摘要
对基于IEEE802.3af以太网供电工业标准的以太网供电系统(PoE)的工作原理进行了详细的介绍,并简单介绍了以太网供电技术标准制定方面的一些新进展。
Power Over Ethernet technology allows Ethernet appliances to receive power as well as data over existing LAN cabling even without needing to modify the existing Ethernet infrastructure. This article gives a detailed explanation about the principle of the PoE system based on IEEE industrial standard 802.3af.
出处
《仪表技术》
2007年第4期54-56,共3页
Instrumentation Technology
关键词
以太网供电
供电设备
用电设备
power over ethemet ( PoE )
power sourcing equipment ( PSE )
power device (PD)