Nortel Networks 1000 User Manual

Page 207

Installation and configuration

207

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.

Figure 36
Lineside T1 card - connecting two or more cards to the MMI

--End--

P5 connector pins 2, 3, 5, 7 and 9 are used to connect the Lineside T1
card to the MMI terminal and daisy chain Lineside T1 cards together for
access to a shared MMI terminal. When logging into a Lineside T1 card,
"control 2" is asserted by that card, which informs all of the other cards
not 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

Nortel Communication Server 1000

Circuit Card Reference

NN43001-311

02.06

Standard

27 August 2008