Some up-to-date microcomputer-based optical fiber isolated remote control systems are studied

and a kind of design of high electric potential dual optical fiber isolated microcomputer controlled system with interruption communication is suggested.

An equipment of this design has been fabricated and been used in monitoring and manipulating parameters of ion source power supplies in the EMIS' (Electro-Magnetic Isotope Separator) ion implanter. The results of tuning increment and output stability within 8 hours are both about 0.024%FSR.