The main function of MWF201 photoelectric converter is to realize the photoelectric conversion of RS-232/RS-485/422 signals. This series of products realizes long-distance transmission through RS-232 or RS-485 or RS-422 through optical fiber. Optical fiber converters use optical fiber as the transmission medium; have the advantages of isolation high voltage, anti-electromagnetic interference, anti-lightning, etc., widely used in various industrial controls, distributed data acquisition and other occasions, especially suitable for power system automation, traffic control and other departments.