Sdsl Loss Of Frame Alignment - Alcatel-Lucent 1643 AMS Operation Manual

Alarm messages

SDSL Loss of frame alignment

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Alarm identifier
Information
Alarm category
ASAP
Alarm severity
(default setting)
Reporting state
(default setting)
Local indications
Cause
Actions
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365-312-803R7.2
Issue 4, May 2007
SDSLcLOF
Alignment to the frame structure of the SHDSL signal, received at a
customer-side SHDSL port of the LTU, is not possible.
Transmission
sdsl
Prompt
Reported
–
The "Loss of sync word" (LOSW) condition has been detected at the respective
customer-side SHDSL port of the LTU. This means that the SHDSL segment
between the respective customer-side SHDSL port of the LTU and the next
attached SHDSL device has failed.
For the failed SHDSL segment:
•
Verify the correct routing of interconnecting cables.
•
Verify that the connectors are properly connected at the local and remote
end of the SHDSL segment.
•
Verify that the receiver at the local end of the SHDSL segment (i.e. at the
LTU where the LOSW condition has been detected) functions properly.
•
Verify that the transmitter at the remote end of the SHDSL segment (i.e. at
the next attached SHDSL device) functions properly.
Alcatel-Lucent - Proprietary
See notice on first page
1-127