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What is the maximum transmission distance of RS485 cable communication?

written words: [big] [middle] [small] QR code of mobile phone page 2019/9/16     Number of visits:     

The length of RS485 transmission data cable is inversely proportional to the baud rate of data signal. The maximum distance of the basic theory is 1200m, which is harmed by the loss of frame and noise of data signal. The specific application is usually less than 1200m. In the whole process of transmission, the number can be carried out by 8 intermediate relays at most, and the data signal becomes larger, and the basic theory is larger, and the distance is 9600m. If the optical fiber line can be used as the material for a longer distance, a photoelectric converter must be added on both sides of the receiver. The transmission distance of multimode fiber is 5 ~ 10km, and that of single-mode optical fiber can exceed 50km.

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