Controlling appliances in each household, and each of the repeaters of the cross-link connector form by the optical fiber in order to implement a home networking system according to the invention being connected to the household appliances and other repeaters, the other side with the consumer electronics a light reception section for the plurality of connectors to the output of each of the second electrical signal for controlling a repeater, the first optical signals received from a repeater of the other side to convert the first electrical signal from the bride and the light reception by demultiplexing the received first electrical signals outputted to the connector, and the multiplexing / demultiplexing circuit for outputting by multiplexing the second electrical signal received from each of said connectors, multiplexed in the multiplexing / demultiplexing circuit second by converting electrical signals to the second optical signal optical transmitter for outputting as a repeater of the other side It includes parts.