The challenge of powering emerging services (optical fiber networks)

Summary form only given. Power supplies for fiber optic networks are discussed. Three ways to provide power in a fiber system are mentioned. Most of these architectures can be implemented in numerous ways. One way to provide power is to extend copper along with the optical fiber, either within the same or an external sheath. This system allows power to be provided by remote or central office terminals. In this scenario, batteries and charges are located in the remote terminal or controlled environment vault. Another method terminates the fiber at the curb, or just short of the living unit and back-feeds power from the subscriber cluster to the pedestal to power the optical network interface and maintain the backup power system. The third architecture extends fiber all the way to the living unit where local power is required for the subscriber's equipment.<>