有源以太网解决方案—Ameya360电子元器件平台

Release time:2019-10-12
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source:Ameya360
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1、 前言

POE (Power Over Ethernet) 指的是在现有的以太网 Cat.5 布线基础架构不作任何改动的情况下,在为一些基于 IP 的终端(如 IP 电话机、无线局域网接入点 AP、网络摄像机等)传输数据信号的同时,还能为此类设备提供直流供电的技术。POE 技术能在确保现有结构化布线安全的同时保证现有网络的正常运作,最大限度地降低成本。

有源以太网解决方案—Ameya360电子元器件平台

PoE 也被称为基于局域网的供电系统 (PoL,
Power over LAN )或有源以太网 ( Active Ethernet),有时也被简称为以太网供电,这是利用现存标准以太网传输电缆的同时传送数据和电功率的最新标准规范,并保持了与现存以太网系统和用户的兼容性。IEEE 802.3af 标准是基于以太网供电系统 POE 的新标准,它在 IEEE 802.3 的基础上增加了通过网线直接供电的相关标准,是现有以太网标准的扩展,也是第一个关于电源分配的国际标准。

1、 方案概述

Ameya360 有源以太网解决方案利用现存标准以太网传输电缆的同时传送数据和电功率的最新标准规范,并保持了与现存以太网系统和用户的兼容性。IEEE 802.3af 标准是基于以太网供电系统 POE 的新标准,它在 IEEE 802.3 的基础上增加了通过网线直接供电的相关标准,是现有以太网标准的扩展。


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