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Wednesday, August 10, 2011

What is Fiber Optic Cable?

What is Fiber Optic Cable?
In twisted-pair cable and coaxial cable, data is transmitted in the form of electric frequencies. So copper wire has to be protected from water and electromagnetic waves. In fiber optic cable, these types of problems are not occurred.        
The fiber-optic cable  uses light to transmit data. A fiber-optic cable consists of hundreds of thin glass fibers or strands of glass.

Each strand is referred to as optical fiber. Each optical fiber is as a human hair. The glass is an insulating material, it is because these are not affected by electromagnetic waves. Thus, they have much lower data transmission errors.
The data transmission speed is very high because fiber-optic cable uses light to transmit data. The data transmission speed is up to billions bits per second.
The disadvantages of fiber optic cable are:
  • It is more costly and difficult to troubleshoot.
  • It is difficult to install and modify.
Therefore the fiber-optic cable is becoming more popular and replacing all old cable system. Today telephone, banks, and television companies are replacing their existing telephone and coaxial cables with fiber-optic cables.