During the discovery phase of the communication link establishment procedure, a subshelf in a multi-shelf DCS system received multiple offer packets from different main shelves. The Multiple Main Shelf TIDs alarm is only reported in the maintenance mode.
|
Alarm Data |
Value/Meaning |
|---|---|
|
Severity Levels |
Minor (MN) |
|
AID Type |
Subshelf |
|
Date |
Month/day/year that the condition was detected |
|
Time |
Hour:minute:second that the condition was detected |
|
Probable Cause |
DATAFLT (Data Integrity Fault) |
|
Effect on Service |
NSA |
|
Alarm Entity Type |
EQPT |
|
Description |
Multiple Main Shelf TIDs |
|
Likely Cause |
More than one main shelf, with the same TID, is connected to LAN3, identified as DLAN on the back of a shelf. LAN3 serves as the control communications link between the main shelf and each subshelf. |
|
Visible Indication |
Lighted MN LED on the SYSCTL faceplate. |
|
Action |
Proceed to Procedure 5-135: Clear "Subshelf-related" alarms/conditions. |
| November 2011 | Copyright © 2011 Alcatel-Lucent. All rights reserved. |