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    OmsAis

    Table 1: Condition Details

    Parameter

    Description

    Code

    OmsAis

    Description

    Alarm Indication Signal, OMS: The local NE has received an OMS-AIS signal from the far-end NE, indicating that no signal is being transmitted upstream of (and toward) the local NE.

    Entities Affected

    DOL optical multiplex sections (see respective table below).

    Default Severity

    Not alarmed.

    Service Affecting

    Yes (true).

    Condition Clearing

    Clearing an OmsAis condition

    Related Fault Hierarchy

    See DOL OMS fault hierarchy.

    Table 2: DOL Optical Multiplex Sections (OMSs)

    Entity Name

     

    Fault Indicator

    Module

    Indicator

    Status

    oms:<chassis>/<slot>/0/L1<>

    ROADM2 or ILA

    Fault LED, L1 port

    On

    oms:<chassis>/<slot>/0/C<n>

    where the range of n depends on the module.

    Fault LED, C<n> port

    Clearing an OmsAis Condition

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

    1. Check for and clear all alarms upstream of the local NE.
    2. Ensure that the far-end NE has at least one optical channel provisioned and cross-connected.
    3. Check for excessive loss on the receive span fiber, and, if required, ensure that all upstream fibers are intact, thoroughly clean, and correctly connected.
    4. Check for conditions on the DOL OMS.
      • If the condition clears, you have completed this procedure.
      • If the condition does not clear, contact your next level of support.

    Modified: 2017-07-06