Shulou(Shulou.com)06/02 Report--

This article will explain in detail the differences between crossed lines and directly connected lines. The editor thinks it is very practical, so I share it for you as a reference. I hope you can get something after reading this article.

The differences between the crossover and the direct connection of the network cable are as follows: 1. The direct connection is that both ends of the same network cable use the same wire sequence, either the 568A standard or the 568B standard, while the cross wire is the two segments of the same network cable that use different wire sequence; 2. The straight line is used to connect the computer and the switch, the router, and the cross line is used to connect the computer and the computer.

The difference between a crossed cable and a directly connected cable is:

1. Direct connection, that is, both ends of the same network cable use the same wire sequence, either the 568A standard or the 568B standard. Cross lines, that is, two segments of the same network cable use different line sequences. One end is the 568A standard and the other is the 568B standard. (568A standard: green white, green, orange white, blue, blue white, orange, brown white, brown, 568B standard: orange white, orange, green white, blue, blue white, green, brown white, brown)

two。 Straight-through lines are used to connect computers to switches (or HUB), routers and switches (or HUB). Crossover lines are used to connect computers to computers, routers and routers.

3. Cross-wire connections are used between devices of the same type, and straight-through lines are used between different types of devices. (PC belongs to layer 3 network layer because of its routing function.)

Extended data:

Network cable is essential to connect to the local area network. There are three kinds of common network cables in LAN: twisted pair, coaxial cable and optical cable. Twisted pair is a data transmission line composed of many pairs of wires. Its characteristic is that it is cheap, so it is widely used, such as our common telephone lines. It is used to connect to the RJ45 crystal head.

There are two standards for twisted pair termination: T568A and T568B, and there are two main connection methods for twisted pair: straight-through cable and crossover cable. Both ends of the crystal head of the straight-through cable follow the T568B standard, each set of twisted pair is one-to-one corresponding at both ends, and those of the same color are consistent in the corresponding slots of the crystal head at both ends. It is mainly used in the switch (or hub) Uplink port to connect the switch (or hub) ordinary port or the switch ordinary port to connect the computer network card. The crystal head of the crossover cable follows 568A at one end, while the other end adopts the 568B standard, that is, the 1,2 of the A crystal head corresponds to the 3,6 of the B crystal head, while the 3,6 of the A crystal head corresponds to the 1,2 of the B crystal head. it is mainly used in the switch (or hub) ordinary port connected to the switch (or hub) ordinary port or network card connected to the network card.

About the network cable cross line and the direct connection line what difference has to share here, hoped that the above content can have the certain help to everybody, can learn more knowledge. If you think the article is good, you can share it for more people to see.

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