a power and signal distribution system comprises a converter unit connected to a plurality of control units . the converter unit and the control units are arranged in areas difficult to access , for instance on the sea bed . the converter unit is connected to a remote monitoring and supplying device via at least one cable connection . each control unit has assigned thereto at least one production apparatus for crude oil or natural gas corresponding gate valves , chokes , biops , actuators . in some embodiments , the power and signal distribution system the converter unit comprises a data separation device and a voltage converter . the converted voltage from the voltage converter is transmitted together with data / signals from the converter unit to at least one of the control units .