Forgive the newbie question... I'm new to digital interfacing.
I want to put together a system that communicates serially through both a radio-modem link and an RS-485 cable link. I would *like* to be able to connect both interfaces to the same serial port, but I'm concerned that one will interfere with the other. If serial data from both the wire link and the wireless link are received at the same time, I'm guessing that the data to the serial port will become garbled...
Since I only have one serial port to play with, I need a little more versatility.
Is there a way to allow two interface devices to share the same serial port? I would *really* like to be able to send the data out on both links simultaneously, but need a way to keep the received data from colliding.