Power supply subsystem for powering a node over communication cabling
US7006815B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2004 |
| Grant date | Feb 28, 2006 |
| Priority date | — |
| Expiry date | Jul 19, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/323
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A power supply subsystem for providing electrical power to at least node over communication cabling, the power supply subsystem comprising: a management and control unit; a power supply interface for distributing power into the communication cabling substantially without interfering with data communication; and current limiting circuitry controlling current of the power distributed into the communication cabling via the power supply interface, wherein the management and control unit is operative to interrogate the at least one node to which it is intended to transmit power over the communication cabling in order to determine whether the node's characteristics allow it to receive power over the communication cabling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.