DTU (Data Transfer Unit) is a common IoT communication terminal product that functions as a gateway. On one side, it connects various sensors, controllers, actuators, etc. through serial ports or wireless technology. On the other side, it connects to the Internet through WiFi, Ethernet, 2G/3G/4G/5G, NB-IoT, etc., accessing cloud services.
DTU is a ready-to-use product that can be used in conjunction with many sensor products without requiring hardware development capabilities, as simple as configuring a home broadband router.
DTU is widely used in scenarios where sensor data collection and remote control are required. A considerable number of users on the ThingsCloud IoT platform are using DTU access devices. Typically, DTU is mostly used to connect Modbus slave devices through RS485/232/422 ports, such as switch relays, temperature and humidity sensors, various gas sensors, electric energy meters, water meters, PLCs, motor controllers, etc. Additionally, LoRa DTU is also commonly used in scenarios requiring wide coverage, low power consumption, and wireless transmission. The relationship between DTU and sub-devices connected to ThingsCloud is usually as follows:
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