There is a bare copper wire in the network cable, what is the function of the leakage line?
The twisted pair of STP (shielded twisted pair) has a metal isolation film, which can reduce electromagnetic interference during data transmission, so its stability is higher. STP twisted pair price may be cheaper, a few yuan, 1 meters, expensive may be more than ten yuan, 1 meters.
The copper wire is connected with the iron crystal head shield. The general environment is not connected, but also can be used, but of course, will pose a threat to signal transmission, as the effect can only be seen whether the interference source is serious.
This kind of cable is twisted pair, it is a kind of screen that has shielding layer, the head that has shielded crystal head.
UTP (unshielded twisted pair) does not have this layer of metal film, so its stability is poor, but its advantage is that the price is cheap. The price of the twisted pair of UTP is about 1 meters, and the price is about 1 yuan.(1) no shield jacket, small diameter, save space occupied;(2) light weight, flexible and easy to install;(3) minimize crosstalk or eliminate it;(4) it has flame retardancy;(5) it is independent and flexible, and is suitable for structured cabling.
