Use a connector to connect a network cable

Use a connector to connect a network cable

When I went to work today, my colleague said that my network cable was a little short and the crystal head could not reach the main chassis, so I needed to help him connect the network cable.

In the case of network cable connection only, first know the wire connection, the picture is shown as follows:

I. Popularization of some network knowledge

Network cable classification introduction:

568A standard: White, green, white, orange, blue, orange, white, brown

568B standard: White, orange, white, green, blue, blue, green, white, brown

Cross lines are used for devices of the same level, while straight lines are used for different levels.

When both ends of the twisted pair are of the same standard, it is a direct connection, also known as a straight-through line, which is used to connect the computer with the switch, HUB (hub), etc.

When different standards are used at both ends of the twisted pair, it is a cross wire, which is used to connect computer and computer, switch and switch, etc.

RJ-45 foot function (10BaseT/100BaseTX):

1. Transfer data positive Tx+

2. Transfer data negative Tx-

3. Receive data positive Rx+

4. Standby (automatically switch into use when 1236 fails)

5. Standby (automatically switch into use when 1236 fails)

6. Receiving data negative Rx-

7. Standby (automatically switch into use when 1236 fails)

8. Standby (automatically switch into use when 1236 fails)

Note: 4, 5, 7, 8 wires will be used as POE power supply lines if necessary, 4, 5 as a group or 7, 8 as a group

Second, network cable connection

As can be seen from the above RJ-45 pin functions, 1 and 2 are used for sending and 3 and 6 are used for receiving, so when we use wiring sub-connection network cable length, please connect in the following order. Only need to take 4 items (1236)

1. (White Green / White Orange)

2. (green / orange)

3. (White Orange / White Green)

6. (orange / green)

It is recommended to use multi-function sharp-nosed pliers for line pressing.

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