Indication of the REM_SF alarm

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REM_SF indicates the remote signal failure alarm. This alarm is generated by the client side of the local OTU board when the client side of the remote OTU board fails to receive signals (for example, when R_LOS and R_LOF alarms are generated).

Other related questions:
Indication of the REM_SF alarm
REM_SF indicates the remote signal failure alarm. This alarm is generated by the client side of the local OTU board when the client side of the remote OTU board fails to receive signals (for example, when R_LOS and R_LOF alarms are generated).

Indication of the red alarm indicator on the Metro 1000
If the alarm indicator on the Metro 1000 is steady red, a critical alarm is generated. You need to check it on the NMS.

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