Owner's manual

650 NT8D15 E and M Trunk card

• 4-wire, DX signaling (see Figure 214 "4-wire DX signaling" (page 652))

• paging trunk operation (see Figure 215 "Paging trunk operation" (page

653)) with support access by low-resistance path at the PG/A1 leads

Note:

Paging end-to-end signaling is not supported.

Figure 212

E and M Type I signaling

Figure 213

E and M Type II signaling

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:

Nortel Communication Server 1000

Circuit Card Reference

NN43001-311 02.06 Standard

27 August 2008