What are the advantages and disadvantages of wired transmission media and wireless transmission media?

1. Wired media: twisted pair, coaxial cable and optical fiber. Wireless transmission media: Microwave, infrared, laser or satellite. 2. The twisted pair is low in price and low in transmission speed; Compared with anti-interference and price, coaxial cable is between twisted pair and optical fiber; Optical fiber has the advantages of small optical signal attenuation, high bandwidth and strong anti-interference ability. Wireless transmission media is an electromagnetic wave that propagates through the atmosphere.

3. The maintenance of wired communication links needs to be checked along the line. When a fault occurs, it is generally difficult to find out the fault point in time. However, wireless data transmission only needs to maintain the data transmission module, and when there is a fault, it can quickly find out the reason and restore the normal operation of the line.