| 摘要 |
PURPOSE: A system for supplying power for data processing device using TV transmission line is provided to remove power device for the data processing devices inside a communication device box, and to remove wiring/pipe arrangement and facilities equipped to the communication device box from a power source, so that the system simplifies equipment works and is applied to a home network equipment. CONSTITUTION: A TV trunk line device box includes a centralized power supply device, a communication device box(20) and a coaxial cable(3). In the centralized power supply device, an external casing has cable holes. A transformer-rectifier assembly(12) transforms and rectifies utility power entered from a power source to be appropriate for data processing devices. A mixed TV distributor(11) for power mixing has a power inserting terminal mixing power transmitted through a power line(13) from the transformer-rectifier assembly(12), to make TV signals and power simultaneously transmitted to the coaxial cable(3). In the communication device box(20), a TV distributor(21) for power branch branches power and TV signals transmitted from the coaxial cable(3). The coaxial cable(3) transmits the power and TV signals transmitted from the TV trunk line device box to the communication device box(20).
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