Ocean observatories provides continuous power and data bandwidth for various kinds of physical

chemical

geological and biological sensors by hybrid power/optical fiber cables

which is new important way for ocean research recently.Present total configuration of the control system and the design of hardware and software system of the significant science and technology infrastructure advance research project"South China Sea Subsea Demonstrated Observatory ".The experimental results prove that the system can meet the requirements of transmitting video signals and datas by optical fibers

monitoring and controlling the security of system such as insulation and leaking.