Transmission Media - (6)
Transmission Media - 6 Summary on What we have studied on last tutorial :- A fiber optic cable consist of a centre pure (silica) glass core not much thicker than a human hair through which light signals pass. This cladding is sometimes surrounded by a metal fibers to give extra strength to the cable. In a fiber optic cable the electrical signal is converted into appropriate left signals and transmitted through it. An emitter sends the signals from one end of the cable and the a light sensor (Photo detector ) senses this signals and then converts into its digital equivalent. Two sources of lights : Laser and LED are used for fiber optic cable. In a fiber optic cable, signals can be transmitted in only one direction. Able to carry much more information as compared to copper cable (3.4) Categories of Fiber optic Cable :- Different types of fiber optic cables are available. The two typ...