Operation, administration and maintenance systems of the optical fiber loop

摘要: The authors discuss the concept of operation, administration, and maintenance (OA&M) systems transmission media network in large single-mode (SM) optical fiber loops to be constructed next century. structure efficient OA&M for large-scale networks is described. loop system has three layers. functions these layers are investigated. characteristics outlined. sensors matrix switches, it can remotely automatically operated, administered, maintained through a remote switching module, supervisory an automatic testing module. As first stage introduction systems, been developed. This realize tests in-service measurement fibers. >