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Network access lines how the history of the whole network cable crystal head connection diagram

If you want to set up a local area network, then the network cable must definitely not something, but when the general crystal head cable damage has occurred. So, how to connect the network cable? Once such a network cable head is fast, it is too unnecessary to take it for repair. You can repair it yourself. But when I open it and see so many lines inside, I am dizzy. What is the line order? Is there any situation?.... Don't worry, today's computer Pepsi network Xiaobian will teach you the network cable crystal connection diagram, Xiaobai can easily learn.

First of all, before we make the network cable, we need to prepare a few tools: cable clamp, network cable, crystal head, as follows.

1. A wire crimping plier with 8P slot, as shown in the figure.

2, five types of network cable, which is the most common network cable we use now.

3, RJ-45 plug, also known as the crystal head.

Crystal head

4, network cable measuring instrument

After the network cable is manufactured, it needs to be tested, whether it can be used normally, which requires the use of the network cable measuring instrument It is. The cable gauge is very simple to use. The following is a graphical illustration of how to use it.

PS: In theory, only two crystal heads are needed, just in case, and more. In addition, the above gadgets, you can buy in advance in the computer city or online mall for home use, the price is not expensive, the general crimping tools may send the network cable and crystal head.

Network cable standard line sequence:

Standard 568A: 1 green white, 2 green, 3 orange white, 4 blue, 5 blue white, 6 orange, 7 brown White, 8 brown

Standard 586B: 1 orange white, 2 orange, 3 green white, 4 blue, 5 blue white, 6 green, 7 brown white, 8 brown

Only used on the Internet 1 2 3 6 1.2 uploading 3.6 upload, telephone with 4.5 7.8 is used as power supply.

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The following is a detailed introduction to the connection of the crystal cable head of the lower cable. Now the most commonly used cable five-type twisted pair cable, it There are 2 types of connection, straight line and cross line.

Through line: Both ends are 568B standard, can be used for connection:

PC(computer)———————— —— HUB (hub)

PC(computer)—————————— SWITCH(switch)

PC( computer) & mdash; & mdash; & mdash; & mdash; & mdash; & mdash; & mdash; & mdash; & mdash; & mdash; rOUTER (router)

hUB (hub) & mdash; & mdash; & mdash; & mdash; & mdash; & mdash; & mdash; — HUB (hub) cascade

SWITCH(switch)—————— HUB (hub) cascade

SWITCH (switch) —————— SWITCH (switch) level port

SWITCH(switch)—————— ROUTER (router)

Crossover: One is 568A and the other is 568B, which is used to connect:

PC(computer)——————————PC )

H UB(hub)————————HUB(hub)

SWITCH(switch)——————SWITCH(switch)

ROUTER(router)——————ROUTER(router)

Additional, configure network devices to use reverse line

simple Said! A straight-through line is a line with the same line sequence at both ends, and is used for interconnection between different devices; a cross-line is a line with different line sequences at both ends, and is used for interconnection between devices of the same type.

Network cable crystal head production steps diagram:

2. According to the standard line sequence mentioned above, arrange the network cables well. The possible situation is as follows:

3. Cut the ends of the 8 strands.

4. The end of the crystal head has a plastic spring piece down, with one end of the metal pin up, insert the neat 8 strands into the crystal head, and make it tightly topped.

5. Insert the crystal head into the 8P slot and firmly press the crimping tool!

After the network cable is manufactured, you can also use the network cable detection tool to check whether the production is successful. If it is successful, it can be used normally. Just pick up the cable you made and plug it into your computer. Try it later. You are also a master of network cable!

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1, how to connect the most complete network cable crystal head connection diagram in history

2, network cable crystal head connection diagram in the history of the most complete network cable Law