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TlossRxHt

 

Table 1: Alarm Details

Parameter

Description

Code

tlossRxHt

Description/Cause

Loss Above High Threshold, Receive: The measured optical power loss in the receive fiber is above the high threshold.

Entities Affected

Terminal amplifier line ports (see respective table below).

Default Severity

Minor

Service Affecting

Yes (true).

Alarm Clearing

See Clearing a TlossRxHt alarm.

Related Fault Hierarchy

See Terminal amplifier port fault hierarchy.

Table 2: Terminal Amplifier Line Ports

Entity Name

 

Fault Indicator

Module

Indicator

Status

line:<chassis>/<slot>/1/<portNum>

AMP1

Fault LED, Line port

On

Clearing a TlossRxHt Alarm

Note

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

  1. Retrieve statistics for the terminal amplifier line port to view the value of the Optical power loss in recv. direction counter:
    show statistics current line:identifier
    Note

    For detailed AMP1 specifications, see the BTI7800 Series Hardware Overview and Installation Guide.

  2. Check for the following problems, and resolve them if they exist:
    • There is excessive loss on the receive span fiber.

    • The span length is excessive, resulting in loss that cannot be supported.

    • There is excessive loss on upstream patch fibers.

  3. Check for alarms on the terminal amplifier line port:
    • If the alarm has cleared, you have completed this procedure.

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