Optical fiber loops and maintenance support systems for subscriber network

摘要: The authors describe the configuration of fiber-optic subscriber network introduced in NTT and its operation support systems. is currently constructing a where optical fiber cables are laid loops fibers star configurations. Such can ensure high reliability security for each customer, as well flexibility with respect to randomly arising demands. Thus, it considered be adequate network. also introducing various systems large-scale single economically operated maintained. These described. >