Nortel Networks Circuit Card - Manual (Page 650)

Page 650 of 906 NT8D15 E&M Trunk card
553-3001-211 Standard 3.00 August 2005
Far-end on hook first Current flow High
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 200
DX signaling – outgoing calls with originating party release on tandem connections
(Part 1 of 2)
Condition
Current in
signaling lead State of trunk
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 High
Stop sender No current flow Low
Go sender (universal service provided by far-end
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 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 No current flow High
Table 199
DX signaling – incoming calls with originating party release (Part 2 of 2)
Condition
Current in
signaling lead State of trunk
detector