Functional description 735
Figure 231
Paging trunk operation
— TypeI signaling through E and M leads
— TypeII 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 Trunkcard include
2-wire signaling, 4-wire signaling, and paging operation as follows:
•2-wire, E and M TypeI signaling (see Figure 236 "E and M TypeI
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, Nor tel Networks
.