电信级以太网交换机的供电机制及实现  

Power Mechanism of Carrier Ethernet Switch and Its Implementation

作　　者：杨博[1,2] 董喜明[1,2] 

机构地区：[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

出　　处：《计算机与现代化》2011年第3期85-88,共4页Computer and Modernization

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。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.

关 键 词：以太网供电 IEEE802.3AF 供电设备 受电设备 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]