Nortel Networks 1000 - Manual (Page 508)

508 NT8D14 Universal Trunk card
Figure 136
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 139 "Loop start call states - outgoing call to
CO/FX/WATS" (page 512) and Figure 140 "Loop start call connection
sequence - outgoing call to CO/FX/WATS" (page 513) ). 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 02.06 Standard
27 August 2008
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