Data transmission is migrating from copper to fiber optic conductors. Network managers know they have to react fast but don't know how to proceed. Even the most sophisticated are unfamiliar with the fiber components their systems will be handling over the next 18 months, and there's almost no field experience to turn to. Held explains, in the language network people are used to hearing, how fiber-based components will work in the environment you've already got, and how they will alter the environment for better or worse.