计算机与现代化 ›› 2011, Vol. 1 ›› Issue (3): 85-88.doi: 10.3969/j.issn.1006-2475.2011.03.023

• 网络与通信 • 上一篇    下一篇

电信级以太网交换机的供电机制及实现

杨 博1,2，董喜明1,2   

  1. 1.武汉邮电科学研究院，湖北 武汉 430074；2.光纤通信技术和网络国家重点实验室，湖北 武汉 430074
  • 收稿日期:2010-11-08 修回日期:1900-01-01 出版日期:2011-03-18 发布日期:2011-03-18

Power Mechanism of Carrier Ethernet Switch and Its Implementation

YANG Bo1,2, DONG Xi-ming1,2   

  1. 1. Wuhan Research Institute of Posts and Telecommunications, Wuhan 430074, China;2. State Key Laboratory of Optical-fiber Communication Technologies and Networks, Wuhan 430074 China
  • Received:2010-11-08 Revised:1900-01-01 Online:2011-03-18 Published:2011-03-18

被引次数

6

摘要： 传统以太网都是仅用于传送数据，以太网设备必须自带电池或者外接电源适配器等才能工作，增加了网络布线难度。2003年6月颁布的IEEE 802.3af定义了以太网在数据传输线上同时传送直流电能的标准，既节约资源、简化布线复杂性，又解决各设备制造厂家的兼容性问题。本文在研究IEEE 802.3af中的各个关键技术的基础上，在以太网交换机上实现对受电设备的供电功能。

关键词: 以太网供电, IEEE 802.3af, 供电设备, 受电设备

Abstract: Traditional Ethernet is merely used in data transmission previously, so that the Ethernet device must work with own battery or external supply adapter, which increases the difficulty of wiring work. The standard which Ethernet can also deliver DC power supply in data transmission line is defined in IEEE 802.3af, promulgated in June, 2003, it can not only reduce network construction costs and simplify wiring works, but also resolve the compatibility problem of various vendors equipments. Based on the research on key technologies of IEEE 802.3af, this paper implements the function of supplying power to powered devices.

Key words: power over Ethernet (POE), IEEE 802.3af, power sourcing equipment (PSE), powered device (PD)

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