Specifications

2-44
Reference Guide
Model No.
Running Head
ATM Server Card Applications
2.9.2 Interactive Distance Learning/Tele-Medicine
The integrated access systems’ integrated multi-service capabilities supports interactive
distance learning applications where the central site and the major educational centers are
connected through an ATM network and the remote sites are accessed via leased T1/E1 lines.
The video stream (TDM traffic) from the central site is adapted to ATM by the ATM server
and multi-cast to the sites on the ATM network as shown in Figure 2-28. The ATM servers
located at the Major University locations convert the video from ATM to TDM traffic and pass
it on to remote sites over leased T1/E1. The ISDN PRI server is utilized in conjunction to
connect the remote sites to the video conferencing network over T1/E1 leased lines. The entire
network is managed from a central network management system.
The same network structure is deployed effectively in a Tele Medicine application in which
doctors from central medical centers can exchange patient information, X-rays etc. with
remote hospitals and provide remote diagnosis.
Figure 2-28. Interactive Distance Learning Application
OC3c/STM1
OC3c/STM1
DS3 ATM
Video Conf
System
RS366
V.25
DS3 ATM
DS3 ATM
Video Conf
System
RS366
V.25
Video Conf
System
RS366
V.25
T1/E1 Leased Line
Video Conf
System
RS366
V.25
T1/E1 Leased Line
Video Conf
MCU
PRI
PRI
Central Site
Major University
Major University
Remote Campus
Remote Campus
Network Management System
IAD
IAD
IAD
IAD
IAD