Switched Applications; Data Endpoint Requirements - Avaya 6424D+M User Manual

Appendix D: Applications and Switch Administration
Page D-4
SWITCHED APPLICATIONS A switched application is one in which a connection must be set
RS-366
HSL
V.35
Video
RS-366
HSL
V.35
Data Endpoint
Requirements
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.
DS1
TN767
DCP
TN754
Tone
TN756
Detector
DCP
TN754
DEFINITY G1
FIGURE D-2

Switched Applications

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.
DEFINITY
Switched
DS1
ANN11E
Network
SN270
Tone
SN255
Detector
SN270
DEFINITY G2
Communications System
DEFINITY High Speed Link
User´s Guide
RS-366
DCP
HSL
V.35
Video
RS-366
DCP
HSL
V.35