Data transmission system utilizing power line

作者: Yoshiyuki Komoda , Yoshiharu Suzuki , Osamu Tanaka , Hitoshi Fukagawa

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摘要: A data transmission system utilizing a power line comprises transmitter (1), receiver (2) and repeater (5) coupled to (3). Control including start code in the form of high frequency signal is transmitted from (1) superposition on an alternating current commercial supply using line. The receives control transmitter, thereby store memory responsive code. then read after lapse predetermined period time retransmitted level. data, apparatus being controlled such as relay, whereupon same transmits return manner representing state thereof. transmitter.