| 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 |
| 3 | Board No. | Number of the fault board 0:PMU0 |
| 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 |
This alarm is generated when the PMU detects that the DC -48 V voltage output by the NPSU is above the upper limit.
Check if the DC -48 V voltage is above the upper limit.
Y=>Go to Step 2.
N=>Go to Step 3.
Y=>Go to the step b.
N=>Go to Step 3.
If the PSU has back up, stop the PSU and then see if the alarm is cleared.
Y=>Alarm handling is completed.
N=>The alarm is not cleared. Go to Step 3.
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.