| 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. C7:P-CDU C9:D-CDU |
| 3 | Board No. | Number of the fault board 0:CDU 0 1:CDU 1 |
| 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. 3:BTS30; 5:BTS312; 10:BTS3012A; 11:BTS3006A; 12:BTS3012; 13:BTS3006C; 14:BTS3002E; 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 |
This alarm shows that the TTA configured for the diversity receive path of the CDU cannot work normally. This will lower the receive flexibility of the diversity receive path of the BTS compared to the receive flexibility when the TTA works normally. However, the BTS can still work normally in this case.
Y=> Go to Step 2.
N=> Go to Step 3.
At the one end of a removed jumper, measure the voltage between the inner and the outer conductors with a multimeter to see whether they are short-circuited.
Y=> Further check the antenna feeder segment by segment.
N=> Go to Step 3.
Replace the CDUReplace the CDU and check whether the alarm is cleared.
Y=> The alarm handling ends.
N=> Go to Step 4.
Replace the TTA and check whether the alarm is cleared.
Y=> The alarm handling ends.