How To Identify The Quality Of The Network Cable?

1. Identify the stretchability of the skin

From the outside of the network cable, the network cable pairs are basically twisted into regular threads, while the outer skin of the inferior network cable is smooth without any lines.

2. Identify the flexibility of the network cable

Fold the line 180 degrees, then skim it back to see how durable the outer skin is. With a good quality network cable, no matter how folded the outer skin is, it will not be too white. After the poor skimmed back, it was obviously white. The network cable with a good outer skin is not easy to break during the construction process.

3. Identify the winding distance of the network cable

Ordinary twisted-pair cables are connected by four groups of intertwined network cables. In order to minimize the degree of crosstalk between each pair of wires, the wire pairs are often tightly wound together in a counterclockwise direction. Moreover, the winding distance used for each pair of wires should not be the same.

After removing the outer skin of the network cable, I believe you will see 4 pairs of wires. The 4 pairs of wires in the regular network cable will be twisted in a counterclockwise or clockwise direction. The color of the 4 pairs of network cables is standard. The twisted wires are evenly arranged, and the twisting distance is different. The same, but the lay length of each pair of wires is very uniform. In order to save trouble, the 4 pairs of wires are wound in the same direction or even the same winding distance, and some are not twisted at all, so that the signal crosstalk between each pair of wires is very large, which seriously affects the signal transmission. Performance.

4. Identify the conductor in the line

The worst wire is not only thin, but even an iron core (copper-plated on the outside), Xiao Li thinks the easiest way is to test it with a magnet. Normal network cables generally use copper as the transmission medium, and there are strict regulations on the thickness and coating of the copper core. In this comparison, all inferior network cables are made of hair-thin iron wires.

5. Perform a network cable test

None of the identification methods can accurately determine the quality of the network cable 100%. Xiao Li still believes that the most scientific method is testing. If conditions permit, it can be judged with the help of instruments. We use FLUK-TX1800 for testing in accordance with the relevant test standards of TIA Cat5e (Super Category 5 568B).