Introduction to network interface RJ45:
RJ45 interface: It belongs to the connector, and the structure is composed of a plug (connector, crystal head) and a socket (module). The plug has 8 grooves and 8 contacts. It is a network signal connector used in network equipment.
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The difference between RJ45 interface and RJ11 interface:
RJ45 interface is used for network signal, RJ11 is used for telephone signal and fax signal. The former has 8 contacts, the connected network twisted-pair cable has 8 wires, and the latter has 4 pins and 4 contacts. The two are very similar in appearance. The former is larger and the latter is slightly smaller. The most accurate distinction is based on the number of contacts.
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RJ45接口产品应用：
RJ45接口，又名网络接口。应用范围包含内部局域网、对外网络连接等范围。常见的RJ45接口产品有：网络服务器、路由猫、集线器、个人PC终端、打印机等设备。
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RJ45 interface industry application:
The RJ45 interface is most used in the network equipment manufacturing industry, computer PC manufacturers, network printer equipment manufacturers, and network system installation architecture industries. In the former, the RJ45 interface will be used in the finished product, and some of the former's finished products will be used in the post-built network environment.
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网络电商时代RJ45与RJ11之间的互补：
RJ45接口的广泛应用推动了网络电商的发展与壮大，而电商之前的一个大范围销售渠道为电销即电话销售。电商时代信息通过平台与在线沟通传递出更准确、清晰、直观的产品，弥补后者语言描述给人造成的空洞。
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Various types of products from RJ45 interface manufacturers:
1. Routine.
2. With light without light.
3. Twin RJ45 interface.
4.2*4 RJ45 interface.
Other customized RJ45 interface.
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RJ45 wiring diagram:
T568A: ① white-green, ② green, ③ white-orange, ④ blue, ⑤ white-blue, ⑥ orange, ⑦ white-brown, ⑧ brown
Formula 1: Green, blue, orange, brown, light color first, swap between three and five
Formula 2: White green green, white orange blue, white blue orange, white brown brown
T568B: ① white-orange, ② orange, ③ white-green, ④ blue, ⑤ white-blue, ⑥ green, ⑦ white-brown, ⑧ brown
Formula 1: Orange, blue, green, and brown, light color first, swap between three and five
Formula 2: White orange orange, white green blue, white blue green, white brown brown
