Hello all. I'm searching for a way to transfer both data AND power over a single twisted pair cable. The data itself is a differential RS485 signal from a PIC micro and DS75176 at either end, running at 19200bps. The power is DC 24v, with a maximum current in the area of a couple of Amps.
I've never tried to do this before and searching the internet has revealed nothing, perhaps I'm just not looking in the right places? As usual, all advice/links/circuits much appreciated!
Matthew