In one embodiment, a device for enabling communications signals over a medium voltage power line includes a first modem, a second modem, a third modem, and one or more switches. The first modem is electrically coupled to a medium voltage power line and is adapted to receive communications signals from...http://www.google.de/patents/US20060291546?utm_source=gb-gplus-sharePatent US20060291546 - Device and method for enabling communications signals using a medium voltage power line
