Patent ID: 8452181

Claim:
A combined optical and electrical transmission assembly, comprising: a combined optical, electrical and power cable comprising an optical fiber, electrical wiring and a power line combined therein; and a combined optical and electrical transmission module comprising an electrical-to-optical conversion unit comprising a laser for converting electrical signals to optical signals and a driving IC for driving the laser, and/or an optical-to-electrical conversion unit comprising a photodiode for converting optical signals to electrical signals and an amplification IC for amplifying electrical signals from the photodiode, wherein, before entering to the combined optical and electrical transmission module, power cables branch off from both ends respectively of the combined optical, electrical and power cable, and combined optical and electrical cables, as which the combined optical, electrical and power cable is left by the power cables branching off therefrom, are each connected with the combined optical and electrical transmission module, and the combined optical and electrical transmission module is connected with an electrical cable for transmitting electrical signals with an external device, and wherein the branched power cables are not connected to the combined optical and electrical transmission module.