Apparatus for diversity coupling power line signals into a three-conductor power supply network

摘要

The present invention relates to an apparatus for coupling a modem to a power supply network for transferring data via the power supply network, comprising a power connector, which is configured to connect the apparatus to a phase conductor, a neutral conductor and a protective earth conductor of the power supply network, a transformer, comprising a secondary winding, a first primary winding and a second primary winding connected in series to the first primary winding, wherein the apparatus is configured to couple at least in terms of high frequency a secondary transmission channel to two primary transmission channels.