Electrohome VistaGraphX 5000, User Manual, Page: 20 / 116

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Note: PC software is required for computer control. Contact your dealer or
Electrohome for details.
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In rare instances, some computers can provide RS-422 serial communications
(generally through a plug-in adapter or external converter) rather than the typical
RS-232 found on most computers. RS-422 communications occur at a higher
voltage level than RS-232 and are especially useful for distances greater than
600 feet. The projector’s RS-422 port is permanently set at 9600 baud.
If you wish to control the projector with a computer having RS-422 capability,
connect the computer to the projector’s RS-422 port instead of the port labeled
“NETWORK IN”. Again, use RS-422 only if you are certain that your computer
has RS-422 capability (consult your documentation). See Figure 2-16.
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You may wish to use one or more external Marquee switchers or third-party
switchers in order to significantly increase the number of sources you can use.
Connect an RS-232 serial communication cable between the switcher and the
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