System and method for providing cascaded optical line terminals (OLTs) in passive optical networks (PONs)
US8244139B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2009 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Mar 15, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0096
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention is a fiber optic data network, such as a passive optical network (PON), which includes a primary sub-network and a secondary sub-network. The primary sub-network may include a primary optical line terminal communicatively coupled to a plurality of primary optical network units. The secondary sub-network may include a secondary optical line terminal communicatively coupled to a plurality of secondary optical network units and to an intermediate optical network unit. The secondary sub-network may be communicatively coupled to the primary sub-network via the intermediate optical network unit, thereby allowing the PON to be configured so that the primary optical line terminal and the secondary optical line terminal are cascaded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.