| 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. 88:DRRU 92:DRFU 96:MRRU 100:MRFU 101:GRFU 102:GRRU |
| 3 | Board No. | Number of the fault board 0-71:DRRU/DRFU/MRRU |
| 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. 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 |
Once the alarm is generated, there is a decrease in the coverage area of the Carrier Module.
Check whether the connector of the cable is securely connected to the antenna port of the Carrier Module.
Y=> The connector is securely connected. Go to step 2.
N=> The connector is not securely connected. Tighten the connector, and then check whether the alarm is cleared. If the alarm is cleared, the alarm handling is complete; otherwise, go to step [2].
Check whether the jumper connector on the tower or the jumper connector under the tower is securely connected to the feeder.
Y=> The connector is securely connected. Go to step 3.
N=> The connector is not securely connected. Tighten the connector, and then check whether the alarm is cleared. If the alarm is cleared, the alarm handling is complete; otherwise, go to step [3].
Replace the jumper of the antenna system.
Y=> The alarm is cleared. The alarm handling is complete.
N=> The alarm persists. Go to step 4.
Replace the Carrier Module, and then check whether the alarm is cleared.
Y=> The alarm is cleared. The alarm handling is complete.
N=> The alarm persists. Go to step 5.
Replace the antenna, and then check whether the alarm is cleared.
Y=> The alarm is cleared. The alarm handling is complete.
N=> The alarm persists. Please contact Huawei Customer Service Center.