12 tributary unit loss of pointer Major EFT4

TU_LOP_VC3 VC-3 tributary unit loss of pointer Major EFT4

UP_E1_AIS 2M up signal alarm indication Minor PO1, PH1

VCAT_LOA Virtual concatenation delay exceedsthe threshold

Critical EFT4

VCAT_LOM_VC12 The multiframe indication ofmembers in VC-12 virtualconcatenation mismatches

Major EFT4

VCAT_LOM_VC3 The multiframe indication ofmembers in VC-3 virtualconcatenation mismatches

Major EFT4

VCAT_SQM_VC12 The serial number indication ofmembers in VC-12 virtualconcatenation mismatches

Major EFT4

VCAT_SQM_VC3 The serial number indication ofmembers in VC-3 virtualconcatenation mismatches

Major EFT4

VOLT_LOS Loss of voltage Major PXC, IF1A,IF1B

WRG_BD_TYPE Wrong board type Major SCC

WRG_DEV_TYPE Wrong device type Critical SCC

WS_LOS Wayside interface loss of signal Major PXC

XCP_INDI XCS protection switchingindication

Major SCC

A.2 Alarms and Corrective proceduresThis section describes all the possible alarms of the OptiX RTN 600 and how to clear thesealarms.

A.2.1 A_LOC


Maintenance Guide


Description

The A_LOC alarm indicates "add to bus - loss of clock".

Attribute

Alarm Severity Alarm Type

Major Equipment alarm

Parameters

When you view an alarm on the network management system, select the alarm. In the AlarmDetails field display the related parameters of the alarm. The alarm parameters are in thefollowing format: Alarm Parameters (hex): parameter1 parameter2...parameterN, for example,Alarm Parameters (hex): 0x01 0x08. For details about each parameter, refer to the followingtable.

Name Meaning

Parameter 1 The value is always 0x01.

Parameter 2–3 Indicates the number of the path that reports the alarm. For example, "0x000x01" indicates that the alarm is reported by the first path.

Impact on System

The board services are interrupted.

Possible Causes

The board is faulty.

Handling Procedure

Replace the faulty board.

----End

Related Information

None.

A.2.2 APS_MANU_STOP

Description

The APS_MANU_STOP alarm indicates that the MS protocol is manually disabled.



Attribute


Minor Processing alarm

Parameters


Name Meaning

Parameter 1 Indicates the type of a protection group. For example, "0x01" indicates a linearMSP group.

Parameter 2 Indicates the number of the protection group that reports the alarm. For example,"0x01" indicates that the alarm is reported by the first protection group.

Impact on System

When the APS_MANU_STOP occurs, the MSP or the switching might fail.

Possible Causes

The MS protocol is manually disabled.

Handling Procedure

Enable the MS protocol.

----End

Related Information

None.

A.2.3 ALM_GFP_dCSF

Description

The ALM_GFP_dCSF alarm indicates that the generic framing procedure (GFP) customer signalis lost. If a board detects the GFP customer signal management frame that is transmitted fromthe opposite station, this board reports the ALM_GFP_dCSF alarm.


Maintenance Guide


Attribute


Critical Communication alarm

ParametersWhen you view an alarm on the network management system, select the alarm. In the AlarmDetails field display the related parameters of the alarm. The alarm parameters are in thefollowing format: Alarm Parameters (hex): parameter1 parameter2...parameterN, for example,Alarm Parameters (hex): 0x01 0x08. For details about each parameter, refer to the followingtable.

Name Meaning


Parameters 2–3 Indicates the number of the VCTRUNK that reports the alarm. For example,"0x00 0x01" indicates that the alarm is reported by the first VCTRUNK.

Impact on SystemThe services are interrupted.

Possible CausesThe connection of the corresponding Ethernet port on the opposite board is faulty.

Handling ProcedureHandle the alarm on the opposite board.

----End

Related InformationNone.

A.2.4 ALM_GFP_dLFD

DescriptionThe ALM_GFP_dLFD is an alarm indicating that the GFP frame is out of frame. When a boarddetects that the GFP frame is out of frame, this board reports the ALM_GFP_dLFD alarm.

Attribute


Major Communication alarm



Parameters


Name Meaning



Impact on System

The services are interrupted.

Possible Causesl The source and the sink VCTRUNKs are configured with different numbers of paths or

timeslots.l Errors exist on a link or the link is faulty.

Handling Procedure

Step 1 Check whether the VCTRUNKs at the transmit and the receive directions at the local station areconfigured with the same number of physical paths and timeslots.

If ... Then ...

Not Correct the configuration.

Yes Go to the next step.

Step 2 Check whether a failure or bit errors occur in the line that services pass.

If ... Then ...

Yes Remove the fault.

Not Go to the next step.

Step 3 Replace the board that reports the ALM_GFP_dLFD alarm.

----End

Related Information

None.

A.2.5 ALM_RTC_FAIL


Maintenance Guide


DescriptionThe ALM_RTC_FAIL alarm indicates that the real time clock (RTC) of the equipment fails.

Attribute




None.

Impact on SystemNone.

Possible CausesThe RTC of the SCC board is faulty.

Handling Procedure

Step 1 Reset the SCC board.

If ... Then ...

The ALM_RTC_FAIL alarm is clearedafter the SCC board resets

Reset the NE clock to end theALM_RTC_FAIL alarm.

No alarm exists Go to the next step.

Step 2 Replace the SCC board.

----End


A.2.6 APS_FAIL

DescriptionThe APS_FAIL alarm indicates that the MSP switching fails.



Attribute



Parameters


Name Meaning


Parameter 2 Indicates the number of the protection group that reports the APS_FAIL alarm.For example, "0x01" indicates that the alarm is reported by the first protectiongroup.

Impact on System

The services cannot be switched. If the current paths cannot be used, the services are interrupted.

Possible Causesl Parameters of the MSP are incorrectly configured.

l Parameters of the MSP are lost.

Handling Procedure

Step 1 Check whether the MSP parameters of the node on which the APS_FAIL occurs are correctlyconfigured.

If ... Then ...



Step 2 Check whether the networkwide MS protocol is normal. If not, manually disable and restart theprotocol.

If ... Then ...

The APS_FAIL alarm is cleared after the protocol is restarted End the alarm handling.

The APS_FAIL alarm persists after the protocol is restarted Contact Huawei engineers.

----End


Maintenance Guide



A.2.7 APS_INDI

DescriptionThe APS_INDI is an indication alarm of the MSP switching.

Attribute




Name Meaning


Parameter 2 Indicates the number of the protection group that reports the APS_INDI alarm.For example, "0x01" indicates that the alarm is reported by the first protectiongroup.

Impact on SystemDuring the MSP switching (within 50 ms), the services are interrupted. After the MSP switchingcompletes, the services are restored to normal.

Possible CausesAn MSP switching occurs to the services.

Handling ProcedureDetect the switching causes and take measures accordingly.

NOTE

After a non-revertive 1+1 linear MSP switching occurs, the APS_INDI alarm is generated. When the opticalchannels are restored to normal, the services are not automatically switched to the working path and theAPS_INDI alarm persists. In this case, manually switch the services from the protection path to the workingpath. After the switching succeeds, the APS_INDI alarm is cleared.

----End



Related Information

None.

A.2.8 AU_AIS

Description

The AU_AIS alarm indicates "AU alarm indication". When the AU pointers of three consecutiveframes are detected to be all "1"s, this alarm is reported.

Attribute



Parameters


Name Meaning

Parameter 1 Indicates the number of the line port that reports the alarm. For example,"0x01" indicates the alarm is reported by the first port of the board.

Parameter 2–3 Indicates the number of the AU-4 path that reports the alarm. For example,"0x00 0x01" indicates the alarm is reported by the first AU-4 path in the SDHsignal.

Impact on System

Services on AU-4 paths are interrupted. If the services are configured with protection, theprotection switching can be triggered.

Possible Causesl The AU_AIS alarm is inserted at the opposite station.

l The transmit unit of the opposite station is faulty.

l The receive unit of the local station is faulty.

Handling Procedure

Step 1 Locate the AU-4 channel that reports the alarm according to alarm parameters.

Step 2 Query if the opposite station has the alarms that can trigger the AU_AIS alarm.


Maintenance Guide


If ... Then ...

The opposite station has the alarms that cantrigger the AU_AIS alarm

Handle the alarms at the opposite station first.

The opposite station has no alarms that cantrigger the AU_AIS alarm

Go to the next step.

Step 3 Replace the line board of the opposite station.

If ... Then ...

The alarm disappears after the line boardis replaced

The fault is cleared and the troubleshooting iscomplete.

The alarm persists after the line board isreplaced


Step 4 Replace the cross-connect and timing board of the opposite station.

If ... Then ...

The alarm disappears after the cross-connect and timing board is replaced


The alarm persists after the cross-connectand timing board is replaced


Step 5 Replace the board that reports the alarm.

----End


A.2.9 AU_LOP

DescriptionThe AU_LOP alarm indicates "AU loss of pointer". When the board detects the AU-PTR valueof eight consecutive frames is invalid or is NDF revertive, this alarm is reported.

Attribute



ParametersWhen you view an alarm on the network management system, select the alarm. In the AlarmDetails field display the related parameters of the alarm. The alarm parameters are in thefollowing format: Alarm Parameters (hex): parameter1 parameter2...parameterN, for example,



Alarm Parameters (hex): 0x01 0x08. For details about each parameter, refer to the followingtable.

Name Meaning



Impact on SystemServices on AU-4 paths are interrupted. If the services are configured with protection, theprotection switching can be triggered.

Possible Causesl The transmit unit of the opposite station is faulty.


Handling Procedure

Step 1 Locate the AU-4 channel that reports the alarm according to alarm parameters.


If ... Then ...

The alarm disappears after the line boardis replaced


The alarm persists after the line board isreplaced



If ... Then ...

The alarm disappears after the cross-connect and timing board is replaced


The alarm persists after the cross-connectand timing board is replaced



----End


A.2.10 B1_EXC


Maintenance Guide


DescriptionThe B1_EXC alarm indicates "regenerator section (B1) excessive errors". When the boarddetects the B1 bit errors exceed the preset B1_EXC alarm threshold (10-3 by default), this alarmis reported.

The IF boards that work in the PDH mode may also report this alarm. This alarm is detected bythe self-defined overhead bytes B1 in PDH microwave frames.

Attribute


Minor Service alarm


Name Meaning


Parameter 2–3 Indicates the path number.

Impact on SystemThe services on the port are interrupted.

Possible Causesl The line performance degrades.



Handling ProcedureRefer to section 2.4 Troubleshooting Bit Errors.

----End


A.2.11 B1_SD



Description

The B1_SD alarm indicates "regenerator section (B1) signal degraded". When the board detectsthe B1 bit errors exceed the preset B1_SD alarm threshold (10-6 by default), this alarm is reported.

The IF boards that work in the PDH mode may also report this alarm. This alarm is detected bythe self-defined overhead bytes B1 in PDH microwave frames.

Attribute


Minor Service alarm

Parameters


Name Meaning



Impact on System

The service performance on the port degrades.




Handling Procedure

Refer to section 2.4 Troubleshooting Bit Errors.

----End

Related Information

None.

A.2.12 B2_EXC


Maintenance Guide


Description

The B2_EXC alarm indicates "multiplex section (B2) excessive errors". When the board detectsthe B2 bit errors exceed the preset B2_EXC alarm threshold (10-3 by default), this alarm isreported.

Attribute


Major Service alarm

Parameters


Name Meaning



Impact on System

The services on the port are interrupted. If the services are configured with protection, theprotection switching can be triggered.




Handling Procedure


----End

Related Information

None.

A.2.13 B2_SD



Description

The B2_SD alarm indicates "regenerator section (B2) signal degraded". When the board detectsthe B2 bit errors exceed the preset B2_SD alarm threshold (10-6 by default), this alarm is reported.

Attribute


Minor Service alarm

Parameters


Name Meaning



Impact on System

The services on the interface degrade.




Handling Procedure


----End

Related Information

None.

A.2.14 B3_EXC


Maintenance Guide


Description

The B3_EXC alarm indicates "higher order path (B3) excessive errors". When the board detectsthe B3 bit errors exceed the preset B3_EXC alarm threshold (10-3 by default), this alarm isreported.

Attribute


Major Service alarm

Parameters


Name Meaning


Parameter 2–3 Indicates the number of the AU-4 path that reports the alarm. For example,"0x00 0x01" indicates the alarm is reported by the first AU-4 path.

Impact on System

The services on the path are interrupted.




Handling Procedure


----End

Related Information

None.

A.2.15 B3_EXC_VC3



Description

The B3_EXC_VC3 alarm indicates that excessive B3 bit errors exist in the VC-3 path. When aboard detects that the B3 bit errors cross the preset threshold of the B3_EXC_VC3 (10-3 bydefault), this board reports the alarm.

Attribute


Major QoS alarm

Parameters


Name Meaning


Parameters 2–3 Indicates the number of the path that reports the alarm. For example, "0x000x01" indicates that the alarm is reported by the first VC-3 path.

Impact on System

A large number of bit errors exist in the services in the VC-3 path.


l The transmit part at the opposite station is faulty.

l The receive part of the local station is faulty.

Handling Procedure


----End

Related Information

None.

A.2.16 B3_SD


Maintenance Guide


Description

The B3_SD alarm indicates "higher order path (B3) signal degraded". When the board detectsthe B3 bit errors exceed the preset B3_SD alarm threshold (10-6 by default), this alarm is reported.

Attribute


Minor Service alarm

Parameters


Name Meaning


Parameter 2–3 Indicates the number of the AU-4 path that reports the alarm. For example,"0x00 0x01" indicates the alarm is reported by the first AU-4 path.

Impact on System

Services on the channel degrade. If the services are configured with protection, the protectionswitching can be triggered.




Handling Procedure


----End

Related Information

None.

A.2.17 B3_SD_VC3



Description

The B3_SD_VC3 alarm indicates that B3 bit errors in the VC-3 path deteriorate. When a boarddetects that the B3 bit errors cross the preset threshold of the B3_SD_VC3 (10-6 by default), thisboard reports the alarm.

Attribute


Minor Service alarm

Parameters


Name Meaning


Parameters 2–3 Indicates the number of the path that reports the alarm. For example, "0x000x01" indicates that the alarm is reported by the first VC-3 path.

Impact on System

The services in this VC-3 path degrade.


l The transmit part at the opposite station is faulty.

l The receive part of the local station is faulty.

Handling Procedure


----End

Related Information

None.

A.2.18 BD_NOT_INSTALLED


Maintenance Guide


DescriptionThe BD_NOT_INSTALLED alarm indicates that a slot is not installed with the correspondinglogical board.

Attribute


Minor Equipment alarm


Name Meaning

Parameter 1 Indicates the slot number.

Impact on SystemThe physical board in this slot cannot work.

Possible Causesl The corresponding slot is not configured with the logical board.

l The corresponding physical board is inserted in a wrong slot when this board is used toreplace the original board.

Handling Procedure

Step 1 Check whether the corresponding physical board is inserted in a wrong slot.

If ... Then ...

Yes Insert the corresponding physical board in the correct slot.


Step 2 Configure the logical board in the slot layout figure on the NMS.

----End


A.2.19 BD_STATUS



Description

The BD_STATUS alarm indicates "board not in position".

Attribute



Parameters


None.

Impact on System

The board that reports the alarm cannot operate.

Possible Causes

If the board that reports the alarm is in the IDU, the possible causes are as follows:

l The board is faulty.

l The board is installed in an incorrect slot.

l The board and the backplane are poorly connected.

l The slot is faulty.

If the board that reports the alarm is in the ODU, the possible causes are as follows:

l The ODU is faulty.

l The power supply of the ODU is switched off.

l The IF cables are poorly connected.

l The IF boards are faulty.

Handling Procedure

Step 1 Perform alarm clearing according to the type of the board that reports the alarm.

If ... Then ...

The board that reports the alarm is in the ODU Perform Step 2 to Step 6.

The board that reports the alarm is in the IDU Perform Step 7 to Step 11.

Step 2 Check if the power supply of the ODU is switched on.


Maintenance Guide


If ... Then ...

The switch is turned on Go to the next step.

The switch is turned off Turn on the switch.

Step 3 Check if the IF cables are correctly connected.

If ... Then ...

The cables are correctly connected Go to the next step.

The cables are incorrectly connected Reconnect the cables correctly.

Step 4 Replace the ODU.

If ... Then ...

The alarm disappears after the board isreplaced


The alarm persists after the board isreplaced


Step 5 Replace the IF cables.

If ... Then ...

The alarm disappears after the cables arereplaced


The alarm persists after the cables arereplaced


Step 6 Replace the IF board.

Step 7 Check if the board that reports the alarm is installed in the correct slot.

If ... Then ...

If the board that reports the alarm is installed inan incorrect slot

Re-install the board in the correct slot.

The board that reports the alarm is installed in thecorrect slot


Step 8 Remove and insert the board again.

If ... Then ...

The alarm disappears after the board isremoved and inserted


The alarm persists after the board isremoved and inserted





If ... Then ...





Step 10 Install the board that reports the alarm into another slot.If the board reports no alarm in the new slot, it indicates that the previous slot is faulty.

Step 11 Keep the board working in the new slot, and contact technical support engineers of Huawei.

----End

Related Information

None.

A.2.20 BIP_EXC

Description

The BIP_EXC alarm indicates "BIP excessive errors". When the BIP2 bit errors in the V5 byteare detected over the preset BIP_EXC alarm threshold (10-3 by default), this alarm is reported.

Attribute


Minor Service alarm

Parameters


Name Meaning



Impact on System

The services on the path are interrupted.


Maintenance Guide






----End


A.2.21 BIP_SD

DescriptionThe BIP_SD alarm indicates "BIP signal degraded". When the BIP2 bit errors in the V5 byteare detected over the preset BIP_SD alarm threshold (10-6 by default), this alarm is reported.

Attribute


Minor Service alarm


Name Meaning



Impact on SystemThe services on the path degrade.







----End


A.2.22 CONFIG_NOSUPPORT

DescriptionThe CONFIG_NOSUPPORT alarm indicates "configuration not supported". When the ODUdetects the configured parameters mismatch these of the ODU, this alarm is reported.

Attribute


Major Processing alarm


Name Meaning

Parameter 1 Indicates the unmatched parameter.l "0x01" indicates the frequency configuration error.

l "0x02" indicates the TR spacing configuration error.

l "0x03" indicates the transmit power configuration error.

l "0x04" indicates the ATPC threshold configuration error.

l "0x05" indicates the bandwidth configuration error.

l "0x06" indicates the modulation mode configuration error.

Impact on SystemThe ODU cannot work normally. If the equipment is configured with 1+1 FD protection, themain ODU generates the CONFIG_NOSUPPORT alarm. In this case, an IF 1+1 protectionswitching occurs.


Maintenance Guide


Possible CausesThe type of the ODU mismatches the configured parameters.

Handling Procedure

Step 1 Determine the unmatched parameter according to the alarm parameters.

Step 2 Check if the parameters comply with the requirement of the network planning.

If ... Then ...

The parameters comply with the requirements ofthe network planning

Replace the ODU of the correct type.

The parameters do not comply with therequirements of the network planning

Modify the parameters.

----End


A.2.23 DBMS_ERROR

DescriptionThe DBMS_ERROR alarm indicates that errors occur in the processing of the system database.

Attribute






Name Meaning

Parameter 1 Indicates the type of the database error.l 0x01: Indicates that the entered parameter is illegal.

l 0x02: Indicates that no database file exists.

l 0x03: Indicates that the database storage area numbers are incorrect.

l 0x04: Indicates that a database overwriting occurs.

l 0x05: Indicates that errors occur in the header information check in thedatabase backup area.

l 0x06: Indicates that errors occur in the FAT table structure check in thedatabase storage area.

l 0x07: Indicates that errors occur in the database check in the database backuparea.

l 0x08: Indicates that restoring the database fails.

l 0x09: Indicates an invalid database ID.

l 0x0A: Indicates that the databases are different.

l 0x0B: Indicates that the data is unchecked.

l 0x0E: Indicates that the semaphore handle is invalid.

l 0x0F: Indicates that errors occur in memory applying.

l 0x10: Indicates that errors occur in memory releasing.

l 0x12: Indicates that transmitting the message packets fails.

l 0x13: Indicates that the start record is queried to be incorrect.

l 0x14: The database is null.

l 0x15: Indicates that the mark is incorrectly set.

l 0x16: Indicates that the entered command parameters are incorrect.

l 0x17: Indicates that this is not a backup database.

l 0x18: Indicates that the database is in the protected mode.

l 0x19: Indicates that the configuration is not verified.

Parameter 2 Indicates the database memory area in which errors occur.l 0x00: Indicates the database in the FDB0.

l 0x01: Indicates the database in the FDB1.

l 0x02: Indicates the database in the DRDB.

Parameter 3 Indicates the incorrect database ID.l 0x00: Indicates the IDs of all the databases in the storage area.

l 0x01–0xff: Indicates the ID of a specific database.

Impact on SystemWhen the DBMS_ERR alarm occurs, it indicates that errors occur in the system databaseprocessing. The system configuration may be lost. As a result, the failure indication is returnedfor some query and setting commands, and some system functions cannot work.


Maintenance Guide


Possible Causesl The database operation fails.

l The data in the database is damaged.

l The SCC board is faulty.

Handling Procedure

Step 1 Reset the SCC board.

If ... Then ...

The DBMS_ERROR alarm is cleared after the SCC board resets End the alarm handling.

The DBMS_ERROR alarm persists after the SCC board resets Go to the next step.

Step 2 Replace the board that reports the DBMS_ERROR alarm.

----End

Related Information

None.

A.2.24 DBMS_PROTECT_MODE

Description

The DBMS_PROTECT_MODE alarm indicates that the system database is in the protectedmode.

Attribute


Critical Processing alarm

Parameters

None.

Impact on System

When the DBMS_PROTECT_MODE alarm occurs, it indicates that errors occur in the systemdatabase processing. The system configuration may be lost. As a result, the failure indication isreturned for some query and setting commands, and some system functions cannot work.

Possible Causes

The NE software resets frequently.



Handling ProcedureReplace the board that reports the DBMS_PROTECT_MODE alarm.

----End


A.2.25 DN_E1_AIS

DescriptionThe DN_E1_AIS alarm "2M down signal alarm indication". When the tributary board detectsthe downlink E1 signal is all "1"s, this alarm is reported.

Attribute




Name Meaning



Impact on SystemThe E1 signals are unavailable.

Possible Causesl The tributary board of the opposite station has transmitted the E1_AIS signal.

l The receive unit of the tributary board of the local station is faulty.

l The cross-connect board of the local station is faulty.

Handling Procedure

Step 1 Check if the opposite equipment has the UP_E1_AIS or T_ALOS alarm.


Maintenance Guide


If ... Then ...

There is the UP_E1_AIS alarm Clear the alarm.

There is no UP_E1_AIS alarm Go to the next step.


If ... Then ...





Step 3 Replace the cross-connect and timing board of the local station.

----End


A.2.26 E1_LOC

DescriptionThe E1_LOC alarm indicates "loss of E1 clock". When the tributary board cannot extract theclock from the E1 signal, this alarm is reported.

Attribute




Name Meaning

Parameter 1 Indicates the number of the tributary interface/path that reports the alarm. Forexample, "0x01" indicates the alarm is reported by the first interface/path of theboard.

Impact on SystemThis alarm has no impact on the services.



Possible Causesl The input E1 signal waveform is abnormal.


Handling Procedure

Step 1 Check if the opposite equipment is faulty.

If ... Then ...

The opposite equipment is faulty Clear the fault.

The opposite equipment is not faulty Go to the next step.

Step 2 Check if there is external interference that causes abnormal E1 signal waveform.

If ... Then ...

There is external interference The fault is cleared and the troubleshooting is complete.

There is no external interference Contact technical support engineers of Huawei.


----End

Related Information

None.

A.2.27 E1_LOS

Description

The E1_LOS alarm indicates "2M line loss of signal". When the tributary board detects theuplink E1 signal is all "0"s, this alarm is reported.

Attribute


Minor Communication alarm

Parameters



Maintenance Guide


Name Meaning



Impact on SystemE1 services are interrupted.

Possible Causesl The input E1 signal is abnormal.

l The tributary board of the local station is faulty.

Handling Procedure


If ... Then ...




----End


A.2.28 ESN_FAILED

DescriptionThe ESN_FAILED alarm indicates that the electronic serial number (ESN) of the equipmentfails.

Attribute







Name Meaning

Parameter 1 Indicates the number of the SCC board that reports the ESN_FAILED alarm.

Impact on System

None.

Possible Causesl Reading the equipment ESN fails.

l Errors occur in the verification of the read equipment ESN.

Handling Procedure

Replace the SCC board that reports the ESN_FAILED alarm.

----End

Related Information

None.

A.2.29 ESN_INVALID

Description

The ESN_INVALID alarm indicates that the electronic serial number (ESN) of the equipmentis invalid.

Attribute



Parameters


Name Meaning

Parameter 1 Indicates the number of the SCC board that reports the ESN_INVALID alarm.


Maintenance Guide


Impact on System

None.

Possible Causes

Verification of the ESN that is read from the SCC board is normal, but the ESN cannot beidentified.

Handling Procedure

Contact Huawei engineers to upgrade the NE software.

----End

Related Information

None.

A.2.30 ETH_LOS

Description

The ETH_LOS is an alarm indicating loss of network port connection on the data board.

Attribute



Parameters


Name Meaning

Parameter 1 Indicates the number of the port that reports the alarm. For example, "0x01"indicates that the alarm is reported by the first Ethernet port of this board.

Parameters 2–3 The value is always 0x00 0x01.

Impact on System

The services of the port that reports the ETH_LOS alarm are interrupted.



Possible Causesl The network cable connection at the port where the ETH_LOS alarm occurs is faulty.

l The equipment that interconnects with the port where the ETH_LOS alarm occurs is faulty.

l The working mode of the port where the ETH_LOS alarm occurs is different from that ofthe interconnected equipment.

Handling Procedure

Step 1 Check whether the network cable that is connected to the port where the ETH_LOS alarm occursis loose or damaged.

If ... Then ...

Yes Reconnect or replace the network cable.


Step 2 Check whether the equipment that interconnects with the port where the ETH_LOS alarm occursis faulty.

If ... Then ...

Yes Remove the fault of the interconnected equipment.


Step 3 Check whether the working mode of the port where the ETH_LOS alarm occurs is the same asthat of the interconnected equipment.

If ... Then ...

Not Correct the configuration of the port working modes.


Step 4 Replace the board on which the ETH_LOS alarm occurs.

----End


A.2.31 EXT_SYNC_LOS

DescriptionThe EXT_SYNC_LOS alarm indicates "loss of external synchronous source".

Attribute


Critical Equipment alarm


Maintenance Guide


Parameters


Name Meaning

Parameter 1 Indicates the number of the external clock that reports the alarm. For example,"0x01" indicates the alarm is reported by the first external clock.

Impact on Systeml If the clock source priority table is configured with the external and internal clock sources

only, the internal clock source is traced and the clock enters the free-run mode after theloss of the external clock source.

l If the clock source priority table is configured with other valid clock sources, the loss ofthe external clock source can trigger clock protection switching.

Possible Causes

The clock priority table has the external clock source, but the external clock source cannot bedetected or is unavailable.

Handling Procedure

Step 1 Check if the opposite clock source device is faulty.

If ... Then ...



Step 2 Check if the external clock cable is normal.

If ... Then ...

The cables are abnormal Replace the cables.

The cables are normal Go to the next step.

Step 3 Replace the cross-connect and timing board that connects the clock source reporting the alarm.

----End

Related Information

None.

A.2.32 FAN_FAIL



Description

The FAN_FAIL alarm indicates "fan failed".

Attribute



Parameters

None.

Impact on System

The system heat dissipation is affected.

Possible Causesl The board is faulty.


Handling Procedure

Step 1 Remove and insert the fan board. Clear the dust on the fan and re-install the fan board.

If ... Then ...






----End

Related Information

None.

A.2.33 FCS_ERR

Description

The FCS_ERR alarm indicates that errors occur in the verification of the frame check sequence(FCS). If errors occur when a board performs the FCS verification of the received frames, thisboard reports the FCS_ERR alarm.


Maintenance Guide


Attribute




Name Meaning


Parameters 2–3 Indicates the number of the path that reports the alarm. For example, "0x000x01" indicates that the alarm is reported by the first path.

Impact on SystemWhen the encapsulation protocol or the encapsulation parameter of the Ethernet service sourceis different from that of the Ethernet service sink, the service is interrupted or bit errors exist inthe service.

Possible Causesl The encapsulation protocol or the encapsulation parameter of the Ethernet service source

is different from that of the Ethernet service sink.l Bit errors exist in the service path.

Handling Procedure

Step 1 Check whether the encapsulation protocol of the Ethernet service source is the same as that ofthe Ethernet service sink.

If ... Then ...



Step 2 Check whether the encapsulation parameter of the Ethernet service source is the same as that ofthe Ethernet service sink.

If ... Then ...



Step 3 Check whether any bit error alarm or performance event occurs on the line boards through whichthe service travels.



If ... Then ...

Yes Handle the alarm or performance event.

No Go to the next step.

Step 4 Replace the board on which the FCS_ERR alarm occurs.

If ... Then ...

The FCS_ERR alarm is cleared after theboard is replaced

The fault is removed. End the alarm handling.

The FCS_ERR alarm persists after theboard is replaced


Step 5 Replace the cross-connect board.

----End


A.2.34 HARD_BAD

DescriptionThe HARD_BAD alarm indicates "hardware error".

Attribute





Maintenance Guide


Name Meaning

Parameter 1 Indicates the fault cause.l "0x01" indicates the power module is working abnormally.

l "0x02" indicates the board is improperly installed.

l "0x03" indicates the 38M system clock 1 is abnormal.

l "0x04" indicates the 38M system clock 2 is abnormal.

l "0x05" indicates the 2M clock source is abnormal.

l "0x06" indicates the digital phased-locked loop is abnormal.

l "0x07" indicates the 38M service clock is lost.

l "0x08" indicates the bus is abnormal.

l "0x09" indicates the TPS protection board is abnormal.

l "0x0A" indicates the primary crystal oscillator stops oscillating.

l "0x0B" indicates the frequency offset of the primary crystal oscillator isexcessive.

l "0x0C" indicates the secondary crystal oscillator stops oscillating.

l "0x0D" indicates the processor (CPU/DSP/coprocessor) is faulty.

l "0x0E" indicates the storage components are faulty.

l "0x0F" indicates the programmable logic device is faulty.

l "0x10" indicates the SDH components are faulty.

l "0x11" indicates the data communication components are faulty.

l "0x12" indicates the clock components are faulty.

l "0x13" indicates the interface components are faulty.

l "0x14" indicates the power components are faulty.

l "0x15" indicates other faults.

l "0x16" indicates the analog phase-locked loop is abnormal.

l "0x17" indicates the 32M clock is unavailable.



Impact on SystemThe board that reports the alarm cannot operate.



l The slot is faulty.



Handling Procedure

Step 1 Remove and insert the board again.

If ... Then ...






If ... Then ...





Step 3 Install the board that reports the alarm into another slot.If the board reports no alarm in the new slot, it indicates that the previous slot is faulty.

Step 4 Keep the board working in the new slot, and contact technical support engineers of Huawei.

----End


A.2.35 HP_CROSSTR

DescriptionThe HP_CROSSTR alarm indicates "higher order path performance over threshold". When theboard detects higher order path bit error performance events exceed the preset threshold, thisalarm is reported.

Attribute


Minor Service alarm



Maintenance Guide


Name Meaning

Parameter 1 Indicates the number of the line port that reports the alarm. For example,"0x01" indicates the alarm is reported by first port of the board.

Parameter 2–3 Indicates the number of the path that reports the alarm.

Parameter 4–5 l The higher two bits of Parameter 4 indicate the performance monitoringperiod. When the value of the higher two bits is "01", the monitoring periodis 15 minutes. When the value of the higher two bits is "02", the monitoringperiod is 24 hours.

l The lower six bits of Parameter 4 together with Parameter 5 indicate theperformance event ID.

Impact on SystemThe services contain a large amount of bit errors and the services may be interrupted.

Possible CausesHigher order path bit error performance events exceed the preset threshold.

Handling Procedure

Step 1 View the threshold crossing record of higher order path bit error performance events to determinethe performance event that exceeds the preset threshold.

Step 2 Handle the performance event that exceeds the threshold.

----End


A.2.36 HP_LOM

DescriptionThe HP_LOM alarm indicates "higher order path loss of multiframe". When the board detectsthe H4 byte and the expected multiframe sequence mismatch, this alarm is reported.

Attribute



ParametersWhen you view an alarm on the network management system, select the alarm. In the AlarmDetails field display the related parameters of the alarm. The alarm parameters are in the



following format: Alarm Parameters (hex): parameter1 parameter2...parameterN, for example,Alarm Parameters (hex): 0x01 0x08. For details about each parameter, refer to the followingtable.

Name Meaning



Impact on SystemThe services on the channel are interrupted. If the services are configured with protection, theprotection switching can be triggered.



Handling Procedure


If ... Then ...






If ... Then ...






----End


A.2.37 HP_RDI


Maintenance Guide


Description

The HP_RDI alarm indicates "higher order path remote defect indication". When the boarddetects bit 5 of the G1 byte is "1", this alarm is reported.

Attribute



Parameters


Name Meaning



Impact on System

This alarm does not affect the local station. It indicates that the receiving services of the oppositestation are interrupted.

Possible Causes

The local station detects an alarm from the opposite station, indicating remote higher order pathdefect.

Handling Procedure

Step 1 Determine the AU-4 path that reports the alarm according to alarm parameters.

Step 2 Clear the alarm on the AU-4 path of the opposite station.

----End

Related Information

None.

A.2.38 HP_REI



Description

The HP_REI alarm indicates "higher order path remote error indication". When the board detectsbit 1 to bit 4 of the G1 byte is "1" to "8", this alarm is reported.

Attribute


Warning Communication alarm

Parameters


Name Meaning



Impact on System

The alarm does not affect the local station. It only indicates that the services received by theopposite station have bit errors.

Possible Causes

The local station detects an alarm from the opposite station, indicating remote higher order pathbit errors.

Handling Procedure


Step 2 Handle the HP_BBE performance event on the AU-4 path of the opposite station.

----End

Related Information

None.

A.2.39 HP_SLM


Maintenance Guide


Description

The HP_SLM alarm indicates "higher order path signal label mismatch". When the board detectsthe C2 byte mismatch, this alarm is reported.

Attribute



Parameters


Name Meaning



Impact on System

None.

Possible Causesl The C2 byte to be received by the local station mismatches the C2 byte transmitted by the

opposite station.

l The data configuration is wrong.

Handling Procedure


Step 2 If the port that reports the alarm is the SDH port used to interconnect ATM/Ethernet equipment,configure the services to be VC-4 pass-through services.

If ... Then ...

The alarm disappears after theconfigurations are modified


The alarm still persists after theconfigurations are modified




Step 3 Unify the service types at the source and sink stations of the AU-4 channel.

----End

Related Information

None.

A.2.40 HP_TIM

Description

The HP_TIM alarm indicates "higher order path trace identifier mismatch". When the boarddetects the J1 byte mismatch, this alarm is reported.

Attribute



Parameters


Name Meaning



Impact on System

If the services are configured with protection and this alarm is the triggering condition, theprotection switching can be triggered.

Possible Causesl The J1 byte to be received at the local station is different from the J1 byte transmitted from

the opposite station.

l Data configuration at the intermediate nodes is incorrect.


Maintenance Guide


Handling Procedure


Step 2 If the port that reports the alarm is the SDH port used to interconnect ATM/Ethernet equipment,configure the services to be VC-4 pass-through services.

If ... Then ...

The alarm disappears after theconfigurations are modified


The alarm still persists after theconfigurations are modified


Step 3 Set the J1 byte to be received of the local station to the disable mode. Alternatively, set the J1byte to be received at the local station to be the same as that transmitted from the opposite station.

Step 4 Check whether the cross-connections of the intermediate nodes through which the service travelsare correctly configured. If not, correct the cross-connection configuration.

----End

Related Information

None.

A.2.41 HP_UNEQ

Description

The HP_UNEQ alarm indicates "higher order path unequipped". When the board detects the C2byte is "0", this alarm is reported.

Attribute



Parameters


Name Meaning




Name Meaning


Impact on System

Services on the AU-4 path are unavailable. If the services are configured with protection andthis alarm is the triggering condition, the protection switching can be triggered.

Possible Causes

The line port of the local station is configured with services, but the line port of the oppositestation is not.

Handling Procedure


Step 2 Configure line services for the opposite station.

----End

Related Information

None.

A.2.42 HPAD_CROSSTR

Description

The HPAD_CROSSTR alarm indicates "higher order path adaptation performance overthreshold". When the board detects the TU pointer adaptation performance events over the presetthreshold, this alarm is reported.

Attribute


Minor Service alarm

Parameters



Maintenance Guide


Name Meaning





Impact on SystemBit errors may occur to the services.

Possible CausesThe TU pointer adaptation performance events exceed the preset threshold.

Handling Procedure

Step 1 View the threshold crossing record of the TU pointer adaptation performance events, anddetermine the performance event that exceeds the preset threshold.


----End


A.2.43 HSB_INDI

DescriptionThe HSB_INDI alarm indicates "microwave equipment HSB switching indication".

Attribute







Name Meaning

Parameter 1 Indicates the protection group number.

Parameter 2 Indicates the slot where the working board is seated.

Impact on System

The services are interrupted during the protection switching and return to normal after theswitching is complete.

Possible Causes

1+1 HSB protection switching occurs.

Handling Procedure

Determine the cause for switching and perform relevant operations.

----End

Related Information

None.

A.2.44 HSM_INDI

Description

The HSM_INDI alarm indicates "microwave channels HSM switching indication".

Attribute



Parameters


Name Meaning

Parameter 1 Indicates the protection group number.


Maintenance Guide


Name Meaning


Impact on System

Bit errors cannot be generated during channel switching. This alarm has no impact on theservices.

Possible Causes

1+1 FD/SD protection switching occurs.

Handling Procedure


----End

Related Information

None.

A.2.45 IF_INPWR_ABN

Description

The IF_INPWR_ABN alarm indicates "abnormal input IF power of the ODU".

Attribute



Parameters


Name Meaning

Parameter 1 l "0x01" indicates input power is too high.

l "0x02" indicates input power is too low.



Impact on System

The services on the ODU are interrupted. If 1+1 protection is configured, 1+1 HSB switchingcan be triggered.

Possible Causesl There is an inloop operation on the IF port.

l The IF boards are faulty.

l The IF cables are faulty.

l The ODU is faulty.

Handling Procedure

Step 1 Check the loopback status of the IF port.

If ... Then ...

There is an inloop operation on the IF port Cancel the loopback operation.

The IF port is not looped back Go to the next step.

Step 2 Check if the IF cables are soggy, broken, or pressed.

If ... Then ...

The IF cables are soggy, broken, or pressed Replace the IF cables.

The IF cables are not soggy, broken, or pressed Go to the next step.

Step 3 Check if the cable connector workmanship meets the requirement.

If ... Then ...

It does not meet the requirement Remade connectors.

It meets the requirement Go to the next step.

Step 4 Replace the IF board connecting with the ODU that reports the alarm.

If ... Then ...





Step 5 Replace the ODU that reports the alarm.

----End

Related Information

None.


Maintenance Guide


A.2.46 IN_PWR_HIGH

DescriptionThe IN_PWR_HIGH alarm indicates "input power too high".

Attribute




Name Meaning

Parameter 1 Indicates the number of the optical interface that reports the alarm. For example,"0x01" indicates the alarm is reported by the first optical interface of the board.

Impact on SystemBit errors occur to the services of the optical interface.

Possible Causesl The transmit optical power of the opposite station is too high.

l The type of the optical module is incorrect.

Handling Procedure

Step 1 Determine the optical interface that reports the alarm according to alarm parameters.

Step 2 Check if the type of the SFP optical modules of the receive and transmit ends is correct accordingto transmission distance.

If ... Then ...

The type is incorrect Replace the optical modules.

The type is correct Go to the next step.

Step 3 Query the performance events of the transmit optical power at the opposite station.

If ... Then ...

The transmit optical power does not meet the requirement Replace the optical modules.



If ... Then ...

The transmit optical power meets the requirement Go to the next step.

Step 4 Add a proper optical attenuator to reduce the receive optical power.

----End


A.2.47 IN_PWR_LOW

DescriptionThe IN_PWR_LOW alarm indicates "input power too low".

Attribute




Name Meaning


Impact on SystemBit errors may occur to the services on the optical interface.

Possible Causesl The transmit optical power of the opposite station is too low.

l The fiber performance degrades.

l The type of the optical module is incorrect.

Handling Procedure



Maintenance Guide


Step 2 Check if the type of the SFP optical modules of the receive and transmit ends is correct accordingto transmission distance.

If ... Then ...

The type is incorrect Replace the optical modules.

The type is correct Go to the next step.

Step 3 Query the performance events of the transmit optical power at the opposite station.

If ... Then ...

The transmit optical power does not meet the requirement Replace the optical modules.

The transmit optical power meets the requirement Go to the next step.

Step 4 Clean the optical fiber connector.

If ... Then ...

The alarm disappears after the connectoris cleaned


The alarm still persists after theconnector is cleaned


Step 5 Check if the fiber is broken or pressed.

If ... Then ...

The fiber is broken or pressed Replace the fiber.

The fiber is not broken or pressed Go to the next step.

Step 6 Add a proper optical amplifier to increase the receive optical power.

----End

Related Information

None.

A.2.48 J0_MM

Description

The J0_MM alarm indicates "trace identifier mismatch". When the board detects the J0 bytemismatch, this alarm is reported.

Attribute






Name Meaning




Possible CausesThe J0 byte to be received by the local station mismatches the J0 byte transmitted by the oppositestation.

Handling ProcedureStep 1 Determine the line port that reports the alarm according to alarm parameters.

Step 2 Set the J0 byte to be received of the local station to the disable mode.

----End


A.2.49 K1_K2_M

DescriptionThe K1_K2_M is an indication alarm of mismatch of the K1 and K2 bytes. If a board detectsthat the transmitted K1 byte (bits 5–8) indicates a path number different from that the receivedK2 byte indicates, this board reports the K1_K2_M alarm.

Attribute





Maintenance Guide



Name Meaning

Parameter 1 Indicates the type of a protection group. For example, "0x01" indicates the linearMSP.

Parameter 2 Indicates the number of the protection group that reports the K1_K2_M alarm.For example, "0x01" indicates that the alarm is reported by the first protectiongroup.

Impact on SystemWhen the K1_K2_M occurs, the MSP switching might be incorrect or even fail.

Possible Causesl The switching modes of the service source and sink are single-ended switching and dual-

ended switching, respectively.l The equipment is faulty.

Handling Procedure

Step 1 Check whether the services are correctly configured.

If ... Then ...



Step 2 Check whether the fiber connections are correct.

If ... Then ...

Not Correct the fiber connections.


Step 3 Replace the line board at the opposite station.

If ... Then ...

The K1_K2_M alarm is cleared after theboard is replaced


The K1_K2_M persists Go to the next step.

Step 4 Replace the board that reports the K1_K2_M alarm.

----End




A.2.50 K2_M

DescriptionThe K2_M is an indication alarm of mismatch of the K2 byte. When a board detects that thereceived K2 byte (bit 5) indicates a protection mode different from that of the local NE, thisboard reports the K2_M alarm.

Attribute




Name Meaning

Parameter 1 Indicates the type of a protection group. For example, "0x01" indicates the linearMSP.

Parameter 2 Indicates the number of the protection group that reports the K2_M alarm. Forexample, "0x01" indicates that the alarm is reported by the first protection group.

Impact on SystemWhen the K2_M occurs, the MSP switching might be incorrect or even fail.

Possible Causesl Two NEs on a linear MS are configured with different MSP modes (1+1 or 1:N).

l When the MSP switching occurs, the protocol at the opposite station is disabled.

l The equipment is faulty.

Handling Procedure

Step 1 Check whether two terminal NEs on a linear MS are configured with the same MSP mode (1+1or 1:N).

If ... Then ...



Step 2 Check whether the fiber connections are correct.


Maintenance Guide


If ... Then ...

Not Correct the fiber connections.


Step 3 Replace the line board at the opposite station.

If ... Then ...

The K2_M alarm is cleared after the boardis replaced


The K2_M persists Go to the next step.

Step 4 Replace the board that reports the K2_M alarm.

----End

Related Information

None.

A.2.51 LASER_CLOSED

Description

The LASER_CLOSED alarm indicates "laser closed alarm".

Attribute



Parameters


Name Meaning


Impact on System

The optical interface cannot carry services.



Possible CausesThe laser is shut down at the local station.

Handling Procedure


Step 2 Find out why the laser is shut down and turn it on in a timely manner.

----End


A.2.52 LASER_MOD_ERR_EX

DescriptionThe LASER_MOD_ERR_EX alarm indicates the pluggable optical module on the boardmismatches the optical interface.

Attribute




Name Meaning


Impact on SystemThe services on the optical interface where the alarm occurs are interrupted.

Possible Causesl The optical module installed on the optical interface does not match the optical interface

rate.l The optical module is faulty.


Maintenance Guide


l The board is faulty.

Handling Procedure

Step 1 Check if the optical module installed on the optical interface matches the optical interface rate.

If ... Then ...

The optical module installed on the opticalinterface does not match the opticalinterface rate

Replace the optical module with one thatmatches the optical interface rate.

The optical module installed on the opticalinterface matches the optical interface rate

Replace the optical module with a new one ofthe same type.

Step 2 Check if the alarm is cleared.

If ... Then ...

The alarm disappears after the opticalmodule is replaced


The alarm persists after the opticalmodule is replaced


Step 3 Replace the reporting board.

----End


A.2.53 LCAS_FOPR

DescriptionThe LCAS_FOPR alarm indicates that the link capacity adjustment scheme (LCAS) protocol inthe receive direction fails. When the receive part of the LCAS module of a board detects anabnormal state in which the LCAS might fail to negotiate or cannot correctly negotiate, thisboard reports the LCAS_FOPR alarm.

Attribute







Name Meaning



Impact on System

The Ethernet service is abnormal.

Possible Causesl The downlink virtual concatenation group (VCG) receives repeated sequence numbers due

to incorrect configuration or bit errors in the link.

l The LCAS function of the opposite VCG is disabled.

l The downlink VCG simultaneously receives the FIXED and other LCAS control bytes dueto incorrect configuration or bit errors in the link.

Handling Procedure

Step 1 Check whether the LCAS enable state and the LCAS parameters are the same at near and farends.

If ... Then ...

Not Correctly enable the LCAS protocol at the local and the opposite NEs.


Step 2 Check whether configurations of the local and opposite NEs are correct. That is, check whetheran VCG at one NE is connected to multiple VCGs at the opposite NE.

If ... Then ...

The configuration is incorrect Correct the configuration.

The configuration is correct Go to the next step.

Step 3 Check whether a fault such as failure or bit errors occurs in the service link.

If ... Then ...



Step 4 Disable the LCAS protocol at both the NEs, and then restart the protocol.

Step 5 Replace the board that reports the LCAS_FOPR alarm.

----End


Maintenance Guide



A.2.54 LCAS_FOPT

DescriptionThe LCAS_FOPT alarm indicates that the the LCAS protocol in the transmit direction fails.When the transmit part of the LCAS module of a board detects an abnormal state in which theLCAS might fail to negotiate or cannot correctly negotiate, this board reports the LCAS_FOPTalarm.

Attribute




Name Meaning



Impact on SystemThe Ethernet service is abnormal.

Possible Causesl The LCAS protocol configuration is incorrect.

l The link is faulty.

Handling Procedure

Step 1 Check whether the LCAS enable state and the LCAS parameters are the same at both ends ofthe link.

If ... Then ...

Not Correctly enable the LCAS protocol at both ends of the link.



If ... Then ...


Step 2 Check whether a fault such as failure or bit errors occurs in the service link.

If ... Then ...



Step 3 Disable the LCAS protocol at both ends of the link, and then restart the protocol.

If ... Then ...

The LCAS_FOPT alarm is cleared after the protocol is restarted End the alarm handling.

The LCAS_FOPT alarm persists after the protocol is restarted Go to the next step.

Step 4 Replace the board that reports the LCAS_FOPT alarm.

----End


A.2.55 LCAS_PLCR

DescriptionThe LCAS_PLCR alarm indicates that part of the LCAS bandwidth in the receive direction islost. When a board detects that the number of paths that carry the overloads in the receivedirection of the VCTRUNK with the LCAS enabled is less than the preset number but is notzero, this board report the LCAS_PLCR alarm.

Attribute


Minor Service alarm


Name Meaning



Maintenance Guide


Name Meaning


Impact on System

The available Ethernet service bandwidth is smaller than the configured bandwidth.

Possible Causesl The number of paths or timeslots that are configured for the VCTRUNK at the opposite

NE is different from that at the local NE.

l Some paths in the transmit direction of the opposite NE are faulty.

l Some paths in the receive direction of the local NE are faulty.

Handling Procedure


If ... Then ...



Step 2 Check whether any path alarm exists in the transmit direction of the opposite NE.

If ... Then ...

Yes Handle the alarms.


Step 3 Replace the board that reports the LCAS_PLCR alarm.

----End

Related Information

None.

A.2.56 LCAS_PLCT

Description

The LCAS_PLCT alarm indicates that all the LCAS bandwidth in the transmit direction is lost.When a board detects that the number of paths that carry the overloads in the transmit directionof the VCTRUNK with the LCAS enabled is less than the preset number but is not zero, thisboard report the LCAS_PLCT alarm.



Attribute


Minor Service alarm


Name Meaning



Impact on SystemThe available Ethernet service bandwidth is smaller than the configured bandwidth.


NE is different from that at the local NE.l Some paths in the receive direction of the opposite NE are faulty.

l Some paths in the transmit direction of the local NE are faulty.

Handling Procedure

Step 1 Check whether the VCTRUNKs at the transmit direction at the local NE and the receivedirections at the opposite NE are configured with the same number of physical paths andtimeslots.

If ... Then ...



Step 2 Check whether any path alarm exists in the receive direction of the opposite NE.

If ... Then ...



Step 3 Replace the board that reports the LCAS_PLCT alarm.

----End


Maintenance Guide


Related Information

None.

A.2.57 LCAS_TLCR

Description

The LCAS_TLCR alarm indicates that all the bandwidth in the LCAS receiving direction is lost.If zero path in the receive direction of the VCTRUNK with LCAS enabled carries the overloadbut more than zero path is configured to carry the overload, the LCAS_TLCR alarm is reported.

Attribute


Major Service alarm

Parameters


Name Meaning



Impact on System

The Ethernet service is interrupted.


NE is different from that at the local NE.

l The paths in the transmit direction of the opposite NE are faulty.

l The paths in the receive direction of the local NE are faulty.

Handling Procedure




If ... Then ...




If ... Then ...



Step 3 Replace the board that reports the LCAS_TLCR alarm.

----End


A.2.58 LCAS_TLCT

DescriptionThe LCAS_TLCT alarm indicates that all the LCAS bandwidth in the transmit direction is lost.If zero path in the transmit direction of the VCTRUNK with LCAS enabled carries the overloadbut more than zero path is configured to carry the overload, the LCAS_TLCT alarm is reported.

Attribute


Major Service alarm


Name Meaning



Impact on SystemThe Ethernet service is interrupted.


Maintenance Guide



NE is different from that at the local NE.l The paths in the transmit direction of the opposite NE are faulty.

l The paths in the receive direction of the local NE are faulty.

Handling Procedure


If ... Then ...




If ... Then ...



Step 3 Replace the board that reports the LCAS_TLCT alarm.

----End


A.2.59 LOOP_ALM

DescriptionThe LOOP_ALM alarm indicates "path loopback".

Attribute






Name Meaning



Parameter 4 Indicates the type of loopback.l "0x00" indicates optical/electrical port inloop.

l "0x01" indicates optical/electrical port outloop.

l "0x02" indicates path inloop.

l "0x03" indicates path outloop.

l "0x04" indicates loopback at the user side.

l "0x05" indicates loopback at the microwave combination side.

l "0x06" indicates SPI inloop.

l "0x07" indicates SPI outloop.

l "0x08" indicates ATM layer inloop.

l "0x09" indicates ATM layer outloop.

l "0x0A" indicates PHY layer inloop.

l "0x0B" indicates PHY layer outloop.

l "0x0C" indicates MAC layer inloop.

l "0x0D" indicates MAC layer outloop.

l "0x0E" indicates VC-4 timeslot inloop.

l "0x0F" indicates VC-4 timeslot outloop.

l "0x10" indicates VC-3 timeslot inloop.

l "0x11" indicates VC-3 timeslot outloop.

l "0x12" indicates VC-12 timeslot inloop.

l "0x13" indicates VC-12 timeslot outloop.

l "0x14" indicates IF outloop.

l "0x15" indicates IF inloop.

l "0x16" indicates RF inloop.

l "0xFF" indicates one of the above loopback modes.

Impact on SystemThe loopback port/path cannot carry services.

Possible CausesLoopback is performed at the local station.


Maintenance Guide


Handling Procedure

Step 1 Determine the type of loopback according to alarm parameters.

Step 2 Find out why the loopback is performed and cancel the loopback.

----End

Related Information

None.

A.2.60 LPS_UNI_BI_M

Description

The LPS_UNI_BI_M alarm indicates that the single-ended/dual-ended mode of the linear MSPmismatches.

Attribute



Parameters


Name Meaning

Parameter 1 Indicates the number of the protection group that reports the alarm. For example,"0x01" indicates that the alarm is reported by the first protection group.

Impact on System

The system performs the switching in the single-ended mode.

Possible Causes

The LPS_UNI_BI_M alarm occurs under the following conditions:l The switching modes (single-ended or dual-ended) at the local and opposite NEs are

different.l The last three bits of the K2 byte are set to the indicated mode.

l The type of the protocol is set to the restructure protocol.



Handling Procedure

Change the MSP switching mode. Set the linear MSP switching modes at the local and theopposite NEs to be the same.

----End

Related Information

None.

A.2.61 LP_CROSSTR

Description

The LP_CROSSTR alarm indicates "lower order path performance parameter over threshold".When the board detects the lower order path bit error performance events over the presetthreshold, this alarm is reported.

Attribute


Minor Service alarm

Parameters


Name Meaning





Impact on System

The services contain a large amount of bit errors and the services may be interrupted.


Maintenance Guide


Possible CausesLower order path bit error performance events exceed the preset threshold.

Handling Procedure

Step 1 View the threshold crossing record of lower order path bit error performance events to determinethe performance event that exceeds the preset threshold.


----End


A.2.62 LP_R_FIFO

DescriptionThe LP_R_FIFO alarm indicates "FIFO overflow on the receiving side of the lower order path".

Attribute




Name Meaning



Impact on SystemBit errors occur to the services.


l The clock at the local station and that at the opposite station are asynchronous.



Handling Procedure

Step 1 Query if there are TU pointer adjustment performance events at the local and opposition stations.

If ... Then ...

There are TU pointer adjustment performance events Handle the performance events.

There are no TU pointer adjustment performance events Go to the next step.


----End

Related Information

None.

A.2.63 LP_RDI

Description

The LP_RDI alarm indicates "lower order path remote defect indication". When the board detectsbit 8 of the V5 byte is "1", this alarm is reported.

Attribute



Parameters


Name Meaning



Impact on System

This alarm does not affect the local station. It indicates that the receiving services of the oppositestation are interrupted.


Maintenance Guide


Possible CausesThe local station detects an alarm from the opposite station, indicating remote lower order pathdefect.

Handling ProcedureClear the alarm on the lower order path of the opposite station.

----End


A.2.64 LP_RDI_VC12

DescriptionThe LP_RDI_VC12 alarm is an VC-12 level path remote defect indication. If a board detectsthat bit 8 of the V5 byte is 1, this board reports this alarm.

Attribute




Name Meaning


Parameters 2–3 Indicates the number of the VC-12 path that reports the alarm. For example,"0x00 0x01" indicates that the alarm is reported by the first VC-12 path.

Impact on SystemThis alarm does not affect the local station. It indicates that the receiving services of the oppositestation are interrupted.

Possible CausesThe local NE detects the return message from the opposite NE that indicates the service in alower order path fails to be received at the opposite NE.



Handling ProcedureHandle the lower order path alarm at the opposite NE.

----End


A.2.65 LP_RDI_VC3

DescriptionThe LP_RDI_VC3 alarm is an VC-3 level path remote defect indication. If a board detects thatbit 5 of the G1 byte is 1, this board reports this alarm.

Attribute




Name Meaning




Possible CausesThe local NE detects the return message from the opposite NE that indicates the service in alower order path fails to be received at the opposite NE.

Handling ProcedureHandle the lower order path alarm at the opposite NE.

----End


Maintenance Guide



A.2.66 LP_REI

DescriptionThe LP_REI alarm indicates "lower order path remote error indication". When the board detectsbit 3 of the V5 byte is "1", this alarm is reported.

Attribute




Name Meaning



Impact on SystemThis alarm does not affect the local station. It indicates that the receiving services of the oppositestation have bit errors.

Possible CausesThe local station detects an alarm from the opposite station, indicating remote lower order pathbit errors.

Handling ProcedureHandle the LP_BBE performance event of the opposite station.

----End




A.2.67 LP_REI_VC12

Description

LP_REI_VC12 alarm is a VC-12 level path remote error indication. If a board detects that bit 3of the V5 byte is "1", this alarm is reported.

Attribute



Parameters


Name Meaning



Impact on System

This alarm does not affect the local station. It indicates that the receiving services of the oppositestation have bit errors.

Possible Causes

The local station detects an alarm from the opposite station, indicating remote lower order pathbit errors.

Handling Procedure

Handle the LP_BBE performance event of the opposite station.

----End

Related Information

None.

A.2.68 LP_REI_VC3


Maintenance Guide


DescriptionThe LP_REI_VC3 alarm is a VC-3 level path remote error indication. If a board detects that anybit of bits 1–4 of the G1 byte is 1, this board reports this alarm.

Attribute




Name Meaning



Impact on SystemBit errors exist in the service in the receive direction of the opposite NE.

Possible CausesThe local NE detects the return message from the opposite NE indicating that bit errors exist ina lower order path at the opposite NE.

Handling ProcedureHandle the VC3BBE performance event.

----End


A.2.69 LP_RFI

DescriptionThe LP_RFI alarm indicates "lower order path remote failure indication". When the board detectsbit 4 of the V5 byte is "1", this alarm is reported.



Attribute




Name Meaning



Impact on SystemThis alarm does not affect the local station. It indicates that the receiving services of the oppositestation have bit errors.

Possible CausesThe local station detects an alarm from the opposite station, indicating remote lower order pathfailure.

Handling ProcedureClear the alarm on the lower order path of the opposite station.

----End


A.2.70 LP_SIZE_ERR

DescriptionThe LP_SIZE_ERR alarm indicates "TU structure error".

Attribute


Minor Service alarm


Maintenance Guide


Parameters


Name Meaning



Impact on System

The services on the board are interrupted.

Possible Causesl The mapping structure configuration is incorrect.

l The tributary board is faulty.

Handling Procedure

Step 1 Check if the types of the add/drop services configured are consistent with the service types thatthe board supports.

If ... Then ...

The service types are inconsistent Modify the configuration data.

The service types are consistent Go to the next step.


----End

Related Information

None.

A.2.71 LP_SLM

Description

The LP_SLM alarm indicates "lower order path signal label mismatch". When the board detectsthe V5 byte signal label mismatch, this alarm is reported.



Attribute



Parameters


Name Meaning



Impact on System

The service in this lower order path is unavailable.

Possible Causes

The V5 byte signal label to be received by the local station mismatches that transmitted by theopposite station.

Handling Procedure

Modify the V5 byte signal label to be received of the local station or that transmitted by theopposite station to make the signal labels of the two stations identical.

----End

Related Information

None.

A.2.72 LP_SLM_VC12

Description

The LP_SLM_VC12 alarm indicates that the signal identifier of a VC-12 path mismatches. If aboard detects a V5 signal mismatch, this board reports the LP_SLM_VC12 alarm.


Maintenance Guide


Attribute



Parameters


Name Meaning



Impact on System


Possible Causes

The signal identifier in the V5 byte to be received at the local NE is different from that transmittedfrom the opposite NE.

Handling Procedure

Modify the signal identifier in V5 byte to be received at the local NE and that transmitted fromthe opposite NE to be the same.

----End

Related Information

None.

A.2.73 LP_SLM_VC3

Description

The LP_SLM_VC3 alarm indicates that the signal identifier of a VC-3 path mismatches. If aboard detects this mismatch, this board reports the LP_SLM_VC3 alarm.



Attribute



Parameters


Name Meaning



Impact on System


Possible Causes

The signal identifier in the C2 byte to be received at the local NE is different from that at theopposite NE.

Handling Procedure

Modify the signal identifier to be received at the local NE and that transmitted from the oppositeNE to be the same.

----End

Related Information

None.

A.2.74 LP_T_FIFO

Description

The LP_T_FIFO alarm indicates "FIFO overflow on the transmission side of the lower orderpath".


Maintenance Guide


Attribute




Name Meaning





l The frequency offset of the input signal is excessive.

Handling ProcedureStep 1 Test the frequency offset of the input signal.

If ... Then ...

The frequency offset is excessive Troubleshoot the opposite station equipment.

The frequency offset meets the requirement Go to the next step.


----End


A.2.75 LP_TIM

DescriptionThe LP_TIM alarm indicates "lower order path trace identifier mismatch". When the boarddetects the J2 byte mismatch, this alarm is reported.



Attribute




Name Meaning





the opposite station.l Data configuration at the intermediate nodes is incorrect.

Handling Procedure

Step 1 Set the J2 byte to be received of the local station to the disable mode. Alternatively, set the J1byte to be received at the local station to be the same as that transmitted from the opposite station.


----End


A.2.76 LP_TIM_VC12

DescriptionThe LP_TIM_VC12 alarm indicates that the VC-12 lower path trace identifier mismatches. Ifa board detects the mismatch of the J2 byte in a VC-12 path, this board reports theLP_TIM_VC12.


Maintenance Guide


Attribute



Parameters


Name Meaning



Impact on System

None.



Handling Procedure

Step 1 Set the J2 byte to be received at the local NE to disabled or to be the same as the J2 bytetransmitted from the opposite NE.


----End

Related Information

None.

A.2.77 LP_TIM_VC3

Description

The LP_TIM_VC3 alarm indicates that the VC-3 lower path trace identifier mismatches. If aboard detects the mismatch of the J1 byte in a VC-3 path, this board reports the LP_TIM_VC3.



Attribute



Parameters


Name Meaning



Impact on System

None.



Handling Procedure

Step 1 Set the J1 byte to be received at the local NE to disabled or to be the same as the J1 bytetransmitted from the opposite NE.


----End

Related Information

None.

A.2.78 LP_UNEQ

Description

The LP_UNEQ alarm indicates "lower order path unequipped". When the board detects the V5byte signal label is "0", this alarm is reported.


Maintenance Guide


Attribute



Parameters


Name Meaning



Impact on System

The service on this path is unavailable.

Possible Causes

The tributary path of the local station is configured with services, but that of the opposite stationis not.

Handling Procedure

Configure tributary services for the opposite station.

----End

Related Information

None.

A.2.79 LP_UNEQ_VC12

Description

The LP_UNEQ_VC12 alarm indicates that the VC-12 lower order path is unequipped. If a boarddetects that the signal identifier in the V5 byte is 0, this board reports the LP_UNEQ_VC12alarm.



Attribute




Name Meaning



Impact on SystemThe service on this path is unavailable. If the service is configured with a protection, a switchingis triggered.

Possible CausesData configuration errors are as follows:

l The tributary path at the local NE is configured with services while the correspondingtributary path at the opposite NE is not configured with services.

l The cross-connection configurations are incorrect at intermediate NEs.

Handling ProcedureStep 1 Check whether the corresponding tributary path is configured with services at the opposite NE.

If ... Then ...

Not Correctly configure the services.


Step 2 Check whether the cross-connection configurations at intermediate NEs are correct. If not,correct the configurations.

----End


A.2.80 LP_UNEQ_VC3


Maintenance Guide


Description

The LP_UNEQ_VC3 alarm indicates that the VC-3 lower order path is unequipped. If a boarddetects that the signal identifier in the C2 byte is 0, this board reports the LP_UNEQ_VC3 alarm.

Attribute



Parameters


Name Meaning



Impact on System

The service on this path is unavailable. If the service is configured with a protection, a switchingis triggered.

Possible Causes

Data configuration errors are as follows:

l The tributary path at the local NE is configured with services while the correspondingtributary path at the opposite NE is not configured with services.

l The cross-connection configurations are incorrect at intermediate NEs.

Handling Procedure

Step 1 Check whether the corresponding tributary path is configured with services at the opposite NE.

If ... Then ...

Not Correctly configure the services.


Step 2 Check whether the cross-connection configurations at intermediate NEs are correct. If not,correct the configurations.

----End




A.2.81 LSR_NO_FITED

DescriptionThe LSR_NO_FITED alarm indicates "laser not installed".

Attribute




Name Meaning


Impact on SystemThe optical interface cannot carry services.

Possible CausesThe laser of the local station is not installed.

Handling Procedure


Step 2 Find out why the laser is not installed and install it in a timely manner.

----End


A.2.82 LTI


Maintenance Guide


DescriptionThe LTI alarm indicates "loss of timing input". When all the synchronous sources are lost forthe NE, this alarm is reported.

Attribute




Name Meaning

Parameter 1 l "0x01" indicates all the synchronous sources of the system clock are lost.

l "0x02" indicates all the synchronous sources of the 2M phase-locked source.

Impact on SystemThe clock enters the free-run mode and cannot be synchronous with other NE clocks.

Possible Causesl The clock configuration is incorrect.

l The clock sources in the clock source priority table fail.

Handling Procedure

Step 1 Check if the data in the clock source priority table complies with the network planning.

If ... Then ...

The configurations are incorrect Modify the configurations.

The configurations are correct Go to the next step.

Step 2 Determine the synchronous source according to the clock source priority table.

If ... Then ...

The synchronous source is the external clock Check if the external clock source andexternal clock cable are faulty.

The synchronous source is the line clock Check if the line and line board are faulty.

The synchronous source is the IF clock Check if the microwave link, IF cable and IFboard are faulty.



If ... Then ...

The synchronous source is the tributaryclock

Check if the tributary clock source, relaycable and tributary board is faulty.

----End

Related Information

None.

A.2.83 MS_AIS

Description

The MS_AIS alarm indicates "multiplex section alarm indication". When the board detects bit6 to bit 8 of the K2 byte in three consecutive frames are "111", this alarm is reported.

Attribute



Parameters


Name Meaning



Impact on System

The services on the line port are interrupted. If the services are configured with protection, theprotection switching can be triggered.




Maintenance Guide


Handling Procedure


If ... Then ...






If ... Then ...






----End

Related Information

None.

A.2.84 MS_CROSSTR

Description

The MS_CROSSTR alarm indicates "multiplex section performance over threshold". When theboard detects the multiplex section bit error performance events over the preset threshold, thisalarm is reported.

Attribute


Minor Service alarm

Parameters




Name Meaning



Parameter 4–5 l The two most significant bits of the parameter 4 indicates the performancemonitoring period (01 means that the monitoring period is 15 minutes and02 means that the monitoring period is 24 hours).

l The parameter 5 and the six least significant bits of the parameter 4 togetherindicate the ID of a performance event.


Possible CausesThe multiplex section bit error performance events exceed the preset threshold.

Handling Procedure

Step 1 View the threshold crossing record of multiplex section bit error performance events todetermine the performance event that exceeds the preset threshold.


----End


A.2.85 MS_RDI

DescriptionThe MS_RDI alarm indicates "multiplex section remote defect indication". When the boarddetects bit 6 to bit 8 of the K2 byte are "110", this alarm is reported.

Attribute





Maintenance Guide



Name Meaning




Possible CausesThe local station detects an alarm from the opposite station, indicating remote multiplex sectionreceiving failure.

Handling Procedure

Step 1 Determine the line port that reports the alarm according to alarm parameters.

Step 2 Clear the alarm on the multiplex section of the opposite station.

----End


A.2.86 MS_REI

DescriptionThe MS_REI alarm indicates "multiplex section remote error indication". When the boarddetects the M1 byte is non-zero, this alarm is reported.

Attribute


Warning Service alarm




Name Meaning



Impact on System

The alarm does not affect the local station. It only indicates that the services received by theopposite station have bit errors.

Possible Causes

The local station detects an alarm from the opposite station, indicating remote multiplex sectionbit errors.

Handling Procedure


Step 2 Handle the MS_BBE performance event on the port.

----End

Related Information

None.

A.2.87 MSAD_CROSSTR

Description

The MSAD_CROSSTR alarm indicates "multiplex section adaptation performance overthreshold". When the board detects AU pointer adaptation performance events over the presetthreshold, this alarm is reported.

Attribute


Minor Service alarm

Parameters



Maintenance Guide


Name Meaning





Impact on SystemBit errors may occur to the services.

Possible Causesl AU pointer adaptation performance events exceed the preset threshold.

Handling Procedure

Step 1 View the threshold crossing record of AU pointer adaptation performance events to determinethe performance event that exceeds the preset threshold.


----End


A.2.88 MSSW_DIFFERENT

DescriptionThe MSSW_DIFFERENT alarm indicates "master and slave software different alarm". Whenthe SCC board detects the software set 1 and set 2 mismatch, this alarm is reported.

Attribute







Name Meaning

Parameter 1 Indicates the file location.l 0x01: Indicates the files in the flash.

l 0x02: Indicates the software that is currently running.

Parameter 2–3 Indicates the number of the inconsistent file on the SCC board.

Parameter 4–5 Indicates the alarm cause.l 0x04: Indicates that the file versions in the active and standby areas of an

SCC board are inconsistent.l 0x08: Indicates that the file versions on the active and standby SCC boards

are inconsistent, or that the files in the corresponding directories of theactive and standby SCC boards have different names.

l 0x0c: Indicates that the file versions in the active and standby areas of anSCC board are inconsistent and the file versions on the active and standbySCC boards are also inconsistent.

Impact on System

If the working software is lost, the backup software cannot take over.

l If the NE software versions on the active and standby SCC boards are inconsistent, theactive/standby switching will be affected.

l If no NE software exists in the flash, the system will be unable to restart after a power-offor reset.

Possible Causes

Software loading is abnormal.

Handling Procedure

Contact technical engineers of Huawei and re-load the software.

----End

Related Information

None.

A.2.89 MW_FECUNCOR

Description

The MW_FECUNCOR alarm indicates "microwave FEC uncorrectable".


Maintenance Guide


Attribute


Minor Service alarm

Parameters


Name Meaning

Parameter 1 Indicates the IF port that reports the alarm. For example, "0x01" indicates thealarm is reported by the first port of the board.

Impact on System

Bit errors occur to the services. If the system is configured with 1+1 FD/SD protection, thechannel protection switching can be triggered.

Possible Causesl The microwave link performance degrades.



Handling Procedure

Refer to section 2.3 Troubleshooting Microwave Links.

----End

Related Information

None.

A.2.90 MW_LIM

Description

The MW_LIM alarm indicates "microwave link identifier mismatch". When the board detectsthe LINK ID mismatch in microwave frame overheads, this alarm is reported.



Attribute




Name Meaning


Impact on SystemThe microwave link cannot carry services. If the services are configured with SNCP, theprotection switching can be triggered.

Possible Causesl The LINK ID to be received by the local station mismatches the LINK ID transmitted by

the opposite station.l The direction of the antenna is incorrectly configured. As a result, the antenna receives the

microwave from other stations.

Handling Procedure

Step 1 Determine the IF port that reports the alarm according to alarm parameters.

Step 2 Check if the LINK ID to be received by the local station mismatches the LINK ID transmittedby the opposite station.

If ... Then ...

The LINK ID to be received by the local stationmismatches the LINK ID transmitted by the oppositestation

Modify the data configuration.

The LINK ID to be received by the local station matchesthe LINK ID transmitted by the opposite station


Step 3 Adjust the direction of the antenna.

----End



Maintenance Guide


A.2.91 MW_LOF

DescriptionThe MW_LOF alarm indicates "loss of Reed Solomon (RS) frame".

Attribute




Name Meaning


Impact on SystemThe services are interrupted. If the system is configured with protection, the protection switchingcan be triggered.

Possible Causesl The microwave link performance degrades.



l The working modes of the IF units at the local and the opposite NEs are the same.

l The working modes of the ODUs at the local and the opposite NEs are the same.

Handling ProcedureRefer to section 2.3 Troubleshooting Microwave Links.

----End


A.2.92 MW_RDI



DescriptionThe MW_RDI alarm indicates "microwave link remote defect indication". When the IF boarddetects the RDI in microwave frame overheads, this alarm is reported.

Attribute




Name Meaning


Impact on SystemIf the local station is configured with reverse switching and both the active and standby boardsreceive the MW_RDI alarm at the same time, the 1+1 switching can be triggered. In addition,this alarm also indicates the receive services of the opposite station are interrupted.

Possible CausesAfter detecting a service alarm that is caused by a microwave link fault, the receive station returnsa microwave link fault indication to the transmit station.

Handling ProcedureClear the microwave alarm on the opposite station.

----End


A.2.93 NESF_LOST

DescriptionThe NESF_LOST alarm indicates "loss of NE software". When the SCC board detects that theNE software in the flash memory is lost, this alarm is reported.


Maintenance Guide


Attribute



Parameters


Name Meaning

Parameter 1 Indicates an inspection object.

l "0x01" indicates an ordinary file.

l "0x02" indicates the version of the running software.

l "0x03" indicates a special inspection object.

Parameter 2–3 Indicates the ID of the inspection object.

l "0x01", "0x03", and "0x05" respectively indicate the scc.fpga, nesoft.hwx,and ne.ini in the ofs1.

l "0x02", "0x04", and "0x06" respectively indicate the scc.fpga, nesoft.hwx,and ne.ini in the ofs2.

Parameter 4 Indicates the alarm cause.

l If the first bit is 1, it means that the file does not exist.

l If the second bit is 1, it means that verification of the file fails.

l If the third bit is 1, it means that the version of the file in the active area isdifferent from that of the file in the standby area.

l If the fourth bit is 2, it means that the version of the file in the active boardis different from that of the file in the standby board.

Impact on System

If the NE software does not exist in the working and the protection storage areas, an NE cannotbe restarted after it is powered off or reset.

Possible Causesl No NE software is loaded after already existing ones are erased.

l Loading the NE software is unsuccessful.

l The portable flash memory is not in position or is faulty.



Handling Procedure

Step 1 Check if the alarm is caused by the loading operation.

If ... Then ...

The alarm is caused by the loadingoperation

Contact technical engineers of Huawei and re-load the NE software.

The alarm is not caused by the loadingoperation


Step 2 Re-install or replace the portable flash memory.

----End

Related Information

None.

A.2.94 NESTATE_INSTALL

Description

The NESTATE_INSTALL alarm indicates "NE in install state".

Attribute



Parameters

None.

Impact on System

The NE fails to work.

Possible Causesl The configuration data check fails, which results in the NE in the installation state.

l The logical cross-connect board is not configured.

Handling Procedure

Step 1 The NE downloads the databases with correct configuration.

Step 2 Check whether the logical cross-connect board is configured in the slot layout figure on theNMS.


Maintenance Guide


If ... Then ...

Not Configure the cross-connect board in the slot layout.


----End

Related Information

None.

A.2.95 NO_BD_SOFT

Description

The NO_BD_SOFT alarm indicates "software file corrupted or missing".

Attribute



Parameters


Name Meaning


Parameter 2–3 Indicates the type of the lost software.l "0x01" indicates board software.

l "0x02" indicates the active FPGA.

l "0x03" indicates the standby FPGA.

Impact on Systeml If the board software is lost, the board fails to work normally.

l If the FPGA is lost, the FPGA has no backup.

Possible Causes

Software loading is abnormal.



Handling ProcedureContact technical engineers of Huawei and re-load the software.

----End


A.2.96 POWER_ALM

DescriptionThe POWER_ALM alarm indicates "power module alarm".

Attribute




Name Meaning

Parameter 1 Indicates the number of the power module that reports the alarm. For example,"0x01" indicates the alarm is reported by the first power module of the board.

Parameter 2 l "0x01" indicates under-voltage.

l "0x02" indicates over-voltage.

Impact on SystemPower modules are configured with protection. If only one power module reports thePOWER_ALM alarm, the system cannot be affected.

Possible Causesl The input power is abnormal.

l The power module is abnormal.

Handling Procedure

Step 1 Use a multimeter to test the power voltage supplied to the chassis.


Maintenance Guide


If ... Then ...

The voltage exceeds the range of -38.4 V to -72 V Clear the alarm.

The voltage is within the range of -38.4 V to -72 V Go to the next step.


----End

Related Information

l For the IDU 610, the power module on the PXC board and that on the SCC board areconfigured into the 1+1 standby protection group.

l For the IDU 620, the two power modules on the two PXC boards and that on the SCC boardare configured into the 2+1 standby protection group.

l For the IDU 620, the two power modules on the FAN board are configured into the 1+1standby protection group.

A.2.97 POWER_FAIL

Description

The POWER_FAIL alarm indicates "power failure". When the ODU detects the ODU powermodule failure, this alarm is reported.

Attribute



Parameters


Name Meaning

Parameter 1 Indicates the number of the power supply that reports the alarm. For example,"0x01" indicates the alarm is reported by the first group power supply of theboard.

Parameter 2 l "0x01" indicates the active power failure.

l "0x02" indicates the standby power failure.

Parameter 3 l "0x01" indicates over-voltage.

l "0x02" indicates under-voltage.



Impact on SystemThe ODU fails to work normally.

Possible CausesThe ODU is faulty.

Handling ProcedureReplace the ODU that reports the alarm.

----End


A.2.98 PS

DescriptionThe PS alarm indicates "protection switch indication".

Attribute




Name Meaning



Impact on SystemThe services are interrupted during the protection switching (<50 ms) and return to normal afterthe switching is complete.

Possible CausesProtection switching occurs to the services.


Maintenance Guide


Handling Procedure


----End

Related Information

None.

A.2.99 R_F_RST

Description

The R_F_RST alarm indicates "receiving FIFO reset".

Attribute



Parameters


Name Meaning



Impact on System



l The local station clock is asynchronous with the opposite station clock.

Handling Procedure

Step 1 Query if there are TU pointer adjustment performance events at the local station or the oppositestation.



If ... Then ...

There are TU pointer adjustment performance events atthe local station or the opposite station

Handle the performance events.

There are no TU pointer adjustment performance eventsat the local station or the opposite station



----End


A.2.100 R_LOC

DescriptionThe R_LOC alarm indicates "receive loss of clock". When the line board cannot extract the clockfrom the line signal, this alarm is reported.

Attribute




Name Meaning



Impact on SystemIf the system is configured with protection, the protection switching can be triggered.




Maintenance Guide


Handling Procedure



If ... Then ...






If ... Then ...






----End

Related Information

None.

A.2.101 R_LOF

Description

The R_LOF alarm indicates "receive loss of frame". When the OOF state lasts for 3 ms, thisalarm is reported.

Attribute



Parameters




Name Meaning



Impact on SystemThe services are interrupted. If the system is configured with protection, the protection switchingcan be triggered.



l The line performance degrades.

Handling Procedure


Step 2 If this alarm is reported by the IF board, check if there is the MW_FECUNCOR alarm.

If ... Then ...

There is the MW_FECUNCOR alarm Clear the MW_FECUNCOR alarm first.

There is no MW_FECUNCOR alarm Go to Step 4.

Step 3 If this alarm is reported by the optical interface board or STM-1 electrical interface board,exchange the receive/transmit fiber jumpers or cables at the receive and the transmit ends.

If ... Then ...

The alarm still persists after the operation Go to the next step.

The line port of the opposite station reports the R_LOFalarm

Clear the fault in fibers/cables.


If ... Then ...






If ... Then ...




Maintenance Guide


If ... Then ...




----End

Related Information

None.

A.2.102 R_LOS

Description

The R_LOS alarm indicates "receive loss of signal".

Attribute



Parameters


Name Meaning



Impact on System

The services are interrupted. If the system is configured with protection, the protection switchingcan be triggered.



l The line performance degrades.



Handling Procedure


Step 2 If this alarm is reported by the IF board, check if the data configuration at the receive and thetransmit ends is consistent.

If ... Then ...

The data configuration is inconsistent Modify the data configuration.

The data configuration is consistent Go to the next step.

Step 3 If this alarm is reported by the IF board, check if there is the MW_FECUNCOR alarm.

If ... Then ...

There is the MW_FECUNCOR alarm Clear the MW_FECUNCOR alarm first.

There is no MW_FECUNCOR alarm Go to Step 5.

Step 4 If this alarm is reported by the optical interface board or STM-1 electrical interface board,exchange the receive/transmit fiber jumpers or cables at the receive and the transmit ends.

If ... Then ...

The alarm still persists after the operation Go to the next step.

The line port of the opposite station reports the R_LOSalarm

Clear the fault in fibers/cables.

NOTE

This method only applies to the situation where only one end reports the alarm. If both ends reports thealarm, check if the transmission distance is too long or the cables are broken.


If ... Then ...






If ... Then ...






----End


Maintenance Guide


Related Information

None.

A.2.103 R_S_ERR

Description

The R_S_ERR alarm indicates "received signal error".

Attribute



Parameters


Name Meaning



Impact on System




Handling Procedure

Step 1 Check if the tributary board supports the type of the input signal.

If ... Then ...

The tributary board does not support thetype of the input signal

Modify the type of the output signal of theopposite station.

The tributary board supports the type of theinput signal




Step 2 Test the frequency offset of the input signal.

If ... Then ...

The frequency offset of the input signal isexcessive

Troubleshoot the opposite station equipment.

The frequency offset of the input signalmeets the requirement



----End


A.2.104 RADIO_MUTE

DescriptionThe RADIO_MUTE alarm indicates "radio transmission mute".

Attribute


Warning Equipment alarm


Name Meaning

Parameter 1 Indicates the RF port that reports the alarm.

Impact on SystemThe transmitter does not launch services.

Possible Causesl The transmitter of the local station is muted.

l The data configuration of the ODU is incorrect.

l The IF board is faulty, causing abnormal IF output.


Maintenance Guide


Handling Procedure

Step 1 Check if the transmitter of the ODU that reports the alarm is muted.

If ... Then ...

The transmitter is muted Cancel the muting operation.

The transmitter is not muted Go to the next step.

Step 2 Check if there is the CONFIG_NOSUPPORT alarm.

If ... Then ...

There is the CONFIG_NOSUPPORTalarm

Clear the CONFIG_NOSUPPORT alarmfirst.

There is no CONFIG_NOSUPPORT alarm Go to the next step.

Step 3 Replace the IF board.

----End

Related Information

None.

A.2.105 RADIO_RSL_HIGH

Description

The RADIO_RSL_HIGH alarm indicates "radio receive signal level too high". When the receivepower is detected higher than the upper threshold of the ODU receive power (-20 dBm), thisalarm is reported.

Attribute


Critical Service alarm

Parameters


Name Meaning




Impact on System

The service transmission is affected. If the system is configured with 1+1 protection, theprotection switching can be triggered.

Possible Causesl The ODU is faulty.

l There is a strong interference source nearby.

Handling Procedure

Step 1 Replace the ODU.

If ... Then ...

The alarm disappears after the ODU isreplaced


The alarm persists after the ODU isreplaced


Step 2 Remove the nearby strong interference source.

----End

Related Information

None.

A.2.106 RADIO_RSL_LOW

Description

The RADIO_RSL_LOW alarm indicates "radio receive signal level too low". When the receivepower is detected below the lower threshold of the ODU receive power (-90 dBm), this alarmis reported.

Attribute



Parameters



Maintenance Guide


Name Meaning


Impact on System

If there is neither the MW_LOF nor MW_FECUNCOR alarm, the services cannot be affected.

Possible Causesl The microwave link signal is too much attenuated.

l The transmit power of the opposite station is too low.

l The ODU of the local station is faulty.

Handling Procedure

Step 1 Check if the alarm persists.

If ... Then ...

The alarm sometimes occurs Contact the network planning department to change the designto increase the anti-fading performance.

The alarm persists Go to the next step.

Step 2 Check if the transmit power of the opposite station is normal.

If ... Then ...

The transmit power is abnormal Go to the next step.

The transmit power is normal Replace the ODU of the opposite station.

Step 3 Check if the antenna is properly adjusted.

If ... Then ...

The antenna is not properly adjusted Adjust the antenna again.

The antenna is properly adjusted Go to the next step.

Step 4 Check if the polarization direction of the antenna is correctly set.

If ... Then ...

The polarization direction is wrongly set Correct the polarization direction.

The polarization direction is correctly set Go to the next step.

Step 5 Check if the antenna gain at both the transmit and receive sides meets the indexes.

If ... Then ...

The gain does not meet the indexes Replace the antenna.

The gain meets the indexes Go to the next step.



Step 6 Check if there is a mountain or building in the transmit direction.

If ... Then ...

There is a mountain or building in thetransmit direction

Contact the network planning department tochange the design to avoid the mountain orbuilding.

There is no mountain or building in thetransmit direction


Step 7 Replace the ODU of the local station.

----End


A.2.107 RADIO_TSL_HIGH

DescriptionThe RADIO_TSL_HIGH alarm indicates "radio transmission signal level too high". When thetransmit power is detected higher than the upper power threshold of the ODU, this alarm isreported.

Attribute




Name Meaning


Impact on SystemThe service transmission is affected. If the system is configured with 1+1 protection, theprotection switching can be triggered.



Maintenance Guide


Handling ProcedureReplace the ODU.

----End


A.2.108 RADIO_TSL_LOW

DescriptionThe RADIO_TSL_LOW alarm indicates "radio transmission signal level too low". When thereceive power is detected below the lower power threshold of the ODU, this alarm is reported.

Attribute




Name Meaning


Impact on SystemThe service transmission is affected. If the system is configured with 1+1 protection, theprotection switching can be triggered.


Handling ProcedureReplace the ODU.

----End




A.2.109 RELAY_ALARM

DescriptionThe RELAY_ALARM alarm indicates "relay alarm".

Attribute


Critical Environment alarm


Name Meaning

Parameter 1 Indicates the number of the input alarm. For example, "0x01" indicates thereported external alarm is the first input alarm.


Possible CausesThe input alarm signal reports the alarm.

Handling Procedure

Step 1 Determine the number of the input alarm according to alarm parameters.

Step 2 Clear the fault according to the meaning of the input alarm.

----End


A.2.110 RP_LOC

DescriptionThe RP_LOC alarm indicates "loss of receiving phaselock ring clock".


Maintenance Guide


Attribute




Name Meaning



Impact on SystemThe services on the board are interrupted.

Possible CausesThe board is faulty.

Handling ProcedureReplace the board that reports the alarm.

----End


A.2.111 RS_CROSSTR

DescriptionThe RS_CROSSTR alarm indicates "regenerator section performance over threshold". Whenthe board detects the regenerator section performance events over the preset threshold, this alarmis reported.

Attribute


Minor Service alarm




Name Meaning






Possible CausesThe regenerator section performance events exceed the preset threshold.

Handling Procedure

Step 1 View the threshold crossing record of regenerator section performance events to determine theperformance event that exceeds the preset threshold.


----End


A.2.112 S1_SYN_CHANGE

DescriptionThe S1_SYN_CHANGE alarm indicates "reference source change in S1_Mode".


Maintenance Guide


Attribute



Parameters


Name Meaning

Parameter 1 l "0x01" indicates switching of the system clock.

l "0x02" indicates switching of 2M phase-locked source.

Impact on System

This alarm has no impact on the system.

Possible Causes

In the S1 byte mode, switching occurs to the clock source.

Handling Procedure


----End

Related Information

None.

A.2.113 SYN_BAD

Description

The SYN_BAD alarm indicates "synchronous source degraded".

Attribute





Parameters

None.

Impact on System

The NE clock is unlocked.

Possible Causesl The synchronous source degraded.

l The cross-connect unit is faulty.

Handling Procedure

Step 1 If the traced synchronous source is the external clock, check if the type of the external clockconfiguration is correct.

If ... Then ...

The configuration is incorrect Modify the data configuration.

The configuration is correct Go to the next step.

Step 2 If the traced synchronous source is the external clock, check if the opposite clock source deviceis faulty.

If ... Then ...



Step 3 If the traced synchronous source is the external clock, check if the external clock cable is normal.

If ... Then ...

The cables are abnormal Replace the cables.

The cables are normal Perform step 5.

Step 4 If the traced synchronous source is the line clock, replace the cross-connect and timing board ofthe upstream NE.


----End

Related Information

None.

A.2.114 SYNC_C_LOS


Maintenance Guide


DescriptionThe SYNC_C_LOS alarm indicates "synchronous source level loss".

Attribute


Warning Equipment alarm


Name Meaning

Parameter Every two parameters indicates one lost clock source.l If the line clock source is lost, the first parameter indicates the slot number of

the clock source, and the second parameter indicates the port number of theclock source.

l If the external clock source is lost, 0xf0, "1" indicates the external clock 1, 0xf0,"2" indicates the external clock 2.

Impact on SystemThe NE clock degrades or enters the free-run mode.

Possible CausesThe clock source is lost.

Handling ProcedureStep 1 Determine the lost clock source according to alarm parameters.

Step 2 Find out why the clock source is lost and clear the fault.

----End


A.2.115 T_ALOS

DescriptionThe T_ALOS alarm indicates "E1 interface loss of analog signal".



Attribute



Parameters


Name Meaning



Impact on System


Possible Causesl The port does not access the 2 Mbit/s service.

l The opposite equipment is faulty.

l The trunk cable is faulty.

l The board that reports the alarm is faulty.

Handling Procedure

Step 1 Check if the port that reports the alarm accesses the 2 Mbit/s service.

If ... Then ...

The port does not access the 2 Mbit/sservice

Access the service to the port or delete theunwanted service configuration.

The port accesses the 2 Mbit/s service Go to the next step.


If ... Then ...



Step 3 Check if the trunk cable is faulty.


Maintenance Guide


If ... Then ...




----End

Related Information

None.

A.2.116 T_F_RST

Description

The T_F_RST alarm indicates "transmission FIFO reset".

Attribute



Parameters


Name Meaning



Impact on System

The services on the PDH channel are interrupted.





Handling Procedure


If ... Then ...




----End


A.2.117 T_FIFO_E

DescriptionThe T_FIFO_E alarm indicates "transmission FIFO overflow".

Attribute




Name Meaning







Maintenance Guide


Handling Procedure


If ... Then ...




----End

Related Information

None.

A.2.118 T_LOC

Description

The T_LOC alarm indicates "transmit loss of clock".

Attribute



Parameters


Name Meaning



Impact on System

The services on the AU-4 path are interrupted.



Possible Causes

l The cross-connect and timing board is faulty.

l The line board is faulty.

Handling Procedure


Step 2 Replace the cross-connect and timing board.

If ... Then ...






----End

Related Information

None.

A.2.119 T_LOS

Description

The T_LOS alarm indicates "transmit loss of signal".

Attribute



Parameters


Name Meaning



Maintenance Guide


Name Meaning


Impact on System

The services on the AU-4 path are interrupted.

Possible Causesl The SDH service configuration mismatches the type of the line board.


l The line board is faulty.

Handling Procedure

Step 1 Check the SDH service configuration.

If ... Then ...

The SDH service configurationmismatches the type of the line board


The SDH service configuration is correct Go to the next step.


If ... Then ...






----End

Related Information

None.

A.2.120 TEMP_ALARM

Description

The TEMP_ALARM alarm indicates "temperature over threshold".



Attribute


Minor Environment alarm

Parameters


Name Meaning

Parameter 1 l "0x01" indicates temperature over the upper threshold.

l "0x02" indicates temperature below the lower threshold.

Impact on System

The board cannot work normally.

Possible Causes

The board temperature exceeds the threshold.

l The board temperature exceeds the threshold.

l The temperature detecting circuit is faulty.

Handling Procedure

Step 1 If the alarm is reported by the ODU, install a sunshade to control the temperature.

Step 2 If the alarm is reported by a board of the IDU, check if the temperature control devices, such asair-conditioners, operate normally.

If ... Then ...

The temperature control devices operateabnormally

Adjust the temperature control devices.

The temperature control devices operatenormally


Step 3 If the alarm is reported by a board of the IDU and the IDU has air filters, clean the air filters.

Step 4 If the ambient temperature is normal and there is no heat-sinking problem, replace the board thatreports the alarm.

----End


Maintenance Guide



A.2.121 TU_AIS

DescriptionThe TU_AIS alarm indicates "TU alarm indication". When the board detects the TU path withall "1" signals, this alarm is reported.

Attribute




Name Meaning



Impact on SystemThe services on the TU path are interrupted. If the services are configured with protection, theprotection switching can be triggered.

Possible Causesl The data configuration is wrong.

l The line is faulty.



Handling Procedure

Step 1 Check if the SDH service data and the network protection data are correct.

If ... Then ...

The data are incorrect Modify the data configuration.



If ... Then ...

The data are correct Go to the next step.

Step 2 Check if there are line alarms on the service route.

If ... Then ...

There are line alarms Modify the data configuration.

There are no line alarms Go to the next step.

Step 3 Locate the faulty station using the loopback method.

If ... Then ...

The fault lies in a remote station Locate the faulty board by replacing boards.

The fault lies in the local station Go to the next step.

Step 4 Replace the line board of the local station.

If ... Then ...






If ... Then ...






----End

Related Information

None.

A.2.122 TU_AIS_VC12

Description

The TU_AIS_VC12 is an indication alarm of a VC-12 TU alarm. If a board detects that the TUpointer is 1, this board reports the TU_AIS_VC12 alarm.


Maintenance Guide


Attribute



Parameters


Name Meaning

Parameter 1 The value is always 1.


Impact on System

The services on this VC-12 TU path are interrupted. If the services are configured with aprotection, a switching is triggered.

Possible Causesl The data configuration is incorrect.



l A tributary board is faulty.

Handling Procedure

Step 1 Check whether the SDH service data and the network protection data are correct.

If ... Then ...



Step 2 Check whether any line alarm exists in the service trail.

If ... Then ...



Step 3 Perform a loopback to locate the faulty point.



If ... Then ...

The fault exists on another NE Replace boards to locate the faulty board.

The fault exists on the local NE Go to the next step.

Step 4 Replace the line board at the local NE.

If ... Then ...

The TU_AIS_VC12 alarm clears after theboard is replaced

The fault is removed. End the alarmhandling.

The TU_AIS_VC12 alarm persists after theboard is replaced


Step 5 Replace the cross-connect and timing board at the local NE.

If ... Then ...

The TU_AIS_VC12 alarm clears after theboard is replaced




Step 6 Replace the board that reports the TU_AIS_VC12 alarm.

----End


A.2.123 TU_AIS_VC3

DescriptionThe TU_AIS_VC3 is an indication alarm of VC-3 TU alarm. If a board detects that the TUpointer is 1, this board reports the TU_AIS_VC3 alarm.

Attribute





Maintenance Guide


Name Meaning



Impact on SystemThe services on this VC-3 TU path are interrupted. If the services are configured with aprotection, a switching is triggered.

Possible Causesl The data configuration is incorrect.




Handling Procedure

Step 1 Check whether the SDH service data and the network protection data are correct.

If ... Then ...



Step 2 Check whether any line alarm exists in the service trail.

If ... Then ...



Step 3 Perform a loopback to locate the faulty point.

If ... Then ...

The fault exists on another NE Replace boards to locate the faulty board.

The fault exists on the local NE Go to the next step.

Step 4 Replace the line board at the local NE.

If ... Then ...

The TU_AIS_VC3 alarm is cleared after theboard is replaced







If ... Then ...

The TU_AIS_VC3 alarm is cleared after theboard is replaced




Step 6 Replace the board that reports the TU_AIS_VC3 alarm.

----End


A.2.124 TU_LOP

DescriptionThe TU_LOP alarm indicates "TU loss of pointer". When the board detects the TU-PTR valueof eight consecutive frames is invalid or is NDF revertive, this alarm is reported.

Attribute




Name Meaning



Impact on SystemThe services on the TU channel are interrupted. If the services are configured with protection,the protection switching can be triggered.

Possible Causesl The cross-connect and timing board is faulty.


Maintenance Guide



Handling Procedure


If ... Then ...






----End

Related Information

None.

A.2.125 TU_LOP_VC12

Description

The TU_LOP alarm indicates that the VC-12 TU pointer is lost. If a board detects that the VC-12TU-PTR value of eight consecutive frames is invalid or is NDF revertive, this board reports theTU_LOP_VC12 alarm.

Attribute



Parameters


Name Meaning

Parameter 1 The value is always 1.




Impact on System

The services in the TU path are interrupted. If the services are configured with a protection, aswitching is triggered.

Possible Causesl The cross-connect and timing board is faulty.


Handling Procedure


If ... Then ...

The TU_LOP_VC12 alarm is cleared after theboard is replaced


The TU_LOP_VC12 alarm persists after theboard is replaced


Step 2 Replace the board that reports the TU_LOP_VC12 alarm.

----End

Related Information

None.

A.2.126 TU_LOP_VC3

Description

The TU_LOP alarm indicates that the VC-3 TU pointer is lost. If a board detects that the TU-PTR value of eight consecutive frames is invalid or is NDF revertive, this board reports theTU_LOP_VC3 alarm.

Attribute



Parameters



Maintenance Guide


Name Meaning



Impact on SystemThe services in the TU path are interrupted. If the services are configured with a protection, aswitching is triggered.

Possible Causesl The cross-connect and timing board is faulty.l A tributary board is faulty.

Handling ProcedureStep 1 Replace the cross-connect and timing board at the local NE.

If ... Then ...

The TU_LOP_VC3 alarm is cleared after theboard is replaced


The TU_LOP_VC3 alarm persists after theboard is replaced


Step 2 Replace the board that reports the TU_LOP_VC3 alarm.

----End


A.2.127 UP_E1_AIS

DescriptionThe UP_E1_AIS alarm indicates "2M up signal alarm indication". When the tributary boarddetects the up E1 signal is all "1"s, this alarm is reported.

Attribute







Name Meaning



Impact on System

The E1 signals are unavailable.

Possible Causesl The opposite equipment sends the E1_AIS signal.


Handling Procedure

Step 1 Check if the opposite equipment sends the E1_AIS signal.

If ... Then ...

The opposite equipment sends the E1_AIS signal Troubleshoot the opposite equipment.

The opposite equipment does not send the E1_AISsignal



----End

Related Information

None.

A.2.128 VCAT_LOA

Description

The VCAT_LOA alarm indicates that the delay of the virtual concatenation is overly long. Whena board detects that the delay time of the timeslots bound to a VCTRUNK exceeds the timeallowed by the virtual concatenation delay, this board reports the VCAT_LOA alarm.

Attribute




Maintenance Guide


Parameters


Name Meaning



Impact on System

The virtually concatenated services are interrupted.

Possible Causes

The differences between each VC link are too large.

Handling Procedure

Step 1 Check whether the transmission routes for the paths that are bound to this VCTRUNK are thesame.

If ... Then ...

The paths have different transmission routes. Adjust the routes to be the same.

The paths have the same transmission route with eachother


Step 2 Check whether any bit errors or line alarm exists. If yes, handle the alarms.

----End

Related Information

None.

A.2.129 VCAT_LOM_VC12

Description

The VCAT_LOM_VC12 is an alarm indicating the loss of the virtual concatenation multiframein the VC-12 path. When a board detects that the K4 byte of the VC-12 timeslot mismatcheswith the expected multiframe sequence, this board reports the VCAT_LOM_VC12 alarm.



Attribute



Parameters


Name Meaning



Impact on System

This path is unavailable. If the LCAS function is disabled, the services are interrupted.

Possible Causesl The link configuration is incorrect.

l The virtual concatenation delay time varies with each path.

l Bit errors exist in the line.

Handling Procedure

Step 1 Check whether the VCTRUNKs at both ends of this path are bound with the same timeslot.

If ... Then ...




If ... Then ...

Not Adjust the routes to be the same.



----End


Maintenance Guide


Related Information

None.

A.2.130 VCAT_LOM_VC3

Description

The VCAT_LOM_VC3 is an alarm indicating the loss of the virtual concatenation multiframein the VC-3 path. When a board detects that the H4 byte of the VC-3 timeslot mismatches withthe expected multiframe sequence, this board reports the VCAT_LOM_VC3 alarm.

Attribute



Parameters


Name Meaning



Impact on System

This path is unavailable. If the LCAS function is disabled, the services are interrupted.

Possible Causesl The link configuration is incorrect.

l The virtual concatenation delay is overly long.

Handling Procedure

Step 1 Check whether the VCTRUNKs at both ends of this path are bound with the same timeslot.

If ... Then ...






If ... Then ...

Not Adjust the routes to be the same.



----End


A.2.131 VCAT_SQM_VC12

DescriptionThe VCAT_SQM_VC12 alarm indicates the sequence (SQ) mismatch of the virtualconcatenation in the VC-12 path. When a board detects that the SQ number of the virtualconcatenation mismatches, this board reports the VCAT_SQM_VC12 alarm.

Attribute




Name Meaning



Impact on SystemThis path is unavailable. If the LCAS function is disabled, the services are interrupted.

Possible Causesl Errors exist on a link or the link is faulty.


Maintenance Guide


l The SQ number sent from the opposite NE is wrong.

Handling Procedure

Step 1 Check whether bit errors or a line alarm exists.

If ... Then ...

Bit errors or a line alarm exists Handle the relevant alarms.

No bit errors or line alarm exists Go to the next step.

Step 2 Replace the board on which the VCAT_SQM_VC12 alarm occurs.

If ... Then ...

The VCAT_SQM_VC12 alarm clears after the board is replaced End the alarm handling.

The VCAT_SQM_VC12 alarm persists after the board isreplaced


Step 3 Replace the corresponding board at the opposite NE.

If ... Then ...

The VCAT_SQM_VC12 alarm clears after the board isreplaced

End the alarm handling.


Contact Huawei engineers.

----End


A.2.132 VCAT_SQM_VC3

DescriptionThe VCAT_SQM_VC3 alarm indicates the sequence (SQ) mismatch of the virtual concatenationin the VC-3 path. When a board detects that the SQ number of the virtual concatenationmismatches, this board reports the VCAT_SQM_VC3 alarm.

Attribute







Name Meaning



Impact on SystemThis path is unavailable. If the LCAS function is disabled, the services are interrupted.

Possible Causesl Bit errors exist on a link or the link is faulty.

l The SQ number sent from the opposite NE is wrong.

Handling Procedure

Step 1 Check whether bit errors or a line alarm exists.

If ... Then ...

Bit errors or a line alarm exists Handle the relevant alarms.

No bit errors or line alarm exists Go to the next step.

Step 2 Replace the board on which the VCAT_SQM_VC3 alarm occurs.

If ... Then ...

The VCAT_SQM_VC3 alarm clears after the board is replaced End the alarm handling.

The VCAT_SQM_VC3 persists after the board is replaced Go to the next step.

Step 3 Replace the corresponding board at the opposite NE.

If ... Then ...


End the alarm handling.

The VCAT_SQM_VC3 alarm persists after the board isreplaced

Contact Huawei engineers.

----End


A.2.133 VOLT_LOS


Maintenance Guide


Description

The VOLT_LOS alarm indicates "loss of voltage".

Attribute



Parameters


Name Meaning

Parameter 1 Indicates the type of the power that reports the alarm.l "0x01" indicates -48 V/+24 V output alarm.

l "0x02" indicates -48 V/+24 V input alarm.

l "0x03" indicates +5 V output alarm.

l "0x04" indicates +3.3 V output alarm.

l "0x05" indicates the lightning alarm.

Impact on System

As the PXC power is faulty, the system cannot work.

Possible Causesl The input power is abnormal.

l The power module is normal.

l The power switch is not turned on.

Handling Procedure

Step 1 Start different alarm clearing procedures according to the type of the board that reports the alarm.

If ... Then ...

The board is an IF board Carry out Step 2.

The board is a PXC board Carry out Step 3 to Step 5.

Step 2 Check the power switch of the ODU.



If ... Then ...

The power switch is turned on Replace the IF board.

The power switch is not turned on Turn on the power switch.

Step 3 Clear the alarm according to the type of the power supply that reports the alarm.

If ... Then ...

The alarm is reported by the input power Go to the next step.

The alarm is reported by the output power Replace the board that reports the alarm.

The alarm is a lightning alarm Check the grounding system.

Step 4 Clear the alarm reported by the input power.

If ... Then ...

It is normal that there is no input power Shield the alarm for the board.

It is abnormal that there is no input power Go to the next step.

Step 5 Check the power switch.

If ... Then ...

The power switch is turned on Contact power engineers to handle the fault of the inputpower.

The power switch is not turned on Turn on the power switch.

----End


A.2.134 WRG_BD_TYPE

DescriptionThe WRG_BD_TYPE alarm indicates "wrong board type".

Attribute





Maintenance Guide



Name Meaning

Parameter 1 Indicates the slot where the board whose type is wrong is seated.

Impact on System

The board is unavailable.

Possible Causesl The data configuration is wrong.

l The type of the board installed is incorrect.

Handling Procedure

Step 1 Check if the board type configured complies with the planning.

If ... Then ...

The board type configured does not comply with theplanning

Modify the data configuration.

The board type configured complies with the planning Go to the next step.

Step 2 Replace the board.

----End

Related Information

None.

A.2.135 WRG_DEV_TYPE

Description

The WRG_DEV_TYPE alarm indicates "wrong device type".

Attribute



Parameters

None.



Impact on SystemThe equipment is unavailable.

Possible CausesThe data configuration is incorrect.

Handling ProcedureModify the type of the equipment to be consistent with the equipment.

----End


A.2.136 WS_LOS

DescriptionThe WS_LOS alarm indicates "wayside interface loss of signal".

Attribute




Name Meaning

Parameter 1 Indicates the wayside service where the alarm occurs.

Impact on SystemThe wayside services are interrupted.

Possible Causesl Wayside service data has been configured, but the services are not accessed.

l The opposite equipment is faulty.

l The wayside cables are faulty.


Maintenance Guide


l The PXC board is faulty.

Handling ProcedureStep 1 Check if wayside service data is configured but the services are not accessed.

If ... Then ...

Wayside service data is configured but theservices are not accessed

Access the services and delete unnecessarywayside service data.

There is no above situation Go to the next step.

Step 2 Check if the opposite wayside service equipment is faulty.

If ... Then ...



Step 3 Check if the wayside service cable is faulty.

If ... Then ...




----End


A.2.137 XCP_INDI

DescriptionThe XCP_INDI alarm indicates "XCS protection switching indication".

Attribute






Name Meaning


Impact on SystemDuring the protection switching (< 50 ms), VC-3/VC-12 services are interrupted.

Possible CausesProtection switching occurs to the PXC board.

Handling ProcedureDetermine the cause for switching and perform relevant operations.

----End



Maintenance Guide


02-a alarm reference

Documents