网线知识全接触!（Network knowledge, full contact!）.docVIP

网线知识全接触!（Network knowledge, full contact!） Network knowledge, full contact! In the multimedia, all kinds of audio and video technology is widely used today, the user for the network requirements are higher and higher, the amount of data transmission is also becoming more and more big. In this environment, as the carrier of data transmission transmission medium becomes more important, when enterprise network construction, network cabling needs to build a powerful and safe and effective foundation. Therefore, in the network wiring, it is very important to understand all kinds of network transmission media. Today, I will take you to understand the network transmission medium (wired media). In the computer network wiring, cable and wireless medium can be divided into two kinds of medium, and the cable medium is the main transmission medium computer network, it can be divided into copper medium (twisted wire and coaxial cable) and optical media two, the wireless medium is an effective supplement to wired medium, has been widely used in not suitable for wiring network. Lets take a look at each of these wired transport media. Copper medium: Copper medium is an electrical transmission medium is widely used in computer network, there are two kinds of twisted wire and coaxial cable, now the new construction of computer network are basically in the twisted pair as a star topology network transmission medium, and coaxial cables in the computer network gradually exit the market. Most of the current application scene is known as the cable TV network, cable TV cable home is thinnet. 1, twisted pair (twisted-pair cable) Twisted pair is a transmission medium used in most star topology in a computer network, is composed of eight copper wire, in order to reduce the mutual interference of electromagnetic signals, each two according to a certain density tangle together. In this way, when transmitting an electric signal, the waves produced by each other can cancel each other, and the int