Nortel Networks Circuit Card 311 User Manual
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NT5D33 and NT5D34 Lineside E1 Interface cards
1, depending on how the dip switch for line processing is set (dip switch 2,
position 6). See
Table 118 "LEI card - E1 Switch 2 (S2) dip switch settings"
If the MMI detects E1-link failures for any of the other conditions monitored
(out-of-frame, excess frame slips, loss-of-signal, and blue alarm condition),
the LEI automatically performs all alarm level 2 functions. The MMI
also sends a yellow alarm to the far-end LTU. Alarms may be configured
to self-clear when the alarm condition is no longer detected. See
.
All alarms activated produce a record in the alarm log. The alarm log
maintains records for the most recent 100 alarms, and can be displayed,
printed, and cleared. The alarm log displays or prints the alarms in
descending chronological order, beginning with the most recent alarm.
Notifications in the alarm log include the date and time of the alarm’s
occurrence.
E1 Performance Counters and Reports
The MMI maintains performance error counters for the following E1
conditions:
•
errored seconds
•
bursty seconds
•
unavailable seconds
•
framer-slip seconds
•
loss-of-frame seconds
The MMI retains E1 performance statistics for the current hour, and for
each hour for the previous 24. For descriptions of these performance error
counters and instructions on how to create a report on them and clear them,
see
"Performance counters and reporting" (page 309)
E1 Verification and Fault Isolation Testing
The MMI enables various tests to be performed that either verify that the E1
is working adequately, or help to isolate a problem to the LEI, the E1 link, or
the CPE. For descriptions of all of these tests and instructions on how to
run them, see
.
Login and Password
The MMI can be accessed through any TTY, PC running a terminal
emulation program, or modem. After installing the MMI terminal and card
cables, the MMI can be configured.
For single-card installations, it is accessed by entering
L<CR>
to login.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
01.04
Standard
Release 5.0
23 May 2008
Copyright © 2003-2008, Nortel Networks
.