Data Transfer Unit (DTU), also known as a "data transmission unit, concentrator, converter, or repeater," typically functions as a router or gateway. It supports multiple industrial protocols (e., MQTT, IEC101, Modbus) for wired input and transmits data to remote locations via wired or wireless. Distribution Automation Terminals (DTU and FTU) by Application (Substation, Pole Mounted Switch, Distribution Transformer, Others), by Types (Distribution Terminal Unit (DTU), Feeder Terminal Unit (FTU)), by North America (United States, Canada, Mexico), by South America (Brazil, Argentina, Rest of. Industrial DTU Data Transfer U nit data transmission unit, also known as "data transmission unit, concentrator, converter, transponder", etc., usually routers, gateways, support a variety of industrial protocols such as mqttiec101modbus and other protocol wired input, Then use wired or wireless. DTU distribution network automation terminal is such an intelligent device, which can greatly improve the efficiency of distribution network management and reduce human errors, and provide timely and accurate monitoring and control of the power distribution system. DTUs are typically installed at conventional substations, outdoor small-scale substations.