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Nortel Networks 311 사용자 설명서

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페이지 중 1134
770
NT8D15 E and M Trunk card
Table 281
DX signaling - outgoing calls with originating party release
Condition
Current in
signaling lead
State of trunk
detector
Idle
No current flow
High
Seizure
(dial tone from far-end: far-end ready for digits)
Current flow
High
Digits
Current flow interrupted
for each pulse
High
Far-end answers
No current flow
Low
Far-end on hook first
Current flow
High
Network taken down and trunk idled when
near-end goes on hook
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 282
DX signaling - incoming calls with originating party release
Condition
Current in
signaling lead
State of trunk
detector
Idle
No current flow
High
Seizure
(dial tone to far-end: near-end ready for digits)
Current flow
Low
Digits
Current flow interrupted
for each pulse
Low-high-low for each
pulse
Near-end answers
No current flow
Low
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 283
DX signaling - outgoing calls with originating party release on tandem connections
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
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
01.04
Standard
Release 5.0
23 May 2008
Copyright © 2003-2008, Nortel Networks
.