3.5.1 The EDFA-Fail Indicator Is Red
Symptom
The EDFA-Fail indicator is red.
Possible causes and procedures
Possible causes
Procedures
The output optical power of the
EDFA is lower than the
threshold for the output optical
power.
Check whether the output optical power of the EDFA
exceeds the threshold for the output optical power.
The temperature of the HFA
exceeds the upper limit.
Check whether the temperature of the HFA exceeds the
upper limit.
The PUMP current of the HFA
exceeds the upper limit.
Check whether the PUMP current of the HFA exceeds
the upper limit.
Other hardware is faulty.
Contact Huawei technical support engineers.
NOTE
When the PUMP is being enabled, it takes some time for the output power to increase to the set value.
Therefore, the output power of the EDFA is less than the set value, and the EDFA-Fail indicator is
steady red. After the output power becomes stable, the device recovers.
3.5.2 The ALM Indicator Is Red
Symptom
The ALM indicator is red.
Possible causes and procedures
Possible causes
Procedures
The fan temperature exceeds the
threshold.
Please refer to
.
The fan speed is abnormal.
Please refer to
.
Other hardware is faulty.
Contact Huawei technical support engineers.
3.5.3 The EDFA-In Indicator Is Red
Symptom
The EDFA-In indicator is red.
EDFA0820-D
Routine Maintenance Guide
3 Common Troubleshooting
Issue 02 (2018-07-02)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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