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Method and device of power over Ethernet

A technology of a power supply method and a power supply device, which is applied in the field of Ethernet, can solve problems such as inability to provide power supply and identification, and achieve the effects of promoting application and improving power supply energy efficiency

Inactive Publication Date: 2012-09-12
XIN YU CONNECT PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Through this power supply method, it can be found that if a PSE is connected to multiple powered devices, the PSE will not be able to identify whether the connected device is a PD, so it will not be able to provide power
That is to say, in the existing POE system, one PSE can only supply power to one PD

Method used

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  • Method and device of power over Ethernet
  • Method and device of power over Ethernet
  • Method and device of power over Ethernet

Examples

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Embodiment Construction

[0030] In order to make the object, technical solution and advantages of the present invention clearer, various embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. However, those of ordinary skill in the art can understand that, in each implementation manner of the present invention, many technical details are provided for readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in each claim of the present application can be realized.

[0031] The first embodiment of the present invention relates to a method for Power over Ethernet, the specific process is as follows figure 1 shown.

[0032] In step 101, the PD inputs the network port through the POE, and obtains current from the first PSE. Specifically, as figure 2 shown, the external first PSE (i.e. ...

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Abstract

The invention relates to the Ethernet technology and discloses a method and a device of power over Ethernet. A PD (powered device) is used to input power through a POE (power over Ethernet) port. Electricity is obtained from external PSE (power sourcing equipment). The obtained electricity is supplied to a terminal device and at least one second PSE. The PD of the POE port is connected with the second PSE and the second PSE supplies power to the PD. By means of cascade PSE, one single external PSE can not only supply power to the PD which is connected with the PSE through the POE port but supply power to one or multiple sequential cascade PDs, so that power supply efficiency of the PSE is enhanced effectively. The second PSE can obtain electricity from the POE port directly so that efficiency of energy conversion is further enhanced.

Description

technical field [0001] The invention relates to the Ethernet technology, in particular to the Ethernet-based power supply technology. Background technique [0002] Power Over Ethernet (POE for short) refers to powering some IP-based terminals (such as IP phones, wireless LANs) without any changes to the existing Ethernet Cat. access point AP, network camera, etc.) while transmitting data signals, it can also provide DC power supply technology for such devices. POE is also known as local area network-based power supply system (POL, Power over LAN) or active Ethernet (Active Ethernet), which is the latest standard specification for transmitting data and electrical power while using existing standard Ethernet transmission cables, and maintains the Compatibility with existing Ethernet systems and users. [0003] A complete POE system includes two parts: Power Sourcing Equipment ("PSE" for short) and Powered Device ("PD" for short). The PSE device is a device that supplies pow...

Claims

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Application Information

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IPC IPC(8): H04L12/10H04L12/28
Inventor 李晓东刘武蔡震
Owner XIN YU CONNECT PTE LTD
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