Four-Faith protocol converter gateway is an IoT distributed processing unit designed for the wireless remote and large data transmission. Our Interface protocol converter gateway supports IEC101, IEC104, Modbus, DNP3.0, etc. The protocol converter gateway provides the powerful processing ability of data from Ethernet, Standard RS485, Standard RS232, WIFI or other different communication interfaces for different SCADA platforms, Power protection devices, Intelligent equipment, Different management systems etc. The main function of the Protocol Converter Gateway is to process UL and DL data, complete different protocols' forwarding, and achieve transparent transmission of application software communication between different systems and protocols.