Power supply for ethernet LAN connected telephone
US6480122B1 · kind B1 · utility
37Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2000 |
| Grant date | Nov 12, 2002 |
| Priority date | — |
| Expiry date | Nov 10, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M19/08
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A powering arrangement for providing power to an Ethernet connected device, comprising a power unit connected via a first terminal to the device and via a second terminal to an Ethernet cable carrying two signal wire pairs and two spare wire pairs. A connection is provided within the power unit for interconnecting the signal wire pairs and a first one of the two spare wire pairs to the device, and a source of power is provided within the power unit connected to a second one of the spare wire pairs from the device for providing power thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.