{"id":4936,"date":"2025-09-23T11:12:00","date_gmt":"2025-09-23T11:12:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/what-is-ethernet-wired-networking-technology-explained\/"},"modified":"2026-06-22T06:46:59","modified_gmt":"2026-06-22T06:46:59","slug":"what-is-ethernet-wired-networking-technology-explained","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/ja\/knowledge-center\/what-is-ethernet-wired-networking-technology-explained","title":{"rendered":"Ethernet\u3068\u306f\uff1f \u3042\u306a\u305f\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u6709\u7dda\u57fa\u76e4\u3092\u89e3\u8aac"},"content":{"rendered":"
\"What<\/figure>\n\n\n\n

\u3042\u306a\u305f\u306f\u3053\u3046\u5c0b\u306d\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002, \u300c\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f\u300d<\/strong> \u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u306f\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u3001\u30b2\u30fc\u30e0\u6a5f\u3001\u307e\u305f\u306f\u30b9\u30de\u30fc\u30c8\u30c6\u30ec\u30d3\u3092\u30b1\u30fc\u30d6\u30eb\u3067\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u63a5\u7d9a\u3057\u307e\u3059\u3002\u5bb6\u5ead\u3084\u8077\u5834\u3067\u9ad8\u901f\u304b\u3064\u5b89\u5b9a\u3057\u305f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u63a5\u7d9a\u304c\u5fc5\u8981\u306a\u5834\u5408\u3001\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u304c\u4f7f\u308f\u308c\u307e\u3059\u3002\u591a\u304f\u306e\u4eba\u3005\u304c\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u3092\u597d\u3080\u306e\u306f\u3001\u7121\u7dda\u63a5\u7d9a\u3088\u308a\u3082\u9ad8\u901f\u3067\u4fe1\u983c\u6027\u304c\u9ad8\u3044\u304b\u3089\u3067\u3059\u3002\u30c7\u30fc\u30bf\u306f \u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u30b1\u30fc\u30d6\u30eb<\/strong><\/a>, \u3092\u901a\u3057\u3066\u5b89\u5168\u306b\u9001\u4fe1\u3055\u308c\u308b\u305f\u3081\u3001\u30aa\u30f3\u30e9\u30a4\u30f3\u3067\u306e\u884c\u52d5\u304c\u3088\u308a\u30bb\u30ad\u30e5\u30a2\u306b\u306a\u308a\u307e\u3059\u3002\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u3001\u30aa\u30f3\u30e9\u30a4\u30f3\u6388\u696d\u3001\u30d3\u30c7\u30aa\u901a\u8a71\u306a\u3069\u3001\u5f37\u529b\u306a\u63a5\u7d9a\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u304c\u6700\u3082\u512a\u308c\u305f\u7d50\u679c\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n

\u30d2\u30f3\u30c8\uff1aWi-Fi\u304c\u9045\u3044\u3001\u3042\u308b\u3044\u306f\u983b\u7e41\u306b\u5207\u65ad\u3055\u308c\u308b\u5834\u5408\u306f\u3001\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u3092\u8a66\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002\u554f\u984c\u304c\u89e3\u6d88\u3055\u308c\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\uff01<\/p><\/blockquote>\n\n\n\n

\ud83d\udcc4 \u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u3068\u306f\uff1f\u5358\u306a\u308b\u30b1\u30fc\u30d6\u30eb\u4ee5\u4e0a\u306e\u3082\u306e<\/strong><\/h2>\n\n\n\n

\u7121\u7dda\u3067\u3064\u306a\u304c\u3063\u305f\u73fe\u4ee3\u306b\u304a\u3044\u3066\u3001\u30b1\u30fc\u30d6\u30eb\u306f\u904e\u53bb\u306e\u907a\u7269\u3060\u3068\u8003\u3048\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u3057\u304b\u3057\u3001\u5b89\u5b9a\u6027\u30fb\u9ad8\u901f\u6027\u30fb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u3044\u3046\u70b9\u3067\u306f\u3001\u512a\u308c\u305f\u6709\u7dda\u63a5\u7d9a\u306b\u52dd\u308b\u3082\u306e\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u306e\u6709\u7dda\u63a5\u7d9a\u306e\u300c\u9b54\u6cd5\u300d\u306e\u4e2d\u5fc3\u306b\u3042\u308b\u6280\u8853\u304c\u3001 \u30a4\u30fc\u30b5\u30cd\u30c3\u30c8<\/strong>.<\/p>\n\n\n\n

\u8981\u3059\u308b\u306b\u3001, \u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u306f\u3001\u30c7\u30d0\u30a4\u30b9\u3092 <\/strong>\u30ed\u30fc\u30ab\u30eb\u30a8\u30ea\u30a2\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff08LAN\uff09<\/strong><\/a> \u307e\u305f\u306f <\/strong>\u5e83\u57df\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff08WAN\uff09<\/strong><\/a>.<\/strong> \u7269\u7406\u30b1\u30fc\u30d6\u30eb\uff08\u305f\u3068\u3048\u3070\u3001\u30eb\u30fc\u30bf\u30fc\u304b\u3089\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u3078\u3068\u4f38\u3073\u308b\u9752\u3044\u30b1\u30fc\u30d6\u30eb\uff09\u3092\u4f7f\u3063\u3066\u30c7\u30fc\u30bf\u3092\u9001\u4fe1\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u30c7\u30fc\u30bf\u306e\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3068\u9001\u4fe1\u65b9\u6cd5\u3092\u5b9a\u7fa9\u3059\u308b\u57fa\u672c\u7684\u306a\u898f\u683c\u3067\u3042\u308a\u3001\u7570\u306a\u308b\u30e1\u30fc\u30ab\u30fc\u306e\u30c7\u30d0\u30a4\u30b9\u540c\u58eb\u304c\u30b7\u30fc\u30e0\u30ec\u30b9\u306b\u901a\u4fe1\u3067\u304d\u308b\u3088\u3046\u306b\u4fdd\u8a3c\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n

Wi-Fi\u304c\u81ea\u7531\u3092\u3082\u305f\u3089\u3059\u4e00\u65b9\u3067\u3001\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u306f\u4fe1\u983c\u6027\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u30cf\u30fc\u30c9\u30b3\u30a2\u306a\u30b2\u30fc\u30de\u30fc\u3067\u3042\u308c\u3001\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u611b\u597d\u5bb6\u3067\u3042\u308c\u3001\u30d3\u30b8\u30cd\u30b9\u5411\u3051\u30b5\u30fc\u30d0\u30fc\u3092\u904b\u7528\u3057\u3066\u3044\u308b\u65b9\u3067\u3042\u308c\u3001\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u6700\u9069\u5316\u3059\u308b\u305f\u3081\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002.<\/p>\n\n\n\n

\ud83d\udcc4 \u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u306e\u4ed5\u7d44\u307f\uff1a\u305d\u306e\u57fa\u672c\u539f\u7406<\/strong><\/h2>\n\n\n\n

\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u306f\u3001 \u30ad\u30e3\u30ea\u30a2\u30fb\u30bb\u30f3\u30b9\u30fb\u30de\u30eb\u30c1\u30d7\u30eb\u30fb\u30a2\u30af\u30bb\u30b9\uff0f\u30b3\u30ea\u30b8\u30e7\u30f3\u30fb\u30c7\u30a3\u30c6\u30af\u30b7\u30e7\u30f3\uff08CSMA\/CD\uff09<\/strong>. \u3068\u3044\u3046\u539f\u7406\u306b\u57fa\u3065\u3044\u3066\u52d5\u4f5c\u3057\u307e\u3059\u3002\u3053\u308c\u3092\u3001\u90e8\u5c4b\u3067\u306e\u793c\u5100\u6b63\u3057\u3044\u4f1a\u8a71\u306b\u4f8b\u3048\u3066\u307f\u307e\u3057\u3087\u3046\uff1a<\/p>\n\n\n\n

    \n

  1. \u307e\u305a\u805e\u304f\uff1a<\/strong> \u30c7\u30d0\u30a4\u30b9\u306f\u3001\u30c7\u30fc\u30bf\u9001\u4fe1\u524d\u306b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b1\u30fc\u30d6\u30eb\u3092\u300c\u805e\u3044\u3066\u300d\u3001\u7a7a\u3044\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002.<\/p><\/li>

  2. \u30c7\u30fc\u30bf\u9001\u4fe1\uff1a<\/strong> \u7dda\u304c\u7a7a\u3044\u3066\u3044\u308c\u3070\u3001\u30c7\u30fc\u30bf\u30d1\u30b1\u30c3\u30c8\u3092\u9001\u4fe1\u3057\u307e\u3059\u3002.<\/p><\/li>

  3. \u30b3\u30ea\u30b8\u30e7\u30f3\u691c\u51fa\uff1a<\/strong> 2\u53f0\u306e\u30c7\u30d0\u30a4\u30b9\u304c\u540c\u6642\u306b\u30c7\u30fc\u30bf\u3092\u9001\u4fe1\u3059\u308b\u3068\u3001\u300c\u30b3\u30ea\u30b8\u30e7\u30f3\uff08\u885d\u7a81\uff09\u300d\u304c\u767a\u751f\u3057\u307e\u3059\u3002\u4e21\u65b9\u306e\u30c7\u30d0\u30a4\u30b9\u304c\u3053\u308c\u3092\u691c\u51fa\u3057\u3001\u30e9\u30f3\u30c0\u30e0\u306a\u6975\u3081\u3066\u77ed\u3044\u6642\u9593\u5f85\u3063\u3066\u304b\u3089\u518d\u9001\u4fe1\u3092\u8a66\u307f\u307e\u3059\u3002.<\/p><\/li>\n<\/ol>\n\n\n\n

    \u3053\u306e\u30b7\u30b9\u30c6\u30e0\u306f\u3001 IEEE 802.3\u898f\u683c<\/strong><\/a>, \u306b\u3088\u3063\u3066\u7ba1\u7406\u3055\u308c\u3001\u60c5\u5831\u306e\u79e9\u5e8f\u3042\u308b\u6d41\u308c\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002\u5404\u30c7\u30d0\u30a4\u30b9\u306b\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30ab\u30fc\u30c9\u306e\u300c\u4f4f\u6240\u300d\u3068\u3057\u3066\u6a5f\u80fd\u3057\u3001\u30c7\u30fc\u30bf\u304c\u6b63\u3057\u3044\u5b9b\u5148\u306b\u5c4a\u304f\u3088\u3046\u4fdd\u8a3c\u3059\u308b\u3001\u56fa\u6709\u306e\u7269\u7406\u30a2\u30c9\u30ec\u30b9\u3067\u3042\u308b MAC\u30a2\u30c9\u30ec\u30b9\uff08\u30e1\u30c7\u30a3\u30a2\u30fb\u30a2\u30af\u30bb\u30b9\u30fb\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u30fb\u30a2\u30c9\u30ec\u30b9\uff09<\/strong>, \u304c\u5272\u308a\u5f53\u3066\u3089\u308c\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n

    \ud83d\udcc4 \u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u30b1\u30fc\u30d6\u30eb\u3068\u901f\u5ea6\uff1a\u9069\u5207\u306a\u30b1\u30fc\u30d6\u30eb\u3092\u9078\u3076<\/strong><\/h2>\n\n\n\n

    \u3059\u3079\u3066\u306e\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u30b1\u30fc\u30d6\u30eb\u304c\u540c\u7b49\u3068\u3044\u3046\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u300cCat\uff08\u30ab\u30c6\u30b4\u30ea\uff09\u300d\u756a\u53f7\u3067\u5206\u985e\u3055\u308c\u3066\u304a\u308a\u3001\u305d\u308c\u305e\u308c\u306e\u6027\u80fd\u80fd\u529b\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u3001\u6700\u3082\u4e00\u822c\u7684\u306a\u30bf\u30a4\u30d7\u306e\u7c21\u5358\u306a\u30ac\u30a4\u30c9\u3067\u3059\uff1a<\/p>\n\n\n\n

    \n\n<\/colgroup>

    \u30b1\u30fc\u30d6\u30eb\u30ab\u30c6\u30b4\u30ea<\/p><\/th>

    \u6700\u5927\u5bfe\u5fdc\u901f\u5ea6<\/p><\/th>

    \u5e2f\u57df\u5e45\uff08\u5468\u6ce2\u6570\uff09<\/p><\/th>

    \u4e00\u822c\u7684\u306a\u4f7f\u7528\u30b1\u30fc\u30b9<\/p><\/th><\/tr>

    \u30ab\u30c6\u30b4\u30ea5<\/strong><\/p><\/td>

    100Mbps<\/p><\/td>

    100MHz<\/p><\/td>

    \u53e4\u304f\u306a\u3063\u3066\u3044\u308b\u305f\u3081\u3001\u65b0\u898f\u8a2d\u7f6e\u306b\u306f\u63a8\u5968\u3055\u308c\u307e\u305b\u3093\u3002.<\/p><\/td><\/tr>

    Cat 5e<\/strong><\/p><\/td>

    1Gbps\uff081000 Mbps\uff09<\/p><\/td>

    100MHz<\/p><\/td>

    \u307b\u3068\u3093\u3069\u306e\u5bb6\u5ead\u304a\u3088\u3073\u30aa\u30d5\u30a3\u30b9\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u6a19\u6e96\u3002.<\/p><\/td><\/tr>

    Cat 6<\/strong><\/p><\/td>

    1Gbps\uff08\u77ed\u8ddd\u96e2\u3067\u306f\u6700\u592710 Gbps\u307e\u3067\uff09<\/p><\/td>

    250MHz<\/p><\/td>

    \u30b2\u30fc\u30df\u30f3\u30b0\u30014K\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u3001\u5e83\u3044\u4f4f\u5b85\u74b0\u5883\u306b\u6700\u9069\u3002.<\/p><\/td><\/tr>

    Cat 6a<\/strong><\/p><\/td>

    10Gbps<\/p><\/td>

    500MHz<\/p><\/td>

    \u5c02\u9580\u7528\u9014\u3001\u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc\u3001\u9ad8\u6027\u80fd\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5411\u3051\u3002.<\/p><\/td><\/tr>

    \u30ab\u30c6\u30b4\u30ea7\/8<\/strong><\/p><\/td>

    10\/40Gbps<\/p><\/td>

    600\/2000MHz<\/p><\/td>

    \u9ad8\u5468\u6ce2\u5c02\u7528\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3001\u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc\u5411\u3051\u3002.<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n

    \u307b\u3068\u3093\u3069\u306e\u30e6\u30fc\u30b6\u30fc\u306b\u3068\u3063\u3066\u3001 <\/span>Cat 5e\u307e\u305f\u306fCat 6<\/strong><\/span> \u30b1\u30fc\u30d6\u30eb\u3067\u5341\u5206\u3067\u3059\u3002\u30de\u30eb\u30c1\u30ae\u30ac\u30d3\u30c3\u30c8\u306e\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u5951\u7d04\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u3001\u3042\u308b\u3044\u306f\u5185\u90e8\u3067\u5927\u91cf\u306e\u30d5\u30a1\u30a4\u30eb\u8ee2\u9001\u3092\u884c\u3046\u5834\u5408\u306f\u3001 <\/span>Cat 6a<\/strong><\/span> Cat 6a\u4ee5\u4e0a.<\/span><\/p>\n\n\n\n

    \ud83d\udcc4 \u30a4\u30fc\u30b5\u30cd\u30c3\u30c8 vs. Wi-Fi\uff1a\u306a\u305c\u6709\u7dda\u63a5\u7d9a\u3092\u9078\u3076\u306e\u304b\uff1f<\/strong><\/h2>\n\n\n\n

    Wi-Fi\u304c\u3053\u308c\u307b\u3069\u4fbf\u5229\u306a\u306e\u306b\u3001\u306a\u305c\u30b1\u30fc\u30d6\u30eb\u3092\u4f7f\u3046\u306e\u3067\u3057\u3087\u3046\u304b\uff1f\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u306e\u4e3b\u306a\u5229\u70b9\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\uff1a<\/p>\n\n\n\n