详情介绍
 
 Circuit Protection of Ethernet -- Power over Ethernet (PoE) Ports 
 
  
 
 
  
 
 
  设计说明:
   
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    保护应用:
   
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    There are two basic ways of providing DC Power over an Ethernet Port. Shown in the top figure is a method known as "phantom power" that puts a common-mode voltage on the Tx and Rx pairs. The lower figure shows the use of the spare pairs fround in the RJ45 connector to provide power. 
   
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    解决方案说明:
   
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    The Tx and Rx pairs should be protected using the appropriate Ethernet protection scheme. The DC power port should be protected using the DC Input protection scheme.
   
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    配套解决方案:
   
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    无。 
   
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    监管问题:
   
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    IEEE standard 802.3af, UL 60950 or EN 60950, Telcordia GR-1089 may apply. 
   
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    特性:
   
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    无。 
   
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    应用警告:
   
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    无。