Ethernet over power: Homeplug

A few weeks ago my father came with a box of hardware that he did no longer use. One of the hardware things was a D-LINE CPL-85 of Dinh-Telecom. It was just a case of plugging in both devices in the power outlet and the connection between my server and the network was there.
This is of course nice, but I wanted to know a little more about the devices.Read more »