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Max:
>If I set up a direct link between computers using RS232 can I cut one of the
>wires in the cable (there are usually 3 in the simplest cable,
>send/receive/ground) to ensure one way communication only?
Generally, no. Most serial communication protocols involve
intermediate acknowledgments or error checking codes to be sent back
to the sender while the transmission is taking place.
You can, of course, have software on one end that does nothing
but send, and software on the other end that does nothing but
receive, but both programs need to be set up to do just that. An
example would be the receiving end running a terminal program in
screen-capture mode, with flow control disabled (no CTS/RTS, no
XON/XOFF), and the sender just spewing out data.
-Alex
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