{"id":3568,"date":"2025-11-28T00:00:00","date_gmt":"2025-11-28T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/pcs-pma-pmd-work-together\/"},"modified":"2026-06-22T04:34:01","modified_gmt":"2026-06-22T04:34:01","slug":"pcs-pma-pmd-work-together","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/ja\/knowledge-center\/pcs-pma-pmd-work-together","title":{"rendered":"PCS\u3001PMA\u3001\u304a\u3088\u3073PMD\u306e\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8PHY\u30ec\u30a4\u30e4\u30fc\u304c\u5354\u8abf\u3057\u3066\u52d5\u4f5c\u3059\u308b\u4ed5\u7d44\u307f"},"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\/d23fa6e6358741de8a06b78eb2e16176.webp\" alt=\"How PCS, PMA, and PMD Work Together\" class=\"wp-image-3564\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/d23fa6e6358741de8a06b78eb2e16176.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/d23fa6e6358741de8a06b78eb2e16176-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/d23fa6e6358741de8a06b78eb2e16176-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/d23fa6e6358741de8a06b78eb2e16176-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/d23fa6e6358741de8a06b78eb2e16176-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u65b0\u306e\u9ad8\u901f\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\uff0810G\u300125G\u300140G\u3001100G\u304a\u3088\u3073\u305d\u308c\u4ee5\u4e0a\uff09\u306f\u3001MAC\u5c64\u304b\u3089\u7269\u7406\u4f1d\u9001\u5a92\u4f53\u3078\u30c7\u30fc\u30bf\u3092\u78ba\u5b9f\u306b\u9001\u4fe1\u3059\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3059\u308b\u968e\u5c64\u5316\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306b\u4f9d\u5b58\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30ec\u30a4\u30e4\u30fc\u306e\u3046\u3061\u3001, <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>, <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>, \u304a\u3088\u3073 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ja\/glossary\/what-is-physical-medium-dependent-pmd\/\"><strong>PMD\uff08\u7269\u7406\u5a92\u4f53\u4f9d\u5b58\u90e8\uff09<\/strong><\/a> \u304c\u7269\u7406\u5c64\uff08PHY\uff09\u30b9\u30bf\u30c3\u30af\u306e\u4e2d\u6838\u3092\u6210\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e92\u3044\u306b\u5bc6\u63a5\u306b\u95a2\u9023\u3057\u3066\u3044\u308b\u3082\u306e\u306e\u3001\u5404\u30ec\u30a4\u30e4\u30fc\u306f\u305d\u308c\u305e\u308c\u56fa\u6709\u306e\u6a5f\u80fd\u3092\u62c5\u3044\u307e\u3059\u3002\u305d\u308c\u3089\u304c\u3069\u306e\u3088\u3046\u306b\u5354\u8abf\u3057\u3066\u52d5\u4f5c\u3059\u308b\u304b\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a8\u30f3\u30b8\u30cb\u30a2\u3001\u5149\u30e2\u30b8\u30e5\u30fc\u30eb\u8a2d\u8a08\u8005\u3001\u304a\u3088\u3073\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u30c8\u30e9\u30f3\u30b7\u30fc\u30d0\u3084\u63a5\u7d9a\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u3092\u8a55\u4fa1\u3059\u308b\u3059\u3079\u3066\u306e\u4eba\u306b\u3068\u3063\u3066\u4e0d\u53ef\u6b20\u3067\u3059\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u5404\u30ec\u30a4\u30e4\u30fc\u306e\u5f79\u5272<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" ><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ja\/glossary\/pcs-physical-coding-sublayer-ethernet-explained\/\">PCS \u2014 \u7269\u7406\u7b26\u53f7\u5316\u30b5\u30d6\u30ec\u30a4\u30e4\u30fc\uff08Physical Coding Sublayer\uff09<\/a><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">PCS\u306f\u3001 <strong>\u30c7\u30fc\u30bf\u7b26\u53f7\u5316\u3001\u30d6\u30ed\u30c3\u30af\u6574\u5217\u3001\u30ec\u30fc\u30f3\u5206\u914d\u3001\u304a\u3088\u3073\u30a8\u30e9\u30fc\u691c\u51fa\u3092\u51e6\u7406\u3057\u307e\u3059\u3002<\/strong>.<br\/>\u4e3b\u306a\u8cac\u4efb\u306b\u306f\u4ee5\u4e0b\u304c\u542b\u307e\u308c\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u7b26\u53f7\u5316\u65b9\u5f0f\uff088b\/10b\u300164b\/66b\u3001256b\/257b\uff09<\/p><\/li><li><p>\u30ec\u30fc\u30f3\u30b9\u30c8\u30e9\u30a4\u30d4\u30f3\u30b0\u304a\u3088\u3073\u30c7\u30b9\u30ad\u30e5\u30fc\uff08\u30de\u30eb\u30c1\u30ec\u30fc\u30f3\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u5411\u3051\uff09<\/p><\/li><li><p>\u30ef\u30fc\u30c9\u6574\u5217\u304a\u3088\u3073\u30d5\u30ec\u30fc\u30e0\u533a\u5207\u308a<\/p><\/li><li><p>\u30a8\u30e9\u30fc\u76e3\u8996\uff08\u30d3\u30c3\u30c8\u8aa4\u308a\u7387BER\u3001\u30d6\u30ed\u30c3\u30af\u30a8\u30e9\u30fc\uff09<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>PCS\u306fMAC\u5c64\u306e\u30c7\u30fc\u30bf\u3092\u3001<\/strong> \u9ad8\u901f\u30b7\u30ea\u30a2\u30eb\u5316\u306b\u9069\u3057\u305f\u7b26\u53f7\u5316\u30d3\u30c3\u30c8\u30b9\u30c8\u30ea\u30fc\u30e0\u306b\u5909\u63db\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" ><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ja\/glossary\/pma-physical-medium-attachment-ethernet-explained\/\">PMA \u2014 \u7269\u7406\u5a92\u4f53\u30a2\u30bf\u30c3\u30c1\u30e1\u30f3\u30c8\uff08Physical Medium Attachment\uff09<\/a><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">PMA\u306f\u3001 <strong>\u30b7\u30ea\u30a2\u30eb\u5316\uff0f\u30c7\u30b7\u30ea\u30a2\u30eb\u5316\u3001<\/strong>, <strong>\u30af\u30ed\u30c3\u30af\u5fa9\u5143<\/strong>, \u304a\u3088\u3073 <strong>\u96fb\u6c17\u7684\u30a2\u30c0\u30d7\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u62c5\u5f53\u3057\u3001<\/strong> PCS\u3068PMD\u306e\u9593\u3067\u6a5f\u80fd\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e3b\u306a\u6a5f\u80fd\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3067\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\/serdes-interfaces-high-speed-data-transfer-and-signal-integrity\/\"><strong>SerDes<\/strong><\/a> \uff08\u4e26\u5217\u2192\u76f4\u5217\u5909\u63db\u304a\u3088\u3073\u76f4\u5217\u2192\u4e26\u5217\u5909\u63db\uff09<\/p><\/li><li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ja\/glossary\/clock-and-data-recovery-in-modern-communication-systems\/\"><strong>CDR<\/strong><\/a> \uff08\u30af\u30ed\u30c3\u30af\u304a\u3088\u3073\u30c7\u30fc\u30bf\u5fa9\u65e7\uff09<\/p><\/li><li><p>\u4f1d\u9001\u7528\u306e\u5b89\u5b9a\u3057\u305f\u9ad8\u901f\u30d3\u30c3\u30c8\u30b9\u30c8\u30ea\u30fc\u30e0\u306e\u751f\u6210<\/p><\/li><li><p>\u8907\u6570\u30ec\u30fc\u30f3\u306e\u7d50\u5408\uff08\u4f8b\uff1a4\u00d725G \u2192 100G\uff09<\/p><\/li><li><p>\u30c8\u30e9\u30f3\u30b7\u30fc\u30d0\u5185\u90e8\u306b\u304a\u3051\u308b\u96fb\u6c17PHY\u30a4\u30f3\u30bf\u30d5\u30a7\u30fc\u30b9\u306e\u51e6\u7406<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>PMA\u306f\u3001\u4fe1\u53f7\u304c\u30af\u30ea\u30fc\u30f3\u3067\u540c\u671f\u3055\u308c\u3001\u7269\u7406\u5a92\u4f53\u4e0a\u3067\u306e\u4f1d\u9001\u306b\u5099\u3048\u3066\u3044\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002.<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" ><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ja\/glossary\/what-is-physical-medium-dependent-pmd\/\">PMD \u2014 \u7269\u7406\u5a92\u4f53\u4f9d\u5b58\u30ec\u30a4\u30e4\u30fc\uff08Physical Medium Dependent\uff09<\/a><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">PMD\u306f\u3001 <strong>\u5b9f\u969b\u306e\u4f1d\u9001\u5a92\u4f53\uff08<\/strong>, \u5149\u30d5\u30a1\u30a4\u30d0\u3001\u9285\u7dda\u3001DAC\u3001AOC\u306a\u3069\uff09\u3068\u76f4\u63a5\u76f8\u4e92\u4f5c\u7528\u3059\u308b\u30ec\u30a4\u30e4\u30fc\u3067\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">PMD\u306b\u306f\u4ee5\u4e0b\u304c\u542b\u307e\u308c\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u5149\u30c8\u30e9\u30f3\u30b9\u30df\u30c3\u30bf\uff0f\u30ec\u30b7\u30fc\u30d0\uff08\u4f8b\uff1a\u30ec\u30fc\u30b6\u30fc\u3001\u30d5\u30a9\u30c8\u30c0\u30a4\u30aa\u30fc\u30c9\uff09<\/p><\/li><li><p>\u96fb\u6c17\u30c9\u30e9\u30a4\u30d0\u304a\u3088\u3073\u30a2\u30f3\u30d7\u30ea\u30d5\u30a1\u30a4\u30a2<\/p><\/li><li><p>\u6ce2\u9577\u9078\u629e<\/p><\/li><li><p>\u767a\u5149\u51fa\u529b\u304a\u3088\u3073\u53d7\u5149\u611f\u5ea6\u5236\u5fa1<\/p><\/li><li><p>\u30e1\u30c7\u30a3\u30a2\u56fa\u6709\u30d1\u30e9\u30e1\u30fc\u30bf\uff08OM3\uff0fOM4\u30d5\u30a1\u30a4\u30d0\u3001100\u30aa\u30fc\u30e0\u9285\u7dda\u30da\u30a2\u306a\u3069\uff09<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>PMD\u306f\u3001PMA\u304b\u3089\u53d7\u3051\u53d6\u3063\u305f\u96fb\u6c17\u4fe1\u53f7\u3092\u3001\u7269\u7406\u30ea\u30f3\u30af\u4e0a\u3067\u4f1d\u9001\u3055\u308c\u308b\u5149\u307e\u305f\u306f\u9285\u30d9\u30fc\u30b9\u306e\u4fe1\u53f7\u306b\u5909\u63db\u3057\u307e\u3059\u3002.<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >PCS\u3001PMA\u3001PMD\u306e\u5354\u8abf\u52d5\u4f5c<\/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\/8f686013e096433f9a02240754eb8dec.webp\" alt=\"PCS, PMA, and PMD Work Together\" class=\"wp-image-3565\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8f686013e096433f9a02240754eb8dec.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8f686013e096433f9a02240754eb8dec-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8f686013e096433f9a02240754eb8dec-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8f686013e096433f9a02240754eb8dec-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8f686013e096433f9a02240754eb8dec-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">PHY\u30b9\u30bf\u30c3\u30af\u306b\u304a\u3051\u308b\u30c7\u30fc\u30bf\u306e\u6d41\u308c\u306f\u3001\u4ee5\u4e0b\u306e\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u306b\u5f93\u3044\u307e\u3059\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u30b9\u30c6\u30c3\u30d7 1\uff1aPCS \u304c\u30c7\u30fc\u30bf\u3092\u7b26\u53f7\u5316\u304a\u3088\u3073\u6574\u7406\u3057\u307e\u3059<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">MAC \u304b\u3089\u306e\u30c7\u30fc\u30bf\u306f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u7b26\u53f7\u5316\u3055\u308c\u307e\u3059\uff0864b\/66b \u307e\u305f\u306f\u305d\u306e\u4ed6\u306e\u65b9\u5f0f\uff09<\/p><\/li><li><p>\u30ec\u30fc\u30f3\u306b\u5206\u6563\u3055\u308c\u307e\u3059\uff08\u30de\u30eb\u30c1\u30ec\u30fc\u30f3\u306e\u5834\u5408\uff09<\/p><\/li><li><p>\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u304a\u3088\u3073\u30d6\u30ed\u30c3\u30af\u30ed\u30c3\u30af\u304c\u884c\u308f\u308c\u307e\u3059<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u306b\u3088\u308a\u3001\u4fe1\u53f7\u306e\u5b8c\u5168\u6027\u3092\u7dad\u6301\u3057\u306a\u304c\u3089\u9ad8\u901f\u30b7\u30ea\u30a2\u30eb\u5316\u306e\u305f\u3081\u306e\u30c7\u30fc\u30bf\u304c\u6e96\u5099\u3055\u308c\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u30b9\u30c6\u30c3\u30d7 2\uff1aPMA \u304c\u30d3\u30c3\u30c8\u30b9\u30c8\u30ea\u30fc\u30e0\u3092\u5909\u63db\u304a\u3088\u3073\u540c\u671f\u3057\u307e\u3059<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">PMA \u306f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>PCS \u7b26\u53f7\u5316\u6e08\u307f\u30c7\u30fc\u30bf\u3092\u9023\u7d9a\u3057\u305f\u30d3\u30c3\u30c8\u30b9\u30c8\u30ea\u30fc\u30e0\u306b\u30b7\u30ea\u30a2\u30eb\u5316\u3057\u307e\u3059<\/p><\/li><li><p>\u53d7\u4fe1\u30c7\u30fc\u30bf\u304b\u3089\u30af\u30ed\u30c3\u30af\u30bf\u30a4\u30df\u30f3\u30b0\u3092\u5fa9\u5143\u3057\u307e\u3059<\/p><\/li><li><p>\u6b21\u306e\u51e6\u7406\u3092\u9069\u7528\u3057\u307e\u3059\uff1a <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ja\/glossary\/serdes-interfaces-high-speed-data-transfer-and-signal-integrity\/\">SerDes<\/a> \u30a4\u30b3\u30e9\u30a4\u30bc\u30fc\u30b7\u30e7\u30f3\u304a\u3088\u3073\u30ea\u30bf\u30a4\u30df\u30f3\u30b0<\/p><\/li><li><p>\u30de\u30eb\u30c1\u30ec\u30fc\u30f3\u30d7\u30ed\u30c8\u30b3\u30eb\uff08XLAUI\u3001CAUI-4 \u306a\u3069\uff09\u306b\u304a\u3051\u308b\u30ec\u30fc\u30f3\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u3092\u4fdd\u8a3c\u3057\u307e\u3059<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u306b\u3088\u308a\u3001\u9001\u4fe1\u524d\u306e\u4fe1\u53f7\u304c\u5b89\u5b9a\u5316\u3055\u308c\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u30b9\u30c6\u30c3\u30d7 3\uff1aPMD \u304c\u4fe1\u53f7\u3092\u5a92\u4f53\u3092\u901a\u3058\u3066\u9001\u4fe1\u3057\u307e\u3059<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">PMD \u30ec\u30a4\u30e4\u30fc\u306f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u96fb\u6c17\u4fe1\u53f7\u3092\u5149\u4fe1\u53f7\u306b\u5909\u63db\u3057\u307e\u3059\uff08\u30ec\u30fc\u30b6\u30fc\uff0f\u30d5\u30a9\u30c8\u30c0\u30a4\u30aa\u30fc\u30c9\u3092\u4ecb\u3057\u3066\uff09<\/p><\/li><li><p>\u307e\u305f\u306f\u3001\u9285\u7dda\uff08BASE-T\u3001DAC\uff09\u5411\u3051\u306b\u96fb\u6c17\u51fa\u529b\u3092\u8abf\u6574\u3057\u307e\u3059<\/p><\/li><li><p>\u5909\u8abf\u65b9\u5f0f\u3092\u5236\u5fa1\u3057\u307e\u3059\uff08<a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ja\/glossary\/understanding-non-return-to-zero-in-digital-communication\/\">NRZ<\/a>, <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ja\/glossary\/what-is-pam4-four-level-pulse-amplitude-modulation-basics\/\">PAM4<\/a>)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u53d7\u4fe1\u5074\u3067\u306f\u3001PMD \u304c\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u3092\u9006\u8ee2\u3055\u305b\u3001\u30af\u30ea\u30fc\u30f3\u306a\u96fb\u6c17\u4fe1\u53f7\u3092 PMA \u306b\u6e21\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u3053\u308c\u3089\u306e\u30ec\u30a4\u30e4\u30fc\u304c\u91cd\u8981\u306a\u7406\u7531<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >\u5149\u30c8\u30e9\u30f3\u30b7\u30fc\u30d0\u306e\u6027\u80fd\u306b\u304a\u3044\u3066<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u3089\u306e\u30ec\u30a4\u30e4\u30fc\u306f\u4ee5\u4e0b\u306e\u8981\u7d20\u3092\u6c7a\u5b9a\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u6700\u5927\u30c7\u30fc\u30bf\u30ec\u30fc\u30c8<\/p><\/li><li><p>\u30ea\u30f3\u30af\u8ddd\u96e2\u306e\u80fd\u529b<\/p><\/li><li><p>\u30a8\u30e9\u30fc\u6027\u80fd\uff08<a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ja\/glossary\/understanding-what-is-bit-error-rate\/\">BER<\/a>)<\/p><\/li><li><p>\u30ec\u30a4\u30c6\u30f3\u30b7<\/p><\/li><li><p>\u96fb\u529b\u52b9\u7387<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">PMA \u304a\u3088\u3073 PMD \u306f\u7279\u306b <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/488452.htm\"><strong>100G<\/strong><\/a><strong>\/<\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/473139.htm\"><strong>200G<\/strong><\/a><strong>\/<\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/472016.htm\"><strong>\u9ad8\u3044\u30dd\u30fc\u30c8\u5bc6\u5ea6<\/strong><\/a><strong> PAM4 \u30c8\u30e9\u30f3\u30b7\u30fc\u30d0\u306b\u304a\u3044\u3066\u91cd\u8981\u3067\u3042\u308a\u3001<\/strong>, \u30af\u30ed\u30c3\u30af\u5fa9\u5143\u304a\u3088\u3073\u5149\u5909\u8abf\u306b\u306f\u9ad8\u5ea6\u306a DSP \u304c\u5fc5\u8981\u3067\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u30b7\u30b9\u30c6\u30e0\u30a4\u30f3\u30c6\u30b0\u30ec\u30fc\u30bf\u306b\u3068\u3063\u3066<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">PCS\uff0fPMA\uff0fPMD \u306e\u76f8\u4e92\u4f5c\u7528\u3092\u660e\u78ba\u306b\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u4ee5\u4e0b\u306e\u70b9\u3067\u5f79\u7acb\u3061\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u4e92\u63db\u6027\u306e\u3042\u308b\u6a5f\u5668\u306e\u9078\u5b9a <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-26155-1g-sfp.htm\">SFP<\/a>\/<a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/491483.htm\">QSFP\u30e2\u30b8\u30e5\u30fc\u30eb<\/a><\/p><\/li><li><p>\u5149\u30ea\u30f3\u30af\u306e\u554f\u984c\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0<\/p><\/li><li><p>\u6b63\u78ba\u306a\u30ec\u30fc\u30f3\u30de\u30c3\u30d4\u30f3\u30b0\u306e\u78ba\u4fdd\uff08\u4f8b\uff1a\u30d6\u30ec\u30a4\u30af\u30a2\u30a6\u30c8\uff09<\/p><\/li><li><p>\u7b26\u53f7\u5316\u307e\u305f\u306f\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u30a8\u30e9\u30fc\u306e\u8a3a\u65ad<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" >LINK-PP \u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u304c PCS\uff0fPMA\uff0fPMD \u306e\u5b89\u5b9a\u6027\u3092\u3069\u306e\u3088\u3046\u306b\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u304b<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">LINK-PP \u306f\u3001\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u78c1\u6c17\u90e8\u54c1\u3001\u5149\u30c8\u30e9\u30f3\u30b7\u30fc\u30d0\u30a2\u30af\u30bb\u30b5\u30ea\u3001\u304a\u3088\u3073\u9ad8\u6027\u80fd\u63a5\u7d9a\u90e8\u54c1\u3092\u63d0\u4f9b\u3057\u3066\u304a\u308a\u3001\u4ee5\u4e0b\u306e\u305f\u3081\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u4f4e\u633f\u5165\u640d\u5931\u304a\u3088\u3073\u9ad8\u4fe1\u53f7\u5b8c\u5168\u6027\uff08PMA SerDes \u6027\u80fd\u3092\u30b5\u30dd\u30fc\u30c8\uff09<\/p><\/li><li><p>EMI \u6291\u5236\u306b\u3088\u308b PCS\uff0fPMA \u52d5\u4f5c\u306e\u5b89\u5b9a\u5316<\/p><\/li><li><p>\u9577\u8ddd\u96e2\u30ea\u30f3\u30af\u5411\u3051\u306e\u5805\u7262\u306a\u96fb\u6c17\u7684\u7279\u6027<\/p><\/li><li><p>\u4e3b\u8981\u30cd\u30c3\u30c8\u30ef\u30fc\u30af OEM \u3068\u306e\u4e92\u63db\u6027<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u9ad8\u54c1\u8cea\u30b3\u30cd\u30af\u30bf\u3001RJ45 \u78c1\u6c17\u90e8\u54c1\u3001\u304a\u3088\u3073\u5149\u90e8\u54c1\u306b\u3088\u308a\u3001\u3059\u3079\u3066\u306e PHY \u30b5\u30d6\u30ec\u30a4\u30e4\u30fc\u306b\u308f\u305f\u3063\u3066 <strong>\u4fe1\u53f7\u306e\u660e\u77ad\u6027\u304c\u7dad\u6301\u3055\u308c\u3001<\/strong>, PCS \u7b26\u53f7\u5316\u304b\u3089 PMD \u9001\u4fe1\u306b\u81f3\u308b\u307e\u3067\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u52d5\u4f5c\u304c\u4fdd\u8a3c\u3055\u308c\u307e\u3059\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\/9240db12025d485c8973a6532e9fb4d7.jpg\" alt=\"LINK-PP Solutions\" class=\"wp-image-3566\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9240db12025d485c8973a6532e9fb4d7.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9240db12025d485c8973a6532e9fb4d7-300x178.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9240db12025d485c8973a6532e9fb4d7-1024x608.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9240db12025d485c8973a6532e9fb4d7-768x456.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9240db12025d485c8973a6532e9fb4d7-18x12.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" >\u7d50\u8ad6<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>PCS\u3001PMA\u3001\u304a\u3088\u3073PMD\u306f\u3001\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8PHY\u306e3\u3064\u306e\u540c\u671f\u5316\u3055\u308c\u305f\u30ec\u30a4\u30e4\u30fc\u3068\u3057\u3066\u5354\u8abf\u3057\u3066\u52d5\u4f5c\u3057\u307e\u3059\u3002<\/strong>, \u3053\u308c\u306b\u3088\u308a\u3001\u9ad8\u901f\u30c7\u30fc\u30bf\u304c\u5149\u30d5\u30a1\u30a4\u30d0\u304a\u3088\u3073\u9285\u7dda\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u4ecb\u3057\u3066\u30af\u30ea\u30fc\u30f3\u304b\u3064\u4fe1\u983c\u6027\u9ad8\u304f\u4f1d\u9001\u3055\u308c\u308b\u305f\u3081\u306e\u5fc5\u9808\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u304c\u69cb\u6210\u3055\u308c\u307e\u3059\u3002.<\/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\/\">PCS<\/a> \u51e6\u7406\u3057\u307e\u3059 <strong>\u7b26\u53f7\u5316\u304a\u3088\u3073\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8<\/strong><\/p><\/li><li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ja\/glossary\/pma-physical-medium-attachment-ethernet-explained\/\">PMA<\/a> \u51e6\u7406\u3057\u307e\u3059 <strong>\u30b7\u30ea\u30a2\u30eb\u5316\u304a\u3088\u3073\u30bf\u30a4\u30df\u30f3\u30b0\u5236\u5fa1<\/strong><\/p><\/li><li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ja\/glossary\/what-is-physical-medium-dependent-pmd\/\">PMD<\/a> \u51e6\u7406\u3057\u307e\u3059 <strong>\u30e1\u30c7\u30a3\u30a2\u56fa\u6709\u306e\u4f1d\u9001<\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u3089\u306e\u5f79\u5272\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u9ad8\u901f\u5149\u30e2\u30b8\u30e5\u30fc\u30eb\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a2d\u8a08\u3001\u307e\u305f\u306f\u7269\u7406\u5c64\u306e\u6027\u80fd\u8a55\u4fa1\u3092\u884c\u3046\u969b\u306b\u57fa\u672c\u3068\u306a\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u306b\u304a\u3051\u308bPCS\u3001PMA\u3001PMD\u306e\u9055\u3044\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">PCS\uff08Physical Coding Sublayer\uff1a\u7269\u7406\u7b26\u53f7\u5316\u30b5\u30d6\u30ec\u30a4\u30e4\u30fc\uff09\u306f\u3001\u30c7\u30fc\u30bf\u7b26\u53f7\u5316\u3001\u30d6\u30ed\u30c3\u30af\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3001\u30ec\u30fc\u30f3\u5206\u914d\u3001\u304a\u3088\u3073\u30a8\u30e9\u30fc\u691c\u51fa\u3092\u51e6\u7406\u3057\u307e\u3059\u3002.<br\/>PMA\uff08Physical Medium Attachment\uff1a\u7269\u7406\u30e1\u30c7\u30a3\u30a2\u30a2\u30bf\u30c3\u30c1\u30e1\u30f3\u30c8\uff09\u306f\u3001\u30b7\u30ea\u30a2\u30eb\u5316\uff0f\u30c7\u30b7\u30ea\u30a2\u30eb\u5316\uff08SerDes\uff09\u304a\u3088\u3073\u30af\u30ed\u30c3\u30af\u30ea\u30ab\u30d0\u30ea\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002.<br\/>PMD\uff08Physical Medium Dependent\uff1a\u7269\u7406\u30e1\u30c7\u30a3\u30a2\u4f9d\u5b58\uff09\u306f\u3001\u5b9f\u969b\u306e\u7269\u7406\u30e1\u30c7\u30a3\u30a2\u3068\u30a4\u30f3\u30bf\u30d5\u30a7\u30fc\u30b9\u3057\u3001\u96fb\u6c17\u4fe1\u53f7\u307e\u305f\u306f\u5149\u4fe1\u53f7\u306e\u9001\u4fe1\u304a\u3088\u3073\u53d7\u4fe1\u3092\u884c\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<hr class=\"wp-block-separator\" \/>\n\n\n\n<h3 class=\"wp-block-heading\" >\u306a\u305cPCS\u3001PMA\u3001PMD\u306f\u5354\u8abf\u3057\u3066\u52d5\u4f5c\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e3\u3064\u306e\u30ec\u30a4\u30e4\u30fc\u306f\u3001\u5b8c\u5168\u306aEthernet PHY\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u3092\u69cb\u6210\u3057\u307e\u3059\u3002PCS\u304c\u30c7\u30fc\u30bf\u3092\u6e96\u5099\u3057\u3001PMA\u304c\u305d\u308c\u3092\u76f4\u5217\u5316\u3055\u308c\u305f\u30d3\u30c3\u30c8\u30b9\u30c8\u30ea\u30fc\u30e0\u306b\u5909\u63db\u3057\u3001PMD\u304c\u9285\u7dda\u307e\u305f\u306f\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u3092\u4ecb\u3057\u3066\u9001\u4fe1\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30ec\u30a4\u30e4\u30fc\u304c\u5354\u8abf\u3057\u3066\u52d5\u4f5c\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u306e\u307f\u3001PHY\u306f\u9ad8\u901f\u30ea\u30f3\u30af\u5168\u4f53\u3067\u30bf\u30a4\u30df\u30f3\u30b0\u3001\u4fe1\u53f7\u6574\u5408\u6027\u3001\u304a\u3088\u3073\u76f8\u4e92\u904b\u7528\u6027\u3092\u7dad\u6301\u3067\u304d\u307e\u3059\u3002.<\/p>\n\n\n\n<hr class=\"wp-block-separator\" \/>\n\n\n\n<h3 class=\"wp-block-heading\" 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href=\"https:\/\/www.l-p.com\/store-17492-integrated-rj45-connector.htm\">RJ45\u30b3\u30cd\u30af\u30bf<\/a>.<br\/>\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u305d\u306e\u5f79\u5272\u306f\u5e38\u306bPHY\u4fe1\u53f7\u3092\u7269\u7406\u5a92\u4f53\u3078\u7d50\u5408\u3059\u308b\u3053\u3068\u3067\u3059\u3002.<\/p>\n\n\n\n<hr class=\"wp-block-separator\" \/>\n\n\n\n<h3 class=\"wp-block-heading\" >\u3053\u308c\u3089\u306e\u30ec\u30a4\u30e4\u30fc\u306f\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u4e92\u63db\u6027\u306b\u3069\u306e\u3088\u3046\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u76f8\u4e92\u904b\u7528\u6027\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306b\u306f\u3001PCS\u7b26\u53f7\u5316\u3001PMA SerDes\u306e\u52d5\u4f5c\u3001\u304a\u3088\u3073PMD\u306e\u5149\uff0f\u96fb\u6c17\u4ed5\u69d8\u304c <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ja\/knowledge-center\/ieee-802-3-ethernet-standard-explained\/\">IEEE 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