Passive optical network structure with high fault tolerance
US5680546A · kind A · utility
16Cited by
11References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 17, 1994 |
| Grant date | Oct 21, 1997 |
| Priority date | — |
| Expiry date | May 17, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0227
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
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 (FIG. 1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.