{"id":232,"date":"2013-05-30T09:08:30","date_gmt":"2013-05-30T01:08:30","guid":{"rendered":"http:\/\/www.qtbuxian.com\/?p=232"},"modified":"2013-05-30T09:08:30","modified_gmt":"2013-05-30T01:08:30","slug":"poe%e6%8a%80%e6%9c%af%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f%e5%ba%94%e7%94%a8%e5%9c%a8%e5%93%aa%e9%87%8c%ef%bc%9f","status":"publish","type":"post","link":"http:\/\/www.qtbuxian.com\/?p=232","title":{"rendered":"PoE\u6280\u672f\u662f\u4ec0\u4e48\uff1f\u5e94\u7528\u5728\u54ea\u91cc\uff1f"},"content":{"rendered":"<p>PoE\uff08Power Over Ethernet\uff09\u6307\u7684\u662f\u5728\u73b0\u6709\u7684\u4ee5\u592a\u7f51Cat.5\u5e03\u7ebf\u57fa\u7840\u67b6\u6784\u4e0d\u4f5c\u4efb\u4f55\u6539\u52a8\u7684\u60c5\u51b5\u4e0b\uff0c\u5728\u4e3a\u4e00\u4e9b\u57fa\u4e8eIP\u7684\u7ec8\u7aef\uff08\u5982IP\u7535\u8bdd\u673a\u3001\u65e0\u7ebf\u5c40\u57df\u7f51\u63a5\u5165\u70b9AP\u3001\u7f51\u7edc\u6444\u50cf\u673a\u7b49\uff09\u4f20\u8f93\u6570\u636e\u4fe1\u53f7\u7684\u540c\u65f6\uff0c\u8fd8\u80fd\u4e3a\u6b64\u7c7b\u8bbe\u5907\u63d0\u4f9b\u76f4\u6d41\u4f9b\u7535\u7684\u6280\u672f\u3002PoE\u4e5f\u88ab\u79f0\u4e3a\u57fa\u4e8e\u5c40\u57df\u7f51\u7684\u4f9b\u7535\u7cfb\u7edf\uff08PoL,Power over LAN \uff09\u6216\u6709\u6e90\u4ee5\u592a\u7f51\uff08Active Ethernet\uff09\uff0c\u6709\u65f6\u4e5f\u88ab\u7b80\u79f0\u4e3a\u4ee5\u592a\u7f51\u4f9b\u7535\uff0c\u8fd9\u662f\u5229\u7528\u73b0\u5b58\u6807\u51c6\u4ee5\u592a\u7f51\u4f20\u8f93\u7535\u7f06\u7684\u540c\u65f6\u4f20\u9001\u6570\u636e\u548c\u7535\u529f\u7387\u7684\u6700\u65b0\u6807\u51c6\u89c4\u8303\uff0c\u5e76\u4fdd\u6301\u4e86\u4e0e\u73b0\u5b58\u4ee5\u592a\u7f51\u7cfb\u7edf\u548c\u7528\u6237\u7684\u517c\u5bb9\u6027\u3002<\/p>\n<p><a href=\"http:\/\/www.qtbuxian.com\/?attachment_id=233\" rel=\"attachment wp-att-233\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-233 aligncenter\" alt=\"7945563\" src=\"http:\/\/www.qtbuxian.com\/wp-content\/uploads\/2013\/05\/7945563-300x212.jpg\" width=\"300\" height=\"212\" srcset=\"http:\/\/www.qtbuxian.com\/wp-content\/uploads\/2013\/05\/7945563-300x212.jpg 300w, http:\/\/www.qtbuxian.com\/wp-content\/uploads\/2013\/05\/7945563-425x300.jpg 425w, http:\/\/www.qtbuxian.com\/wp-content\/uploads\/2013\/05\/7945563.jpg 450w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>\u7279\u70b9<br \/>\nPoE\u6280\u672f\u80fd\u5728\u786e\u4fdd\u73b0\u6709\u7ed3\u6784\u5316\u5e03\u7ebf\u5b89\u5168\u7684\u540c\u65f6\u4fdd\u8bc1\u73b0\u6709\u7f51\u7edc\u7684\u6b63\u5e38\u8fd0\u4f5c\uff0c\u6700\u5927\u9650\u5ea6\u5730\u964d\u4f4e\u6210\u672c\u3002IEEE 802.3af\u6807\u51c6\u662f\u57fa\u4e8e\u4ee5\u592a\u7f51\u4f9b\u7535\u7cfb\u7edfPoE\u7684\u65b0\u6807\u51c6\uff0c\u5b83\u5728IEEE 802.3\u7684\u57fa\u7840\u4e0a\u589e\u52a0\u4e86\u901a\u8fc7\u7f51\u7ebf\u76f4\u63a5\u4f9b\u7535\u7684\u76f8\u5173\u6807\u51c6\uff0c\u662f\u73b0\u6709\u4ee5\u592a\u7f51\u6807\u51c6\u7684\u6269\u5c55\uff0c\u4e5f\u662f\u7b2c\u4e00\u4e2a\u5173\u4e8e\u7535\u6e90\u5206\u914d\u7684\u56fd\u9645\u6807\u51c6\u3002<br \/>\nPoE\u65e9\u671f\u5e94\u7528\u6ca1\u6709\u6807\u51c6\uff0c\u91c7\u7528\u7a7a\u95f2\u4f9b\u7535\u7684\u65b9\u5f0f\u3002<br \/>\nIEEE 802.3af<br \/>\nIEEE 802.3af\uff0815.4W\uff09\u6210\u4e3a\u4e86\u9996\u4e2aPoE\u4f9b\u7535\u6807\u51c6\uff0c\u89c4\u5b9a\u4e86\u4ee5\u592a\u7f51\u4f9b\u7535\u6807\u51c6\uff0c\u662f\u73b0\u5728PoE\u5e94\u7528\u7684\u4e3b\u6d41\u5b9e\u73b0\u6807\u51c6\u3002<br \/>\nIEEE\u57281999\u5e74\u5f00\u59cb\u5236\u5b9a\u8be5\u6807\u51c6\uff0c\u6700\u65e9\u53c2\u4e0e\u7684\u5382\u5546\u67093Com, Intel, PowerDsine, Nortel, Mitel\u548cNational Semiconductor\u3002\u4f46\u662f\uff0c\u8be5\u6807\u51c6\u7684\u7f3a\u70b9\u4e00\u76f4\u5236\u7ea6\u7740\u5e02\u573a\u7684\u6269\u5927\u3002\u76f4\u52302003\u5e746\u6708\uff0cIEEE\u6279\u51c6\u4e86802. 3af\u6807\u51c6\uff0c\u5b83\u660e\u786e\u89c4\u5b9a\u4e86\u8fdc\u7a0b\u7cfb\u7edf\u4e2d\u7684\u7535\u529b\u68c0\u6d4b\u548c\u63a7\u5236\u4e8b\u9879\uff0c\u5e76\u5bf9\u8def\u7531\u5668\u3001\u4ea4\u6362\u673a\u548c\u96c6\u7ebf\u5668\u901a\u8fc7\u4ee5\u592a\u7f51\u7535\u7f06\u5411IP\u7535\u8bdd\u3001\u5b89\u5168\u7cfb\u7edf\u4ee5\u53ca\u65e0\u7ebfLAN\u63a5\u5165\u70b9\u7b49\u8bbe\u5907\u4f9b\u7535\u7684\u65b9\u5f0f\u8fdb\u884c\u4e86\u89c4\u5b9a\u3002IEEE 802.3af\u7684\u53d1\u5c55\u5305\u542b\u4e86\u8bb8\u591a\u516c\u53f8\u4e13\u5bb6\u7684\u52aa\u529b\uff0c\u8fd9\u4e5f\u4f7f\u5f97\u8be5\u6807\u51c6\u53ef\u4ee5\u5728\u5404\u65b9\u9762\u5f97\u5230\u68c0\u9a8c\u3002<br \/>\n\u4e00\u4e2a\u5178\u578b\u7684\u4ee5\u592a\u7f51\u4f9b\u7535\u7cfb\u7edf\u3002\u5728\u914d\u7ebf\u67dc\u91cc\u4fdd\u7559\u4ee5\u592a\u7f51\u4ea4\u6362\u673a\u8bbe\u5907\uff0c\u7528\u4e00\u4e2a\u5e26\u7535\u6e90\u4f9b\u7535\u96c6\u7ebf\u5668\uff08Midspan HUB\uff09\u7ed9\u5c40\u57df\u7f51\u7684\u53cc\u7ede\u7ebf\u63d0\u4f9b\u7535\u6e90\u3002\u5728\u53cc\u7ede\u7ebf\u7684\u672b\u7aef\uff0c\u8be5\u7535\u6e90\u7528\u6765\u9a71\u52a8\u7535\u8bdd\u3001\u65e0\u7ebf\u63a5\u5165\u70b9\u3001\u76f8\u673a\u548c\u5176\u4ed6\u8bbe\u5907\u3002\u4e3a\u907f\u514d\u65ad\u7535\uff0c\u53ef\u4ee5\u9009\u7528\u4e00\u4e2aUPS\u3002<br \/>\nIEEE 802.3at<br \/>\nIEEE802.3at\uff0825.5W\uff09\u5e94\u5927\u529f\u7387\u7ec8\u7aef\u7684\u9700\u6c42\u800c\u8bde\u751f\uff0c\u5728\u517c\u5bb9802.3af\u7684\u57fa\u7840\u4e0a\uff0c\u63d0\u4f9b\u66f4\u5927\u7684\u4f9b\u7535\u9700\u6c42\uff0c\u6ee1\u8db3\u65b0\u7684\u9700\u6c42\u3002<br \/>\n\u4e3a\u4e86\u9075\u5faaIEEE 802.3af \u89c4\u8303\uff0c\u53d7\u7535\u8bbe\u5907\uff08PD\uff09\u4e0a\u7684PoE \u529f\u8017\u88ab\u9650\u5236\u4e3a12.95W\uff0c\u8fd9\u5bf9\u4e8e\u4f20\u7edf\u7684IP \u7535\u8bdd\u4ee5\u53ca\u7f51\u7edc\u6444\u50cf\u5934\u800c\u8a00\u8db3\u4ee5\u6ee1\u8db3\u9700\u6c42\uff0c\u4f46\u968f\u7740\u53cc\u6ce2\u6bb5\u63a5\u5165\u3001\u89c6\u9891\u7535\u8bdd\u3001PTZ \u89c6\u9891\u76d1\u63a7\u7cfb\u7edf\u7b49\u9ad8\u529f\u7387\u5e94\u7528\u7684\u51fa\u73b0\uff0c13W \u7684\u4f9b\u7535\u529f\u7387\u663e\u7136\u4e0d\u80fd\u6ee1\u8db3\u9700\u6c42\uff0c\u8fd9\u5c31\u9650\u5236\u4e86\u4ee5\u592a\u7f51\u7535\u7f06\u4f9b\u7535\u7684\u5e94\u7528\u8303\u56f4\u3002\u4e3a\u4e86\u514b\u670dPoE \u5bf9\u529f\u7387\u9884\u7b97\u7684\u9650\u5236\uff0c\u5e76\u5c06\u5176\u63a8\u5411\u65b0\u7684\u5e94\u7528\uff0cIEEE \u6210\u7acb\u4e86\u4e00\u4e2a\u65b0\u7684\u4efb\u52a1\u7ec4\uff0c\u65e8\u5728\u63a2\u6c42\u63d0\u9ad8\u8be5\u56fd\u9645\u7535\u6e90\u6807\u51c6\u7684\u529f\u7387\u9650\u503c\u7684\u65b9\u6cd5\u3002IEEE802.3\u5de5\u4f5c\u7ec4\u4e3a\u4e86\u5728\u6280\u672f\u53ca\u7ecf\u6d4e\u4e0a\u5bf9IEEE802.3at \u5b9e\u73b0\u7684\u53ef\u80fd\u6027\u8fdb\u884c\u8bc4\u4f30\uff0c\u4e8e2004 \u5e7411\u6708\u521b\u7acb\u4e86PoEPlus \u7684\u7814\u7a76\u5c0f\u7ec4\u3002\u4e4b\u540e\u53c8\u4e8e2005\u5e747\u6708\u6279\u51c6\u4e86\u5efa\u7acbIEEE 802.3at \u8c03\u67e5\u59d4\u5458\u4f1a\u7684\u8ba1\u5212\u3002\u65b0\u6807\u51c6\u79f0\u4e3aPower-over-Ethernet Plus \uff08PoEP\uff09 IEEE 802.3at\uff0c\u5b83\u5c06\u529f\u7387\u8981\u6c42\u9ad8\u4e8e12.95W \u7684\u8bbe\u5907\u5b9a\u4e49\u4e3aClass 4\uff08\u8be5\u7ea7\u522b\u5728IEEE 802.3af \u4e2d\u6709\u63cf\u8ff0\uff0c\u4f46\u7559\u4f5c\u5c06\u6765\u4f7f\u7528\uff09\uff0c\u53ef\u5c06\u529f\u7387\u6c34\u5e73\u6269\u5c55\u523025W \u6216\u66f4\u9ad8\u3002<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>PoE\uff08Power Over Ethernet\uff09\u6307\u7684\u662f\u5728\u73b0\u6709\u7684\u4ee5\u592a\u7f51Cat.5\u5e03\u7ebf\u57fa\u7840\u67b6\u6784\u4e0d\u4f5c\u4efb\u4f55\u6539\u52a8\u7684\u60c5\u51b5\u4e0b [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[24,48,35],"class_list":["post-232","post","type-post","status-publish","format-standard","hentry","category-47","tag-qtbuxian","tag-48","tag-35"],"_links":{"self":[{"href":"http:\/\/www.qtbuxian.com\/index.php?rest_route=\/wp\/v2\/posts\/232","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.qtbuxian.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.qtbuxian.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.qtbuxian.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.qtbuxian.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=232"}],"version-history":[{"count":1,"href":"http:\/\/www.qtbuxian.com\/index.php?rest_route=\/wp\/v2\/posts\/232\/revisions"}],"predecessor-version":[{"id":234,"href":"http:\/\/www.qtbuxian.com\/index.php?rest_route=\/wp\/v2\/posts\/232\/revisions\/234"}],"wp:attachment":[{"href":"http:\/\/www.qtbuxian.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=232"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.qtbuxian.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=232"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.qtbuxian.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=232"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}