Man-machine e1 maintenance interface software, Description, Man-machine e1 maintenance interface software” on – Nortel Networks Circuit Card User Manual
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NT5D33 and NT5D34 Lineside E1 Interface cards
553-3001-211 Standard 3.00 August 2005
Man-Machine E1 maintenance interface software
Description
The Man-Machine Interface (MMI) provides E1-link diagnostics and
historical information for the LEI system. See “Installation and
Configuration” on
for instructions on how to install the cabling and
configure the terminal for the MMI. The following sections will describe the
options available through the LEI’s MMI terminal and will explain how to
set-up, configure, and use the MMI.
The MMI provides the following maintenance features:
•
configurable alarm parameters
•
E1-link problem indicator
•
current and historical E1-link performance reports
•
E1 verification and fault isolation testing
•
configuration of A\B bits (North American Standard, Australian P2, or
customized settings are available)
Alarms
The MMI may be used to activate alarms for the following E1-link
conditions:
•
excessive bit-error rate,
•
frame-slip errors,
•
out-of-frame,
•
loss-of-signal, and
•
blue alarm.
Pre-set thresholds and error durations trip LEI alarm notifications. For
descriptions of each of these E1-link alarm conditions, see “Performance
counters and reporting” on
. For instructions on how to set alarm
parameters, see “Set Alarm” on
. For information on accessing
alarm reporting, see “Display Alarms” on