ALM-4772 Main Control Module Clock Critical Alarm

Description

DTMU 13M clock fails.

Attribute

Alarm ID Alarm Severity Alarm Type
4772 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:DTMU/DOMU

87:GTMU
3 Board No.

Number of the fault board

0-7:DTMU/DOMU/GTMU
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.

12:BTS3012;

13:BTS3006C;

14:BTS3002E;

15:BTS3012AE;

16:BTS3012 II;

17:DBS3900 GSM;

18:BTS3900 GSM;

19:BTS3900A GSM;
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 master clock module is abnormal.

System Actions

None.

Possible Causes

The 13M crystal oscillator of the master clock module or the testing module is faulty.

Procedure

  1. Reset the DTMU

    Reset the DTMU and check if the alarm has been cleared.

    Y=> The alarm is cleared. Alarm handling is completed.

    N=> The alarm is not cleared. Go to Step 2.

  2. Replace the DTMU

    Replace the DTMU and check if the alarm has been cleared.

    Y=> The alarm is cleared. Alarm handling is completed.

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

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