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How to eliminate the display of an alarm indicator light on a board of the NG-SDH equipment

Publication Date:  2012-07-25 Views:  37 Downloads:  0
Issue Description
No actual service runs on a tributary board of the OSN 3500 equipment, but the channels configured with service often report T_ALOS and other invalid alarms so that the alarm indicator light is on. The customer sometime hopes to eliminate the display of the alarm indicator light. 
Alarm Information
T_ALOS 
Handling Process
It is verified that:
1. For the NG-SDH equipment in versions earlier than V1R7, the alarm indicator light on a board is off only after alarms are cleared and is still on even if the alarms are suppressed.
2. For the NG-SDH equipment in V1R7 or later versions, the alarm indicator light on a board is off after alarms are suppressed. 
 
Root Cause
Null
Suggestions
If you hope to turn off an alarm indicator light during maintenance, refer to this case. 

END