At 12:36 PM 11/26/97 -0500, you wrote:
>Alessandro Zummo wrote:
>
>> >Why not use the mains supply wires for the network with a powerline
>> >modem circuit. Then you could just add a node by plugging it in a
>> >wall socket.
>>
>> I'm also interested, but how can i drive the powerline?? Where
>> can i get some schematics??
>> --
>
>If you are interested in X-10 system which allows you to use the power
>wiring of your house to communicate between devices, you may look at
>Micromint's page. They offer a chip called PLIX which provides the
>communication interface between a computer and X-10 AC power-line. The
>TW523 module provides the hardware interface.
>
>http://www.micromint.com
>

Also, if anyone is interested in building one of these "powerline"
transceivers, national semi has an ap note on their web page about how to
build a stereo FM transmitter that works over power lines.  For digital
data, one could turn it into an FSK system pretty easily.