Nortel Networks Circuit Card 311 - Manual (Page 243)

Man-Machine T1 maintenance interface software 243
Set Clearing
Use the Set Clearing (S C) command set to enable or disable alarm
self-clearing. Answer Y or N to the question: "Enable Self Clearing? (YES
or NO)". If "Enable Self-Clearing" is chosen (the factory default condition),
the system automatically clears alarms after the alarm condition is no longer
detected for the corresponding duration period.
The "Disable Self-Clearing" option causes the system to continue the
alarm condition until the Clear Alarm (C A) command set is entered. Line
processing and the yellow alarm indication to the CPE is terminated as soon
as the alarm condition clears, even if "Disable Self-Clearing" is set.
Display Configuration
The Display Configuration (D C) command set displays the various
configuration settings established for the Lineside T1 card. Entering the
Display Configuration (D C) command set causes a screen similar to the
following to appear:
LTI S/N 1103 Software Version 1.01 3/03/95 1:50
Alarms Enabled: YES Self Clearing Enabled: YES
Alarm Level 1 threshold value: E-7 Threshold duration (in seconds): 10
Alarm Level 2 threshold value: E-5 Threshold duration (in seconds): 1
Frame slips alarm level threshold: 5 Threshold duration (in hours): 2
Current dip switch S1 settings (S1..S8) On Off Off On Off Off Off On
Current dip switch S2 settings (S1..S8) On Off On Off Off Off On Off
Alarm operation and reporting
The MMI monitors the T1 link according to the parameters established
through the Set Alarm command set for the following conditions:
• Excessive bit error rate
• Frame slip errors
• Out of frame condition
• Loss of signal condition
• Blue alarm (AIS) condition
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
Copyright © 2003-2008, Nortel Networks
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