ALM-4006 PSU Module Protector Alarm

Description

This alarm is reported when the PSU is protected.

Alarm ID	Alarm Severity	Alarm Type
4006	Major	Fault

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. 83: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

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

None.

This alarm is generated when the PSU is protected.

Check if there are over voltage or under voltage alarms.
1. Check if there are the DC -48 V voltage abnormal voltage alarms.
  Y=>Go to Step b.
  
  N=>Go to Step 2.
2. Handle the DC -48 V abnormal voltage alarm and then see if the alarm is cleared.
  Y=>Alarm handling is completed.
  
  N=>The alarm is not cleared. Go to Step 2.
Check if the PSU and the PMU are inserted tight.
Y=>Go to Step 3.

N=>Go to Step 4.
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 4.
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.