| 摘要 |
PROBLEM TO BE SOLVED: To provide a power line communication system that uses a wiring duct system for a power line, the power line communication being capable of suppressing attenuation of a communication signal sent and received between communication devices by suppressing propagation of the communication signal to an electronic device when the electronic device is fitted between communication paths of the electronic device on a wiring duct. SOLUTION: The electronic device 3 is connected halfway on a communication path, so connection portions 11 and 12 serve as branches of the communication path. One signal bypass member 4 for bypassing the branch for one polarity of power supply wring 13 is provided for the electronic device at two places. The signal bypass members 4 are connected to two connection points 41 and 42 before and behind a place on the wiring where the electronic device 3 is connected, respectively. Further, the signal bypass members 4 each have a capacitor 43 as an electric power current non-conduction member which passes the communication signal, but does not pass an electric power current. COPYRIGHT: (C)2010,JPO&INPIT
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