Nortel Circuit Card, Installation Manual, Page: 238 / 908

Page 238 of 906 NT5D11 and NT5D14 Lineside T1 Interface cards
553-3001-211 Standard 3.00 August 2005
mode, yellow alarms can be sent and the lineside T1 card can enter line
processing mode.
Clear Alarm
The Clear Alarm (C A) command set will clear all activity initiated by an
alarm: the external alarm hardware will be deactivated (the contact normally
open will be reopened), the LED light will go out, an entry will be made in
the alarm log of the date and time the alarm was cleared, and line processing
will cease (for alarm level 2 only). When this command set is typed in, the
MMI will display the message “Alarm acknowledged.” If the alarm condition
still exists, the alarm will be declared again.
Display Alarms
A detailed report of the most recent 100 alarms with time and date stamps can
be displayed by entering the Display Alarms (D A) command set into the
MMI. Entering the Display Alarms (D A) command set will cause a screen
similar to the following to appear:
The Pause command can be used to display a full screen at a time by entering
D A P.
Clear Alarm Log
Clear all entries in the alarm log by typing in the Clear Alarm Log
(C A L) command set.
Display Status
The Display Status (D S) command set displays the current alarm condition
of the T1 link as well as the on-hook or off-hook status of each of the 24 ports
Alarm Log
3/03/95 1:48 Yellow alarm on T1 carrier
3/03/95 1:50 Initialized Memory
3/03/95 2:33 T1 carrier level 1 alarm
3/03/95 3:47 T1 carrier level 2 alarm
3/03/95 4:43 T1 carrier performance within
thresholds
3/03/95 15:01 Log Cleared