There are more fake twisted pairs on the market than real ones, and the fake ones also have the same markings as the real ones. In addition to fake lines, there are many cases in the market where three types of lines are impersonated as five types of lines or super five types of lines. The following is the identification method of network cable:

1, the lines in the three types of lines are two to four, and the lines in the five types of lines are four to eight.

2, the true line of the outer rubber is not easy to burn, and most of the false line of the outer rubber is flammable.

3, false wire at higher temperatures (above 40℃) the outer rubber will become soft, really not.

4, the copper core inside the true wire is pure, soft, ductile and not easy to be pulled.

5. The twisting direction of the network cable is counterclockwise rather than clockwise. Clockwise winding has an effect on speed and transmission distance.

6, the number of laps is not the same when the line in the network cable is wound, because the number of laps is the same, the transmission signal between the two pairs of lines will interfere with each other, making the transmission distance shorter.

7. There is a layer of metal mesh and insulating material between the shielded twisted pair wire and rubber, and the outside of the crystal head is also wrapped in metal.

8, if conditions, you can find 100 meters of twisted pair cable using the "network monitor" in Windows field test, 5 types of line can reach 100Mbps, 3 types of line only 10Mbps.