Bi-directional chaining of network access ports
US6680904B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1999 |
| Grant date | Jan 20, 2004 |
| Priority date | — |
| Expiry date | Dec 27, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5627
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Network access apparatus includes first and second master units, each having a physical interface to a packet-switched network. A plurality of slave units, each slave unit having one or more ports to respective subscriber lines, are linked by a plurality of physical interface lines in one or more daisy chains, in which the slave units are mutually connected in series by the physical interface lines therebetween. Each daisy chain includes at least a first slave unit connected by one of the physical interface lines to the first master unit and a last slave unit connected by another of the physical interface lines to the second master unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.