Nortel Networks 1000 - Manual (Page 635)

Introduction 635
— Type I or Type II signaling
— Duplex (DX) signaling
•
Paging (PAG) trunks
Type I signaling utilizes two signaling wires plus ground. Type II and DX
signaling utilizes 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 E and M Trunk card.
Table 241
Trunk and signaling matrix
Trunk types
Signaling RLM/RLR TIE PAG CSA/CAA/CAM
2-wire E and M Yes Yes Yes Yes
4-wire E and M Yes Yes No 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
The NT8D15 E and M Trunk card interfaces four analog telephone trunks
to the CS 1000. Each trunk interface connects to a trunk facility using tip
and ring leads that carry voice, ringing, and tone signaling, and to signaling
interfaces by E and M leads. Each unit can be configured independently
by software control in the Trunk Data Block program LD 14.
Up to four analog trunk cards are supported in each Media Gateway and
Media Gateway Expansion. The NT8D15 E and M Trunk Card can be
installed in slots 1, 2, 3, and 4 of the Media Gateway and slots 7, 8, 9, and
10 of the Media Gateway Expansion.
The NT8D15 E and M Trunk card supports the following types of trunks:
•
2-wire E and M Type I signaling trunks
•
4-wire E and M Trunks:
— Type I or Type II signaling
— duplex (DX) signaling
• paging (PAG) trunks
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 02.06 Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.