Table 1: Alarm Details
Transmit Power Out of Specification, Low: The optical power transmitted is below the specified range for operation.
DOL optical channels (see respective table below).
Related Fault Hierarchy
Table 2: DOL Optical Channels (OCHs)
where channel is an alphanumeric string.
where n depends on the module and channel is an alphanumeric string.
Clearing a PosTxLow Alarm
Follow all applicable safety requirements as described in the BTI7800 Series Hardware Overview and Installation Guide.
- Retrieve statistics for the DOL OCH:
show statistics current och:identifier
- Refer to DOL OCH power alarm thresholds to determine whether the optical power transmitted is lower than the range specified for operation.
- If the optical power transmitted is too low, ensure that the upstream fiber connections are intact, thoroughly clean, and correctly connected.
- 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.