Nortel Networks Circuit Card 311 - Manual (Page 735)

Functional description 735
Figure 231
Paging trunk operation
— Type I signaling through E and M leads
— Type II signaling with near-end seizure by SB/M leads and far-end
detection by E/SG leads
• 4-wire, DX signaling (see Figure 234 "4-wire DX signaling" (page 738) )
• paging trunk operation (see Figure 235 "Paging trunk operation" (page
739) ) with:
— support access by low-resistance path at the PG/A1 leads
— paging end-to-end signaling not supported
The functions provided by each unit on the E and M Trunk card include
2-wire signaling, 4-wire signaling, and paging operation as follows:
• 2-wire, E and M Type I signaling (see Figure 236 "E and M Type I
signaling" (page 739) ) with:
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
Copyright © 2003-2008, Nortel Networks
.