Many friends think how mysterious network cables, facing 8 copper wires, I don't know how to deal with. In fact, it is very simple, there are two types of network crystal head (RJ45), TIA / EIA568A and TIA / EIA568B, which will be specifically introduced below.
· TIA / EIA568B
The most common connection head, facing the crystal head pin, jack down, naming order is 1-8, line sequence color is: orange; orange; green white; blue; blue white; green; brown white; brown
· TIA / EIA568A
Follow the suits 1-8 order, line sequence color is: green white; green; orange; blue; blue white; orange; brown white; brown
Is it very simple, you have to pay attention to the following points:
1 Same-level equipment (electric PC-PC, Hub-Hub, etc.) To use a cross-line connection, it is a net line of 568A, another with 568B
2 Different grade equipment (PC-HUB, PC-SWITCH, etc.) two crystal heads to use the same standard system
3 8 cables work for 1, 2, 3, 6, such as these four, unreasonable, slightly slow or 100%, other four lines from magnetism, long distance (60- 100M) The role is particularly obvious, and the ordinary Cat5E line can carry 1km bandwidth, which is usually used to do 100M, KM basically uses fiber.
4 Do not use inferior crystal (RJ45) heads, in addition to affecting the effects of network card interface equipment
There is so much, you need a network cable to try it, and some of the two sides of the legend can do not believe it. Be sure to do according to the standard, in addition to the effect, it is also very convenient.
