Re: [Gumstix-users] RS232 Multichannel

[Black, M. <Michael.Black@EssexCorp.com>]

If your devices only respond to unique poll commands you can actually
hook them all up to the same RS232 line.  I've done this before.

But if they all respond to the same command you can't do that unless
they recognize DTR so you can poll them individually. 

If you have a Verdex you might be able to use a couple of these USB
adapters:

http://www.keyspan.com/products/usa49wg -- I'm not sure if the USB
drivers on the verdex can support this thing but it seems generic enough
that it should.
And another
http://www.quatech.com/catalog/usb_2.0.php
I'm sure there are plenty of others too.

Hopefully your data rate isn't too high.
___________________
Michael D. Black
Essex
bl...@es...
-----Original Message-----
From: gum...@li...
[mailto:gum...@li...] On Behalf Of Dante
Sanchez
Sent: Friday, February 08, 2008 11:52 AM
To: gum...@li...
Subject: [Gumstix-users] RS232 Multichannel


Hi,

Does anyone know where I can find a board that I can use to connect up
to 8
RS-232 signals to poll them individually? I would then hook that up to
the
gumstix.

Thank you,

Dante
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