Fiber

Network cabling that uses optical fibers (plastic or glass) to carry information as light instead of as electricity. Fiber-optic cable carries information farther, faster, and more reliably than other types of cable. Fiber-optic cable is much less likely than coaxial or twisted-pair cable to pick up damaging electrical surges, for example from nearby lightning strikes, because the fibers conduct light but not electricity. The Ohio University WAN uses fiber for most of the connections between buildings.