RJ45 is also called crystal head.

-
RJ45 is an important interface part in the network connection. It is a kind of plastic connector that is inserted in a fixed direction and automatically prevents falling off. It is used for network communication. Because it looks like crystal, it is also called crystal head. Mainly used to connect network card ports, hubs, switches, telephones, etc.
​RJ45 is also called crystal head.
When making the crystal head, make the shrapnel of the crystal head face outward, the entrance line is facing down, from left to right, follow the above line sequence, fully insert the line, and then clamp it with the cable clamp.
1. Cross-line connection is used between devices of the same type, and straight-through lines are used between different types of devices;
2. The router and the PC belong to the DTE type device, and the switch and the HUB belong to the DCE type device.
3, RJ45 network connector practice generally by 568A and 568B two standard practices, according to the same standard on the straight line, the different standards are cross lines. No matter how the wiring is done, when the RJ45 line tester is used after the final test, the eight indicators should flash in sequence.
The network cable line sequence is wrong. There are two correct line sequences for the network cable, direct connection and cross line. Most of the current use is straight line, the line sequence is as follows: brown, white brown, green, white blue, blue, white green, orange, white orange. Line order errors can affect data transmission, sometimes you can go online, sometimes the access display is normal, but you can't get online, or simply show that the network is limited. Sometimes different computers connected to the same network can access the Internet, and some can not access the Internet may be the problem. The solution is to change the cable of a normal line sequence, or re-do a correct line of crystal heads. Generally check the crystal head using the line gauge to see if the light is in the correct order.

Yeahui is a connector supplier with 11 years of experience in developing high quality connectors and wiring harnesses. wo have many types of products, including obd connector, circular connector, agricultural connector and so on.We can meet the requirements of various customers. Feel free to learn more about connectors or buy our connectors,looking forward to your message.

评论

发表评论

此博客中的热门博文

What is the Difference Between J1939 Connector Type 1 and 2?

-
图片
  SAE J1939 (hereinafter referred to as J1939) is the recommended standard of the American Society of Automotive Engineers (SAE). It is controlled and communicated by the "Truck and Bus Electrical & Electronics Committee" (Track & Bus Electrical & Electronics Committee). Developed and written by the Track & Bus Control and Communications Network Subcommittee. J1939 has become a recognized industry standard and choice for commercial vehicle diagnostics and data communication heavy, off-highway, truck, bus, ship propulsion, power generation, industrial pumping, construction, and material handling machinery. J1939 is a high-level protocol network (CAN) based on Controller Area. It is widely used by the diesel engine industry to provide diagnostic data such as vehicle engine speed, temperature, oil temperature, exhaust emissions, and other customizable options. J1939 connectors are divided into black and green rubber cores, but do you know the difference between t
阅读全文

Benefits of overmolded connectors and wiring harnesses?

-
图片
What is overmolding? In short, overmolding is an injection molding process in which two or more materials are used to combine a harness wire and a connector to form a single part, and the cable assembly is placed in a mold. In this process, the first material substrate will be covered by other materials. The overmolding process requires the use of insert molding (single injection) or multiple injection molding techniques to cover rigid plastic parts with TPU layers or other overmolding materials. So what are the benefits of the connector and harness overmolding process? Benefits of overmolding connectors and harnesses: 1. Increase the flexibility of the cable harness exit so that most of the movement between the cable harness and the connector occurs at the cable harness exit. 2. Provide abrasion resistance, impact resistance or impact resistance. 3. Fix the cable assembly by sealing the assembly in plastic. 4. Provide 360 degree strain relief and increase tension. 5. Cr
阅读全文

Harness Processing Manufacturing Upgrade

-
图片
In the context of global environmental conservation, new energy vehicles have become an inevitable trend in the development of automobiles worldwide. PwC's first blueprint for the Chinese auto industry, released on December 8, states that China's new energy vehicle sales are far ahead of other markets in the world. With the government's vigorous support for new energy vehicles, China's new energy vehicle era has arrived. Global sales of new energy vehicles reached 500,000 in 2015, of which 330,000 were sold in China, three times the previous year, and far ahead of other markets in the world. Accelerating development, Internet giants and other emerging players are actively entering the market, bringing pressure and shock to traditional car manufacturers and dealers. There is no doubt that new energy and intelligent connected cars have become the mainstream of the automotive industry, and the demand for applicable wiring harnesses will also increase significantly. Au
阅读全文