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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.