I heard talk about "channel of data + power line" in the same cable. I am curious to know its operation. Someone would have information (circuits, projects) on the subject?
I found this:
http://computer.howstuffworks.com/bpl.htm hi
check this link please
http://www.echelon.com/products/development/its for Echelon company the #1 company on data communication over power lines using a protocol of theirs named LONTalk protocol
the previous link is for their software and hardware tools used to develop application