Generally speaking, the transmission distance of Cat5e network cables should not exceed 100 meters. However, if it is a Cat5e oxygen-free copper wire, it can generally pass 120 meters. Not so good Cat5e network wire transmission length is almost controlled within 80 meters or 100 meters.
The line label of Super Category five network cable is written with CAT5E. The four pairs of twisted pairs in the line are orange, orange, white, green, white, blue, blue and white, brown and white.
The difference between Cat5e indoor network cable and outdoor network cable is:Indoor Cat5e network cable has only one layer of PVC jacket, and the Outdoor Cat5e network cable has two layers of Jacket, which is mainly waterproof.
The Cat5e indoor network cables and outdoor network cables are divided into shielded network cables and unshielded network cables.
The difference is that the shielded cable is divided into a single shield (with a layer of aluminum foil inside) and a double shield shield (with a layer of aluminum foil and a metal mesh inside). The unshielded cable has only 4 twisted pairs. The material looks at Cat5e network cables. The materials of Cat5e network cables are various: four iron, four aluminum, copper clad aluminum, copper clad silver, copper and oxygen free copper. The quality is: four iron and four aluminum <copper package Aluminum <Copper-clad silver <Full copper <Oxygen-free copper four iron Four iron is the worst quality, and now it is basically to be eliminated, but some of the cable will be doped with iron and aluminum, inspection methods.
Use a strong magnet to check whether the wire contains iron. Copper-clad aluminum and copper-clad silver will soften quickly with fire. All copper and oxygen-free copper are scraped with a knife. The whole copper is actually coated with a layer of oxygen-free copper. Therefore, when the color and the surface are different when scraping, the oxygen-free copper does not change color regardless of how many layers are scraped.