以太网供电技术及其实现  

Power-over-Ethernet technology and its implementation

作　　者：沈昊[1] 黄成军[1] 丁丁[1] 

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200030

出　　处：《电力自动化设备》2004年第9期35-37,共3页Electric Power Automation Equipment

摘　　要：以太网供电技术即通过双绞线4对电缆即可直接提供电源并传输数据。介绍了基于IEEE802.3af国际标准的以太网供电解决方案,阐述了采用德州仪器(TI)公司的供电设备电源管理器芯片TPS2383和用电设备的电源接口芯片TPS2370实现以太网供电PoE(PoweroverEthernet)系统的总体结构和特点、硬件的基本框架和各部分功能与实现。PoE(Power over Ethernet) is the technology used for both power supply and data transfer over 4 twisted pairs. With the approval of IEEE 802.3af,PoE is used widely in different network-based products because of its conveniency and low-cost. Using power sourcing equipment power manager TPS 2383 and powered device power interface switch TPS 2370 produced by TI Co.,a solution of PoE based on IEEE 802.3af is introduced,including system structure,features,HW frames,functions and their implementation.

关 键 词：以太网供电 网络 电缆 

分 类 号：TP393.11[自动化与计算机技术—计算机应用技术]