| 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. 75:DFCU 76:DFCB |
| 3 | Board No. | Number of the fault board Value range:0-35 |
| 4 | PassNo | Number of the passage where the faulty board is located. |
| 5 | SubLink No. | Alarm sub-category number 255: This alarm with SubNo. 255 is reported when the cavity is being tuned or the data configuration is incorrect. 0-3: This alarm with SubNo. 0 to 3 is reported if a certain cavity of the DFCU fails to be tuned, where the SubNo. is equal to the corresponding cavity number. 4-7: This alarm with SubNo. 4 to 7 is reported when a certain cavity of the DFCU is tuned successfully but the TRX actually linked to it is inconsistent with the BSC data configuration, where the SubNo. is equal to the corresponding cavity number plus 4. |
| 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. 12:BTS3012; 15:BTS3012AE; 16:BTS3012 II; |
| 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 |
When the alarm generates, the basic services proceed, but the downlink coverage goes down.
Check if the SubNo. of the alarm is 4-7.
Y=>Modify the data configuration, and add corresponding TRX in the DFCU connection configuration. Observe if the alarm is cleared.
N=>Go to Step 2.
Reset the DFCU through the LMT, check whether the alarm is cleared.
Y=>The alarm handling ends.
N=>Go to step 3.
Y=> The alarm is cleared. Alarm Handling is completed.
N=> The alarm is not cleared. Please contact Huawei Customer Service Center.