Nortel Networks 1000 - 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 no no no no
Ground start yes no no no no
Loop dial
repeating no yes yes no no
Loop OAID no no yes no no
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
Copyright © 2003-2008 Nortel Networks
.