Shulou(Shulou.com)05/31 Report--

This article mainly introduces "what is the network transmission medium of the server". In the daily operation, I believe that many people have doubts about what the network transmission medium of the server is. The editor consulted all kinds of materials and sorted out a simple and easy-to-use operation method. I hope it will be helpful to answer the doubt of "what is the network transmission medium of the server?" Next, please follow the editor to study!

There are two kinds of network transmission media: one is visible, twisted pair (commonly known as network cable), optical fiber, etc., and the other is invisible, transmitting network data in the air through radio waves, microwave, infrared, etc.

1 twisted pair

Twisted pair is one of the most commonly used transmission media, which is composed of two copper wires with insulated protective layer.

There are common Category 5 lines and Category 6 lines, the standard is CAT-5e/6, the transmission rate is 1G, the transmission distance is 100m; the latest Category 7 lines, the transmission rate can reach 10G.

Twisted pair cables use RJ-45 connectors to connect network devices.

In order to send and receive data normally, the pins in the RJ-45 connector must be arranged in a certain line order. Today's network cards support adaptive function, automatically identify line sequence, and there is no need to distinguish between straight-through lines and cross lines.

2 optical fiber

Twisted-pair wires use electrical signals to transmit data, while optical fibers use optical signals to transmit data. The common optical fiber rates are 1G, 2.5G, 10G and 40G. According to the different optical signal transmission modes of optical fiber, it is divided into single-mode optical fiber and multimode optical fiber. Single-mode optical fiber can only transmit light in one mode, which is suitable for long-distance transmission, and the maximum transmission distance can be up to several hundred kilometers. Multimode optical fiber can transmit light in different modes, which is mainly used for short-distance transmission in local area network.

Yellow: single mode fiber

Orange: multimode fiber

Optical fiber connectors include SC, FC, ST and LC. (3) the electromagnetic wave transmitted in free space can be divided into radio wave, microwave, infrared, laser and so on according to the frequency spectrum, and the information is loaded and transmitted on the electromagnetic wave.

In a local area network, only radio waves and infrared rays are usually used as transmission media. The advantage of wireless transmission is that it is easy to install, move and change, and will not be limited by the environment. But the signal is easy to be interfered and stolen in the process of transmission. At this point, the study on "what is the network transmission medium of the server" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.