A measure of the speed of data transfer rate. One million bits per second, a megabit equals one thousand kilobits. A million cycles per second. A network covering a cosmopolitan area that is outside the local exchange carrier's system.
MANs often have very high banwidth through fiber-optic cabling.
Microbending Minute but severe bends in fiber that result in light displacement and increased loss. Most microbending can be avoided by selection of buffer materials and proper cabling, handling and installation techniques. Modal Dispersion Pulse broadening arising from variations in the times that different modes take to travel through a multimode fiber. Mode A lightpath through a fiber. Light has modes in a fiber.