770 NT8D15 E and M Trunk cardTable 281DX signaling - outgoing calls with originating party releaseConditionCurrent insignaling leadState of trunkdetectorIdle No current flow HighSeizure(dial tone from far-end: far-end ready for digits)Current flow HighDigits Current flow interruptedfor each pulseHighFar-end answers No current flow LowFar-end on hook first Current flow HighNetwork taken down and trunk idled whennear-end goes on hookNo current flow HighNear-end on hook first, network taken down Current flow LowFar-end on hook, trunk idled No current flow HighTable 282DX signaling - incoming calls with originating party releaseConditionCurrent insignaling leadState of trunkdetectorIdle No current flow HighSeizure(dial tone to far-end: near-end ready for digits)Current flow LowDigits Current flow interruptedfor each pulseLow-high-low for eachpulseNear-end answers No current flow LowFar-end on hook first Current flow HighNetwork taken down and trunk idled No current flow HighNear-end on hook first, network taken down Current flow LowFar-end on hook, trunk idled No current flow HighTable 283DX signaling - outgoing calls with originating party release on tandem connectionsConditionCurrent insignaling leadState of trunkdetectorIdle No current flow HighSeizure (far-end ready for digits) Current flow HighDial CO/FX/WATS Current flow interruptedfor each pulseHighNortel Communication Server 1000Circuit Card ReferenceNN43001-311 01.04 StandardRelease 5.0 23 May 2008Copyright © 2003-2008, Nortel Networks.
