{"id":101407,"date":"2023-12-18T01:05:00","date_gmt":"2023-12-17T17:05:00","guid":{"rendered":"https:\/\/stg-optcore-staging.kinsta.cloud\/how-to-calculate-the-fiber-link-budget\/"},"modified":"2023-12-18T19:00:11","modified_gmt":"2023-12-18T11:00:11","slug":"fiber-link-budget","status":"publish","type":"post","link":"https:\/\/stg-optcore-staging.kinsta.cloud\/ja\/fiber-link-budget\/","title":{"rendered":"\u30c6\u30b9\u30c8\u30d5\u30a1\u30a4\u30d0\u30fc\u30ea\u30f3\u30af\u30d0\u30b8\u30a7\u30c3\u30c8:\u521d\u5fc3\u8005\u306e\u305f\u3081\u306e\u7c21\u5358\u306a\u30ac\u30a4\u30c9"},"content":{"rendered":"\n<p><em>\u521d\u7248\u767a\u884c: 4\u6708 27, 2017<\/em><\/p>\n\n\n\n<div class=\"wp-block-yoast-seo-table-of-contents yoast-table-of-contents\"><h2>\u76ee\u6b21<\/h2><ul><li><a href=\"#block-2d71f3ce-3cad-48b6-8472-fbef30ead5e2\" data-level=\"2\">\u306f\u3058\u3081\u306b<\/a><\/li><li><a href=\"#block-dcc557b2-46b4-4288-8082-638509c63d9b\" data-level=\"2\">\u30d5\u30a1\u30a4\u30d0\u30fc\u30fb\u30ea\u30f3\u30af\u306e\u30d0\u30b8\u30a7\u30c3\u30c8\u3092\u30c6\u30b9\u30c8\u3059\u308b\u306b\u306f\uff1f<\/a><\/li><li><a href=\"#block-be967035-5fce-4f13-8508-4724f48753aa\" data-level=\"2\">\u30d5\u30a1\u30a4\u30d0\u30fc\u30fb\u30ea\u30f3\u30af\u30fb\u30d0\u30b8\u30a7\u30c3\u30c8\u306e\u8a08\u7b97\u65b9\u6cd5<\/a><\/li><li><a href=\"#block-e8573a9e-9a76-45a5-8dc5-342a34b2458d\" data-level=\"2\">\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u30ea\u30f3\u30af\u306e\u640d\u5931\u3092\u6e1b\u3089\u3059\u306b\u306f\uff1f<\/a><\/li><li><a href=\"#block-b53594f7-bc53-4764-a1e2-7eb70dc7f72d\" data-level=\"2\">\u3088\u304f\u3042\u308b\u8cea\u554f<\/a><\/li><\/ul><\/div>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"block-2d71f3ce-3cad-48b6-8472-fbef30ead5e2\">\u306f\u3058\u3081\u306b<\/h2>\n\n\n\n<p id=\"block-558dafb0-b08d-445d-8a4a-8d7ef557b4db\">\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u30fb\u30b7\u30b9\u30c6\u30e0\u306e\u8a2d\u8a08\u306f\u3001\u30d0\u30e9\u30f3\u30b9\u3092\u53d6\u308b\u4f5c\u696d\u3067\u3059\u3002\u4ed6\u306e\u30b7\u30b9\u30c6\u30e0\u3068\u540c\u69d8\u306b\u3001\u6027\u80fd\u57fa\u6e96\u3092\u8a2d\u5b9a\u3057\u3001\u305d\u306e\u57fa\u6e96\u3092\u6e80\u305f\u3059\u65b9\u6cd5\u3092\u6c7a\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u91cd\u8981\u306a\u3053\u3068\u306f\u3001\u6211\u3005\u306f\u3001\u305d\u306e\u90e8\u5206\u306e\u7dcf\u548c\u3067\u3042\u308b\u30b7\u30b9\u30c6\u30e0\u306b\u3064\u3044\u3066\u8a71\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u899a\u3048\u3066\u304a\u304f\u3053\u3068\u3067\u3059\u3002\u30d5\u30a1\u30a4\u30d0\u30fc\u30ea\u30f3\u30af\u30d0\u30b8\u30a7\u30c3\u30c8\u306f\u3001\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u30b7\u30b9\u30c6\u30e0\u306b\u3068\u3063\u3066\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002\u3053\u308c\u306f\u3001<a href=\"https:\/\/stg-optcore-staging.kinsta.cloud\/ja\/product-category\/fiber-cabling\/fiber-patch-cables\/\">\u30d5\u30a1\u30a4\u30d0\u30fc\u30b1\u30fc\u30d6\u30eb<\/a>\u30d7\u30e9\u30f3\u30c8\u304c\u6301\u3064\u3079\u304d\u640d\u5931\u3092\u6307\u3057\u307e\u3059\u3002\u672c\u7a3f\u3067\u306f\u3001\u30d5\u30a1\u30a4\u30d0\u30fc\u30ea\u30f3\u30af\u30d0\u30b8\u30a7\u30c3\u30c8\u306e\u6c7a\u5b9a\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"block-dcc557b2-46b4-4288-8082-638509c63d9b\">\u30d5\u30a1\u30a4\u30d0\u30fc\u30fb\u30ea\u30f3\u30af\u306e\u30d0\u30b8\u30a7\u30c3\u30c8\u3092\u30c6\u30b9\u30c8\u3059\u308b\u306b\u306f\uff1f<\/h2>\n\n\n\n<p id=\"block-a12224a8-6d69-4eac-b66d-0d07b8925763\">\u7279\u5b9a\u306e\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u30fb\u30ea\u30f3\u30af\u30fb\u30b7\u30b9\u30c6\u30e0\u306e\u30ea\u30f3\u30af\u30fb\u30d0\u30b8\u30a7\u30c3\u30c8\u3092\u6c7a\u5b9a\u3059\u308b\u554f\u984c\u306b\u53d6\u308a\u7d44\u3080\u306b\u306f\u3001\u591a\u304f\u306e\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002\u6700\u3082\u7c21\u5358\u3067\u6b63\u78ba\u306a\u65b9\u6cd5\u306f\u3001\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u30fb\u30ea\u30f3\u30af\u306e OTDR (Optical Time Domain Reflectometer) \u30c8\u30ec\u30fc\u30b9\u3092\u5b9f\u884c\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30ea\u30f3\u30af\u5185\u306e\u3059\u3079\u3066\u306e\u30a4\u30d9\u30f3\u30c8\uff08\u30b3\u30cd\u30af\u30bf\u3001\u30b9\u30d7\u30e9\u30a4\u30b9\u3001\u304a\u3088\u3073\u30d5\u30a1\u30a4\u30d0\u30fc\u640d\u5931\uff09\u306e\u5b9f\u969b\u306e\u640d\u5931\u5024\u304c\u5f97\u3089\u308c\u307e\u3059\u3002\u5b9f\u969b\u306e OTDR \u30c8\u30ec\u30fc\u30b9\u304c\u306a\u3044\u5834\u5408\u3001\u30ea\u30f3\u30af\u30fb\u30d0\u30b8\u30a7\u30c3\u30c8\u3092\u63a8\u5b9a\u3059\u308b\u305f\u3081\u306b 2 \u3064\u306e\u9078\u629e\u80a2\u304c\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30d5\u30a1\u30a4\u30d0\u30fc\u9577\u304c\u65e2\u77e5\u3067\u3001\u640d\u5931\u5909\u6570\u304c\u65e2\u77e5\u306e\u65e2\u5b58\u306e\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u30ea\u30f3\u30af\u5168\u4f53\u306e\u30ea\u30f3\u30af\u640d\u5931\u3092\u63a8\u5b9a\u3059\u308b\u3002<\/li>\n\n\n\n<li>\u5149\u30d0\u30b8\u30a7\u30c3\u30c8\u3068\u640d\u5931\u5909\u6570\u304c\u65e2\u77e5\u306e\u5834\u5408\u3001\u6700\u5927\u30d5\u30a1\u30a4\u30d0\u8ddd\u96e2\u3092\u63a8\u5b9a\u3059\u308b\u3002<\/li>\n<\/ul>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"block-be967035-5fce-4f13-8508-4724f48753aa\">\u30d5\u30a1\u30a4\u30d0\u30fc\u30fb\u30ea\u30f3\u30af\u30fb\u30d0\u30b8\u30a7\u30c3\u30c8\u306e\u8a08\u7b97\u65b9\u6cd5<\/h2>\n\n\n\n<p id=\"block-a472543c-843f-4a4f-b279-239611099fab\">\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u30fb\u30b7\u30b9\u30c6\u30e0\u306e\u30ea\u30f3\u30af\u30fb\u30d0\u30b8\u30a7\u30c3\u30c8\u306f\u3001\u9577\u3044\u8981\u7d20\u306e\u30ea\u30b9\u30c8\u306b\u57fa\u3065\u3044\u3066\u8a08\u7b97\u3055\u308c\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u3001\u4e00\u822c\u7684\u306a\u4f1d\u9001\u30b7\u30b9\u30c6\u30e0\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6c7a\u5b9a\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u308b\u5fc5\u9808\u9805\u76ee\u306e\u30ea\u30b9\u30c8\u3067\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u30d5\u30a1\u30a4\u30d0\u30fc\u640d\u5931\u4fc2\u6570<\/strong> &#8211; \u4e00\u822c\u306b\u3001\u30d5\u30a1\u30a4\u30d0\u30fc\u640d\u5931\u306f\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u306e\u6027\u80fd\u306b\u6700\u3082\u5927\u304d\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002\u30d5\u30a1\u30a4\u30d0\u30fc\u7d20\u7dda\u30e1\u30fc\u30ab\u30fc\u306f\u30011 \u30ad\u30ed\u30e1\u30fc\u30c8\u30eb\u3042\u305f\u308a\u306e dB \u306e\u640d\u5931\u4fc2\u6570\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002\u7dcf\u30d5\u30a1\u30a4\u30d0\u30fc\u640d\u5931\u306e\u8a08\u7b97\u306f\u3001\u8ddd\u96e2 x \u640d\u5931\u4fc2\u6570\u306b\u57fa\u3065\u3044\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u5834\u5408\u306e\u8ddd\u96e2\u3068\u306f\u3001\u30de\u30c3\u30d7\u8ddd\u96e2\u3060\u3051\u3067\u306a\u304f\u3001\u30d5\u30a1\u30a4\u30d0\u30fc\u30b1\u30fc\u30d6\u30eb\u306e\u5168\u9577\u306e\u3053\u3068\u3067\u3059\u3002<\/li>\n\n\n\n<li><strong>\u30d5\u30a1\u30a4\u30d0\u30fc\u306e\u7a2e\u985e<\/strong> <strong>\u30b1\u30fc\u30d6\u30eb<\/strong> &#8211; \u307b\u3068\u3093\u3069\u306e\u30b7\u30f3\u30b0\u30eb\u30e2\u30fc\u30c9\u30fb\u30d5\u30a1\u30a4\u30d0\u30fc\u306e\u640d\u5931\u4fc2\u6570\u306f\u30010.25 (@ 1550nm) \uff5e 0.35 (@ 1310nm) dB\/km \u3067\u3059\u3002\u30de\u30eb\u30c1\u30e2\u30fc\u30c9\u30fb\u30d5\u30a1\u30a4\u30d0\u30fc\u306e\u640d\u5931\u4fc2\u6570\u306f\u7d042.5\uff08@ 850nm\uff09\u30680.8\uff08@ 1300nm\uff09dB\/km\u3067\u3059\u3002\u4f7f\u7528\u3059\u308b\u30d5\u30a1\u30a4\u30d0\u30fc\u306e\u7a2e\u985e\u306f\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002<a href=\"\/?product_cat=om2-50125\u03bcm-multimode\">\u30de\u30eb\u30c1\u30e2\u30fc\u30c9\u30fb\u30d5\u30a1\u30a4\u30d0\u30fc<\/a>\u306fLED\u30c8\u30e9\u30f3\u30b9\u30df\u30c3\u30bf\u30fc\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u30b7\u30f3\u30b0\u30eb\u30e2\u30fc\u30c9\u30fb\u30d5\u30a1\u30a4\u30d0\u30fc\u306f\u3001DFB FP\u306e\u3088\u3046\u306a\u300c\u9577\u3044\u5230\u9054\u8ddd\u96e2\u300d\u3084\u300c\u77ed\u3044\u5230\u9054\u8ddd\u96e2\u300d\u306e\u57fa\u6e96\u306b\u5408\u308f\u305b\u3066\u3055\u307e\u3056\u307e\u306a\u51fa\u529b\u304c\u3042\u308bLASER\u30c8\u30e9\u30f3\u30b9\u30df\u30c3\u30bf\u30fc\u3067\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u30c8\u30e9\u30f3\u30b9\u30df\u30c3\u30bf<\/strong> &#8211; \u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u4e3b\u306b2\u7a2e\u985e\u306e\u30c8\u30e9\u30f3\u30b9\u30df\u30c3\u30bf\u304c\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002LASER\u306b\u306f\u3001\u9ad8\u3001\u4e2d\u3001\u4f4e\u306e3\u7a2e\u985e\u304c\u3042\u308a\u307e\u3059\uff08\u5ef6\u9577\u30ea\u30fc\u30c1\u3001\u4e2d\u30ea\u30fc\u30c1\u3001\u77ed\u30ea\u30fc\u30c1\uff09\u3002\u5168\u4f53\u3068\u3057\u3066\u3001\u3069\u306e\u30bf\u30a4\u30d7\u3092\u4f7f\u7528\u3059\u308b\u304b\u306f\u30b7\u30b9\u30c6\u30e0\u8a2d\u8a08\u306b\u3088\u3063\u3066\u6c7a\u307e\u308a\u307e\u3059\u3002LED\u30c8\u30e9\u30f3\u30b9\u30df\u30c3\u30bf\u30fc\u306f\u30de\u30eb\u30c1\u30e2\u30fc\u30c9\u30d5\u30a1\u30a4\u30d0\u30fc\u3067\u4f7f\u7528\u3055\u308c\u308b\u3002\u305f\u3060\u3057\u3001\u300c\u9ad8\u51fa\u529b\u300dLED\u306f\u30b7\u30f3\u30b0\u30eb\u30e2\u30fc\u30c9\u30fb\u30d5\u30a1\u30a4\u30d0\u30fc\u3067\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002\u30c8\u30e9\u30f3\u30b9\u30df\u30c3\u30bf\u30fc\u306f\u3001\u30b3\u30cd\u30af\u30bf\u3067\u306e\u5149\u51fa\u529b\uff08-5dB\u306a\u3069\uff09\u3067\u8a55\u4fa1\u3055\u308c\u307e\u3059\u3002\u30c8\u30e9\u30f3\u30b9\u30df\u30c3\u30bf\u30fc\u306f\u901a\u5e38\u3001&#8221;\u30a8\u30df\u30c3\u30bf\u30fc &#8220;\u3068\u547c\u3070\u308c\u308b\u3002<\/li>\n\n\n\n<li><strong>\u53d7\u4fe1\u611f\u5ea6<\/strong> &#8211; \u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u53d7\u4fe1\u6a5f\u304c\u5149\u6e90\u3092\u898b\u308b\u80fd\u529b\u3002\u53d7\u4fe1\u88c5\u7f6e\u304c\u4ed5\u69d8\u306e\u7bc4\u56f2\u5185\u3067\u6a5f\u80fd\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u3042\u308b\u6700\u5c0f\u91cf\u306e\u53d7\u4fe1\u5149\u304c\u5fc5\u8981\u3067\u3059\u3002\u30ec\u30b7\u30fc\u30d0\u30fc\u306f\u3001-27dB\u306a\u3069\u3001\u5fc5\u8981\u306a\u53d7\u4fe1\u5149\u306e\u6700\u4f4e\u30ec\u30d9\u30eb\u3067\u8a55\u4fa1\u3055\u308c\u307e\u3059\u3002\u30ec\u30b7\u30fc\u30d0\u30fc\u306f\u300c\u30c7\u30a3\u30c6\u30af\u30bf\u30fc\u300d\u3068\u3082\u547c\u3070\u308c\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u30b9\u30d7\u30e9\u30a4\u30b9\u306e\u6570\u3068\u30bf\u30a4\u30d7<\/strong> &#8211; \u30b9\u30d7\u30e9\u30a4\u30b9\u306b\u306f2\u3064\u306e\u30bf\u30a4\u30d7\u304c\u3042\u308a\u307e\u3059\u3002\u30d5\u30a1\u30a4\u30d0\u306e\u7aef\u306b\u30b3\u30cd\u30af\u30bf\u3092\u4f7f\u7528\u3059\u308b\u6a5f\u68b0\u7684\u306a\u3082\u306e\u3068\u3001\u30d5\u30a1\u30a4\u30d0\u306e\u7aef\u3092\u7269\u7406\u7684\u306b\u76f4\u63a5\u5d4c\u5408\u3059\u308b\u878d\u7740\u3067\u3059\u3002\u30e1\u30ab\u30cb\u30ab\u30eb\u30b9\u30d7\u30e9\u30a4\u30b9\u306e\u640d\u5931\u306f\u3001\u4e00\u822c\u7684\u306b\u30b3\u30cd\u30af\u30bf\u3042\u305f\u308a0.7\uff5e1.5dB\u3068\u8a08\u7b97\u3055\u308c\u307e\u3059\u3002\u878d\u7740\u63a5\u7d9a\u306e\u640d\u5931\u306f\u30010.1\uff5e0.5 dB \u3068\u8a08\u7b97\u3055\u308c\u307e\u3059\u3002\u640d\u5931\u4fc2\u6570\u304c\u9650\u3089\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u878d\u7740\u63a5\u7d9a\u304c\u597d\u307e\u308c\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u30de\u30fc\u30b8\u30f3 &#8211; \u3053\u308c\u306f\u4e0d\u53ef\u6b20\u306a\u8981\u7d20\u3067\u3059\u3002<\/strong>\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u5358\u306b\u5fc5\u8981\u6700\u5c0f\u9650\u306e\u5149\u3067\u30ec\u30b7\u30fc\u30d0\u30fc\u306b\u5230\u9054\u3059\u308b\u3053\u3068\u3092\u57fa\u6e96\u306b\u8a2d\u8a08\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u30e9\u30a4\u30c8\u30d1\u30ef\u30fc\u30d0\u30b8\u30a7\u30c3\u30c8\u30de\u30fc\u30b8\u30f3\u306f\u3001\u30d5\u30a1\u30a4\u30d0\u30fc\u306e\u7d4c\u5e74\u52a3\u5316\u3001\u30c8\u30e9\u30f3\u30b9\u30df\u30c3\u30bf\u30fc\u3068\u30ec\u30b7\u30fc\u30d0\u30fc\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u7d4c\u5e74\u52a3\u5316\u3001\u30b1\u30fc\u30d6\u30eb\u30d1\u30b9\u306b\u6cbf\u3063\u305f\u30c7\u30d0\u30a4\u30b9\u306e\u8ffd\u52a0\u3001\u30d5\u30a1\u30a4\u30d0\u30fc\u30b1\u30fc\u30d6\u30eb\u306e\u5076\u767a\u7684\u306a\u306d\u3058\u308c\u3084\u66f2\u304c\u308a\u3001\u30b1\u30fc\u30d6\u30eb\u306e\u65ad\u7dda\u3092\u4fee\u5fa9\u3059\u308b\u305f\u3081\u306e\u8ffd\u52a0\u30b9\u30d7\u30e9\u30a4\u30b9\u306a\u3069\u3092\u8003\u616e\u3057\u307e\u3059\u3002\u307b\u3068\u3093\u3069\u306e\u30b7\u30b9\u30c6\u30e0\u8a2d\u8a08\u8005\u306f\u30013 dB \u304b\u3089 10 dB \u306e\u30ed\u30b9\u30fb\u30d0\u30b8\u30a7\u30c3\u30c8\u30fb\u30de\u30fc\u30b8\u30f3\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4ee5\u4e0b\u306e\u8868\u306f\u3001\u3053\u308c\u3089\u306e\u8a08\u7b97\u306b\u304a\u3044\u3066\u4e00\u822c\u7684\u306b\u53d7\u3051\u5165\u308c\u3089\u308c\u3066\u3044\u308b\u640d\u5931\u984d\u3067\u3042\u308b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><tbody><tr><td><strong>\u30d5\u30a1\u30a4\u30d0\u30fc\u306e\u7a2e\u985e<\/strong><\/td><td><strong>\u6ce2\u9577<\/strong><\/td><td><strong>\u30d5\u30a1\u30a4\u30d0\u30fc\u306e\u6e1b\u8870<\/strong><strong>\/km<\/strong><\/td><td><strong>\u30b3\u30cd\u30af\u30bf<\/strong><strong>\u640d\u5931<\/strong><\/td><td><strong>\u63a5\u7d9a\u640d\u5931<\/strong><\/td><\/tr><tr><td>\u30de\u30eb\u30c1\u30e2\u30fc\u30c9 50\/150\u03bcm<\/td><td>850nm1310nm<\/td><td>2.5dB0.8dB<\/td><td>0.75dB0.75dB<\/td><td>0.1dB<\/td><\/tr><tr><td>\u30de\u30eb\u30c1\u30e2\u30fc\u30c9 62.5\/125\u03bcm<\/td><td>850nm1310nm<\/td><td>3.0dB0.7dB<\/td><td>0.75dB0.75dB<\/td><td>0.1dB<\/td><\/tr><tr><td>\u30b7\u30f3\u30b0\u30eb\u30e2\u30fc\u30c9 9\u03bcm<\/td><td>1310nm<\/td><td>0.35dB<\/td><td>0.75dB<\/td><td>0.1dB<\/td><\/tr><tr><td>\u30b7\u30f3\u30b0\u30eb\u30e2\u30fc\u30c9 9\u03bcm<\/td><td>1550nm<\/td><td>0.22dB<\/td><td>0.75dB<\/td><td>0.1dB<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<pre class=\"wp-block-verse\">\u30ea\u30f3\u30af\u30d0\u30b8\u30a7\u30c3\u30c8= [\u30d5\u30a1\u30a4\u30d0\u30fc\u9577\uff08km\uff09\u00d7km\u3042\u305f\u308a\u306e\u30d5\u30a1\u30a4\u30d0\u30fc\u6e1b\u8870] + [\u30b9\u30d7\u30e9\u30a4\u30b9\u30ed\u30b9\u00d7\u30b9\u30d7\u30e9\u30a4\u30b9\u6570] + [\u30b3\u30cd\u30af\u30bf\u30fc\u30ed\u30b9\u00d7\u30b3\u30cd\u30af\u30bf\u30fc\u6570] + [\u5b89\u5168\u30de\u30fc\u30b8\u30f3\uff3d <\/pre>\n\n\n\n<p>\u4f8b\u3048\u3070\u30011310nm \u3067 10km \u306e\u30b7\u30f3\u30b0\u30eb\u30e2\u30fc\u30c9\u30fb\u30d5\u30a1\u30a4\u30d0\u30fc\u30fb\u30ea\u30f3\u30af\u3092 2 \u3064\u306e\u30b3\u30cd\u30af\u30bf\u30fc\u30fb\u30da\u30a2\u3068 2 \u3064\u306e\u30b9\u30d7\u30e9\u30a4\u30b9\u3067\u60f3\u5b9a\u3059\u308b\u3002 \u30ea\u30f3\u30af\u4e88\u7b97= [10km \u00d7 0.35dB\/km] + [0.1dB \u00d7 2] + [0.75dB \u00d7 2] + [3.0dB] = 8.2dB<\/p>\n\n\n\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001\u3053\u306e\u30ea\u30f3\u30af\u3067\u9001\u4fe1\u3059\u308b\u306b\u306f\u63a8\u5b9a8.2dB\u306e\u96fb\u529b\u304c\u5fc5\u8981\u3068\u306a\u308b\u3002\u3082\u3061\u308d\u3093\u3001\u30ea\u30f3\u30af\u304c\u78ba\u7acb\u3055\u308c\u305f\u5f8c\u306b\u30ea\u30f3\u30af\u640d\u5931\u306e\u5024\u3092\u6e2c\u5b9a\u3057\u3066\u691c\u8a3c\u3059\u308b\u3053\u3068\u306f\u3001\u6f5c\u5728\u7684\u306a\u6027\u80fd\u306e\u554f\u984c\u3092\u7279\u5b9a\u3059\u308b\u305f\u3081\u306b\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"block-41b6cd3b-2797-42ae-9c7b-a918a3dd7951\"><strong>\u30d5\u30a1\u30a4\u30d0\u30fc\u8ddd\u96e2\u306e\u898b\u7a4d\u3082\u308a<\/strong>\u3002<\/h3>\n\n\n\n<p id=\"block-0424ea67-860d-4c86-8a91-e6f8041fd42c\">\u3053\u306e\u8a08\u7b97\u3067\u306f\u3001\u5149\u30ea\u30f3\u30af\u306e\u30d0\u30b8\u30a7\u30c3\u30c8\u3001\u30ea\u30f3\u30af\u306b\u542b\u307e\u308c\u308b\u30b3\u30cd\u30af\u30bf\u3068\u30b9\u30d7\u30e9\u30a4\u30b9\u306e\u6570\u3092\u6307\u5b9a\u3059\u308b\u3068\u3001\u7279\u5b9a\u306e\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u30ea\u30f3\u30af\u306e\u6700\u5927\u8ddd\u96e2\u3092\u63a8\u5b9a\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<p id=\"block-55f3a6d5-9405-471f-bcb1-23117b1a4a34\">\u30d5\u30a1\u30a4\u30d0\u9577 = ([\u5149\u30d0\u30b8\u30a7\u30c3\u30c8] &#8211; [\u30ea\u30f3\u30af\u30d0\u30b8\u30a7\u30c3\u30c8]) \/ [\u30d5\u30a1\u30a4\u30d0\u30ed\u30b9\/km]<br>\u30d5\u30a1\u30a4\u30d0\u9577 = {[(\u6700\u5c0fTX PWR) &#8211; (RX\u611f\u5ea6)]- [\u30b9\u30d7\u30e9\u30a4\u30b9\u30ed\u30b9\u00d7\u30b9\u30d7\u30e9\u30a4\u30b9\u6570]- [\u30b3\u30cd\u30af\u30bf\u30ed\u30b9\u00d7\u30b3\u30cd\u30af\u30bf\u6570]- [\u30bb\u30fc\u30d5\u30c6\u30a3\u30de\u30fc\u30b8\u30f3]}\u00f7[\u30d5\u30a1\u30a4\u30d0\u30ed\u30b9\/km]\u3002<\/p>\n\n\n\n<p id=\"block-3cd710f9-1773-447f-9496-fcb9d7b2e37e\">\u305f\u3068\u3048\u3070\u3001<a href=\"https:\/\/stg-optcore-staging.kinsta.cloud\/ja\/product\/osp1250-3120dcr-gen\/\">1G SFP LX<\/a> \u30e2\u30b8\u30e5\u30fc\u30eb\uff08PN: OSP1250-3120DCR\uff09\u306e\u30ea\u30f3\u30af\u304c1310nm\u3067\u30012\u3064\u306e\u30b3\u30cd\u30af\u30bf\u30da\u30a2\u30682\u3064\u306e\u30b9\u30d7\u30e9\u30a4\u30b9\u304c\u3042\u308b\u3068\u3057\u307e\u3059\uff1a<em><strong>\u30d5\u30a1\u30a4\u30d0\u9577<\/strong> = {[(-9.0dB)-(-21.0dB)] &#8211; [0.1dB \u00d7 2] &#8211; [0.75dB \u00d7 2] &#8211; [3.0dB]} \u00f7 [0.35dB\/km] = 20.8km.\/ [0.35dB\/km] = 20.8km.<\/em>.<\/p>\n\n\n\n<p id=\"block-3d2a68bd-fe52-4685-ba2f-afb697d970e0\">\u3053\u306e\u4f8b\u3067\u306f\u3001Rx\u611f\u5ea6\u3092\u4e0b\u56de\u308b\u5024\u307e\u3067\u5149\u30d1\u30ef\u30fc\u3092\u6563\u9038\u3055\u305b\u308b\u524d\u306b\u3001\u63a8\u5b9a20.8km\u306e\u8ddd\u96e2\u304c\u53ef\u80fd\u3067\u3042\u308b\u3002\u3044\u3064\u3082\u306e\u3088\u3046\u306b\u3001\u6f5c\u5728\u7684\u306a\u6027\u80fd\u554f\u984c\u3092\u7279\u5b9a\u3059\u308b\u305f\u3081\u306b\u3001\u30ea\u30f3\u30af\u304c\u78ba\u7acb\u3055\u308c\u305f\u5f8c\u306b\u5b9f\u969b\u306e\u30ea\u30f3\u30af\u640d\u5931\u5024\u3092\u6e2c\u5b9a\u3057\u3001\u691c\u8a3c\u3059\u308b\u3053\u3068\u306f\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002\u5b9f\u969b\u306e\u6700\u5927\u8ddd\u96e2\u306f\u4ee5\u4e0b\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>1km\u3042\u305f\u308a\u306e\u5b9f\u969b\u306e\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u6e1b\u8870\u91cf<\/li>\n\n\n\n<li>\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u306e\u8a2d\u8a08\u3068\u5e74\u4ee3<\/li>\n\n\n\n<li>\u30b3\u30cd\u30af\u30bf\u306e\u54c1\u8cea\u3068\u30da\u30a2\u3042\u305f\u308a\u306e\u5b9f\u640d\u5931<\/li>\n\n\n\n<li>\u30b9\u30d7\u30e9\u30a4\u30b9\u306e\u54c1\u8cea\u3068\u30b9\u30d7\u30e9\u30a4\u30b9\u3042\u305f\u308a\u306e\u5b9f\u640d\u5931<\/li>\n\n\n\n<li>\u30ea\u30f3\u30af\u306e\u30b9\u30d7\u30e9\u30a4\u30b9\u3068\u30b3\u30cd\u30af\u30bf\u30fc\u306e\u6570<\/li>\n<\/ul>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"block-e8573a9e-9a76-45a5-8dc5-342a34b2458d\">\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u30ea\u30f3\u30af\u306e\u640d\u5931\u3092\u6e1b\u3089\u3059\u306b\u306f\uff1f<\/h2>\n\n\n\n<p id=\"block-a5a35832-f517-4b94-8310-0937cfe16dee\">\u4e0a\u8a18\u306e\u8aac\u660e\u306f\u3001\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u30ea\u30f3\u30af\u306e\u640d\u5931\u304c\u591a\u304f\u306e\u5074\u9762\u306b\u4f9d\u5b58\u3059\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u4e2d\u306b\u306f\u3001\u5438\u53ce\u640d\u5931\u3001\u539f\u5b50\u6b20\u9665\u5438\u53ce\u640d\u5931\u3001\u6563\u4e71\u640d\u5931\u306a\u3069\u3001\u5909\u66f4\u304c\u96e3\u3057\u3044\u3082\u306e\u3082\u3042\u308a\u307e\u3059\uff1b<\/p>\n\n\n\n<p id=\"block-3d555f03-c66e-4225-b8ed-88d173f18422\">\u3057\u304b\u3057\u3001\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u30ea\u30f3\u30af\u306e\u640d\u5931\u3092\u4f4e\u6e1b\u3057\u3001\u3088\u308a\u826f\u3044\u30ea\u30f3\u30af\u6027\u80fd\u3092\u5f97\u308b\u305f\u3081\u306b\u3001\u4ee5\u4e0b\u306e\u6280\u8853\u306b\u3088\u3063\u3066\u3055\u3089\u306b\u640d\u5931\u3092\u4f4e\u6e1b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/stg-optcore-staging.kinsta.cloud\/ja\/product-category\/fiber-cabling\/fiber-patch-cables\/\">\u9ad8\u54c1\u8cea\u306e\u5149\u30d5\u30a1\u30a4\u30d0\u30fc<\/a>\u3092\u9078\u3073\u3001\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u306e\u7aef\u9762\u3092\u5e73\u3089\u3067\u304d\u308c\u3044\u306a\u72b6\u614b\u306b\u4fdd\u3064\u3002<\/li>\n\n\n\n<li>\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u30fb\u30b1\u30fc\u30d6\u30eb\u306e\u30b7\u30fc\u30b9\u6469\u8017\u3084\u904e\u5ea6\u306e\u66f2\u3052\u3001\u5dfb\u304d\u4ed8\u3051\u3001\u5f15\u304d\u4f38\u3070\u3057\u3092\u9632\u6b62\u3059\u308b\u305f\u3081\u3001\u5de5\u4e8b\u62c5\u5f53\u8005\u306e\u6280\u8853\u30ec\u30d9\u30eb\u3092\u78ba\u4fdd\u3059\u308b\u3002<\/li>\n\n\n\n<li><a 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href=\"https:\/\/stg-optcore-staging.kinsta.cloud\/ja\/product-category\/fiber-cabling\/fiber-accessories\/optical-power-meter\/\">\u5149\u30d1\u30ef\u30fc\u30fb\u30e1\u30fc\u30bf\u30fc<\/a>\uff08OPM\uff09\u3092\u63a5\u7d9a\u3057\u307e\u3059\u3002\u6b21\u306b\u3001\u57fa\u6e96\u30b1\u30fc\u30d6\u30eb\u3092\u5916\u3057\u3001\u4e21\u7aef\u3092\u6e2c\u5b9a\u3059\u308b\u30b1\u30fc\u30d6\u30eb\u306b\u76f4\u63a5\u63a5\u7d9a\u3057\u307e\u3059\u30022\u3064\u306e\u5149\u30d1\u30ef\u30fc\u5024\u306e\u5dee\u304c\u3001\u56de\u7dda\u306e\u5168\u640d\u5931\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>\u53c2\u8003\u8cc7\u6599<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.thefoa.org\/tech\/lossbudg.htm\">https:\/\/www.thefoa.org\/tech\/lossbudg.htm<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/ops.fhwa.dot.gov\/publications\/telecomm_handbook\/chapter11.htm\">https:\/\/ops.fhwa.dot.gov\/publications\/telecomm_handbook\/chapter11.htm<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u521d\u7248\u767a\u884c: 4\u6708 27, 2017 \u306f\u3058\u3081\u306b 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