Demand: Recently, the house is being renovated, there are many network cables in the weak current box, but there is no crystal head, so I plugged it into the router, bought a pair of network cable pliers, and connected the crystal head to the network cable by myself.
Why should the network cable head be divided into T568A and T568B?
Because in the early days, the network card could not recognize the line sequence of the network cable, so there were two network cable connection methods: parallel lines and cross lines.
Parallel cable: Both ends of the network cable crystal head are made according to the T568B standard, which is used for the connection between different levels of equipment, such as switch to router, switch to computer.
Cross line: One end of the network cable crystal head is T568B, the other end is T568A, this is called a cross line, between the same device, due to the different cables of sending and receiving data, it is necessary to interchange 1, 3, 2, 6, this connection method is mainly used for dual-machine same-level connection, such as computer to computer, switch to switch.
And the current network cards support intelligent recognition, soThe T568B standard is generally used to make network cables。
T568A and T568B sequences
568A: white-green, green, white-orange, blue, white-blue, orange, white-brown, brown
568B: White Orange, Orange, White Green, Blue, White Blue, Green, White Brown, Brown
Parallel:Both ends of the network cable are made into 568B standard, which is called a parallel line. It is used for dual-machine different levels of connection, such as:The switch is connected to the computer。 The switch is connected to the router.
Cross lines:One end of the network cable is made into 568B, and the other end is made into 568A, which is called a cross line. It is used for dual-machine simultaneous connection, such as computer to computer, switch to switch.
Now it's all parallel line practices, and the device can recognize itself.
How to connect the network cable?
As shown in the figure:
(End)
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Posted on 2022-8-29 21:31:37
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Posted on 2022-8-31 11:58:43
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Landlord|
Posted on 2022-9-1 08:27:10
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