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Poster: Casandro Date: Mar 3, 2005 9:31pm
Forum: petabox Subject: Re: Serial console cables?

How about building a little serial port switch. This won't give you continuous access to the serial ports, but with hardware handshaking no messages should be lost.

Alternatively one could build/write a multiport serial port solution. If 300 bits/sec is enought it should be possible to build hardware with lots of serial ports based on the parallel port. Once done, it would definitely be cheaper than a stack of USB serial ports.

Basically you would have an interrupt timer running at several times the baudrate. It polls the state of all serial lines via a relatively simple hardware.
If there's some interrest, I can try to think more about it. I think I have the parts lying around.

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Poster: sxpert Date: Jun 21, 2005 7:54pm
Forum: petabox Subject: Re: Serial console cables?

how about using one of these ?
http://opengear.com/product-cm4148.html