Inspection device and method for powered devices in a power over Ethernet system
US10142116B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2016 |
| Grant date | Nov 27, 2018 |
| Priority date | — |
| Expiry date | Feb 13, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/3209
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An inspection device to determine whether a device connected to a Power over Ethernet system is suited for being powered, is configured to apply an inspection signal to the device and to measure a response signal thereto. The inspection signal includes a first, second, third and fourth voltage, wherein the first voltage and the third voltage are substantial the same and the second voltage and the fourth voltages are substantial the same, and an application period for applying the fourth voltage is sum of the application period for the second voltage and an extension period. The inspection device determines that the device is not suitable for being powered if a response signal exceeds predetermined ranges. A method to perform these inspections is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.