The bit error ratio (BER) in the DS1 signal incoming from the DSX-1 exceeds the provisioned failure threshold of 10-3 (default).
|
Alarm Data |
Value/Meaning |
|---|---|
|
Severity Levels |
Critical (CR), Major (MJ), Minor (MN), Not Alarmed (NA), Not Reported (NR) Default: Not Alarmed (NA) |
|
ASAP Type |
DS1 Port |
|
AID Type |
DS1 Port |
|
Date |
Month/day/year that the condition was detected |
|
Time |
Hour:minute:second that the condition was detected |
|
Probable Cause |
T-BERL (incoming line signal BER thresholds exceeded) |
|
Effect on Service |
SA or NSA |
|
Alarm Entity Type |
T1 |
|
Description |
inc. (from DSX) DS1 sig. failed |
|
Likely Cause |
Mismatch of line code (AMI/B8ZS) Failure of upstream equipment or facility (towards the DSX-1) Cross-talk in office wiring Failure of the 28DS1/28DS1PM or 56DS1/E1 circuit pack. |
|
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 5-50: Clear "inc. (from DSX) DS1" alarms. |
| November 2011 | Copyright © 2011 Alcatel-Lucent. All rights reserved. |