What Does The Twist In The Cable Do?

2023-05-24 294

The different pitch of each pair of wires is used to distinguish the magnetic field effect of each pair of wires in the transmission process and reduce the influence between adjacent pairs of wires. Twisted pair is needed to avoid the effect of cross winding.


When the transmission line has several pairs of wire pairs (twisted pair is four pairs of wire pairs) and the transmission line is long, because the loop area formed by each pair of lines is too large, the crosstalk and external interference between the lines is very serious. In order to reduce the cross-talk and external interference between the line pairs, only the "cross" technology can be used, that is, parallel transmission line pairs are twisted to a certain degree of tightness. In this way, the loop formed by each pair of lines can be divided into several small loops, and the crosstalk and interference generated in each loop can cancel out part of each other, thus reducing the effect of crosstalk and interference. Therefore, the tighter the kink of each pair of twisted pairs, the more uniform the torsion distance, the greater the difference between the four pairs of twisted pairs, the stronger the low-frequency anti-interference ability, and the smaller the internal crosstalk. Yeah, and the performance of the data transfer.