Nortel Networks 311

Physical description 501

The digital line card supports voice only or simultaneous voice and data

service over a single twisted pair of standard telephone wiring. When

a digital telephone is equipped with the data option, an asynchronous

ASCII terminal, or a PC acting as an asynchronous ASCII terminal, can be

connected to the system through the digital telephone.

The NT8D02 Digital Line Cardprovides 16 voice and 16 data communication

links.

The NT8D02 Digital Line Card supports voice only, or simultaneous voice

and data service over a single twisted pair of standard telephone wiring.

When a digital telephone is equipped with the data option, an asynchronous

ASCII terminal, or a PC acting as an asynchronous ASCII terminal, can be

connected to the system through the digital telephone.

The 32 port NT8D02 Digital Line Card is supported in the Media Gateway

and Media Gateway Expansion. It can be installed in slots 1, 2, 3, and

4 of the Media Gateway and slots 7, 8, 9, and 10 of the Media Gateway

Expansion.

The 48 port digital line card is not supported in any conﬁguration.

Physical description

The Digital Line card circuitry is mounted on a 31.75 cm by 25.40 cm (12.5

in. by 10 in.) printed circuit board. The NT8D02 is a double-sided PCB,

whereas the NTDK16 is 4 layers, but standard thickness. Both cards

connect to the backplane through a 120-pin or 160-pin edge connector.

The faceplate of the NT8D02 Digital Line card is equipped with a red LED

that lights when the card is disabled. See Figure 123 "Digital line card -

faceplate"(page 503). When the card is installed, the LED remains lit for two

to ﬁve seconds as a 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 continually ﬂashes

or remains weakly lit, replace the card.

Note: The NTDK16AA has one LED. This LED shows the status of

Card 4. The NTDK16BA has three LEDs. These LEDs show the status

of Cards 4, 5, and 6 conﬁgured on the NTDK16.

The digital line card circuitry is contained on a 320 mm (12.5 in.) by 254

mm (10 in.) printed circuit board (PCB). The NT8D02 is a double-sided

PCB, whereas the NTDK16 is 4 layers,but standard thickness. Both cards

connect to the backplane through a 120-pin or 160-pin edge connector.

Nortel Communication Server 1000

Circuit Card Reference

NN43001-311 01.04 Standard

Release 5.0 23May 2008