I'm interested in using powerline networking to replace wifi bridging in a couple of places. However, so far as I can tell all the available products draw power from the mains they're plugged into. That's a showstopper for me, because short outages are common around here, so all my network gear is supported by UPSes. I assume from what I've read that plugging two of these into the battery-powered side of two different UPSes is not gonna work. So ... has anyone heard of units that draw their power from elsewhere, like maybe PoE?