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OchAis

 

Table 1: Condition Details

Parameter

Description

Code

ochAis

Description

Alarm Indication Signal (AIS), OCH: The local NE has received an OCH-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 channels (see respective table below).

Default Severity

Not alarmed.

Service Affecting

Yes (true).

Condition Clearing

See Clearing an OchAis condition.

Related Fault Hierarchy

See DOL OCH fault hierarchy.

Table 2: DOL Optical Channels (OCHs)

Entity Name

 

Fault Indicator

Module

Indicator

Status

och:<chassis>/<slot>/0L1/<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 an OchAis 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. Check for excessive loss on the receive span fiber, and, if required, ensure that all upstream fibers are thoroughly cleaned and correctly connected.
  3. Ensure that all upstream fibers are thoroughly clean and correctly connected.
  4. Check for conditions on the DOL optical channel.
    • If the condition clears, you have completed this procedure.

    • If the condition does not clear, contact your next level of support.