Computer Hardware Installation Guide

592 NT8D14 Universal Tr unk card

Figure 152

Ground start call connection sequence - incoming call from CO/FX/WATS

For outgoing calls from the Meridian 1, software sends an outgoing seizure

message to place a low-resistance loop across the tip and ring leads

toward the CO (see Figure 155 "Loop start call states - outgoing call to

CO/FX/WATS" (page 596) and Figure 156 "Loop start call connection

sequence - outgoing call to CO/FX/WATS" (page 597)). When the CO

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

Nortel Communication Server 1000

Circuit Card Reference

NN43001-311 01.04 Standard

Release 5.0 23 May 2008