David VanHorn email (remove spam text)
At 03:56 PM 11/27/01 -0600, Dale Botkin wrote:
>On Tue, 27 Nov 2001, David VanHorn wrote:
> > Does anyone know where I could find interface information to enable using
> > one of these cards with a micro?
>I'm looking too, let me know what you find and I'll do the same. Just to
>show you how warped I've become, I found out it will be a major pain in
>the whatever to run Cat5 wire to the bedrooms, so I'm thinking a better
>intercom system might be VoIP using 802.11b PCMCIA cards... digitize the
>voice, packetize it and some other trivial stuff like button/LED status,
>shuttle it around in UDP packets. OK, so does contemplating this rather
>than stringing wire sound TOO lazy, or what?
Hmm.. I think you need an experienced installer.
If you have a basement, it's a one-afternoon job.
If you have an attic, it's a messy hot one afternoon job.
You still have to power the ends, afterall.
If the power comes from the AC line, then carrier current looks good to me.
200-300kHz matched to about 2 ohms impedance on the power lines.
Dave's Engineering Page: http://www.dvanhorn.org
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