FIBER OPTIC CABLING
What are fiber optic cables and how they differ from metal wiring?
Fiber optic connectivity has ushered in a new world of high speed voice, video and data communications. Since the invention of the electromagnet and the telegraph in the 1820s, electrical wiring has utilized copper: high conductivity, high tensile strength and high ductility. Copper is great for electrical applications, but when it comes to network and telecom situations optical fiber wins.
Fiber optic is a technology that uses glass (or plastic) threads (fibers) to transmit data. A fiber optic cable consists of a bundle of glass threads, each of which is capable of transmitting messages modulated onto light waves.