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Man-Machine T1 maintenance interface software
Description
NT5D11 and NT5D14 Lineside T1 Interface cards
The Man-Machine Interface (MMI) supplies a maintenance interface to a
terminal that provides T1 link diagnostics and historical information. See
"Installation and configuration" on
the cabling and configure the terminal for the MMI.
This section describes the features of MMI and explains how to configure and
use the MMI firmware.
The MMI provides the following maintenance features:
•
default and reconfigurable alarm parameters
•
notification of T1 link problems by activating alarms
•
Reports on current and historical T1 link performance
•
T1 tests for T1 verification and fault isolation to lineside T1 card, T1
link, or CPE equipment
Alarms
MMI activates alarms for the following T1 link conditions:
•
excessive bit error rate
•
frame slip errors
•
out of frame condition
•
loss of signal condition
•
blue alarm condition
The alarms are activated in response to pre-set thresholds and error durations.
Descriptions of each of these T1 link alarm conditions, instructions on how
to configure alarm parameters, and access alarm reporting can be found in
"Alarm operation and reporting" on
page 204
for instructions on how to install
page
236.
Circuit Card
Description and Installation
Page 225 of 906
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