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How to distinguish 3G DTU, 3G RTU and 3G WCTU?
RTU is an analog collector, which collects analog data and converts it into digital data through A/D. Some products have remote transmission function. DTU is a GPRS data transmission module, which transmits data remotely through 2G and 3G networks and supports RS232 and 485 communication. And the latest products developed by WCTU.
It is a device that integrates the functions of DTU and RTU. The function is more powerful, which can not only simply collect analog signals, but also realize logical control. Data can be encrypted. It can be said that WCTU is a device developed by absorbing the essence of DTU and RTU in years of practical use.
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