{"id":20217,"date":"2026-03-05T14:25:20","date_gmt":"2026-03-05T06:25:20","guid":{"rendered":"https:\/\/www.luleey.com\/?p=20217"},"modified":"2026-03-05T14:34:24","modified_gmt":"2026-03-05T06:34:24","slug":"what-are-tdr-and-otdr-simple-easy-to-understand-explanation","status":"publish","type":"post","link":"https:\/\/www.luleey.com\/ja\/what-are-tdr-and-otdr-simple-easy-to-understand-explanation\/","title":{"rendered":"TDR\u3068OTDR\u3068\u306f\uff1f\u30b7\u30f3\u30d7\u30eb\u3067\u308f\u304b\u308a\u3084\u3059\u3044\u8aac\u660e"},"content":{"rendered":"<p class=\"wp-block-wd-paragraph wd-4f6381dd\"><strong><a style=\"color: #FF6A00;\" target=\"_blank\" href=\"https:\/\/www.luleey.com\/ja\/tag\/tdr\/\" title=\"TDR \u306e\u6295\u7a3f\u3092\u3059\u3079\u3066\u8868\u793a\">TDR<\/a><\/strong> \u305d\u3057\u3066 <strong><a style=\"color: #FF6A00;\" target=\"_blank\" href=\"https:\/\/www.luleey.com\/ja\/tag\/otdr\/\" title=\"OTDR \u306e\u6295\u7a3f\u3092\u3059\u3079\u3066\u8868\u793a\">OTDR<\/a><\/strong> \u3092\u4f7f\u7528\u3059\u308b\u8a3a\u65ad\u691c\u67fb\u30c4\u30fc\u30eb\u3067\u3042\u308b\u3002 <strong>\u6642\u9593\u9818\u57df\u53cd\u5c04\u7387\u6cd5<\/strong> \u6545\u969c\u306e\u767a\u898b\u3001\u9577\u3055\u306e\u6e2c\u5b9a\u3001\u30b1\u30fc\u30d6\u30eb\u306e\u4fe1\u53f7\u640d\u5931\u306e\u30c1\u30a7\u30c3\u30af\u306b\u4f7f\u7528\u3059\u308b\u3002 <em>\u5404\u7a2e\u30b1\u30fc\u30d6\u30eb<\/em> \u305d\u3057\u3066\u7570\u306a\u308b\u30b7\u30b0\u30ca\u30eb\u3092\u4f7f\u7528\u3059\u308b\u3002\u4ee5\u4e0b\u306f\u3001\u5c02\u9580\u7528\u8a9e\u306f\u5fc5\u8981\u306a\u3044\u5e73\u6613\u306a\u8aac\u660e\u3067\u3042\u308b\u3002.<\/p>\n\n\n\n<div class=\"wp-block-wd-divider wd-style-line wd-295e5708\"><\/div>\n\n\n\n<h1 class=\"wp-block-wd-title title wd-380c254e\">TDR\u3068\u306f\uff1f(\u6642\u9593\u9818\u57df\u53cd\u5c04\u7387\u8a08\uff09<\/h1>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-a19bec0c\"><strong>TDR\u306fTime-Domain Reflectometer\u306e\u7565\u3002<\/strong> - \u305d\u308c\u306f <em>\u96fb\u6c17\/\u9285\u30b1\u30fc\u30d6\u30eb\u30d0\u30fc\u30b8\u30e7\u30f3<\/em> \u30b1\u30fc\u30d6\u30eb\u8a3a\u65ad\u30c4\u30fc\u30eb\u306e.<\/p>\n\n\n\n<h2 class=\"wp-block-wd-title title wd-1fc1d91b\">\u30b3\u30a2\u306e\u57fa\u672c\u3068\u4ed5\u7d44\u307f<\/h2>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-e89da33b\">TDR\u304c\u9001\u4fe1 <strong>\u9ad8\u901f\u96fb\u6c17\u30d1\u30eb\u30b9<\/strong> \u9285\u30d9\u30fc\u30b9\u306e\u30b1\u30fc\u30d6\u30eb\uff08\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u3001\u540c\u8ef8\u30b1\u30fc\u30d6\u30eb\u3001\u96fb\u8a71\u30b1\u30fc\u30d6\u30eb\u3001\u96fb\u6e90\u30b1\u30fc\u30d6\u30eb\u306a\u3069\uff09\u3092\u30c0\u30a6\u30f3\u3057\u307e\u3059\u3002\u30d1\u30eb\u30b9\u304c\u554f\u984c\uff08\u5207\u65ad\u3001\u77ed\u7d61\u3001\u63a5\u7d9a\u306e\u7de9\u307f\u3001\u66f2\u304c\u308a\u3001\u30b1\u30fc\u30d6\u30eb\u306e\u7aef\u306a\u3069\uff09\u306b\u3076\u3064\u304b\u308b\u3068\u3001\u4fe1\u53f7\u304cTDR\u30c7\u30d0\u30a4\u30b9\u306b\u8df3\u306d\u8fd4\u3055\u308c\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-39af27cf\">\u3053\u306e\u30c4\u30fc\u30eb\u3067\u6e2c\u5b9a\u3055\u308c\u308b\u306e\u306f <strong>\u53cd\u5c04\u30d1\u30eb\u30b9\u304c\u623b\u3063\u3066\u304f\u308b\u307e\u3067\u306e\u6642\u9593<\/strong> \u3092\u8a08\u7b97\u3059\u308b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u30b1\u30fc\u30d6\u30eb\u9577<\/strong> (\u30b1\u30fc\u30d6\u30eb\u306e\u7dcf\u8d70\u884c\u8ddd\u96e2\uff09<\/li>\n\n\n\n<li><strong>\u6b63\u78ba\u306a\u6545\u969c\u7b87\u6240<\/strong> (\u30b1\u30fc\u30d6\u30eb\u306e\u3069\u306e\u8fba\u308a\u307e\u3067\u640d\u50b7\/\u554f\u984c\u304c\u3042\u308b\u304b\uff09<\/li>\n\n\n\n<li><strong>\u4fe1\u53f7\u640d\u5931\/\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306e\u554f\u984c<\/strong> (\u63a5\u7d9a\u4e0d\u826f\u307e\u305f\u306f\u914d\u7dda\u306e\u640d\u50b7\uff09<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-wd-title title wd-514fd4d6\">TDR\u306e\u4e00\u822c\u7684\u306a\u7528\u9014<\/h2>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-ce1aa731\">\u30c6\u30b9\u30c8\u3068\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0 <strong>\u9285\/\u96fb\u6c17\u30b1\u30fc\u30d6\u30eb<\/strong> \u5bb6\u5ead\u3001\u30aa\u30d5\u30a3\u30b9\u3001\u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc\u3001\u96fb\u6c17\u901a\u4fe1\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3001\u7523\u696d\u7528\u914d\u7dda\u30b7\u30b9\u30c6\u30e0\u306a\u3069\u3002\u305d\u308c\u306f <strong>\u9285\u30b1\u30fc\u30d6\u30eb\u7528\u30ec\u30fc\u30c0\u30fc<\/strong> - \u58c1\u3092\u6398\u3063\u305f\u308a\u5207\u3063\u305f\u308a\u3059\u308b\u3053\u3068\u306a\u304f\u3001\u96a0\u308c\u305f\u554f\u984c\u3092\u300c\u898b\u629c\u304f\u300d\u3002.<\/p>\n\n\n\n<div class=\"wp-block-wd-divider wd-style-line wd-1f739f0e\"><\/div>\n\n\n\n<h1 class=\"wp-block-wd-title title wd-f2a13a1e\">OTDR\u3068\u306f\uff1f(\u5149\u6642\u9593\u9818\u57df\u53cd\u5c04\u7387\u8a08)<\/h1>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-e680e13c\"><strong>OTDR\u306fOptical Time-Domain Reflectometer\u306e\u7565\u3002<\/strong> - \u305d\u308c\u306f <em>\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u30d0\u30fc\u30b8\u30e7\u30f3<\/em> \u30b0\u30e9\u30b9\u30d5\u30a1\u30a4\u30d0\u30fc\u56de\u7dda\u7528\u306b\u7279\u5225\u306b\u4f5c\u3089\u308c\u305fTDR\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-wd-title title wd-f4969131\">\u30b3\u30a2\u306e\u57fa\u672c\u3068\u4ed5\u7d44\u307f<\/h2>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-f98e44e2\">OTDR\u306fTDR\u3068\u540c\u3058\u3088\u3046\u306b\u52d5\u4f5c\u3057\u307e\u3059\u304c\u3001\u96fb\u6c17\u30d1\u30eb\u30b9\u306e\u4ee3\u308f\u308a\u306b <strong>\u5149\u30d1\u30eb\u30b9<\/strong> \u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u30b1\u30fc\u30d6\u30eb\u306e\u30c0\u30a6\u30f3\u5149\u304c\u30d5\u30a1\u30a4\u30d0\u30fc\u5185\u3092\u901a\u904e\u3059\u308b\u969b\u3001\u5fae\u91cf\u306e\u6563\u4e71\uff08\u30ec\u30a4\u30ea\u30fc\u5f8c\u65b9\u6563\u4e71\uff09\u3084\u3001\u65ad\u7dda\u3001\u30b9\u30d7\u30e9\u30a4\u30b9\u3001\u30b3\u30cd\u30af\u30bf\u30fc\u3001\u5c48\u66f2\u3001\u30d5\u30a1\u30a4\u30d0\u30fc\u306e\u640d\u50b7\u306a\u3069\u306e\u554f\u984c\u304b\u3089\u53cd\u5c04\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-8c51a5cb\">OTDR\u306f <strong>\u623b\u308b\u5149\u306e\u6642\u9593\u3068\u5f37\u3055<\/strong> \u3092\u30d4\u30f3\u30dd\u30a4\u30f3\u30c8\u3067\u72d9\u3046\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u30b1\u30fc\u30d6\u30eb\u306e\u9577\u3055<\/strong><\/li>\n\n\n\n<li><strong>\u6b63\u78ba\u306a\u6545\u969c\u7b87\u6240\u306e\u7279\u5b9a<\/strong> (\u6298\u308c\u3001\u4e80\u88c2\u3001\u63a5\u7d9a\u4e0d\u826f\uff09\u3002<\/li>\n\n\n\n<li><strong>\u5149\u640d\u5931\/\u6e1b\u8870<\/strong> (\u30d5\u30a1\u30a4\u30d0\u30fc\u306e\u78e8\u8017\u3001\u63a5\u7d9a\u4e0d\u826f\u3001\u66f2\u304c\u308a\u306b\u3088\u308b\u4fe1\u53f7\u306e\u30d5\u30a7\u30fc\u30c9\uff09<\/li>\n\n\n\n<li><strong>\u30b9\u30d7\u30e9\u30a4\u30b9\u3068\u30b3\u30cd\u30af\u30bf\u30fc\u306e\u54c1\u8cea<\/strong> (\u9ad8\u901f\u30d5\u30a1\u30a4\u30d0\u30fc\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u4e0d\u53ef\u6b20\uff09<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-wd-title title wd-f759ba38\">OTDR\u306e\u4e00\u822c\u7684\u306a\u7528\u9014<\/h2>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-2815851b\">\u30c6\u30b9\u30c8\u3001\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3001\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9<strong>\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u30b1\u30fc\u30d6\u30eb<\/strong> - \u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30fb\u30d0\u30c3\u30af\u30dc\u30fc\u30f3\u30015G\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3001\u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc\u3001\u9577\u8ddd\u96e2\u901a\u4fe1\u3001\u9ad8\u901f\u30d6\u30ed\u30fc\u30c9\u30d0\u30f3\u30c9\u306b\u4f7f\u7528\u3055\u308c\u308b\u3002\u305d\u308c\u306f <strong>\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u7528\u30ec\u30fc\u30c0\u30fc<\/strong>, \u9ad8\u901f\u306e\u5149\u30d9\u30fc\u30b9\u306e\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3084\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u3092\u5186\u6ed1\u306b\u7dad\u6301\u3059\u308b\u305f\u3081\u306b\u4e0d\u53ef\u6b20\u306a\u3082\u306e\u3060\u3002.<\/p>\n\n\n\n<div class=\"wp-block-wd-divider wd-style-line wd-274dfbc0\"><\/div>\n\n\n\n<h1 class=\"wp-block-wd-title title wd-d6c38e5c\">\u4e3b\u306a\u9055\u3044TDR\u3068OTDR\u306e\u6bd4\u8f03\uff08\u4e00\u76ee\u3067\u308f\u304b\u308b\uff09<\/h1>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u7279\u5fb4<\/th><th class=\"has-text-align-left\" data-align=\"left\">TDR\uff08\u6642\u9593\u9818\u57df\u53cd\u5c04\u7387\u8a08\uff09<\/th><th class=\"has-text-align-left\" data-align=\"left\">OTDR (\u5149\u6642\u9593\u9818\u57df\u53cd\u5c04\u7387\u8a08)<\/th><\/tr><\/thead><tbody><tr><td><strong>\u4fe1\u53f7\u306e\u7a2e\u985e<\/strong><\/td><td>\u96fb\u6c17\u30d1\u30eb\u30b9<\/td><td>\u5149\u30d1\u30eb\u30b9<\/td><\/tr><tr><td><strong>\u30b1\u30fc\u30d6\u30eb\u30bf\u30a4\u30d7<\/strong><\/td><td>\u9285\/\u96fb\u6c17\u30b1\u30fc\u30d6\u30eb\uff08\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u3001\u540c\u8ef8\u3001\u96fb\u8a71\uff09<\/td><td>\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u30b1\u30fc\u30d6\u30eb\uff08\u30b0\u30e9\u30b9\u30d5\u30a1\u30a4\u30d0\u30fc\u3001\u9ad8\u901f\u30c7\u30fc\u30bf\uff09<\/td><\/tr><tr><td><strong>\u30b3\u30a2\u30b8\u30e7\u30d6<\/strong><\/td><td>\u30e1\u30bf\u30eb\u30b1\u30fc\u30d6\u30eb\u306e\u969c\u5bb3\u8a3a\u65ad\u3068\u9577\u3055\u6e2c\u5b9a<\/td><td>\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u969c\u5bb3\u3001\u640d\u5931\u3001\u30b9\u30d7\u30e9\u30a4\u30b9\u54c1\u8cea\u306e\u8a3a\u65ad<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-53114026\"><strong>\u30af\u30a4\u30c3\u30af\u30fb\u30c6\u30a4\u30af\u30a2\u30a6\u30a7\u30a4<\/strong>:TDR = \u30e1\u30bf\u30eb\u30fb\u30b1\u30fc\u30d6\u30eb\uff08\u96fb\u6c17\u4fe1\u53f7\uff09\u7528\u3001OTDR = \u30d5\u30a1\u30a4\u30d0\u30fc\u30fb\u30b1\u30fc\u30d6\u30eb\uff08\u5149\u4fe1\u53f7\uff09\u7528\u3002\u3069\u3061\u3089\u3082\u30b1\u30fc\u30d6\u30eb\u306e\u300c\u30ec\u30fc\u30c0\u30fc\u300d\u30c4\u30fc\u30eb\u3067\u3001\u96a0\u308c\u305f\u554f\u984c\u3092\u7d20\u65e9\u304f\u898b\u3064\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\uff01<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-a6393296\"><\/p>\n\n\n\n<a class=\"wp-block-wd-button btn btn-style-default btn-size-default btn-shape-rectangle wd-b7a19e89\" href=\"https:\/\/www.luleey.com\/ja\/product\/cable-fault-tester-8km-tdr-ll-tdr-8km\/\"><span>TDR\u00a0<\/span><\/a>","protected":false},"excerpt":{"rendered":"<p>\u6a5f\u80fd TDR\uff08\u6642\u9593\u9818\u57df\u53cd\u5c04\u7387\u8a08\uff09 OTDR\uff08\u5149\u6642\u9593\u9818\u57df\u53cd\u5c04\u7387\u8a08\uff09 \u4fe1\u53f7\u30bf\u30a4\u30d7 \u96fb\u6c17\u30d1\u30eb\u30b9 \u5149\u30d1\u30eb\u30b9 \u30b1\u30fc\u30d6\u30eb\u30bf\u30a4\u30d7 \u9285\/\u96fb\u6c17\u30b1\u30fc\u30d6\u30eb\uff08\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u3001\u540c\u8ef8\u3001,<\/p>","protected":false},"author":1,"featured_media":12627,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[886],"tags":[1144,58],"class_list":["post-20217","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-network-maintenance","tag-tdr","tag-otdr"],"_links":{"self":[{"href":"https:\/\/www.luleey.com\/ja\/wp-json\/wp\/v2\/posts\/20217","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.luleey.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.luleey.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.luleey.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.luleey.com\/ja\/wp-json\/wp\/v2\/comments?post=20217"}],"version-history":[{"count":0,"href":"https:\/\/www.luleey.com\/ja\/wp-json\/wp\/v2\/posts\/20217\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.luleey.com\/ja\/wp-json\/wp\/v2\/media\/12627"}],"wp:attachment":[{"href":"https:\/\/www.luleey.com\/ja\/wp-json\/wp\/v2\/media?parent=20217"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.luleey.com\/ja\/wp-json\/wp\/v2\/categories?post=20217"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.luleey.com\/ja\/wp-json\/wp\/v2\/tags?post=20217"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}