Design and Application of USB Long-haul Transmission Based on CH317

The length of the traditional USB mouse and keyboard transmission lines is less than two meters, which can not meet the needs of long-distance data acquisition and transmission. In order to solve the short distance problem of USB signal transmission, this paper proposes a scheme based on USB extender control chip. The program can meet the 100-meter USB long-distance transmission distance, has been used in a type of measurement and control computer, the test system is stable and reliable.