4G Wireless DTU IOT Cellular Modem With Modbus RTU/TCP Adaptive Function

Parameters of IOT Cellular Modem

• Introduction​ of IOT Cellular Modem

ZHC4921 is an industrial-grade 4G RTU that provides 4 DI, 4 DO, 4 AI and 1 RS485 interface, supports local logic processing operations, automatic acquisition and active reporting, Modbus RTU/TCP adaptation, automatic calibration threshold reporting, dry and wet node IO detection, and support one-to-one, many-to-one network connection.

• Features of
• IOT Cellular Modem

• IOT Cellular Modem ZHC4921 integrates data acquisition and logic control functions, supporting industrial-grade AD acquisition circuit, switching value acquisition circuit and RS485 communication circuit to ensure the functional diversity of the product. At the same time, it is equipped with other high-efficiency, stable and reliable circuits on the periphery, so that this product has the characteristics of stability, anti-interference, short-circuit self-protection, and simple and convenient operation. It is widely used in water conservancy, heat, smart agriculture, environmental protection, new energy monitoring and other industries.