Nortel Circuit Card Installation Manual page 236

Page 236 of 906
Alarm operation and reporting
553-3001-211 Standard 3.00
NT5D11 and NT5D14 Lineside T1 Interface cards
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
Alarms Enabled: YES
Alarm Level 1 threshold value: E-7
(in seconds): 10
Alarm Level 2 threshold value: E-5
(in seconds): 1
Frame slips alarm level threshold: 5
(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
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
August 2005
3/03/95 1:50
Self Clearing Enabled: YES
Threshold duration
Threshold duration
Threshold duration