Computer Hardware Installation Guide

590 NT8D14 Universal Tr unk card

Figure 150

Loop start call connection sequence - incoming call

Outgoing calls

For outgoing calls, the software sends an outgoing seizure message to

place a low-resistance loop across the tip and ring leads toward the CO.

See Figure 151 "Ground start call states - incoming call from CO/FX/WATS"

(page 591) and Figure 152 "Ground start call connection sequence -

incoming call from CO/FX/WATS" (page 592). When the CO detects the

low-resistance loop, it prepares to receive digits.When the CO is ready

Nortel Communication Server 1000

Circuit Card Reference

NN43001-311 01.04 Standard

Release 5.0 23 May 2008