| 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. 65:DTRU/GTRU/DDRM 88:DRRU 92:DRFU 96:MRRU 100:MRFU 101:GRFU 102:GRRU 151:QTRU |
| 3 | Board No. | Number of the fault board |
| 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. 12:BTS3012; 13:BTS3006C; 14:BTS3002E; 15:BTS3012AE; 16:BTS3012 II; 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 |
All the services on the DTRU will be interrupted upon occurrence of this alarm.
When this alarm occurs, the system shuts off the power amplifier automatically. For the DTRU of main BCCH, DTRU mutual aid is started.
On the LMT or local maintenance terminal, check whether the temperature inside the cabinet is higher than 52℃.
Y=> Go to step 2;
N=> Go to step 3;
Note:
It takes about two minutes for the maintenance terminal to display the actual temperature of the board.
Check whether a VSWR alarm is generated on the combiner and divider. If the VSWR alarm is reported, ensure that the antenna is correctly connected, or replace the combiner and divider. Check whether the alarm is cleared.
Y=> The alarm handing ends;
N => Go to step 3.
Check whether the 4932 Hierarchical Power Supply Alarm is generated.
Y=> Clear the alarm according to the handing suggestions in the 4932 Hierarchical Power Supply Alarm;
N=> Go to step 4.
Check whether the 9736 Fan Fault Alarm is generated.
Y=> Clear the alarm according to the handing suggestions in the 9736 Fan Fault Alarm;
N=> Go to step 5.
On the LMT or local maintenance terminal, perform the fourth level reset for the BTS. Check whether the alarm is cleared.
Y=> The BTS has false alarm. The alarm handing ends;
N => The BTS temperature detecting circuit might be faulty. Contact Huawei Customer Service Center.