USB cables provide users with a quick and easy way to charge and transfer data to mobile devices. Now, with the development of new solutions for temperature indication, they can guarantee that the process will also be safer. So what is the specific use of USB cables?
The use of USB cables:
1. The USB cable has the function of transmitting power supply, supports energy-saving mode, and has low power consumption.
2. USB cables are also divided into shielded and unshielded, shielded cables have a long transmission distance and are more expensive; Unshielded cables have short transmission distances because they are susceptible to interference, but they are cheap; USB can connect up to 127 devices in series; Supports hot-swappability.
3. USB adopts four-wire cable, two of which are serial channels used to transmit data, and the other two provide power for downstream (Downstream) devices, and for any peripherals that have been successfully connected and mutually recognized, data will be transmitted at the highest rate that both devices can support.
4. The USB cable will automatically dynamically transition from high speed to low speed in the compatible transmission mode according to the peripheral situation and match and lock at the appropriate rate.
USB cables require shielded twisted pair cables in full-speed mode, while low-speed mode allows them to be unshielded and twisted. In addition, the USB protocol stipulates that the length of USB low-speed cable shall not exceed 3 meters, while the length of full-speed cable shall not exceed 5 meters. This is because there is a delay in cable transmission, and there must be no delay too much to ensure a correct response.
