Avaya Nortel Communication Server 1000 Reference page 216

NT5D33 and NT5D34 Lineside E1 Interface cards
with the external alarm connections, MMI connections are optional. Up to 128 LEIs can be
linked, located in up to 16 separate IPE shelves, to one MMI terminal using the daisy chain
approach.
If only one LEI is installed, cable from the DB9 male connector labeled "P5" (toward 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
female connector labeled "P4" (away from MMI terminal).
If two or more LEIs are being installed into the system, the MMI port connections can be daisy-
chained together so that only one MMI terminal is required for up to 128 LEIs. See
LEI card - connecting two or more cards to the MMI
to 15 separate IPE shelves. Start with any card slot in the IPE shelf and connect to any other
card slot. Connected card slots do not need to be consecutive.
Connecting two or more LEIs to the MMI terminal
Follow this procedure for connecting two or more LEIs to the MMI terminal:
1. Cable the DB9 male connector labeled "P5" (toward MMI terminal) to one of the
2. Make the connection from the first card to the second card by plugging the DB9
3. Repeat step 2 for the remaining cards.
4. At the last card of the daisy chain, make no connection from the DB9 female
5. If two LEIs are too far apart to connect the "P4" and "P5" connectors connect them
216 Circuit Card Reference
COM ports on the back of any TTY, a PC running a terminal emulation program, or
a modem.
female connector labeled "P4" (away from MMI terminal) from the first card into the
DB9 male connector of the second card labeled "P5" (toward MMI terminal).
connector labeled "P4" (away from MMI terminal).
with an off-the-shelf DB9 female to DB9 male straight-through extension cable,
available at any PC supply store.
Comments? infodev@avaya.com
on page 217. Cards can be located in up
Figure 47:
July 2011