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\u65b0\u6d6a\u79d1\u6280\u54a8\u8be2\u5317\u4eac\u3001\u4e0a\u6d77\u3001\u5357\u4eac\u3001\u5e7f\u5dde\u7b49\u5730\u7535\u4fe1\u516c\u53f8\uff0c\u83b7\u6089\u5728\u51e0\u4e2a\u4e3b\u8981\u57ce\u5e02\u4e2a\u4eba\u7528\u6237ADSL\u4e0a\u7f51\u6700\u9ad8\u901f\u7387\u4ecd\u4e3a2\uff5e3Mbps\uff0c\u4e14\u8fd1\u671f\u5e76\u672a\u6709\u63a8\u51faADSL2+\u670d\u52a1\u7684\u8ba1\u5212\u3002<\/p>\n
ADSL2+\u915d\u917f\u5df2\u4e45<\/p>\n
\u65e9\u57282003\u5e74\u5e95\uff0c\u534e\u4e3a\u7b49DSL\u4f9b\u8d27\u5546\u5c31\u5b8c\u6210\u4e86ADSL2+\u76f8\u5173\u4ea7\u54c1\u7684\u6d4b\u8bd5\uff0c\u5728\u6c5f\u82cf\u7535\u4fe1\u3001\u65b0\u7586\u7535\u4fe1\u3001\u5e7f\u897f\u7535\u4fe1\u7b49\u5730\u5f00\u901a\u5b9e\u9a8c\u5c40\uff0c\u6709\u6548\u89e3\u51b3\u4e86\u8fd0\u8425\u5546\u5728\u4e1a\u52a1\u53d1\u653e\u8fc7\u7a0b\u4e2d\u9047\u5230\u76843\u5343\u7c73\u4ee5\u4e0a\u7684\u957f\u8ddd\u79bb\u7ebf\u8def\u4e1a\u52a1\u5f00\u901a\u96be\u7684\u95ee\u9898\uff0c\u5b9e\u9645\u653e\u53f7\u7528\u6237\u6700\u8fdc\u8fbe\u52305.4\u5343\u7c73\u3002<\/p>\n
\u5728\u5404\u5730\u7684\u8bd5\u70b9\u4e2d\uff0c\u4e5f\u6709\u5730\u65b9\u5a92\u4f53\u7684\u7535\u4fe1\u5efa\u8bbe\u6210\u5c31\u5ba3\u4f20\u7a3f\u4ef6\u9646\u7eed\u520a\u53d1\u3002<\/p>\n
\u5982\u300a\u5f20\u5bb6\u6e2f\u65e5\u62a5\u300b\u62a5\u9053\u7684\u7535\u4fe1\u519c\u6751\u4fe1\u606f\u5316\u5efa\u8bbe\u8fdb\u7a0b\uff0c\u660e\u786e\u6307\u51fa\u8be5\u5e02\u201c\u7535\u4fe1\u5bbd\u5e26\u63a5\u5165\u70b9\u786c\u4ef6\u8bbe\u5907\u91c7\u7528\u4e86ADSL2+\u5bbd\u5e26\u63a5\u5165\u6280\u672f\uff0c\u4e0a\u884c\u5e26\u5bbd\u53ef\u8fbe\u52301M\uff0c\u4e0b\u884c\u5e26\u5bbd\u8fbe25M\u3002\u201d\u5728\u5b9e\u9645\u4f7f\u7528\u4e2d\uff0c\u5f20\u5bb6\u6e2f\u7535\u4fe1\u63d0\u4f9b\u519c\u6751\u5bbd\u5e263M\u4ee5\u4e0a\u3001\u57ce\u95474M\u4ee5\u4e0a\u7684\u5bbd\u5e26\u63a5\u5165\u670d\u52a1\uff0c\u5df2\u67093.2\u4e07\u519c\u6237\u88c5\u4e0a\u5177\u5907ADSL2+\u6280\u672f\u7684\u5bbd\u5e26\u3002<\/p>\n
\u4ece2005\u5e74\u8d77\u5e7f\u4e1c\u7701\u65b0\u5efa\u53ca\u6269\u5bb9\u7684DSLAM\u8282\u70b9\u90fd\u652f\u6301ADSL2+\uff0c\u76ee\u524d\u5e7f\u4e1c\u7535\u4fe1\u5404\u5206\u516c\u53f8\u4e3b\u8981\u8282\u70b9\u4e5f\u90fd\u53ef\u4ee5\u63d0\u4f9bADSL2+\u76f8\u5173\u4e1a\u52a1\u3002<\/p>\n
ADSL2+\u662f\u5bbd\u5e26\u6f14\u8fdb\u65b9\u5411<\/p>\n
\u7535\u4fe1\u5df2\u7ecf\u5728\u5411LAN\u548c\u5149\u7ea4\u63a5\u5165\u6a21\u5f0f\u8fc8\u8fdb\uff0c\u4f46\u7531\u4e8e\u6210\u672c\u9ad8\u6602\u3001\u7f51\u7edc\u5347\u7ea7\u5468\u671f\u8f83\u957f\u7b49\u56e0\u7d20\u666e\u53ca\u5c1a\u6709\u96be\u5ea6\uff0c\u8fd9\u4e5f\u662fADSL2+\u4e3a\u8fd0\u8425\u5546\u6240\u9752\u7750\uff0c\u6210\u4e3aIPTV\u4e13\u7528\u4f20\u8f93\u901a\u9053\u7684\u4e3b\u8981\u539f\u56e0\u3002<\/p>\n
\u4e2d\u56fd\u7535\u4fe1\u7814\u7a76\u9662\u4e00\u4f4d\u4eba\u58eb\u5bf9\u65b0\u6d6a\u79d1\u6280\u8868\u793a\uff1a\u201cADSL2+\u662f\u6211\u4eec\u7684\u6f14\u8fdb\u65b9\u5411\uff0c\u7535\u4fe1\u73b0\u6709\u7f51\u7edc\u5e76\u975e\u4e00\u6b21\u6027\u5347\u7ea7\u66f4\u6362\uff0c\u6709\u4e9b\u6295\u8d44\u5bcc\u88d5\u7684\u5730\u65b9\u5728\u505a\u8bd5\u70b9\u3002\u201d\u4ed6\u5e76\u6307\u51fa\u4ee5\u4e0b\u56e0\u7d20\u5f71\u54cdADSL2+\u7684\u5b9e\u9645\u4f7f\u7528\u901f\u7387\uff1a<\/p>\n
1. DSLAM\u6570\u5b57\u7528\u6237\u7ebf\u63a5\u5165\u590d\u7528\u5668\u5347\u7ea7\uff1b<\/p>\n
2. Modem\u5177\u5907ADSL2+\u529f\u80fd\uff0c\u4e2d\u5174\u3001\u534e\u4e3a\u7b49\u54c1\u724c\u7684ADSL2+ Modem\u552e\u4ef7\u5728130\u5143\u5de6\u53f3\uff1b<\/p>\n
3. \u901a\u4fe1\u7ebf\u8def\u7684\u8d28\u91cf\uff0c\u4e00\u4e9b\u8001\u65e7\u63a5\u5165\u7ebf\u8def\u9700\u8981\u66f4\u6362\uff1b<\/p>\n
4. \u9aa8\u5e72\u7f51\u5206\u914d\u7684\u5e26\u5bbd\uff0c\u603b\u5e26\u5bbd\u8d44\u6e90\u6709\u9650\uff0c\u8fd9\u4e5f\u662f\u5f88\u591a\u5df2\u7ecf\u5177\u5907ADSL2+\u7ebf\u8def\u5730\u533a\u4e3a\u4f55\u53ea\u67092\uff5e3Mbps\u670d\u52a1\u7684\u539f\u56e0\u3002<\/p>\n
\u7b80\u8a00\u4e4b\uff0cADSL2+\u7f51\u7edc\u7684\u5e73\u6ed1\u5347\u7ea7\u53ef\u5229\u7528\u73b0\u6709\u7684ADSL\u7f51\u7edc\uff0c\u5728DSLAM\u4e0a\u5b89\u88c5\u652f\u6301ADSL2+\u7684\u8bbe\u5907\uff0c\u540c\u65f6\u7528\u6237\u7aef\u66f4\u6362\u4e00\u53f0ADSL2+\u7684Modem\u5373\u53ef\u4ee5\u5b8c\u6210\u3002<\/p>\n
\u7535\u4fe1\u8fd0\u8425\u5546\u610f\u5728IPTV<\/p>\n
\u65e5\u672c\u7ee72004\u5e74\u53d1\u5c55ADSL2+\u4e4b\u540e\uff0c2005\u5e74\u5df2\u63d0\u51faADSL2++\u7684\u9700\u6c42\uff0c\u76ee\u524d\u8be5\u56fd\u5404\u5927\u5bbd\u5e26\u8fd0\u8425\u5546\u6b63\u7ee7\u7eed\u56f4\u7ed5ADSL\u63d0\u901f\u95ee\u9898\u8fdb\u884c\u7740\u6fc0\u70c8\u7684\u53ae\u6740\uff1b\u800c\u6211\u56fd\u867d\u7136\u5904\u5728\u63a8\u5e7f\u4f20\u7edfADSL\u4f7f\u7528\u7684\u9636\u6bb5\uff0c\u4f46\u662f\u56fa\u7f51\u6536\u5165\u7684\u74f6\u9888\u5df2\u7136\u663e\u73b0\uff0c\u8feb\u5207\u9700\u8981\u5f00\u5c55IPTV\u7b49\u65b0\u4e1a\u52a1\u5b9e\u73b0\u65b0\u7684\u76c8\u5229\u589e\u957f\u70b9\u3002<\/p>\n
\u4e2d\u56fd\u7535\u4fe1\u4e0e\u4e0a\u6d77\u6587\u5e7f\u5728\u5168\u56fd17\u4e2a\u7701\u4efd\u5c55\u5f00\u4e86IPTV\u8bd5\u70b9\u5de5\u4f5c\uff0c\u4e2d\u56fd\u7f51\u901a\u4e5f\u572820\u591a\u4e2a\u57ce\u5e02\u8fdb\u884c\u76f8\u5173\u7684\u8bd5\u70b9\u3002\u4ece\u53cd\u9988\u7684\u60c5\u51b5\u6765\u770b\uff0c\u63a5\u5165\u7f51\u7684\u5e26\u5bbd\u4e0d\u8db3\u76f4\u63a5\u5f71\u54cd\u4e86\u753b\u9762\u7684\u6d41\u7545\u5ea6\u3002\u4e2d\u56fd\u7535\u4fe1\u4ece\u4eca\u5e742\u6708\u8d77\uff0c\u4e0e\u4e0a\u6d77\u8d1d\u5c14\u963f\u5c14\u5361\u7279\u5408\u4f5c\u5bf9\u56fd\u518526\u4e2a\u7701\u4efd\u7684\u73b0\u6709\u5bbd\u5e26\u7f51\u7edc\u8fdb\u884c\u5347\u7ea7\uff0c\u6b32\u5c06\u5bbd\u5e26\u901f\u5ea6\u63d0\u9ad8\u81f3\u4f20\u7edfADSL\u76843\u500d\uff0c\u4f7f\u8bdd\u97f3\u3001\u6570\u636e\u548c\u89c6\u9891\u4e09\u91cd\u64ad\u653e(Triple-play)\u4e1a\u52a1\u7684\u5f00\u5c55\u5f97\u5230\u6709\u529b\u652f\u6491\u3002<\/p>\n
\u5728\u5347\u7ea7\u7f51\u7edc\u7684\u540c\u65f6\uff0c\u8fd0\u8425\u5546\u540c\u65f6\u628a\u63d0\u5347APRU\u503c\u7684\u76ee\u5149\u805a\u96c6\u5728\u7cbe\u7ec6\u8ba1\u8d39\u3002<\/p>\n
\u4e2d\u56fd\u7535\u4fe1\u4eba\u58eb\u8ba4\u4e3a\uff0c\u867d\u7136\u6309\u65f6\u957f\u3001\u5305\u6708\u8ba1\u8d39\u7684\u6a21\u5f0f\u5386\u7ecf\u516d\u5e74\u7684\u5b8c\u5584\u4e0e\u53d1\u5c55\u5df2\u7ecf\u975e\u5e38\u6210\u719f\u548c\u7a33\u5b9a\uff0c\u4f46\u662f\u82f1\u56fd\u7535\u4fe1\u7b49\u56fd\u5916\u8fd0\u8425\u5546\u5b9e\u65bd\u7684\u6309\u6d41\u91cf\u8ba1\u8d39\u7684\u6a21\u5f0f\u662f\u672a\u6765\u5bbd\u5e26\u4e92\u8054\u7f51\u53d1\u5c55\u7684\u8d8b\u52bf\u3002\u201c\u667a\u80fd\u6d41\u91cf\u7ba1\u7406\u7cfb\u7edf\u201d\u4e5f\u9891\u9891\u51fa\u73b0\u5728\u5176\u91c7\u8d2d\u540d\u5f55\u4e0a\u3002<\/p>\n
11\u6708\u521d\uff0c\u5728\u5e26\u5bbd\u548c\u7ade\u4e89\u90fd\u7a00\u7f3a\u7684\u5357\u4eac\uff0c\u4e2d\u56fd\u7535\u4fe1\u8fd0\u884c\u4e00\u5e74\u5df2\u4e45\u7684\u6309\u6d41\u91cf\u8ba1\u8d39\u5b9e\u9a8c\u8feb\u4e8e\u7f51\u6c11\u7684\u538b\u529b\u560e\u7136\u800c\u6b62\uff1b\u4f46\u662f\u572811\u67088\u65e5\uff0c\u5357\u4eac\u7535\u4fe1\u5df2\u7ecf\u91cd\u65b0\u5f00\u653e\u4e86\u6d41\u91cf\u5957\u9910\uff0c\u5e76\u4f9b\u5305\u5e74\u5230\u671f\u7684\u8001\u7528\u6237\u9009\u62e9\u3002(\u957f\u4e50\u672a\u592e)<\/p>\n
\u76f8\u5173\u8d44\u6599 ADSL2+<\/p>\n
2002\u5e747\u6708\uff0cITU\u516c\u5e03\u4e86ADSL\u7684\u4e24\u4e2a\u65b0\u6807\u51c6(G.992.3\u548cG.992.4)\uff0c\u5373ADSL2\u30022003\u5e743\u6708\uff0c\u5728\u7b2c\u4e00\u4ee3ADSL\u6807\u51c6\u7684\u57fa\u7840\u4e0a\uff0cITU\u5236\u5b9a\u4e86G.992.5\uff0c\u4e5f\u5c31\u662fADSL2plus(ADSL2+)\u3002<\/p>\n
\u5728\u4e0b\u884c\u65b9\u9762\uff0cADSL2+\u57285000\u82f1\u5c3a(\u65b0\u6d6a\u79d1\u6280\u6ce8\uff1a\u7ea6\u54081.5KM)\u7684\u8ddd\u79bb\u4e0a\u8fbe\u5230\u4e8620Mbps\u7684\u901f\u7387\uff0c\u662fADSL\u4e0b\u884c8Mbps\u76842.5\u500d\u3002\u5e76\u4e14ADSL2+\u548cADSL2\u4e5f\u4fdd\u8bc1\u4e86\u5411\u4e0b\u517c\u5bb9\u3002\u5728\u5b58\u5728\u7a84\u5e26\u5e72\u6270\u7684\u60c5\u51b5\u4e0b\uff0cADSL2\u53ef\u4ee5\u63d0\u9ad8\u901f\u7387\uff0c\u5728\u957f\u8ddd\u79bb\u4e0a\u8fbe\u5230\u6bd4ADSL\u66f4\u4f18\u7684\u6027\u80fd\u3002ADSL2+\u89e3\u51b3\u65b9\u6848\u4f20\u8f93\u8ddd\u79bb\u53ef\u8fbe6KM\uff0c\u5b8c\u5168\u80fd\u6ee1\u8db3\u5bbd\u5e26\u667a\u80fd\u5316\u5c0f\u533a\u7684\u9700\u8981\uff0c\u7a81\u7834\u4e86\u4ee5\u524dADSL\u6280\u672f\u63a5\u5165\u8ddd\u79bb\u53ea\u67093.5KM\u7684\u7f3a\u9677\uff0c\u53ef\u8986\u76d690%\u4ee5\u4e0a\u73b0\u6709\u7684\u7528\u6237\u3002<\/p>\n
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