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You may wish to use a computer rather than a keypad for controlling the
projector and for performing other special functions. From most computers,
connect an RS-232 serial communication cable between the computer and the
projector serial port labeled "NETWORK IN" (Figure 2-17). Then set the
projector baud rate to match that of the computer. Changing the baud rate is
described in 3.7, Adjusting and Checking System Parameters.
NOTE: In rare instances, some computers can provide RS-422 serial
communications. See The RS-422 Port, below.
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Note: PC software is required for computer/serial control. Contact your dealer
for details.
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Some computers can provide RS-422 serial communications (usually through a
plug-in adapter or external converter) rather than the RS-232 typically found on
most computers. RS-422 communication has differential transmits and receives
and is generally better suited for long distances than is RS-232 communication.
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 2-18.
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