POWER LINE COMMUNICATION ACCESS POINT, PLC CABINET PANEL USING THE SAME, AND PLC SYSTEM USING THE PLC ACCESS POINT

摘要

A PLC(Power Line Communication) AP(Access Point), a PLC cabinet panel using the AP, and a PLC system using the panel are provided to adopt an infrastructure mode for PLC, thereby avoiding attenuation when a PLC signal passes through the cabinet panel while the PLC signal does not leak through a power line. More than one of HPFs(High Pass Filters)(221,222,...22n) is connected with one of internal power lines(11,12,13,...1n) to block power signals incoming from the power lines(11,12,13,...1n), and passes data signals. More than one of baseband processors(251,252,...25n) individually processes the data signals, and processes channel allocation of subnets corresponding to each of the power lines(11,12,13,...1n). A signal relay unit(230) analyzes the data signals to determine power lines to which the data signals are to be delivered, and delivers the data signals to baseband processors connected to the determined power lines.