ALM-5022 Optical Channel B Remote Alarm

Description

The optical module of the DOMU at the peer end does not receive correct optical signals, and the BTS transmission is interrupted temporarily or permanently. This alarm is reported.

Attribute

Alarm ID	Alarm Severity	Alarm Type
5022	Major	Fault

Parameters

ID	Name	Meaning
1	Site No.	Number of the site where the faulty board or module is located Value range: 0-2047
2	Board Type	Number of the type which the faulty board belongs to. 64:DOMU
3	Board No.	Number of the fault board 0-7:DOMU
4	PassNo	Number of the passage where the faulty board is located.
5	SubLink No.	Alarm sub-category number 255: None
6	Cell Index	Index of the cell where the board or module is located 0-2047: Cell index of the faulty cell in the data configuration 65535: None
7	Site Type	Type of the site where the faulty board is located. 13:BTS3006C; 14:BTS3002E;
8	RackNo	Number of the rack where the faulty board is located.
9	BoxNo	Number of the subrack where the faulty board is located.
10	SlotNo	Number of the slot where the faulty board is located.
11	Site Name	Site Name
12	Alarm Attribute	Alarm Character 0:Normal 1:Transient Count

Impact on the System

The services are interrupted and restored automatically, or the services are interrupted without restoration.

System Actions

None.

Possible Causes

The optical module of the DOMU at the peer end does not receive correct optical signals or the received optical signals are of bad quality.

Procedure

Clear the local alarm if there is any.
Perform a loopback test on the input optical fiber and the output optical fiber of the optical module A, Check weather the SFP-A of the DMCM is off.
Y=> Go to Step 3.

N=> Go to Step 4.
Replace the output optical fiber of the optical module B. Check whether the alarm is cleared.
Y=> The alarm is cleared. Alarm handling is completed.

N=> The reception of signals at the peer end is abnormal. Check the equipment at the peer end.
Replace the optical module B of the DMCM. Check whether the alarm is cleared.
Y=> The alarm is cleared. Alarm handling is completed.

N=> The alarm is not cleared.Go to Step 5.
Replace the DMCM and check whether the alarm is cleared.
Y=> The alarm is cleared. Alarm handling is completed.

N=> The alarm is not cleared. Please contact Huawei Customer Service Center.