| 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. 129:MMU |
| 3 | Board No. | Number of the fault board 0:MMU |
| 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 7: BTS3001C-108/BTS3001C-116 8: BTS3001C-204 |
| 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 this alarm occurs, if the fiber between the BTS3001C and the upper-level system fails, the services on the BTS3001C might be interrupted.
At tail fibers, loop westward and eastward fibers. Check whether the alarm is cleared.
Y=>The alarm handling ends.
N=>Go to step 2.
Measure the power of optical signals at the tail fiber and check whether the measured power is between -15dBm ~ -8 dBm.
Y=>The optical channel is normal. Go to step 3.
N=>The possible cause is that the hardware in the BTS3001C is faulty. Contact Huawei Customer Service Center.
Check whether the BTS3001C tail fiber connector is clean and whether the ring flange connection is correct. If not, clean the tail fiber and connect the ring flange correctly. After that, check whether the alarm is cleared.
Y=>The alarm handling ends.
N=>Go to step 4.
Measure the power of the optical signals from the near end at the NE involved in the Rx Optical Path Alarm Indicator. If the power is too low, the alarm might be cause by too much attentuation or bad connection of the fibers. Loop back the optical path segment by segment and measure the power of the optical signals on the optical path segment by segment to locate the faults. Remove the faults and check whether the alarm is cleared.
Y=>The alarm handling ends.
N=>The possible cause is that the hardware in the BTS3001C is faulty.Please contact Huawei Customer Service Center.