2.3.1 EDFA Optical Power Alarms
2.3.1.1 ALM-65536 EDFA Input Low Power Alarm
Description
When the input optical power of the EDFA PUMP switch is lower than the lower threshold,
this alarm is generated.
Attribute
Alarm ID
Alarm Severity
Alarm Type
65536
Critical
Fault alarm
Parameter
Parameter
Description
Frame
Subrack number of the EDFA
Slot
Slot number of the EDFA
OptModule
Index of the HFA
current input optical
power
Actual input optical power
Impact on the System
Services may be affected when the optical power is excessively low.
Possible Cause
The input optical power is lower than the lower threshold.
NOTE
Range of
Input Power Threshold
:
input los threshold
to 10. Default: -5 dBm.
Note that
input los threshold
(the low input optical power PUMP shutdown threshold of the EDFA) is
configurable.
Handling Procedure
1.
Run the
show edfa all
command to query the actual input optical power and the lower
input optical power threshold.
2.
Determine whether the lower optical power threshold is proper. If it is improper, modify
it. If it is proper, increase the input optical power.
EDFA0820-D
Routine Maintenance Guide
2 Common Alarm Handling
Issue 02 (2018-07-02)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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