Wide-band communication network for power line system

摘要

A wide-band communication network connection system (1) which employs a private electric power line (2), specifically used for supplying electric power to an electric system (3) inside a building (4), as a physical transmission means for two-way data communication between a local data communication network (5) located in the same part of the building (4) as the electric system (3), and a main data communication network (6) for supporting wide-band data transmission. <IMAGE>