Nortel Networks 311 User Manual
Operation
761
Condition
Current in
signaling lead
signaling lead
State of trunk
detector
detector
Network taken down and trunk idled
No current flow
High
Near-end on hook first, network taken down
Current flow
Low
Far-end on hook, trunk idled
No current flow
High
Table 275
DX signaling - outgoing calls with originating party release on tandem connections
DX signaling - outgoing calls with originating party release on tandem connections
Condition
Current in
signaling lead
signaling lead
State of trunk
detector
detector
Idle
No current flow
High
Seizure (far-end ready for digits)
Current flow
High
Dial CO/FX/WATS
Current flow interrupted
for each pulse
for each pulse
High
Stop sender
No current flow
Low
Go sender (universal service provided by far-end
PBX if originating end is senderized)
PBX if originating end is senderized)
Current flow
High
CO/FX/WATS offices ready for digits
Stored Office DN digits
Current flow interrupted
for each pulse
for each pulse
High
Outpulsed
No current flow
Low
Far end answers
No current flow
Low
Far end on hook first
Current flow
High
Near end on hook, network taken down, trunk
idled
idled
No current flow
High
Near end on hook first, network taken down
Current flow
Low
Far end on hook, trunk idled
No current flow
High
Table 276
DX signaling - incoming calls with originating party release on tandem connections
DX signaling - incoming calls with originating party release on tandem connections
Condition
Current in
signaling lead
signaling lead
State of trunk
detector
detector
Idle
No current flow
High
Seizure
(Can be arranged for IS, DD, or WS) (near-end
ready for digits)
(Can be arranged for IS, DD, or WS) (near-end
ready for digits)
Current flow
Low
Dial CO/FX/WATS and office DN
Current flow interrupted
for each pulse
for each pulse
Low-high-low for each
pulse
pulse
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
01.04
Standard
Release 5.0
23 May 2008
Copyright © 2003-2008, Nortel Networks
.