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Àú´Â POE Àü¾ÐÀ» 48V·Î ¾Ë°í ÀÖ½À´Ï´Ù.
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POE Àü¾ÐÀÌ ¸Õ°¡¿ä?
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The original IEEE 802.3af-2003[2] PoE standard provides up to 15.4 W of DC power (minimum 44 V DC and 350 mA[3][4]) to each device.[5] Only 12.95 W is assured to be available at the powered device as some power is dissipated in the cable.[6]
 
The updated IEEE 802.3at-2009[7] PoE standard also known as PoE+ or PoE plus, provides up to 25.5 W of power
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½ÅÈ£ Àü¾ÐÀº 5 º¼Æ®ÀÔ´Ï´Ù.

¹è¼±À» ±æ°Ô¸¸ ¾ÈÇÏ¸é µÇ¿ä ÇÑ 2 ¹ÌÅÍ Á¤µµ ±îÁö´Â Àü·ù¸¸ ³ôÁö ¾Ê´Ù¸é ¾µ¼ö ÀÖÀ» °Ì´Ï´Ù.
     
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Àü¿ø¿ë À̱¸¿ä, ¿©·¯°¡´ÚÀִ°Š´ëºñ È¿À²ÀûÀÏ °Í °°¾Æ¼­¿ä ±×·¡¼­ ȸ»ç ·¦½Ç¿¡ 0.5 ÆÄÀÌ, 0.55 ÆÄÀÌ Â¥¸®°¡ Àֱ淡
0.55 ÆÄÀÌÂ¥¸®·Î Å×½ºÆ® ÇغÁ¾ß°Ú½À´Ï´Ù. ½ÇÁ¦ 12V 1¾ÏÆä¾î, 5V 2¾ÏÆä¾î Á¤µµÀÔ´Ï´Ù.
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3mÁ¤µµ »ç¿ëÇغ»ÀûÀÌ Àִµ¥, 12vÀü¾ÐÀÌ ¹«ºÎÇϽà 30v°¡ ³Ñ°Ô ³ª¿À°Ô µË´Ï´Ù.

PoEÀÇ °æ¿ì¿¡´Â À̸¦ °¨¾ÈÇÏ¿© ³»ºÎ¿¡ Àü¿øºÎ°¡ µû·Î Æ÷ÇԵǾî ÀÖÀ¸´Ï ¹®Á¦°¡ ¾øÁö¸¸, ´Ü¼ø DC Àü¼Û¿ëÀ¸·Î´Â ȸ·Î ³ª°¥ ¼ö ÀÖ½À´Ï´Ù.
     
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±×·±°¡¿ä? ÀúÇ×Àº 2m ÃøÁ¤ÇÏ´Ï 0.8 ¿ÈÁ¤µµ ¹Û¿¡ ¾È³ª¿À´øµ¥...2m ¸¸ ¾²¸é µÇ°Åµç¿ä...
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Á¦°¡ ¿©·¯±ºµ¥ »ç¿ëÁßÀÔ´Ï´Ù. Ç¥ÁØ POEµµ ÀÖ½À´Ï´Ù¸¸, 100Mbps POE µéÀº û+, °¥-·Î º¸³»´Ùº¸´Ï passive POE¸¦ ºÙ¿©¾²°Å³ª ±×³É ¶óÀÎÀ» µû¼­ »ç¿ëÁßÀÔ´Ï´Ù. ±ä¹è¼±ÀÇ °æ¿ì¿¡´Â voltage dropÀÌ ¾à°£ »ý±æ ¼ö À־, Á¤Àü¾ÐÀÌ Áß¿äÇÑ 5V¸¦ 30m °¡·® º¸³»´Â °æ¿ì(50m °Å¸®ÀÇ iPhone°ú raspberry pi)¿¡´Â 12/24V¸¦ ³Ö°í 5V DC-DC¸¦ ºÙ¿©µÎ¾ú½À´Ï´Ù. »ç¿ëÇÑ ¼±Àç°¡ ´ë°³ CAT6 FTP AWG22¶ó¼­ ¹è¼± Ç°ÁúÀÌ ¾à°£ ÁÁÀ» °Í °°±â´Â ÇÕ´Ï´Ù.
±×·±µ¥, 12V 1A³ª 5V 2A¶ó¸é ²Ï °íÀü·ùÀÎ ÆíÀ̶ó, Àú¶ó¸é regulator ¾È¾µ°æ¿ì 2m¶óµµ ±×³É ö¹°Á¡°¡¼­ ¼±À» »ç¿Ã °Í °°½À´Ï´Ù. °íÀü¾ÐÀ» °É°í Àü·ù¸¦ ³·Ãß´Â °ÍÀÌ ÀϹÝÀûÀÎ Á¢±Ù ¹æ¹ýÀ̴ϱî¿ä.


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