User guide

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Older models required 9V - 15V. Models are listed on page 28, and you can check the
model of your unit from the label on the bottom of it.
14 1892 1139 - RSX Range of Intelligent Modems User Guide - v7.1 / Nov 2007
Alternatively, you can send single serial bytes (for example, from a terminal) to select a
new channel. See page 18.
Modem parameters are set separately: see page 20.
2.2.1 Programming Adaptor for use with SNx50.exe software
The RSXn50 requires a special adaptor cable between itself and the PC serial port, which
also connects the 5 to 15V DC supply
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. This cable is shown in Figure 12.
Figure 12 - Radio programming adaptor
v The RSXn50 provides true RS232 readback from pin 1, and so should be
compatible with any PC.
2.2.2 Obtaining and Running the Programming Software
v If you have already obtained and installed the software, go to step 3
v The Appendix on page 32 contains a reference covering the functions of the
SXn50.exe software.
.
1. Download the latest version of the programming software SXn50.exe from the
Wood & Douglas site on the internet. The URL (address) is:
www.woodanddouglas.co.uk
(In case of difficulty, contact Sales at Wood & Douglas, contact details on the last