Nortel Circuit Card Installation Manual page 273

NT5D33 and NT5D34 Lineside E1 Interface cards
Vintage levels cabling 30 ports:
For modules with vintage levels that cabled 30 ports to the I/O panel, the LEI
can be installed in any pair of card slots 0-15.
Vintage levels cabling 16 ports:
For modules with vintage levels that cable 16 ports to the I/O panel, the LEI
can be installed into the card slot pairs shown in the following card slots:
Available: Motherboard/Daughterboard
0 and 1
1 and 2
4 and 5
5 and 6
8 and 9
9 and 10
12 and 13
13 and 14
LEIs must not be installed into the following card slot pairs:
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 will permit 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.
Circuit Card Description and Installation
Page 273 of 906