Nortel Networks Circuit Card 311 - Manual (Page 592)

592 NT8D14 Universal Trunk 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
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