The system has detected a loss-of-frame (LOF) condition in an incoming E1 signal. Basic frame alignment is lost when either three consecutive incorrect frame alignment signals are detected or three consecutive non frame alignment signals are detected. Alcatel-Lucent 1665 DMXtend sends AIS downstream.
|
Alarm Data |
Value/Meaning |
|---|---|
|
Severity Levels |
Critical (CR), Major (MJ), Minor (MN), Not Alarmed (NA), Not Reported (NR) Default: Not Alarmed (NA) |
|
ASAP Type |
E1 Port |
|
AID Type |
E1 Port |
|
Date |
Month/day/year that the condition was detected |
|
Time |
Hour:minute:second that the condition was detected |
|
Probable Cause |
LOF (Loss of frame) |
|
Effect on Service |
SA or NSA |
|
Alarm Entity Type |
E1 |
|
Description |
inc. (from DSX) E1 LOF |
|
Likely Cause |
The upstream E1 terminal equipment failed or there is incorrect E1 port provisioning at either the upstream E1 terminal equipment or the local network element. |
|
Visible Indication |
Lighted CR, MJ, or MN LED on the SYSCTL faceplate (when the severity level is provisioned to Critical, Major, or Minor, respectively) and a flashing Fault LED on the alarmed circuit pack. |
|
Action |
Proceed to Procedure 5-47: Clear "inc. (from DSX) E1" alarms. |
| November 2011 | Copyright © 2011 Alcatel-Lucent. All rights reserved. |