>From: "Atul Suri" <[EMAIL PROTECTED]>
>Reply-To: "Palm Developer Forum" <[EMAIL PROTECTED]>
>To: "Palm Developer Forum" <[EMAIL PROTECTED]>
>Subject: Serial port multiplexing
>Date: Tue, 07 Aug 2001 17:02:51 -0000
>
>True, cannot do this w/o adding external hardware. I was trying to
>find serial port multiplexers and i couldnot. The option i was
>considering was to find a microcontroller with more than one serial
>port and then program it to switch between the serial ports of that
>controller but life would be much easier if i could find commercially
>available serial port multiplexers.
>
>Thanks,
>
>-Atul
>
>
>
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>please see http://www.palmos.com/dev/tech/support/forums/
If you want to "network" several serial devices together with one as the
MASTER and multiple SLAVES, you can use RS232-RS422 converters. RS422 can
me multi-dropped, has better noise immunity and therefore can go farther
than RS232. You can find 232/422 converters from several suppliers - a good
reference is Black Box www.blackbox.com
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