PASSIVE OPTICAL NETWORK STRUCTURE WITH HIGH FAULT TOLERANCE

摘要

topology insensitive passive optical network failures, mainly based on a 'tree' configuration consisting of nodes or branching points (16, 17) composed of passive optical splitters, each node (16, 17) of a particular level is. the same number of nodes nectu00e9 (16, 17) of the next lower level by at least two branches (rdrs), and a further connection (s1, s2) is located between each pair of nodes of the same level.