Nortel Circuit Card 311 Reference page 217

to talk on the bus, but rather to pass the data straight through. The pins
labeled "control 1" are reserved for future use. As with the external alarm
connections, MMI connections are optional. Up to 128 Lineside T1 cards,
located in up to 16 separate IPE shelves, can be linked to one MMI terminal
using the daisy chaining approach.
If only one Lineside T1 card is being installed, cable from the DB9 female
connector labeled "P5" (towards MMI terminal) to one of the COM ports
on the back of any TTY, a PC running a terminal emulation program, or a
modem. For installations of only one card, no connection is made to the
DB9 male connector labeled "P4" (away from MMI terminal).
If two or more Lineside T1 cards are being installed into the Meridian 1
system, the MMI port connections can be daisy-chained together so that
only one MMI terminal is required for up to 128 Lineside T1 cards. See
Figure 38 "Lineside T1 card - connecting two or more cards to the MMI"
(page
card slot in the IPE shelf can be connected to any other card slot; the card
slots connected together do not need to be consecutive.
Follow this procedure for connecting two or more Lineside T1 cards to the
MMI terminal:
Step
1
2
3
4
5
Copyright © 2003-2008, Nortel Networks
.
218). Cards can be located in up to 16 separate IPE shelves. Any
Action
Cable the DB9 male connector labeled "P5" (towards MMI terminal)
to one of the COM ports on the back of any TTY, a PC running a
terminal emulation program, or a modem.
Make the connection from the first card to the second card by
plugging the DB9 female connector labeled "P4" (away from MMI
terminal) from the first card into the DB9 male connector of the
second card labeled "P5" (towards MMI terminal).
Repeat Step 2 for the remaining cards.
When the last card in the daisy chain is reached, make no connection
to the DB9 male connector labeled "P4" (away from MMI terminal).
If two Lineside T1 cards are located too far apart to connect the
"P4" and "P5" connectors together, connect them together with an
off-the-shelf DB-9 female to DB-9 male straight-through extension
cable, available at any PC supply store.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
Installation and configuration 217