Physical Description - Nortel Enterprise 1000 Reference Manual

Table 16
Trunk and signaling matrix
Signaling
2-wire E&M
4-wire E&M
Legend:
RLM Release Link Main
RLR Release Link Remote
CSA Common Control Switching Arrangement
CAA Common Control Switching Arrangement with Automatic Number Identification (ANI)
CAM Centralized Automatic Message Accounting (CAMA) trunk

Physical description

Succession Communication Server for Enterprise 1000 Circuit Card Reference Guide
Table 16 lists the signaling and trunk types supported by the NT8D15 E&M
trunk card.
RLM/RLR
Yes
Yes
The E&M trunk card mounts in slots 1, 2, and 3 of the Media Gateway, and
slots 7,8,9, and 10 of the Media Gateway Expansion. The line interface 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 E&M trunk card connects to the backplane through a 160-pin connector
shroud. External equipment connects to the card at the back of the Media
Gateway using a 25-pin connector. Telephone lines from station equipment
cross connect to the OPS analog line card at the MDF using a wiring plan
similar to that used for line cards. See Succession Communication Server for
Enterprise 1000 Planning and Installation Guide (553-3023-210) for
termination and cross connect information.
Figure 34 illustrates the faceplate of the E&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&M 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
NT8D15 E&M Trunk Card
Trunk types
Tie PAG
Yes Yes
Yes No
Page 99 of 236
CSA/CAA/CAM
Yes
Yes