ADH485 is a non-intrinsic safety to intrinsic safety isolation module, support one Ethernet and one RS485 communication circuit intrinsic safety processing, suitable for coal mine non-intrinsic safety controller (such as PLC module) intrinsic safety communication, built-in photoelectric isolator, 600W surge protector and common mode suppressor, can amplify and isolate RS-485 signals, Increase the communication distance; This product is powered by 24VDC on the non-intrinsically safe side; DIN35mm standard guide rail installation method; The input and output sides are isolated and withstand 1500V.