IN-PWR-LOW
|
Item |
Description |
|
Alarm Name |
IN-PWR-LOW |
|
Name |
Input power is too low |
|
Alarm Level |
Critical |
|
Alarm Category |
Equipment alarm |
|
Alarm Board |
WPA/WLA/WBA |
|
Alarm Indication |
The alarm indicator of the board flashes three times every other second |
|
Alarm Reasons |
(1) The input optical power is too low. |
|
Processing Methods |
(1) Measure the input optical power; if the optical power is normal, replace the board. (2) If the input optical power is decreased, check whether attenuation of the front end variable attenuator in the optical amplifier board is increased. (3) Check the transmitting optical power of opposite station. If normal, check whether abnormal attenuation occurs in the optical path. |
|
Remarks |
IN-SIG-LOSS
|
Item |
Description |
|
Alarm Name |
IN-SIG-LOSS |
|
Name |
Loss of input signal |
|
Alarm Level |
Critical |
|
Alarm Category |
Equipment alarm |
|
Alarm Board |
WPA/WBA/WLA |
|
Alarm Indication |
The alarm indicator of board flashes three times every other second |
|
Alarm Reasons |
(1) There is no input optical signal. (2) EDFA module fault. |
|
Processing Methods |
(1) Measure the input optical power; if normal, replace the optical amplifier board. (2) First check whether the variable attenuator of the front optical amplifier board is damaged. (3) Check whether the transmitting optical power of opposite station is normal; if yes, check whether abnormal attenuation occurs in the optical path. |
|
Remarks |
LSR-BCM-ALM
|
Item |
Description |
|
Alarm Name |
LSR-BCM-ALM |
|
Name |
Set bias current of the laser over threshold |
|
Alarm Level |
Major |
|
Alarm Category |
Equipment alarm |
|
Alarm Board |
WPA/WBA/WLA |
|
Alarm Indication |
The alarm indicator of the board flashes twice every other second |
|
Alarm Reasons |
(1) The laser is aged. (2) Board fault.. |
|
Processing Methods |
(1) Reset, unplug/plug the board. (2) Replace the faulty board. |
|
Remarks |
LSR-COOL-ALM
|
Item |
Description |
|
Alarm Name |
LSR-COOL-ALM |
|
Name |
Cooling current of the laser over threshold |
|
Alarm Level |
Major |
|
Alarm Category |
Equipment alarm |
|
Alarm Board |
TWF/TWC/RWF/RWC/LWC/OCU/SC1/SC2/WPA/WBA/WLA |
|
Alarm Indication |
The alarm indicator of the board flashes twice every other second |
|
Alarm Reasons |
(1) Cooling loop fault. (2) The ambient temperature over threshold |
|
Processing Methods |
(1) Check whether the ambient temperature of the equipment room is normal. (2) If the temperature of the equipment room is normal, replace the board to solve the problem. |
|
Remarks |
LSR-DRI-ALM
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