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The difference between RTU and DTU?

Time:2022-01-16 17:37:29 Popularity:704

The difference between RTU and DTU:

RTU = remote terminal unit remote terminal device

DTU==data-transfer unit Data transfer unit

RTU is more complicated than DTU. It has some control functions and can have analog and switch input and output. DTU is relatively simple. If you only need to realize the function of remote data transmission, then only DTU can be used. RTU It is also much more expensive than DTU.

DTU.png

RTU refers to the equipment with switch quantity, analog quantity acquisition, relay output and GPRS remote transmission function.

DTU is a wireless data transmission module, a terminal module that uses 2G, 3G and 4G networks for remote data transmission. Its principle is to package serial data into TCP or UDP packets for remote data transmission.

DTU (2).png

RTU is an analog acquisition terminal module. It is a device that converts analog variables into digital format through A/D after acquisition. DTU can only transmit standard 232 and 485 data, and RTU can only convert analog data into serial data after acquisition. .DTU is data transmission equipment, while RTU is data acquisition equipment. The division of labor between the two is clear and easy to distinguish.

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