Multi-Tech Systems MT56DSU-S - Manual (Page 29)

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Appendix
Appendix A - Application Examples
Introduction
This section illustrates several types of applications in which the MT56DSU-S is typically used. These types
include:
•
Local Area Data Set
•
DDS point-to-point application
•
DDS multipoint (polled) application
Local Area Data Set Application
In this application, two pairs of wires provide the connection between two MT56DSU-S devices. The two pairs
can be up to the equivalent of 3 miles of AWG #26 wire at 56 Kbps, or longer for subrate applications.
The figure below depicts a typical Local Area Data Set application.
DTE
Up to 3 miles
of AWG 26 wire
@ 56 Kbps
DTE DSU DSU
(Requires two pairs
of interconnection wires)
Figure A-1. Local Area Data Set Application
DDS Point-To-Point Application
In this application, the MT56DSU-S provides the interface between the DDS line and the DTE at your site.
Your network provider will provide (at your request) a DDS line connecting the desired locations. The figure
below depicts a sample DDS Point-to-point application.
DTE
DDS
Network
DTE DSU DSU
Figure A-2. DDS Point-to-Point Application