Physical description – Nortel Networks 1000 User Manual

Page 488

488

NT8D14 Universal Trunk card

Table 206
Supported trunk type and signaling matrix

CO/FX

WATS

DID/

DOD

Tie

PAG

RAN

Loop start

yes

Ground start

yes

Loop dial
repeating

yes

Loop OAID

yes

Physical description

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. 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. Each unit
on the card connects to the backplane through an 80-pin connector, the
backplane is cabled to the Input/Output (I/O) panel, and the I/O panel
is cabled to the cross-connect terminal. At the cross-connect terminal,
each unit connects to external apparatus, such as Central Office facilities
or recorded announcement equipment. Each unit connects to external
apparatus by tip and ring leads which carry voice, ringing, tone signaling,
and battery.

See the 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 Light Emitting Diode
(LED). See

Figure 125 "Universal trunk card - faceplate" (page 490)

When an NT8D14 Universal Trunk card is installed, the LED remains lit for
two to five seconds while the self-test runs. If the self-test is successful,
the LED flashes three times and remains lit. When 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 universal trunk card mounts in any IPE slot. 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.

Nortel Communication Server 1000

Circuit Card Reference

NN43001-311

02.06

Standard

27 August 2008