To provide an electric light compound harness which can be wired excellently even in a narrow housing space where bending and twisting occur and can attain high speed of communications.

The electric light compound harness comprises a plurality of small-diameter coaxial cables 24, an optical sub-assembly 52 having one optical fiber 25, a photoelectric ferrule 61 connected to the optical fiber 25, and a photoelectric conversion element 62 connected to an electrode of the photoelectric ferrule 61, and a connector 31 having a connecting terminal 41 to which the small-diameter coaxial cables 24 and the optical sub-assembly 52 are connected and which can be connected to a receptacle. In the optical sub-assembly 52, at least the photoelectric ferrule 61 and the photoelectric conversion element 62 are housed in a housing part 51 formed in the connector 31, and an electric connection part formed in the housing part 51 is connected to the electrode, and the electric connection part is conducted to the connecting terminal 41.

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