科技创新导报
科技創新導報
과기창신도보
Science and Technology Innovation Herald
2015年
21期
59-61
,共3页
局域网络%脉冲变压器%以太网供电%电磁兼容性%类非屏蔽双绞线
跼域網絡%脈遲變壓器%以太網供電%電磁兼容性%類非屏蔽雙絞線
국역망락%맥충변압기%이태망공전%전자겸용성%류비병폐쌍교선
Local Area Network (LAN)%Pulse Transformer%Power over Ethernet (PoE)%Electro Magnetic Compatibility (EMC)%Unshielded Twisted Paired catalogue5 (UTP Cat5)
以太网供电(PoE)是利用以太网中传输高速网络信号的5类线来输送直流电,取消上网链接的终端要使用的电源,既可以节约成本,又可以对用电设备通过软件来控制,达到绿色环保的目的.但是,在原有的局域网(L A N)线上加入了直流电流后,多数网络设备制造商对其中网络变压器(LAN transformer)的选择认识不足,在满足直流电流加载功能的同时,损伤了电磁兼容(EMC)能力,故此,导致网络链接过程中的断续问题,这就是本文担忧之所在.
以太網供電(PoE)是利用以太網中傳輸高速網絡信號的5類線來輸送直流電,取消上網鏈接的終耑要使用的電源,既可以節約成本,又可以對用電設備通過軟件來控製,達到綠色環保的目的.但是,在原有的跼域網(L A N)線上加入瞭直流電流後,多數網絡設備製造商對其中網絡變壓器(LAN transformer)的選擇認識不足,在滿足直流電流加載功能的同時,損傷瞭電磁兼容(EMC)能力,故此,導緻網絡鏈接過程中的斷續問題,這就是本文擔憂之所在.
이태망공전(PoE)시이용이태망중전수고속망락신호적5류선래수송직류전,취소상망련접적종단요사용적전원,기가이절약성본,우가이대용전설비통과연건래공제,체도록색배보적목적.단시,재원유적국역망(L A N)선상가입료직류전류후,다수망락설비제조상대기중망락변압기(LAN transformer)적선택인식불족,재만족직류전류가재공능적동시,손상료전자겸용(EMC)능력,고차,도치망락련접과정중적단속문제,저취시본문담우지소재.
The Power over Ethernet (PoE) is the use of Ethernet of the cat5 UTP cable to transfer direct current, do not need an adapter to supply the power to the end use, PoE technique can save cost, and can control the electric devices through network by software, achieve the goal of green environmental protection, but, while the dc current is joined on the original cable of the LAN network, many of the network equipment manufacturers have not understood the choice of the LAN transformer sufficiently, in order to meet the transferring of dc load current function at the same time, damage to the electromagnetic compatibility (EMC), therefore, lead to intermittent problem in the process of network link, this is the paper concerns.
