| 摘要 |
<p>Fault tolerant topology for passive optical networks essentially based on a ''tree configuration'' with branch points or nodes (16, 17) made up of passive optical splitters, in which each node (16, 17) of a specific level is connected to the same number of nodes (16, 17) of the level immediately below by two or more branches (Rd, Rs) and a supplementary connection (S1, S2...) is provided between each pair of nodes of the same level.</p> |
