Nortel Networks 1000 User Manual

Page 489

Physical description

489

The universal trunk card connects to the backplane through a 160-pin
connector shroud. The backplane is cabled to the I/O panel, which is
cabled to the Main Distribution Frame (MDF) by 25-pair cables. External
equipment, such as recorded announcement machines, paging equipment,
and central office facilities, connect to the card at the MDF.

See Communication Server 1000M and Meridian 1 Large System
Installation and Configuration (NN43021-310) for termination and
cross-connect information.

The faceplate of the card is equipped with a red LED. See

Figure 126

"Universal trunk card - faceplate" (page 491)

. When a universal trunk

card is installed, the LED remains lit for 2 to 5 seconds while the self-test
runs. If the self-test completes successfully, the LED flashes three times
and remains lit until the card is configured and enabled in software, then
the LED goes out. If the LED flashes continuously or remains weakly lit,
replace the card.

The trunk and common multiplexing circuitry is mounted on a 31.75 cm by
25.40 cm (12.5 in. by 10 in.) printed circuit board.

The NT8D14 Universal Trunk Card connects to the backplane through
a 160-pin connector shroud. External equipment, such as recorded
announcement machines, paging equipment, and Central Office facilities,
connect to the card at the back of the Media Gateway using a 25-pin
connector. See the Communication Server 1000M and Meridian 1 Large
System Installation and Configuration (NN43021-310) for termination and
cross-connect information.

Nortel Communication Server 1000

Circuit Card Reference

NN43001-311

02.06

Standard

27 August 2008