ALM-5756 PSU Module Protector Alarm

Description

This alarm is reported when the PSU is protected.

Attribute

Alarm ID Alarm Severity Alarm Type
5756 Minor 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.

133:APM/APMU
3 Board No.

Number of the fault board

Value range:0-8:APMU
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;

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 BTS mains supply may be abnormal, which causes the interruption of services.

System Actions

None.

Possible Causes

This alarm is generated when the PSU is protected.

Procedure

  1. Check for the over voltage or under voltage alarms of the –48 V DC power.
    1. Check whether the –48V abnormal voltage alarms exist:

      Y => The precedent alarms exist. Go to step b.

      N => The precedent alarms do not exist. Go to procedure 2.

    2. Handle the –48 V abnormal voltage alarms.
    3. Check whether the alarm is cleared:

      Y => The alarm is cleared. The alarm handling ends.

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

  2. Replace the faulty PSU.
    1. Replace the faulty PSU.
    2. Check whether the alarm is cleared:

      Y => The alarm is cleared. The alarm handling ends.

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

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