Page 648 of 906 NT8D15 E&M Trunk card553-3001-211 Standard 3.00 August 2005Figure 152E&M Type II signaling patterns – originating party release on a tandem connectionNear end M/SB leadsNear end EA/EB leadsNear end stores office DNDial CO/FX/WATS and office DNCO/FX/WATS end disc first(ground start only)(COS-ans sup)Pseudo-answer supervisionprovided approx. 150 msafter last dial pulseUniversal service providedby far end PBX if originatingend is senderizedStored office DN digitsoutpulsed after GO signal553-AAA1154OpenClosed OpenClosedNear end M/SB leadsOutgoing calls from system (near end)Incoming calls to system (near end)Near end EA/EB leadsLocal end may be arrangedfor IMM, DDL, or WNKFar end seizesOpenClosed OpenClosedGoIdleIdleO/G tietrunk discDial CO/FX/WATSCO/FX/WATSdiscO/G tietrunk discfirstNear endseizesFar end ansFarenddiscfirstFar enddisc StopOrig enddisc firstOrigenddiscCOS-no ans supCO/FX/WATS ansÐ If ground start trunk, outpulsetoward office after grounddetectionÐ If loop start trunk, outpulsetoward office 1 sec laterNote: IMM = Immediate startDDL = Delayed dialWNK = Wink start
