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    PosRxHigh

    Table 1: Alarm Details

    Parameter

    Description

    Code

    posRxHigh

    Description/Cause

    Receive Power Out of Specification, High: The optical power received is above the specified range for operation.

    Entities Affected

    DOL optical channels (see respective table below).

    Default Severity

    Minor

    Service Affecting

    Yes (true).

    Alarm Clearing

    See Clearing a PosRxHigh alarm.

    Related Fault Hierarchy

    See DOL OCH fault hierarchy.

    Table 2: DOL Optical Channels (OCHs)

    Entity Name

     

    Fault Indicator

    Module

    Indicator

    Status

    och:<chassis>/<slot>/0/L1/<channel>

    where channel is an alphanumeric string.

    ROADM2

    och:<chassis>/<slot>/0/C<n>/<channel>

    where n depends on the module and channel is an alphanumeric string.

    Clearing a PosRxHigh Alarm

    Note: Follow all applicable safety requirements as described in the BTI7800 Series Hardware Overview and Installation Guide.

    1. Retrieve PM statistics for the DOL OCH:
      show statistics current och:identifier
    2. Refer to DOL OCH power alarm thresholds to determine whether the optical power received is higher than the specified range for operation.
    3. If the optical power received is too high, add an attenuation pad in the optical path to bring the power down to a level within the specified range.
    4. Check for alarms on the DOL OCH.
      • If the alarm clears, you have completed this procedure.
      • If the alarm does not clear, contact your next level of support.

    Modified: 2017-04-25