{"id":3584,"date":"2025-11-28T00:00:00","date_gmt":"2025-11-28T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/glossary\/pma-physical-medium-attachment-ethernet-explained\/"},"modified":"2026-06-22T04:35:39","modified_gmt":"2026-06-22T04:35:39","slug":"pma-physical-medium-attachment-ethernet-explained","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/ja\/glossary\/pma-physical-medium-attachment-ethernet-explained","title":{"rendered":"PMA\uff08\u7269\u7406\u30e1\u30c7\u30a3\u30a2\u30a2\u30bf\u30c3\u30c1\u30e1\u30f3\u30c8\uff09\u30ec\u30a4\u30e4\u30fc\u306e\u7406\u89e3"},"content":{"rendered":"<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"608\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/f069071da15c4bf48583fce260f4b0df-1024x608.webp\" alt=\"Understanding the PMA (Physical Medium Attachment) Layer\" class=\"wp-image-3579\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/f069071da15c4bf48583fce260f4b0df-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/f069071da15c4bf48583fce260f4b0df-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/f069071da15c4bf48583fce260f4b0df-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/f069071da15c4bf48583fce260f4b0df-18x12.webp 18w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/f069071da15c4bf48583fce260f4b0df.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e <strong>\u7269\u7406\u5a92\u4f53\u30a2\u30bf\u30c3\u30c1\u30e1\u30f3\u30c8\uff08PMA\uff09<\/strong> \u306f\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u306e\u7269\u7406\u5c64\uff08PHY\uff09\u5185\u306b\u304a\u3051\u308b\u91cd\u8981\u306a\u30b5\u30d6\u30ec\u30a4\u30e4\u30fc\u3067\u3042\u308a\u3001 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ja\/glossary\/what-is-phy-physical-layer-basics-explained\/\"><strong>\u7269\u7406\u5c64\uff08PHY\uff09<\/strong><\/a>, \u306e\u4e2d\u3067\u3001 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ja\/glossary\/pcs-physical-coding-sublayer-ethernet-explained\/\"><strong>\u7269\u7406\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u30b5\u30d6\u30ec\u30a4\u30e4\u30fc\uff08PCS\uff09<\/strong><\/a> \u304a\u3088\u3073 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ja\/glossary\/what-is-physical-medium-dependent-pmd\/\"><strong>\u7269\u7406\u5a92\u4f53\u4f9d\u5b58\uff08PMD\uff09<\/strong><\/a> \u30ec\u30a4\u30e4\u30fc\u306e\u9593\u306b\u4f4d\u7f6e\u3057\u307e\u3059\u3002\u30c7\u30fc\u30bf\u30ec\u30fc\u30c8\u304c10G\u300125G\u3001100G\u3001\u304a\u3088\u3073\u305d\u308c\u4ee5\u4e0a\u306e\u30ec\u30d9\u30eb\u3078\u3068\u62e1\u5927\u3059\u308b\u306b\u3064\u308c\u3001PMA\u306f\u9285\u7dda\u304a\u3088\u3073\u5149\u30e1\u30c7\u30a3\u30a2\u4e0a\u3067\u306e\u9ad8\u901f\u76f4\u5217\u5316\u3001\u6b63\u78ba\u306a\u30bf\u30a4\u30df\u30f3\u30b0\u5236\u5fa1\u3001\u5b89\u5b9a\u3057\u305f\u901a\u4fe1\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306b\u4e0d\u53ef\u6b20\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">IEEE 802.3 \u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306b\u304a\u3044\u3066\u3001PMA\u306f\u69cb\u9020\u5316\u3055\u308c\u305fPCS\u30d6\u30ed\u30c3\u30af\u3092\u3001\u5149\u30c8\u30e9\u30f3\u30b7\u30fc\u30d0\u3001\u96fb\u6c17\u7684\u30ec\u30fc\u30f3\u3001\u307e\u305f\u306f\u30d0\u30c3\u30af\u30d7\u30ec\u30fc\u30f3\u30c1\u30e3\u30cd\u30eb\u3092\u4ecb\u3057\u305f\u4f1d\u9001\u306b\u9069\u3057\u305f\u9ad8\u901f\u76f4\u5217\u30d3\u30c3\u30c8\u30b9\u30c8\u30ea\u30fc\u30e0\u306b\u5909\u63db\u3059\u308b\u6a4b\u6e21\u3057\u306e\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u27a1\ufe0f \u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u306b\u304a\u3051\u308bPMA\u30ec\u30a4\u30e4\u30fc\u3068\u306f\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e <strong>PMA<\/strong> \u306f\u3001\u9ad8\u901f\u30c7\u30fc\u30bf\u3092\u7269\u7406\u5a92\u4f53\u4e0a\u3067\u4f1d\u9001\u53ef\u80fd\u306b\u3059\u308b\u305f\u3081\u306e\u96fb\u6c17\u7684\u30fb\u30bf\u30a4\u30df\u30f3\u30b0\u7684\u306b\u53b3\u3057\u3044\u6a5f\u80fd\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u306f\u3001 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ja\/glossary\/serdes-interfaces-high-speed-data-transfer-and-signal-integrity\/\"><strong>SerDes\uff08\u30b7\u30ea\u30a2\u30eb\u30e9\u30a4\u30b6\uff0f\u30c7\u30b7\u30ea\u30a2\u30eb\u30e9\u30a4\u30b6\uff09 <\/strong><\/a><strong>\u8ad6\u7406<\/strong>, <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ja\/glossary\/clock-and-data-recovery-in-modern-communication-systems\/\"><strong>CDR\uff08\u30af\u30ed\u30c3\u30af\u304a\u3088\u3073\u30c7\u30fc\u30bf\u5fa9\u65e7\uff09<\/strong><\/a> \u56de\u8def\u304a\u3088\u3073\u30ec\u30fc\u30f3\u7ba1\u7406\u6a5f\u69cb\u304c\u542b\u307e\u308c\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8981\u7d04\u3059\u308b\u3068\uff1a<br>\ud83d\udc49 <strong>PCS\u304c\u30c7\u30fc\u30bf\u3092\u6e96\u5099\u3057\u3001PMA\u304c\u305d\u308c\u3092\u76f4\u5217\u5316\u3057\u3001PMD\u304c\u30d5\u30a1\u30a4\u30d0\u307e\u305f\u306f\u9285\u7dda\u3078\u9001\u4fe1\u3057\u307e\u3059\u3002.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">PMA\u306f\u3001\u5a92\u4f53\u3078\u5165\u529b\u3055\u308c\u308b\u4fe1\u53f7\u304c\u30af\u30ea\u30fc\u30f3\u3067\u3042\u308a\u3001\u540c\u671f\u304c\u53d6\u308c\u3066\u304a\u308a\u3001\u304b\u3064\u8907\u6570\u306e\u9ad8\u901f\u30ec\u30fc\u30f3\u9593\u3067\u4e00\u8cab\u6027\u3092\u4fdd\u3064\u3053\u3068\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u27a1\ufe0f PMA\u306e\u4e3b\u8981\u6a5f\u80fd<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u76f4\u5217\u5316\u304a\u3088\u3073\u9006\u76f4\u5217\u5316\uff08SerDes\uff09<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">PMA\u306e\u4e3b\u306a\u5f79\u5272\u306e\u4e00\u3064\u306f\u3001 <strong>\u4e26\u5217\u306ePCS\u30c7\u30fc\u30bf\u3092\u9ad8\u901f\u76f4\u5217\u30b9\u30c8\u30ea\u30fc\u30e0\u3078\u5909\u63db\u3059\u308b\u3053\u3068\u3001\u304a\u3088\u3073\u305d\u306e\u9006\u3092\u884c\u3046\u3053\u3068\u3067\u3059\u3002<\/strong>, \u305d\u3057\u3066\u305d\u306e\u9006\u3082\u540c\u69d8\u3067\u3059\u3002.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>\u9001\u4fe1\uff08TX\uff09\u30d1\u30b9\uff1a<\/strong> \u8907\u6570\u30d3\u30c3\u30c8\u306e\u4e26\u5217 \u2192 \u5358\u4e00\u306e\u76f4\u5217\u30d3\u30c3\u30c8\u30b9\u30c8\u30ea\u30fc\u30e0<\/p><\/li>\n\n\n\n<li><p><strong>\u53d7\u4fe1\uff08RX\uff09\u30d1\u30b9\uff1a<\/strong> \u76f4\u5217\u30d3\u30c3\u30c8\u30b9\u30c8\u30ea\u30fc\u30e0 \u2192 \u8907\u6570\u30d3\u30c3\u30c8\u306e\u4e26\u5217<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u6a5f\u80fd\u306b\u3088\u308a\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u9ad8\u30ec\u30fc\u30c8\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u898f\u683c\u304c\u5b9f\u73fe\u3055\u308c\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>10GBASE-R\uff0810.3125 Gb\/s \u30e9\u30a4\u30f3\u30ec\u30fc\u30c8\uff09<\/strong><\/p><\/li>\n\n\n\n<li><p><strong>25GBASE-R\uff0825.78125 Gb\/s\uff09<\/strong><\/p><\/li>\n\n\n\n<li><p><strong>100GBASE-R\uff084 \u00d7 25G \u30ec\u30fc\u30f3\uff09<\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u9ad8\u54c1\u8cea\u306a <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ja\/glossary\/serdes-interfaces-high-speed-data-transfer-and-signal-integrity\/\">SerDes<\/a> \u306f\u3001\u30d3\u30c3\u30c8\u30a8\u30e9\u30fc\u7387\uff08BER\uff09\u304a\u3088\u3073\u30ea\u30f3\u30af\u306e\u5b89\u5b9a\u6027\u306b\u76f4\u63a5\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30af\u30ed\u30c3\u30af\u30ea\u30ab\u30d0\u30ea\u304a\u3088\u3073\u30d3\u30c3\u30c8\u30ec\u30d9\u30eb\u540c\u671f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">PMA\u306b\u306f\u3001 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ja\/glossary\/clock-and-data-recovery-in-modern-communication-systems\/\"><strong>\u30af\u30ed\u30c3\u30af\u30fb\u30a2\u30f3\u30c9\u30fb\u30c7\u30fc\u30bf\u30fb\u30ea\u30ab\u30d0\u30ea\u30fc\uff08CDR\uff09<\/strong><\/a> \u5165\u529b\u30d3\u30c3\u30c8\u30b9\u30c8\u30ea\u30fc\u30e0\u304b\u3089\u30bf\u30a4\u30df\u30f3\u30b0\u60c5\u5831\u3092\u62bd\u51fa\u3059\u308b\u6a5f\u80fd\u304c\u5099\u308f\u3063\u3066\u3044\u307e\u3059\u3002CDR\uff08\u30af\u30ed\u30c3\u30af\u30fb\u30c7\u30fc\u30bf\u30fb\u30ea\u30ab\u30d0\u30ea\uff09\u306f\u4ee5\u4e0b\u306e\u70b9\u3092\u4fdd\u8a3c\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u5404\u30d3\u30c3\u30c8\u306e\u6b63\u78ba\u306a\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0<\/p><\/li>\n\n\n\n<li><p>\u30ea\u30f3\u30af\u30b8\u30c3\u30bf\u3078\u306e\u88dc\u511f<\/p><\/li>\n\n\n\n<li><p>\u9577\u8ddd\u96e2\u307e\u305f\u306f\u30ce\u30a4\u30ba\u306e\u591a\u3044\u30c1\u30e3\u30cd\u30eb\u4e0a\u3067\u3082\u5b89\u5b9a\u3057\u305f\u540c\u671f<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u73fe\u4ee3\u306e\u5149\u30ea\u30f3\u30af\u3067\u306f\u3001CDR\u306e\u6027\u80fd\u306f <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ja\/glossary\/understanding-what-is-bit-error-rate\/\"><strong>BER<\/strong><\/a>, <strong>\u9ad8\u5bc6\u5ea6\u30b1\u30fc\u30d6\u30ea\u30f3\u30b0\u3092\u7c21\u7d20\u5316\u3057\u3001\u30b3\u30b9\u30c8\u3092\u524a\u6e1b\u3057\u305f\u3044\u3067\u3059\u304b\uff1f<\/strong>, \u304a\u3088\u3073 <strong>\u4fe1\u53f7\u6574\u5408\u6027<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"565\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/239b12b64a4b4af38618b96be24bd85b.webp\" alt=\"Clock and Data Recovery (CDR)\" class=\"wp-image-3580\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/239b12b64a4b4af38618b96be24bd85b.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/239b12b64a4b4af38618b96be24bd85b-300x141.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/239b12b64a4b4af38618b96be24bd85b-1024x482.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/239b12b64a4b4af38618b96be24bd85b-768x362.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/239b12b64a4b4af38618b96be24bd85b-18x8.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u30b9\u30af\u30e9\u30f3\u30d6\u30eb\u304a\u3088\u3073\u30c7\u30b9\u30af\u30e9\u30f3\u30d6\u30eb<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">PMA\u306f\u30b9\u30af\u30e9\u30f3\u30d6\u30eb\u51e6\u7406\u3092\u5b9f\u884c\u3057\u3066\u3001\u4ee5\u4e0b\u306e\u76ee\u7684\u3092\u9054\u6210\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>EMI\uff08\u96fb\u78c1\u5e72\u6e09\uff09\u306e\u4f4e\u6e1b<\/p><\/li>\n\n\n\n<li><p>\u9577\u6642\u9593\u306b\u308f\u305f\u308b\u53cd\u5fa9\u30d3\u30c3\u30c8\u5217\u306e\u6392\u9664<\/p><\/li>\n\n\n\n<li><p>\u30af\u30ed\u30c3\u30af\u56de\u5fa9\u306e\u305f\u3081\u306e\u30e9\u30f3\u30c0\u30e0\u6027\u306e\u5411\u4e0a<\/p><\/li>\n\n\n\n<li><p>DC\u30d0\u30e9\u30f3\u30b9\u306e\u78ba\u4fdd<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u30b9\u30af\u30e9\u30f3\u30d6\u30ea\u30f3\u30b0\u306fPCS\u30a8\u30f3\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\uff08\u4f8b\uff1a64B\/66B\uff09\u3068\u4f75\u7528\u3055\u308c\u3001\u5805\u7262\u306a\u4f1d\u9001\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u3092\u7dad\u6301\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30ec\u30fc\u30f3\u306e\u591a\u91cd\u5316\u304a\u3088\u3073\u591a\u91cd\u5316\u89e3\u9664<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30de\u30eb\u30c1\u30ec\u30fc\u30f3\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\uff0840GBASE-R\u3001100GBASE-R\uff09\u3067\u306f\u3001\u53b3\u683c\u306a\u30ec\u30fc\u30f3\u7ba1\u7406\u304c\u6c42\u3081\u3089\u308c\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u30ec\u30fc\u30f3\u30b9\u30c8\u30e9\u30a4\u30d4\u30f3\u30b0\uff08\u9001\u4fe1\u5074\uff09<\/p><\/li>\n\n\n\n<li><p>\u30ec\u30fc\u30f3\u30c7\u30b9\u30ad\u30e5\u30fc\uff08\u53d7\u4fe1\u5074\uff09<\/p><\/li>\n\n\n\n<li><p>\u30de\u30fc\u30ab\u30fc\u306b\u57fa\u3065\u304f\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\uff08PCS\u3067\u5b9a\u7fa9\u3055\u308c\u308b\u304c\u3001PMA\u304c\u652f\u63f4\uff09<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">PMA\u306f\u3001\u5404\u30ec\u30fc\u30f3\u304c\u5149\u30d5\u30a1\u30a4\u30d0\u307e\u305f\u306fPCB\u30c8\u30ec\u30fc\u30b9\u4e0a\u3067\u7570\u306a\u308b\u9045\u5ef6\u3092\u7d4c\u9a13\u3057\u305f\u5834\u5408\u3067\u3082\u3001\u30de\u30eb\u30c1\u30ec\u30fc\u30f3\u4e26\u5217\u30b7\u30b9\u30c6\u30e0\u3092\u540c\u671f\u3055\u305b\u7d9a\u3051\u307e\u3059\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u27a1\ufe0f PMA vs PCS vs PMD \u2014 \u30ec\u30a4\u30e4\u30fc\u306e\u9055\u3044<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u6bd4\u8f03\u6982\u8981<\/h3>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"width: 183px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\" colwidth=\"183\"><p>\u30ec\u30a4\u30e4\u30fc<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\u6a5f\u80fd<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"183\"><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ja\/glossary\/pcs-physical-coding-sublayer-ethernet-explained\/\"><strong>PCS<\/strong><\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u30a8\u30f3\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\uff0864B\/66B\uff09\u3001\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3001\u5236\u5fa1\u30d6\u30ed\u30c3\u30af<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"183\"><p><strong>PMA<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u30b7\u30ea\u30a2\u30eb\u5316\uff0f\u30c7\u30b7\u30ea\u30a2\u30e9\u30a4\u30ba\u3001\u30af\u30ed\u30c3\u30af\u56de\u5fa9<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"183\"><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ja\/glossary\/what-is-physical-medium-dependent-pmd\/\"><strong>PMD<\/strong><\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u30ec\u30fc\u30b6\u30fc\uff0f\u5149\u5b66\u7cfb\uff0f\u96fb\u6c17\u4fe1\u53f7\u304a\u3088\u3073\u5a92\u4f53\u30a4\u30f3\u30bf\u30d5\u30a7\u30fc\u30b9<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u306f\u6b21\u306e\u3088\u3046\u306b\u8996\u899a\u5316\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>MAC \u2192 PCS \u2192 PMA \u2192 PMD \u2192 \u30e1\u30c7\u30a3\u30a2<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5404\u30ec\u30a4\u30e4\u30fc\u306f\u3001\u5b9f\u969b\u306e\u7269\u7406\u5a92\u4f53\u306b\u6bb5\u968e\u7684\u306b\u8fd1\u3065\u304f\u5f62\u3067\u30c7\u30fc\u30bf\u3092\u51e6\u7406\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"608\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/fd912e80cbfc4eda826d7f976493739f-1024x608.webp\" alt=\"MAC \u2192 PCS \u2192 PMA \u2192 PMD \u2192 Medium\" class=\"wp-image-3581\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/fd912e80cbfc4eda826d7f976493739f-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/fd912e80cbfc4eda826d7f976493739f-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/fd912e80cbfc4eda826d7f976493739f-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/fd912e80cbfc4eda826d7f976493739f-18x12.webp 18w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/fd912e80cbfc4eda826d7f976493739f.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u27a1\ufe0f \u9ad8\u901f\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u898f\u683c\u306b\u304a\u3051\u308bPMA<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u25b7 10GBASE-R\u306b\u304a\u3051\u308bPMA<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>3125 Gb\/s\u3067\u306e\u9ad8\u6027\u80fdSerDes<\/p><\/li>\n\n\n\n<li><p>\u9ad8\u5468\u6ce2\u30b8\u30c3\u30bf\u8010\u6027\u306e\u305f\u3081\u306eCDR<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u25b7 25GBASE-R\u304a\u3088\u307350G PAM4\u306b\u304a\u3051\u308bPMA<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u30ec\u30fc\u30f3\u3042\u305f\u308a25G SerDes<\/p><\/li>\n\n\n\n<li><p>PAM4\u5909\u8abf\u5411\u3051FEC\u3068\u306e\u7d71\u5408<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u25b7 40G\/100G\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u306b\u304a\u3051\u308bPMA<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>4-lane or 10-lane architectures<\/p><\/li>\n\n\n\n<li><p>\u30ec\u30fc\u30f3\u30c7\u30b9\u30ad\u30e5\u30fc\u304a\u3088\u3073\u6c7a\u5b9a\u8ad6\u7684\u30de\u30eb\u30c1\u30c1\u30e3\u30cd\u30eb\u540c\u671f<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u25b7 200G\/400G PAM4\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308bPMA<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">PCS\u304c\u30a8\u30f3\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u3092\u51e6\u7406\u3059\u308b\u4e00\u65b9\u3001PMA\u306f\u4ee5\u4e0b\u306e\u7ba1\u7406\u3092\u884c\u3044\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>26G\u307e\u305f\u306f53G SerDes\u30ec\u30fc\u30f3<\/p><\/li>\n\n\n\n<li><p>PAM4\u4fe1\u53f7\u4f1d\u9001\u306e\u305f\u3081\u306e\u53b3\u3057\u3044\u30b8\u30c3\u30bf\u8981\u4ef6<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u27a1\ufe0f \u5149\u30c8\u30e9\u30f3\u30b7\u30fc\u30d0\u306b\u304a\u3051\u308bPMA\u30ec\u30a4\u30e4\u30fc\u304c\u91cd\u8981\u306a\u7406\u7531<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u73fe\u4ee3\u306e <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> \u306f\u3001PMA\u6a5f\u80fd\u306b\u5927\u304d\u304f\u4f9d\u5b58\u3057\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u7406\u7531\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4fe1\u53f7\u5b8c\u5168\u6027\u3092\u6c7a\u5b9a\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u9ad8\u901fSerDes\u304a\u3088\u3073CDR\u306f\u3001\u4fe1\u53f7\u304c\u5a92\u4f53\u3078\u3069\u308c\u3060\u3051\u30af\u30ea\u30fc\u30f3\u306b\u6ce8\u5165\u3055\u308c\u308b\u304b\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30a8\u30e9\u30fc\u7387\u3092\u4f4e\u6e1b\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u512a\u308c\u305fPMA\u6027\u80fd\u306b\u3088\u308a\u3001\u524d\u65b9\u8aa4\u308a\u8a02\u6b63\uff08FEC\uff09 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ja\/glossary\/fec-forward-error-correction-in-optical-communication\/\">\u524d\u65b9\u8aa4\u308a\u8a02\u6b63\uff08FEC\uff09<\/a> \u30de\u30eb\u30c1\u30ec\u30fc\u30f3\u5149\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u3088\u3046\u306a<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u306f\u3001PMA\u306b\u3088\u308b\u30ec\u30fc\u30f3\u591a\u91cd\u5316\uff0f\u591a\u91cd\u5316\u89e3\u9664\u306b\u4f9d\u5b58\u3057\u3066\u3044\u307e\u3059\u3002 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/491483.htm\">QSFP+<\/a>, <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/488452.htm\">QSFP28<\/a>, \u3001\u307e\u305f\u306f <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/473139.htm\">\u30d0\u30c3\u30af\u30cf\u30a4\u30e9\u30a6\u30f3\u30c9<\/a> \u9ad8\u901f\u76f8\u4e92\u904b\u7528\u6027\u3092\u5b9f\u73fe\u3059\u308b.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. <strong> <\/strong>PMA\u30ed\u30b8\u30c3\u30af\u306f\u3001\u30b9\u30a4\u30c3\u30c1\u3001\u30eb\u30fc\u30bf\u30fc\u3001NIC\u304a\u3088\u3073\u5149\u30e2\u30b8\u30e5\u30fc\u30eb\u9593\u306e\u4e92\u63db\u6027\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">LINK-PP\u5149\u30c8\u30e9\u30f3\u30b7\u30fc\u30d0\u304a\u3088\u3073PMA\u30d9\u30fc\u30b9\u306e\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8PHY.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">LINK-PP\u306f\u3001\u5b8c\u5168\u306a\u30dd\u30fc\u30c8\u30d5\u30a9\u30ea\u30aa\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\uff1a<\/h3>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/4a29bf0b7ff24fca9f281bdfe1471fd2.webp\" alt=\"LINK-PP Optical Transceivers\" class=\"wp-image-3582\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/4a29bf0b7ff24fca9f281bdfe1471fd2.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/4a29bf0b7ff24fca9f281bdfe1471fd2-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/4a29bf0b7ff24fca9f281bdfe1471fd2-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/4a29bf0b7ff24fca9f281bdfe1471fd2-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/4a29bf0b7ff24fca9f281bdfe1471fd2-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">LINK-PP offers a complete portfolio of <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> PMA\u304a\u3088\u3073PCS\u30d9\u30fc\u30b9\u306e\u9ad8\u901fEthernet PHY\u3068\u9023\u643a\u3057\u3066\u52d5\u4f5c\u3059\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><a href=\"https:\/\/www.l-p.com\/store-26192-10g-sfp.htm\" target=\"_blank\" rel=\"\"><strong>10G SFP+<\/strong> \u30c8\u30e9\u30f3\u30b7\u30fc\u30d0<\/a><\/p><\/li>\n\n\n\n<li><p><a href=\"https:\/\/www.l-p.com\/store-26225-25g-sfp28.htm\" target=\"_blank\" rel=\"\"><strong>25G SFP28<\/strong> \u4fe1\u53f7\u54c1\u8cea\u3092\u5411\u4e0a\u3055\u305b\u307e\u3059<\/a><\/p><\/li>\n\n\n\n<li><p><a href=\"https:\/\/www.l-p.com\/store-26153-40g-qsfp.htm\" target=\"_blank\" rel=\"\"><strong>40G QSFP+<\/strong> \u5149\u5b66\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3<\/a><\/p><\/li>\n\n\n\n<li><p><a href=\"https:\/\/www.l-p.com\/store-27045-100g-qsfp28-sfp-dd.htm\" target=\"_blank\" rel=\"\"><strong>100G QSFP28<\/strong> \u30c8\u30e9\u30f3\u30b7\u30fc\u30d0<\/a><\/p><\/li>\n\n\n\n<li><p><strong>\u60aa\u6761\u4ef6\u74b0\u5883\u5411\u3051\u306e\u7523\u696d\u7528\u6e29\u5ea6\u7bc4\u56f2\u30e2\u30b8\u30e5\u30fc\u30eb<\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u3089\u306e\u30c8\u30e9\u30f3\u30b7\u30fc\u30d0\u30fc\u306f\u3001\u4f4e\u30b8\u30c3\u30bf\u3001\u512a\u308c\u305f\u4fe1\u53f7\u5b8c\u5168\u6027\u3001\u304a\u3088\u3073\u6a19\u6e96\u6e96\u62e0\u306ePMA\u76f8\u4e92\u904b\u7528\u6027\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\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\u30a2\u30bf\u30c3\u30c1\u30e1\u30f3\u30c8\uff08PMA\uff09<\/strong> \u306fEthernet\u7269\u7406\u5c64\u306e\u57fa\u76e4\u7684\u306a\u69cb\u6210\u8981\u7d20\u3067\u3059\u3002\u76f4\u5217\u5316\u3001\u30af\u30ed\u30c3\u30af\u30ea\u30ab\u30d0\u30ea\u30fc\u3001\u30b9\u30af\u30e9\u30f3\u30d6\u30ea\u30f3\u30b0\u3001\u304a\u3088\u3073\u30ec\u30fc\u30f3\u540c\u671f\u3092\u51e6\u7406\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u9ad8\u901fEthernet\u30c7\u30fc\u30bf\u304c\u9285\u7dda\u304a\u3088\u3073\u5149\u30e1\u30c7\u30a3\u30a2\u3092\u4ecb\u3057\u3066\u30af\u30ea\u30fc\u30f3\u304b\u3064\u4fe1\u983c\u6027\u9ad8\u304f\u4f1d\u9001\u3055\u308c\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<p 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