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OSN 500 550 580 V100R008C50 Alarms and Performance Events Reference 02

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The DDN_RMFA is a remote alarm of the framed E1 multiframe on the DDN side of a board. If the E1 signals received on the DDN side occur in Z (Z is from two through five) consecutive CAS multiframe cycles, the DDN_RMFA alarm is reported when all the CAS multiframe remote alarm bits of the input signals are set to 1.


Alarm Severity Alarm Type


Communication alarm



Impact on the System

When the DDN_RMFA alarm occurs, the services at the local station are not affected. This alarm just shows that the DDN_LMFA alarm is received at the opposite station.

Possible Causes

The possible cause of the DDN_RMFA alarm is as follows:

The DDN_LMFA alarm is received at the opposite end.


  1. After you clear the DDN_LMFA alarm received at the opposite end, the DDN_RMFA alarm is automatically cleared.

Related Information


Updated: 2019-01-21

Document ID: EDOC1100020975

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