Nortel Networks 1000 User Manual

Page 636

636

NT8D15 E and M Trunk card

Type I signaling uses two signaling wires plus ground. Type II and DX
signaling uses two pairs of signaling wires. Most electronic switching
systems use Type II signaling.

Table 241 "Trunk and signaling matrix" (page 635)

lists the signaling and

trunk types supported by the NT8D15 E and M Trunk card.

Table 242
Trunk and signaling matrix

Trunk types

Signaling

RLM/RLR

Tie

PAG

CSA/CAA/CAM

2-wire E and M

Yes

4-wire E and M

Yes

Note: Yes
for 11C and
11C mini.

Yes

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

This chapter outlines the characteristics, application and operation of the
NT8D15 E and M Trunk Card. The information is intended to be used as a
guide when connecting customer-provided apparatus to the trunk circuit.

NT8D15 E and M Trunk Card has four identical trunk circuits. Each circuit
can be configured independently by software control. The trunk circuits on
the card support the following types of trunks:

•

two-wire E and M type I signaling trunks (non-ESN)

•

two-wire dial repeating trunks

•

two or four wire tie trunks

•

four-wire E and M type I and II signaling type II trunks (ESN and
Non-ESN applications)

•

Paging (PAG)

Type I signaling (as on the two-wire E & M trunk) utilizes two signaling
wires plus ground. Type II signaling utilizes tow pairs of signaling wires
and is used by most electronic switching systems.

Nortel Communication Server 1000

Circuit Card Reference

NN43001-311

02.06

Standard

27 August 2008