Network cable RJ45 interface pins [easy to understand]

Hello everyone, meet again, I'm your friend Quanstack Jun.

There are two types of network cable connectors:

1. DTE: a terminal device connected to the network, such as a network cable connected to a PC network card
2. DCE: Connection between network devices.For example, a router is connected to a switch, or a switch is connected to a switch

RJ45 connector (crystal head) interface definition

The face with 8 gold-plated tabs is upward, the leftmost is the 1st pin, and the rightmost is the 8th pin:

RJ45 network cable plug line sequence

There are two line sequences for the network cable: T568A and T568B.

Crossover and straight-through cables

Both ends of the direct-connected network cable are connected by T568B, which are used to connect the host and equipment, namely DTE and DCE, such as: computer ←—→ ADSL cat, computer ←—→ LAN port of ADSL router, computer ←—→ hubor switch etc.One end of the crossover cable is connected by T568B, and the other end is connected by T568A, which is used to connect the host and the host, or the device and the device, such as: computer←—→computer, hub←—→hub, switch←—→switch, etc.

Publisher: Full-stack programmer, please indicate the source: https://javaforall.cn/128448.htmlOriginal link: https://javaforall.cn