| 以太网供电技术与实现 |
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| 引用本文： | 白占元,徐皑冬,谭彩虹,张昕凯.以太网供电技术与实现[J].仪器仪表标准化与计量,2004(3):27-30. |
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| 作者姓名： | 白占元 徐皑冬 谭彩虹 张昕凯 |
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| 作者单位： | 中科院沈阳自动化所自动控制系统研究室,沈阳市,110016 |
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| 摘 要： | 本文对IEEE802.3af-2003标准作了简单的介绍,该标准定义了以太网供电技术,众多低功耗以太网设备将从该技术中获益。该标准介绍了两种供电方式,即端跨式供电方式和中跨式供电方式。文中对现有的几种以太网供电方案和芯片特性做了介绍和分析,这对于针对特定的以太网供电系统的方案选择是非常有用的,另外还结合基金会现场总线HSE仪表供电方面的应用,重点介绍了其中的一种实现方式。
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| 关 键 词： | IEEE802.3af-2003 以太网供电 端跨式供电 中跨式供电 |
Realization of Power over Ethernet Technology |
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| Bai Zhanyuan,Xu Aidong,Tan Caihong,Zhang Xinkai.Realization of Power over Ethernet Technology[J].Instrument Standardization & Metrology,2004(3):27-30. |
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| Authors: | Bai Zhanyuan Xu Aidong Tan Caihong Zhang Xinkai |
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| Abstract: | This paper introduces a newly approved specification called IEEE802.3af-2003 which defines the PoE(Power over Ethernet) method, and a lot of low-power Ethernet equipments will benefit from it. It introduces twoways to power, endspan and midspan. Some PoE design and chip feature are also described and analyzed in thispaper which makes it helpful to choose the blueprint for a special PoE system. Besides, it emphasizes the realizationof this technique for FF HSE instrument. |
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| Keywords: | IEEE802 3af-2003 PoE Endspan Midspan |
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