{"id":3578,"date":"2025-11-28T00:00:00","date_gmt":"2025-11-28T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/glossary\/what-is-physical-medium-dependent-pmd\/"},"modified":"2026-06-22T04:35:06","modified_gmt":"2026-06-22T04:35:06","slug":"what-is-physical-medium-dependent-pmd","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/ja\/glossary\/what-is-physical-medium-dependent-pmd","title":{"rendered":"\u5149\u30ea\u30f3\u30af\u5411\u3051 PMD\uff08\u7269\u7406\u30e1\u30c7\u30a3\u30a2\u4f9d\u5b58\uff09\u5b9f\u8df5\u30ac\u30a4\u30c9"},"content":{"rendered":"<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0cd5f86bb90c45a09b502f640fbf4abe.webp\" alt=\"PMD\uff08\u7269\u7406\u5a92\u4f53\u4f9d\u5b58\u90e8\uff09\" class=\"wp-image-3574\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0cd5f86bb90c45a09b502f640fbf4abe.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0cd5f86bb90c45a09b502f640fbf4abe-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0cd5f86bb90c45a09b502f640fbf4abe-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0cd5f86bb90c45a09b502f640fbf4abe-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0cd5f86bb90c45a09b502f640fbf4abe-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e <strong>\u7269\u7406\u5a92\u4f53\u4f9d\u5b58\uff08PMD\uff09<\/strong> \u30b5\u30d6\u30ec\u30a4\u30e4\u30fc\u306f\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u7269\u7406\u5c64\u306b\u304a\u3044\u3066\u6700\u3082\u91cd\u8981\u306a\u8981\u7d20\u306e1\u3064\u3067\u3059\u304c\u3001\u3057\u3070\u3057\u3070\u8aa4\u89e3\u3055\u308c\u3066\u3044\u307e\u3059\u3002PMD\uff08Physical Medium Dependent\uff1a\u7269\u7406\u5a92\u4f53\u4f9d\u5b58\uff09\u30b5\u30d6\u30ec\u30a4\u30e4\u30fc\u306f\u3001\u5358\u4e00\u30e2\u30fc\u30c9\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u3001\u30de\u30eb\u30c1\u30e2\u30fc\u30c9\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u3001\u30c0\u30a4\u30ec\u30af\u30c8\u30a2\u30bf\u30c3\u30c1\u9285\u7dda\u3001\u307e\u305f\u306f\u96fb\u6c17\u30d0\u30c3\u30af\u30d7\u30ec\u30fc\u30f3\u3068\u3044\u3063\u305f\u7279\u5b9a\u306e\u4f1d\u9001\u5a92\u4f53\u4e0a\u3067\u30d3\u30c3\u30c8\u3092\u7269\u7406\u7684\u306b\u9001\u4fe1\u304a\u3088\u3073\u53d7\u4fe1\u3059\u308b\u65b9\u6cd5\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a2d\u8a08\u8005\u3001\u8a66\u9a13\u30a8\u30f3\u30b8\u30cb\u30a2\u3001\u8abf\u9054\u30c1\u30fc\u30e0\u306b\u3068\u3063\u3066\u3001PMD\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u306a\u305c\u306a\u3089\u3001PMD\u306e\u4ed5\u69d8\u304c\u76f4\u63a5\u7684\u306b\u4ee5\u4e0b\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u304b\u3089\u3067\u3059\u3002 <strong>\u3053\u308c\u3089\u306e\u3044\u305a\u308c\u304b\u304c\u5931\u6557\u3059\u308b\u3068\u3001\u30ea\u30f3\u30af\u304c\u30c0\u30a6\u30f3\u3057\u305f\u307e\u307e\u306b\u306a\u308b\u304b\u4e0d\u5b89\u5b9a\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/strong>, <strong>\u30ec\u30fc\u30cb\u30f3\u30b0<\/strong>, <strong>\u4fe1\u53f7\u6574\u5408\u6027<\/strong>, \u304a\u3088\u3073 <strong>\u30c8\u30e9\u30f3\u30b7\u30fc\u30d0\u306e\u9078\u629e<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u672c\u30ac\u30a4\u30c9\u3067\u306f\u3001SFP\u3001SFP+\u3001QSFP\u30e2\u30b8\u30e5\u30fc\u30eb\u306a\u3069\u306e\u9078\u5b9a\u6642\u306b\u8a55\u4fa1\u3059\u3079\u304d\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u3092\u542b\u3081\u3001\u5c02\u9580\u7684\u304b\u3064\u898f\u683c\u6e96\u62e0\u306e\u5f62\u3067PMD\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\">\u30aa\u30d7\u30c6\u30a3\u30ab\u30eb\u30c8\u30e9\u30f3\u30b7\u30fc\u30d0\u30fc<\/a> \u305f\u3068\u3048\u3070SFP\u3001SFP+\u3001QSFP\u30e2\u30b8\u30e5\u30fc\u30eb\u306a\u3069\u3067\u3059\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u27a1\ufe0f Physical Medium Dependent\uff08PMD\uff1a\u7269\u7406\u5a92\u4f53\u4f9d\u5b58\uff09\u30b5\u30d6\u30ec\u30a4\u30e4\u30fc\u3068\u306f\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e <strong>\u7269\u7406\u5a92\u4f53\u4f9d\u5b58\uff08PMD\uff09<\/strong> \u30b5\u30d6\u30ec\u30a4\u30e4\u30fc\u306f\u3001 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ja\/knowledge-center\/ieee-802-3-%e3%82%a4%e3%83%bc%e3%82%b5%e3%83%8d%e3%83%83%e3%83%88%e8%a6%8f%e6%a0%bc%e3%81%ae%e8%a7%a3%e8%aa%ac\/\">SFP\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u691c\u51fa<\/a> PHY\u306e\u6700\u3082\u4e0b\u4f4d\u306e\u6a5f\u80fd\u30d6\u30ed\u30c3\u30af\u3067\u3059\u3002\u3053\u308c\u306f\u3001\u9078\u629e\u3055\u308c\u305f\u5a92\u4f53\u3092\u4ecb\u3057\u305f\u901a\u4fe1\u3092\u6210\u529f\u88cf\u306b\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u3001 <strong>\u5149\u7684\u307e\u305f\u306f\u96fb\u6c17\u7684\u306a\u7279\u6027\u3092<\/strong> \u5b9a\u7fa9\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b9f\u969b\u306e\u88fd\u54c1\u306b\u304a\u3044\u3066\u3001PMD\u306f\u5149\u30c8\u30e9\u30f3\u30b7\u30fc\u30d0\u306e\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u30fb\u30a4\u30f3\u30bf\u30d5\u30a7\u30fc\u30b9\u3001\u3059\u306a\u308f\u3061\u305d\u306e\u30ec\u30fc\u30b6\u30fc\u3001\u53d7\u5149\u7528\u30d5\u30a9\u30c8\u30c0\u30a4\u30aa\u30fc\u30c9\u3001\u5909\u8abf\u56de\u8def\u304a\u3088\u3073\u95a2\u9023\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306b\u5bfe\u5fdc\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >PMD\u304c\u5236\u5fa1\u3059\u308b\u3082\u306e<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u5149\u6ce2\u9577\u304a\u3088\u3073\u30b9\u30da\u30af\u30c8\u30eb\u5e45<\/p><\/li><li><p>\u9001\u4fe1\uff08Tx\uff09\u5e73\u5747\u51fa\u529b\u304a\u3088\u3073\u51fa\u529b\u6761\u4ef6<\/p><\/li><li><p>\u53d7\u4fe1\uff08Rx\uff09\u611f\u5ea6\u304a\u3088\u3073\u30aa\u30fc\u30d0\u30fc\u30ed\u30fc\u30c9\u9650\u754c<\/p><\/li><li><p>\u5149 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ja\/knowledge-center\/%e3%82%aa%e3%83%97%e3%83%86%e3%82%a3%e3%82%ab%e3%83%ab%e3%83%88%e3%83%a9%e3%83%b3%e3%82%b9%e3%83%9f%e3%83%83%e3%82%bf%e3%83%bc%e3%81%ae%e3%83%aa%e3%83%88%e3%83%a9%e3%82%b9%e3%83%a9%e3%82%b9%e3%83%90\/\">\u30ea\u30bf\u30fc\u30f3\u30ed\u30b9<\/a> \u304a\u3088\u3073\u6d88\u6ec5\u6bd4\uff08extinction ratio\uff09<\/p><\/li><li><p>\u5bfe\u5fdc\u3059\u308b\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u30bf\u30a4\u30d7\u304a\u3088\u3073\u30ea\u30f3\u30af\u8ddd\u96e2<\/p><\/li><li><p>\u96fb\u6c17PHY\u306b\u304a\u3051\u308b\u9001\u4fe1\uff0f\u53d7\u4fe1\u306e\u30a2\u30a4\u30de\u30b9\u30af\uff08electrical transmit\/receive eye masks\uff09<\/p><\/li><li><p>\u9069\u5408\u6027\u6e2c\u5b9a\u306e\u305f\u3081\u306e\u30c6\u30b9\u30c8\u30dd\u30a4\u30f3\u30c8\u5b9a\u7fa9<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">PMD\u306f\u3001 <strong>\u6a19\u6e96\u5316\u3055\u308c\u305fPHY\u30ed\u30b8\u30c3\u30af\u3068\u7269\u7406\u4e16\u754c\u3092\u7d50\u3076<\/strong>, \u300c\u6a4b\u6e21\u3057\u300d\u306e\u5f79\u5272\u3092\u679c\u305f\u3057\u3001\u8907\u6570\u30d9\u30f3\u30c0\u30fc\u306e\u30c8\u30e9\u30f3\u30b7\u30fc\u30d0\u304c\u540c\u4e00\u306e\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u8a2d\u5099\u4e0a\u3067\u76f8\u4e92\u904b\u7528\u53ef\u80fd\u3067\u3042\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u27a1\ufe0f PMD\u3068\u4ed6\u306ePHY\u30b5\u30d6\u30ec\u30a4\u30e4\u30fc\u3068\u306e\u6bd4\u8f03<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8PHY\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306b\u306f\u901a\u5e38\u3001\u4ee5\u4e0b\u306e\u8981\u7d20\u304c\u542b\u307e\u308c\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ja\/glossary\/pcs-physical-coding-sublayer-ethernet-explained\/\"><strong>PCS\uff08\u7269\u7406\u7b26\u53f7\u5316\u30b5\u30d6\u30ec\u30a4\u30e4\uff09<\/strong> <\/a>\u2014 \u7b26\u53f7\u5316\uff08\u4f8b\uff1a64b\/66b\uff09\u3001, <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ja\/glossary\/fec-forward-error-correction-in-optical-communication\/\">SFP\u30ea\u30f3\u30af\u306e\u610f\u5473\u3092\u7406\u89e3\u3059\u308b<\/a>, \u304a\u3088\u3073\u30ec\u30fc\u30f3\u5206\u914d\uff08lane distribution\uff09<\/p><\/li><li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ja\/glossary\/pma-physical-medium-attachment-ethernet-explained\/\"><strong>PMA\uff08\u7269\u7406\u5a92\u4f53\u30a2\u30bf\u30c3\u30c1\u30e1\u30f3\u30c8\uff09<\/strong><\/a> \u2014 \u30b7\u30ea\u30a2\u30eb\u5316\uff0f\u30c7\u30b7\u30ea\u30a2\u30e9\u30a4\u30ba\u3001\u30af\u30ed\u30c3\u30af\u30ea\u30ab\u30d0\u30ea\u30fc<\/p><\/li><li><p><strong>PMD\uff08\u7269\u7406\u5a92\u4f53\u4f9d\u5b58\u90e8\uff09<\/strong> \u2014 \u30e1\u30c7\u30a3\u30a2\u56fa\u6709\u306e\u5149\u7684\uff0f\u96fb\u6c17\u7684\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">PMD\u306f\u3001\u5149\u5b66\u7684\u4e88\u7b97\u304a\u3088\u3073\u5a92\u4f53\u30bf\u30a4\u30d7\u306b\u76f4\u63a5\u95a2\u4fc2\u3059\u308b\u90e8\u5206\u3067\u3059\u3002.<br\/>\u5358\u4e00\u306eMAC\u306f\u3001\u305d\u308c\u305e\u308c\u7570\u306a\u308b\u5230\u9054\u8ddd\u96e2\u307e\u305f\u306f\u4f1d\u9001\u5a92\u4f53\u306b\u6700\u9069\u5316\u3055\u308c\u305f\u8907\u6570\u306ePMD\uff08\u4f8b\uff1aSR\u3001LR\u3001ER\uff09\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u27a1\ufe0f \u5b9f\u969b\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u304a\u3044\u3066PMD\u304c\u91cd\u8981\u306a\u7406\u7531<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/27e048578ea044bf9f40c798076a3c34.webp\" alt=\"Real Networks\u306b\u304a\u3044\u3066PMD\u304c\u91cd\u8981\u306a\u7406\u7531\" class=\"wp-image-3575\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/27e048578ea044bf9f40c798076a3c34.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/27e048578ea044bf9f40c798076a3c34-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/27e048578ea044bf9f40c798076a3c34-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/27e048578ea044bf9f40c798076a3c34-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/27e048578ea044bf9f40c798076a3c34-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >\u4fdd\u8a3c\u3055\u308c\u305f\u76f8\u4e92\u904b\u7528\u6027<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u540c\u3058PMD\u4ed5\u69d8\u306b\u6e96\u62e0\u3059\u308b\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u307f\u304c\u78ba\u5b9f\u306b\u30ea\u30f3\u30af\u30a2\u30c3\u30d7\u3057\u307e\u3059\u3002\u6ce2\u9577\u3001\u51fa\u529b\u30ec\u30d9\u30eb\u3001\u611f\u5ea6\u306fIEEE\u8981\u4ef6\u3068\u4e00\u81f4\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u4e88\u6e2c\u53ef\u80fd\u306a\u30ea\u30f3\u30af\u5230\u9054\u8ddd\u96e2<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">PMD\u30d1\u30e9\u30e1\u30fc\u30bf\u306f\u30ea\u30f3\u30af\u640d\u5931\u4e88\u7b97\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u9001\u4fe1\uff08Tx\uff09\u51fa\u529b\u304c\u20133 dBm\uff5e+3 dBm\u3001\u53d7\u4fe1\uff08Rx\uff09\u611f\u5ea6\u304c\u201314 dBm\u3068\u6307\u5b9a\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u3001\u4f7f\u7528\u53ef\u80fd\u306a\u5149\u4e88\u7b97\u306f\u3053\u308c\u3089\u306e\u6570\u5024\u304b\u3089\u7b97\u51fa\u3055\u308c\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u7cbe\u78ba\u306a\u8a66\u9a13\u304a\u3088\u3073\u9069\u5408\u6027\u78ba\u8a8d<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">PMD\u306f\u6a19\u6e96\u5316\u3055\u308c\u305f\u8a66\u9a13\u30dd\u30a4\u30f3\u30c8\uff08\u4f8b\uff1aTP2\u3001TP3\uff09\u3092\u5b9a\u7fa9\u3057\u3066\u304a\u308a\u3001\u5149\u51fa\u529b\u3001\u30b8\u30c3\u30bf\u3001\u30a2\u30a4\u30fb\u30c0\u30a4\u30a2\u30b0\u30e9\u30e0\u3092\u4e00\u8cab\u3057\u3066\u6e2c\u5b9a\u3059\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u6642\u9593\u7d4c\u904e\u306b\u3088\u308b\u4fe1\u983c\u6027<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">PMD\u30de\u30fc\u30b8\u30f3\u304c\u5927\u304d\u3044\u30e2\u30b8\u30e5\u30fc\u30eb\u306f\u3001\u7d4c\u5e74\u52a3\u5316\u3001\u6e29\u5ea6\u5909\u52d5\u3001\u30d5\u30a1\u30a4\u30d0\u6c5a\u67d3\u3001\u30b3\u30cd\u30af\u30bf\u53cd\u5c04\u306b\u5bfe\u3057\u3066\u3001\u6700\u5c0f\u8981\u4ef6\u3067\u8a2d\u8a08\u3055\u308c\u305f\u30e2\u30b8\u30e5\u30fc\u30eb\u3088\u308a\u3082\u512a\u308c\u305f\u8010\u6027\u3092\u793a\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u27a1\ufe0f \u8a55\u4fa1\u5fc5\u9808\u306e\u4e3b\u8981PMD\u30d1\u30e9\u30e1\u30fc\u30bf<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5404PMD\u4ed5\u69d8\u306b\u306f\u3001\u3044\u304f\u3064\u304b\u306e\u91cd\u8981\u306a\u5149\u5b66\u7684\u304a\u3088\u3073\u96fb\u6c17\u7684\u6307\u6a19\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u9069\u5207\u306a\u30e2\u30b8\u30e5\u30fc\u30eb\u9078\u5b9a\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u6ce2\u9577\uff08\u03bb\uff09\u304a\u3088\u3073\u30b9\u30da\u30af\u30c8\u30eb\u5e45<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u822c\u7684\u306a\u5024\u306b\u306f\u4ee5\u4e0b\u304c\u542b\u307e\u308c\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ja\/knowledge-center\/850nm-optical-transceivers-for-short-reach-mmf-transmission\/\"><strong>850nm<\/strong><\/a> \u2014 \u77ed\u8ddd\u96e2\u30de\u30eb\u30c1\u30e2\u30fc\u30c9\uff08SR\uff09<\/p><\/li><li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ja\/knowledge-center\/1310nm%e5%85%89%e3%83%a2%e3%82%b8%e3%83%a5%e3%83%bc%e3%83%ab%e3%81%ae%e7%94%a8%e9%80%94%e5%88%a5%e6%80%a7%e8%83%bd%e6%af%94%e8%bc%83\/\"><strong>1310nm<\/strong><\/a> \u2014 \u5358\u4e00\u30e2\u30fc\u30c9\u4e2d\u8ddd\u96e2\uff08LR\uff09<\/p><\/li><li><p>LX\u3001BX\u3001CWDM\u3001DWDM\u5404\u30d0\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\u306e\u7279\u5b9a\u7bc4\u56f2<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u30b9\u30da\u30af\u30c8\u30eb\u5e45\u306f\u3001\u7279\u306b\u9577\u8ddd\u96e2\u30ea\u30f3\u30af\u306b\u304a\u3044\u3066\u5206\u6563\u6027\u80fd\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u9001\u4fe1\u5668\uff08Tx\uff09\u5e73\u5747\u51fa\u529b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u5c0f\u304a\u3088\u3073\u6700\u5927\u51fa\u529b\u96fb\u529b\u3092\u898f\u5b9a\u3057\u307e\u3059\u3002.<br\/>\u4f4e\u3059\u304e\u308b\u3068\u2192\u53d7\u4fe1\u6a5f\u307e\u3067\u30ea\u30f3\u30af\u304c\u5230\u9054\u3057\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<br\/>\u9ad8\u3059\u304e\u308b\u3068\u2192\u53d7\u4fe1\u6a5f\u306e\u30aa\u30fc\u30d0\u30fc\u30ed\u30fc\u30c9\u3084\u975e\u7dda\u5f62\u52b9\u679c\u3092\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u53d7\u4fe1\u611f\u5ea6\u304a\u3088\u3073\u30aa\u30fc\u30d0\u30fc\u30ed\u30fc\u30c9<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>\u611f\u5ea6\uff1a<\/strong> \u53d7\u4fe1\u6a5f\u304c\u30d3\u30c3\u30c8\u30a8\u30e9\u30fc\u7387\uff08BER\uff09\u8981\u4ef6\u3092\u6e80\u305f\u3059\u6700\u4f4e\u306e\u5165\u529b\u96fb\u529b\u30ec\u30d9\u30eb<\/p><\/li><li><p><strong>\u30aa\u30fc\u30d0\u30fc\u30ed\u30fc\u30c9\uff1a<\/strong> \u4fe1\u53f7\u6b6a\u307f\u304c\u767a\u751f\u3059\u308b\u76f4\u524d\u306e\u6700\u5927\u5165\u529b\u96fb\u529b<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e2\u3064\u306e\u5024\u306b\u3088\u308a\u3001\u4f7f\u7528\u53ef\u80fd\u306a <strong>\u5149\u5b66\u30d1\u30ef\u30fc\u30fb\u30d0\u30b8\u30a7\u30c3\u30c8<br><\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u6d88\u6ec5\u6bd4\u304a\u3088\u3073\u53cd\u5c04\u640d\u5931<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ja\/glossary\/extinction-ratio-importance-signal-quality-data-reliability\/\"><strong>\u6d88\u6ec5\u6bd4<\/strong><\/a> \u8ad6\u7406\u300c1\u300d\u3068\u300c0\u300d\u3092\u660e\u78ba\u306b\u533a\u5225\u3059\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002\u201c<\/p><\/li><li><p><strong>\u5149\u53cd\u5c04\u640d\u5931<\/strong> \u53cd\u5c04\u306b\u5bfe\u3059\u308b\u8010\u6027\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u2014\u9577\u8ddd\u96e2\u5358\u4e00\u30e2\u30fc\u30c9\u533a\u9593\u3067\u306f\u6975\u3081\u3066\u91cd\u8981\u3067\u3059\u3002.<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" >\u5bfe\u5fdc\u30d5\u30a1\u30a4\u30d0\u7a2e\u5225\u304a\u3088\u3073\u5230\u9054\u8ddd\u96e2<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">PMD\u30c6\u30fc\u30d6\u30eb\u3067\u306f\u4ee5\u4e0b\u3092\u898f\u5b9a\u3057\u3066\u3044\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>OM2\/OM3\/OM4\u30de\u30eb\u30c1\u30e2\u30fc\u30c9\u30d5\u30a1\u30a4\u30d0\u306b\u304a\u3051\u308b\u5230\u9054\u8ddd\u96e2<\/p><\/li><li><p>G.652\/G.655\u5358\u4e00\u30e2\u30fc\u30c9\u30d5\u30a1\u30a4\u30d0\u306b\u304a\u3051\u308b\u5230\u9054\u8ddd\u96e2<\/p><\/li><li><p>IEEE\u306e\u96fb\u529b\u4e88\u7b97\u306b\u57fa\u3065\u304f\u6700\u5927\u30b5\u30dd\u30fc\u30c8\u9577<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" >\u27a1\ufe0f \u5149\u30c8\u30e9\u30f3\u30b7\u30fc\u30d0\u9078\u5b9a\u306b\u304a\u3051\u308bPMD\u306e\u5f79\u5272<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5149\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u9078\u5b9a\u3059\u308b\u969b\u306b\u306f <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ja\/knowledge-center\/%e3%83%87%e3%83%bc%e3%82%bf%e3%82%bb%e3%83%b3%e3%82%bf%e3%83%bc%e3%81%a8%e3%81%af%e4%bd%95%e3%81%8b\/\">\u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc<\/a>, \u3001\u7523\u696d\u7528\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3001\u307e\u305f\u306f\u901a\u4fe1\u30a4\u30f3\u30d5\u30e9\u306b\u304a\u3044\u3066\u3001PMD\u6e96\u62e0\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3067\u4ee5\u4e0b\u304c\u4fdd\u8a3c\u3055\u308c\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u5b9f\u969b\u306eIEEE\u76f8\u4e92\u904b\u7528\u6027<\/p><\/li><li><p>\u65e2\u5b58\u306e\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u4e0a\u3067\u306e\u6b63\u3057\u3044\u4f1d\u9001\u8ddd\u96e2<\/p><\/li><li><p>\u4e88\u6e2c\u53ef\u80fd\u306a\u640d\u5931\u30de\u30fc\u30b8\u30f3<\/p><\/li><li><p>\u6e29\u5ea6\u30b9\u30c8\u30ec\u30b9\u3084\u30ce\u30a4\u30ba\u306e\u591a\u3044\u74b0\u5883\u4e0b\u3067\u3082\u5805\u7262\u306a\u6027\u80fd<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u305f\u3068\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u9078\u629e\u306f <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/475415.htm\"><strong>10GBASE-SR<\/strong><\/a>, <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/475586.htm\"><strong>10GBASE-LR<\/strong><\/a>, \u304a\u3088\u3073 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/476054.htm\"><strong>10GBASE-ER<\/strong><\/a> \u305d\u308c\u305e\u308c300m\u300110km\u300140km\u5411\u3051\u306b\u6700\u9069\u5316\u3055\u308c\u305f\u7570\u306a\u308bPMD\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u306b\u4ed6\u306a\u308a\u307e\u305b\u3093\u3002.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/31aebd7127984c4e95dcb31cf479990b.webp\" alt=\"10GBASE-SR\u300110GBASE-LR\u3001\u304a\u3088\u307310GBASE-E\" class=\"wp-image-3576\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/31aebd7127984c4e95dcb31cf479990b.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/31aebd7127984c4e95dcb31cf479990b-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/31aebd7127984c4e95dcb31cf479990b-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/31aebd7127984c4e95dcb31cf479990b-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/31aebd7127984c4e95dcb31cf479990b-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" >\u27a1\ufe0f \u4f8b\uff1aPMD\u6982\u8981\u8868 <\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><em>\u5024\u3092\u3001\u9078\u629e\u3057\u305f <\/em><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/file\/datasheet\/ls-sm3110-10c.pdf\"><em>SFP+\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u306b\u8a18\u8f09\u3055\u308c\u305f\u6b63\u78ba\u306a\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u306b\u7f6e\u304d\u63db\u3048\u3066\u304f\u3060\u3055\u3044\u3002<\/em><\/a><em>.<\/em><\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"width: 220px;\"\/><col style=\"width: 214px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\" colwidth=\"220\"><p>PMD\u5c5e\u6027<\/p><\/th><th colspan=\"1\" rowspan=\"1\" colwidth=\"214\"><p>\u4ee3\u8868\u5024<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\u8aac\u660e<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"220\"><p>\u6ce2\u9577<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"214\"><p>1310nm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u30b7\u30f3\u30b0\u30eb\u30e2\u30fc\u30c9\u3001\u30ed\u30f3\u30b0\u30ea\u30fc\u30c1\u7528\u30ec\u30fc\u30b6\u30fc<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"220\"><p>\u9001\u4fe1\u51fa\u529b\uff08\u6700\u5c0f\uff0f\u6700\u5927\uff09<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"214\"><p>\u20133dBm\uff0f\uff0b3dBm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u9001\u4fe1\u51fa\u529b\u7bc4\u56f2<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"220\"><p>\u53d7\u4fe1\u611f\u5ea6<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"214\"><p>\u201314dBm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u30d3\u30c3\u30c8\u30a8\u30e9\u30fc\u7387\uff08BER\uff09\u6e96\u62e0\u306e\u305f\u3081\u306e\u6700\u4f4e\u96fb\u529b<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"220\"><p>\u53d7\u4fe1\u904e\u8ca0\u8377<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"214\"><p>\uff0b1dBm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u5b89\u5168\u306a\u6700\u5927\u5165\u529b\u96fb\u529b<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"220\"><p>\u4f1d\u9001\u8ddd\u96e2<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"214\"><p>10km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u306e\u640d\u5931\u304a\u3088\u3073\u30b9\u30d7\u30e9\u30a4\u30b9\u6570\u306b\u4f9d\u5b58<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"220\"><p>\u6d88\u6ec5\u6bd4<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"214\"><p>\u22653.5dB<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u30ec\u30fc\u30b6\u30fc\u5909\u8abf\u54c1\u8cea<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" >\u27a1\ufe0f PMD\u306e\u8a66\u9a13\u304a\u3088\u3073\u6e96\u62e0\u78ba\u8a8d<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u660e\u78ba\u306b\u5b9a\u7fa9\u3055\u308c\u305fPMD\u8a66\u9a13\u306b\u3088\u308a\u3001\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u76f8\u4e92\u904b\u7528\u6027\u304c\u78ba\u4fdd\u3055\u308c\u307e\u3059\u3002.<br\/>\u4e3b\u306a\u6e2c\u5b9a\u9805\u76ee\u306b\u306f\u4ee5\u4e0b\u304c\u542b\u307e\u308c\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u9001\u4fe1\u5074\u304a\u3088\u3073\u53d7\u4fe1\u5074\u306b\u304a\u3051\u308b\u5149\u51fa\u529b<\/p><\/li><li><p>\u30a2\u30a4\u30de\u30b9\u30af\u6e96\u62e0\u6027<\/p><\/li><li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ja\/knowledge-center\/jitter-in-optics-causes-effects-measurement-reduction\/\">\u30b8\u30c3\u30bf<\/a> 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class=\"wp-block-paragraph\">\u30b3\u30cd\u30af\u30bf\u306e\u6e05\u6383\u72b6\u614b\u3001\u4e88\u671f\u3057\u306a\u3044\u30d5\u30a1\u30a4\u30d0\u640d\u5931\u3001\u307e\u305f\u306f\u904e\u5ea6\u306a\u30d1\u30c3\u30c1\u30f3\u30b0\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u9577\u8ddd\u96e2\u30b9\u30d1\u30f3\u306b\u304a\u3051\u308b\u30ea\u30f3\u30af\u306e\u30d5\u30e9\u30c3\u30d4\u30f3\u30b0<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u9001\u4fe1\uff08Tx\uff09\u96fb\u529b\u306e\u7d4c\u5e74\u52a3\u5316\u3084\u611f\u5ea6\u306e\u9650\u754c\u3092\u691c\u67fb\u3057\u307e\u3059\u3002\u5149\u5b66\u7684\u4e88\u7b97\u304c\u904e\u5270\u306b\u53b3\u3057\u304f\u306a\u3063\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u30de\u30eb\u30c1\u30e2\u30fc\u30c9\u306e\u5230\u9054\u8ddd\u96e2\u304c\u4e88\u60f3\u3088\u308a\u77ed\u3044<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">OM3\/OM4\u306e\u4e92\u63db\u6027\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u5e2f\u57df\u5e45\u5236\u9650\u306f\u30e1\u30c7\u30a3\u30a2\u56fa\u6709\u3067\u3059\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u27a1\ufe0f \u7d50\u8ad6<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e <strong>\u7269\u7406\u5a92\u4f53\u4f9d\u5b58\uff08PMD\uff09<\/strong> 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class=\"wp-block-paragraph\">\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u5c55\u958b\u307e\u305f\u306f\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u3092\u884c\u3046\u7d44\u7e54\u306b\u3068\u3063\u3066\u3001PMD\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u9069\u5207\u306a\u5149\u5b66\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u9078\u5b9a\u3057\u3001\u4fe1\u983c\u6027\u304c\u9ad8\u304f\u3001\u6a19\u6e96\u6e96\u62e0\u304b\u3064\u5c06\u6765\u306b\u5bfe\u5fdc\u53ef\u80fd\u306a\u30ea\u30f3\u30af\u3092\u8a2d\u8a08\u3059\u308b\u4e0a\u3067\u6975\u3081\u3066\u91cd\u8981\u3067\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\"><strong>LINK-PP\u306e\u5149\u30c8\u30e9\u30f3\u30b7\u30fc\u30d0\u30fc<\/strong><\/a> 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