Intra-chassis protection systems and methods for passive optical network optical line terminals
US9960840B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2014 |
| Grant date | May 1, 2018 |
| Priority date | — |
| Expiry date | Sep 15, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0081
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An optical line terminal is operable in a passive optical network. The optical line terminal includes a chassis. A plurality of optical subsystems are disposed within the chassis. Each optical subsystem is operable to generate optical signals for delivery to a port. Each optical subsystem includes one or more optical switches. When a fault condition is detected at a first optical subsystem preventing the delivery of first optical signals generated by the first optical subsystem to the port of the first optical subsystem, the optical switches switch to deliver second downstream optical signals generated by a second optical subsystem to the port of the first optical subsystem.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.