Enabling Cisco legacy power to support IEEE 802.3 AF standard power
US6912282B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 6, 2003 |
| Grant date | Jun 28, 2005 |
| Priority date | — |
| Expiry date | May 17, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/10
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for enabling Cisco legacy power to support IEEE 802.3 AF standard power. A network power system capable of delivering data terminal equipment power via a media dependent interface includes power source equipment according to Cisco legacy power and at least one powered device according to IEEE standard power. A power compatibility module is inserted between the power source equipment and the powered device to enable the power source equipment to appear according to IEEE standard power and the powered device to appear according to Cisco legacy power. The module includes switches, a DC/DC converter, an IEEE power source equipment circuit, and an isolator. The module optionally includes a user signaling device for communicating operating conditions of the module to a user. The module may be connected to two ports of the power source equipment to supply adequate power levels to the powered device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.