Nortel-networks Circuit Card Bedienungsanleitung Seite 647

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Seitenansicht 646
NT8D15 E&M Trunk card Page 647 of 906
Circuit Card Description and Installation
Figure 151
E&M Type II signaling patterns – originating party release
Near end M/SB leads
Near end EA/EB leads
Idle
Near end
disc first
System
end disc
Dialing
Near
end
seizes
Far end
answers
(ans sup)
Far end
answers
(no ans
sup)
553-AAA1153
Far
end
disc
Far
end
disc
first
Open
Closed Open
Closed
DT
Near end M/SB leads
Outgoing calls from system (near end)
Incoming calls to system (near end)
Near end EA/EB leads
Idle
Near end
disc first
Near end
disc
Far
end
seizes
Near end
answers
(COS-ans sup)
Near end ans
(COS-no ans sup)
Far end
disc
Far end
disc first
Open
Closed Open
Closed
Dialing
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