Alarm Clearing Condition
The alarm is cleared when the fan tray is inserted or the HFA cable is reconnected.
2.3.6.2 ALM-256 Uart Communication Fail Alarm
Description
If no response is returned for the communication between the main control board and the HFA
after 10 consecutive attempts, this alarm is generated.
Attribute
Alarm ID
Alarm Severity
Alarm Type
256
Major
Fault alarm
Parameter
Parameter
Description
Frame
Subrack number of the EDFA
Slot
Slot number of the EDFA
Impact on the System
The communication with the HFA fails, and the service life and services of the EDFA will be
affected.
Possible Cause
The hardware is faulty.
Handling Procedure
Contact Huawei technical support.
Alarm Clearing Condition
The communication between the main control board and the HFA is normal.
2.3.6.3 ALM-4102 Mainboard start up Event
Description
When the control module restarts or is powered on, this event is generated.
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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