Cabling the lei card – Nortel Networks 1000 User Manual

Page 274

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NT5D33 and NT5D34 Lineside E1 Interface cards

Restricted:

Motherboard/Daughterboard
2 and 3
3 and 4
6 and 7
10 and 11
11 and 12
14 and 15

If the LEI must be installed into one of the restricted card slot pairs,
rewire the IPE module card slot to the I/O panel by installing an additional
NT8D81 cable from the LEI motherboard slot to the I/O panel, and
re-arranging the three backplane connectors for the affected card slots.
This permits the connection of the NT5D35AA or NT5D36AA LEI card
carrier and maintenance external I/O cable at the IPE and CE module I/O
panel connector for card slots that are otherwise restricted.

Alternatively, all LEI connections can be made at the main distribution
frame instead of connecting the NT5D35AA or NT5D36AA LEI card
external I/O cable at the I/O panel. This eliminates these card slot
restrictions.

Cabling the LEI card

After the dip switches are configured and the LEI installed into the selected
card slots, the LEI can be cabled to the LTU equipment, the MMI terminal
or modem (optional), an external alarm (optional), and other LEIs for daisy
chaining use of the MMI terminal (optional).

The LEI is cabled from its backplane connector through connections from
the motherboard circuit card only to the I/O panel on the rear of the IPE
module. No cable connections are made from the daughterboard circuit
card. The connections from the LEI to the I/O panel are made with the
NT8D81AA Tip and Ring cables provided with the IPE module.

Cabling from the I/O panel with the NT5D35AA or NT5D36AA
lineside E1 I/O cable

In a twisted-pair E1 installation, make the connection from the I/O panel
to the E1 link and other external devices with the NT5D35AA lineside E1
I/O cable.

This cable consists of a 25-pair amphenol connector (P1) on one end
which plugs into the I/O panel. The other end has four connectors:

1.

a DB15 male connector (P2), which plugs into the E1 line

2.

a DB9 male connector (P3), which plugs into an external alarm system

Nortel Communication Server 1000

Circuit Card Reference

NN43001-311

02.06

Standard

27 August 2008

Copyright © 2003-2008 Nortel Networks

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