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34 System components
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The E1/T1 card serves four to eight spans and is a motherboard to
the NTBK51AA Downloadable D-channel handler and the NTAK93AB
D-channel handler.
The E1/T1 card requires one slot on the 19-inch 2u MGP shelf. The other
slot on the shelf is reserved for the Media Gateway Controller.
E1/T1 card expansion daughterboard
The E1/T1 base card houses one E1/T1 expansion daughterboard to
support more than four to eight spans. This expansion mates with connector
pins on the E1/T1 card motherboard.
LED indicators
The E1/T1 card is equipped with the following 33 LED indicators on the
faceplate controlled by the card software as shown in
indicators on the E1/T1 card" (page
Figure 6
LED indicators on the E1/T1 card
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Media Gateway 1000E PRI Gateway Installation and Commissioning
Copyright © 2007, Nortel Networks
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embedded FTP Server for firmware upgrades over the Internet
database backup and restore through FTP or e-mail
Status LEDs
embedded Clock Reference functionality
Gain Control and Voice pad
Web-based Error logs
key-code scalability for the number of E1/Ts
continuity tests
Nortel CardLAN interface
one LED for power
one LED for fans
three LEDs indicators for each E1/T1 span:
— ENB/DIS indicates if the span is enabled/disabled by the system
— RED (local) alarm indicator
— YELLOW (remote) alarm indicator
Nortel Communication Server 1000
NN43041-311 01.01 Standard
Release 5.0 30 May 2007
Figure 6 "LED
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