Avaya 6211 Mode D'Emploi
Appendix D: Applications and Switch Administration
DEFINITY
Communications System
DEFINITY High Speed Link
Page D-4
User´s Guide
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SWITCHED APPLICATIONS
A switched application is one in which a connection must be set
up every time there is a need to transmit data. Once the
transmission is completed, the connection is cleared.
up every time there is a need to transmit data. Once the
transmission is completed, the connection is cleared.
Typical switched applications include: videoconferencing, dial-up
Local Area Network (LAN) bridging, batch processing, and dialed
back-up. Switched calls can be routed over the public network
using ACCUNET Switched Digital Service (SDS) or Software
Defined Data Network (SDDN). Or, they can be switched through
a private network made up of switches interconnected with
private T1s. In either the public or private switched configuration,
the data endpoint can initiate a call through the HSL and send the
data over the V.35 interface. An example of switched
videoconferencing is shown in Figure D-2.
Local Area Network (LAN) bridging, batch processing, and dialed
back-up. Switched calls can be routed over the public network
using ACCUNET Switched Digital Service (SDS) or Software
Defined Data Network (SDDN). Or, they can be switched through
a private network made up of switches interconnected with
private T1s. In either the public or private switched configuration,
the data endpoint can initiate a call through the HSL and send the
data over the V.35 interface. An example of switched
videoconferencing is shown in Figure D-2.
RS-366
Video
V.35
HSL
DCP
HSL
DCP
TN754
TN767
TN756
RS-366
V.35
RS-366
V.35
HSL
DCP
HSL
DCP
SN270
ANN11E
SN255
RS-366
V.35
Video
TN754
SN270
DEFINITY G1
DEFINITY G2
DS1
DS1
Tone
Detector
Tone
Detector
Switched
Network
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cc
c
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c
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FIGURE D-2
Switched Applications
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Data Endpoint
Requirements
Requirements
For proper switched operation the data endpoint must support
the Data Terminal Ready (DTR) lead on its V.35 interface. The
DTR lead provides the signal to the HSL that it is ready to receive
or originate a call. Before the HSL can originate (dial) or answer a
call, the DTR lead must be asserted (high) by the endpoint. The
endpoint can also drop the call by turning off the DTR lead.
the Data Terminal Ready (DTR) lead on its V.35 interface. The
DTR lead provides the signal to the HSL that it is ready to receive
or originate a call. Before the HSL can originate (dial) or answer a
call, the DTR lead must be asserted (high) by the endpoint. The
endpoint can also drop the call by turning off the DTR lead.