[EE] serial multiplexer

Started by Vic Fraenckel March 5, 2005
I am looking for a device that can connect one RS232 port (TX and RX) on an
embedded processor to one of several devices with serial ports and can be
controlled by a couple of I/O bits on the controller. Can this be done?

Any enlightenment will be appreciated.

TIA

Vic
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Does this help?
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> I am looking for a device that can connect one RS232 port (TX
> and RX) on an
> embedded processor to one of several devices with serial
> ports and can be
> controlled by a couple of I/O bits on the controller. Can
> this be done?

Yes. An analog multiplexer can be used to mux the RS-232 level, or a
digital multiplexer to mux the logic level.

Wouter van Ooijen

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