Well...

if you send the data via an oscillating system. And send the power D.C.
you can split with a center-tapped transformer to separate the A.C. and
D.C. components.

You simply put the power to the center tap, and send the oscillating
signal via the outer end of the transformer. The voltage of the
Oscillating element will be added to the D.C. voltage, which will
be sent via the two wire system (you need a ground) at the other end, you
use another transformer to separate the two signals, and regulate the d.c.
that comes off the centertap.

Your mileage may vary ( Haven't tried it myself yet).



GRAEME SMITH                         email: grysmith@freenet.edmonton.ab.ca
YMCA Edmonton

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