ALM-4002 PSU Communication Failure Alarm

Description

This alarm is reported when the communication between the PSU and the PMU is interrupted, or the out-position of the PSU is detected by the PSU.

Attribute

Alarm ID Alarm Severity Alarm Type
4002 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.

132:APSU
3 Board No.

Number of the fault board

0-3:APSU
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 or module is located

9: BTS3002C
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 power supply of the BTS is abnormal and the services are interrupted.

System Actions

None.

Possible Causes

  • The communication between the PSU and the PMU is interrupted.
  • The PMU detects the out-position of the PSU.
  • The PSU is faulty.

Procedure

  1. Check if the PSU and the PMU are inserted tight.

    Y=>Go to Step 2.

    N=>Go to Step 3.

  2. Plug out and then insert the boards and see if the alarm is cleared.

    Y=>Alarm handling is completed.

    N=>The alarm is not cleared. Go to step 3.

  3. Replace the PMU

    Replace the PMU and see if 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.

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