Nortel Networks 1000 User Manual

Page 640

640

NT8D15 E and M Trunk card

using a wiring plan similar to that used for line cards. See Communication
Server 1000M and Meridian 1 Large System Installation and Configuration
(NN43021-310) for termination and cross connect information.

Figure 207 "E and M Trunk card - faceplate" (page 639)

illustrates the

faceplate of the E and M Trunk card. The words "Dict Trk" appear on the
faceplate label because earlier versions of this card provided dictation
trunk connections for third-party equipment.

The faceplate of the card is equipped with a red LED. When an E and M
Trunk card is installed, the LED remains lit for two to five seconds while
the self-test runs. If the self-test completes successfully, 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 continues to flash or remains
weakly lit, replace the card.

In Option 11C systems the NT8D15 E and M Trunk Card is installed in
slots 1 through 10 of the Main cabinet, or in slots 11 through 50 of the
Expansion cabinets.

Each card provides four circuits. Each circuit connects with the switching
system and with the external apparatus by an 80-pin connector at the rear
of the pack.

Each trunk circuit on the card connects to trunk facilities by tip an ring
leads which carry voice, ringing, tone signaling and battery. Trunk option
selection is determined by software control in LD 14.

Nortel Communication Server 1000

Circuit Card Reference

NN43001-311

02.06

Standard

27 August 2008