Automatic system for power and data redundancy in a wired data telecommunications network
US7823026B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2004 |
| Grant date | Oct 26, 2010 |
| Priority date | — |
| Expiry date | Jun 2, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/10
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Redundancy of data and/or Inline Power in a wired data telecommunications network from a pair of power sourcing equipment (PSE) devices via an automatic selection device is provided by providing redundant signaling to/from each of the pair of PSE devices, and coupling a port of one PSE device and a redundant port of the second PSE device to respective first and second interfaces of a port of the selection device. The selection device initially selects one of the two PSE devices and communicates data and/or Inline Power to a third interface of the selection device. A powered device (PD) coupled to that third interface communicates data and/or Inline Power with the selected one of the first and second PSE device through the selection device. Upon detection of a condition, such as a failure condition, the selection device may select the other of the two interfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.