谁能告诉我一根网线上出俩个头。这是因为什么？ 谁能告诉我这是什么线？我想改成网线能么？
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100M\u7684\u56fd\u6807568A\u7ebf\u5e8f\u662f\u767d\u6a59\u3001\u6a59\u3001\u767d\u7eff\u3001\u84dd\u3001\u767d\u84dd\u3001\u7eff\u3001\u767d\u68d5\u3001\u68d5\uff0c
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10M\u7ebf\u5e8f\u6ca1\u4ec0\u4e48\u610f\u4e49\uff0c\u53ea\u8981\u4e24\u7aef\u6c34\u6676\u5934\u7ebf\u5e8f\u76f8\u540c\u5c31\u53ef\u4ee5\u6ee1\u8db3\u3002
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\u853d\u53cc\u7ede\u7ebf\uff08UTP\uff09\u3002\u5728EIA/TIA-568A \u6807\u51c6\u4e2d\uff0c\u5c06\u53cc\u7ede\u7ebf\u6309\u7535\u6c14\u7279\u6027\u533a\u5206\u6709\uff1a\u4e09\u7c7b\u3001\u56db\u7c7b\u3001\u4e94\u7c7b\u7ebf\u3002\u7f51\u7edc\u4e2d\u6700\u5e38\u7528\u7684\u662f\u4e09
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10Base-T\u7684\u6807\u51c6\u3002\u7b2c\u4e94\u7c7b\u53cc\u7ede\u7ebf\u76ee\u524d\u5360\u6709\u6700\u5927\u7684LAN\u5e02\u573a\uff0c\u6700\u9ad8\u901f\u7387\u53ef\u8fbe 100Mbps\uff0c\u7b26\u5408IEEE802.3 100Base-T\u7684\u6807\u51c6\u3002
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EIA/TIA\u7684\u5e03\u7ebf\u6807\u51c6\u4e2d\u89c4\u5b9a\u4e86\u4e24\u79cd\u53cc\u7ede\u7ebf\u7684\u7ebf\u5e8f568A\u4e0e568B\u3002
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\u3000\u3000100BASE-T4 RJ-45\u5bf9\u53cc\u7ede\u7ebf\u7684\u89c4\u5b9a\u5982\u4e0b\uff1a rj45\u6c34\u6676\u5934,RJ45\u5934,\u6c34\u6676\u5934,\u7f51\u7edc\u63a5\u5934,RJ45,\u5e03\u7ebf \u3000\u3000
1\u30012\u7528\u4e8e\u53d1\u9001\uff0c3\u30016\u7528\u4e8e\u63a5\u6536\uff0c4\u30015\uff0c7\u30018\u662f\u53cc\u5411\u7ebf\u3002
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MDI\u53e3\u3002 10Mbps\u7f51\u7ebf\u53ea\u8981\u53cc\u7ede\u7ebf\u4e24\u7aef\u4e00\u4e00\u5bf9\u5e94\u5373\u53ef\uff0c\u4e0d\u5fc5\u8003\u8651\u4e0d\u540c\u989c\u8272\u7684\u7ebf\u7684\u6392\u5e8f\uff0c\u800c\u5982\u679c\u4f7f\u7528100M\u901f\u7387\u76f8\u8fde\u7684\u8bdd\uff0c\u5219
\u5fc5\u987b\u4e25\u683c\u6309\u7167EIA/TIA 568A\u6216 568B\u5e03\u7ebf\u6807\u51c6\u5236\u4f5c\u3002\u6c34\u6676\u5934|\u7f51\u7ebf|\u6c34\u6676\u5934|\u7f51\u7ebf|\u6c34\u6676\u5934|\u53cc\u7ede\u7ebf|\u6c34\u6676\u5934|\u7f51\u7ebf|\u6c34\u6676\u5934|\u7f51
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A\u7aef\uff1a\u6a59\u767d\uff0c\u6a59\uff0c\u7eff\u767d\uff0c\u84dd\uff0c\u84dd\u767d\uff0c\u7eff\uff0c\u68d5\u767d\uff0c\u68d5\uff1b
B\u7aef\uff1a\u7eff\u767d\uff0c\u7eff\uff0c\u6a59\u767d\uff0c\u84dd\uff0c\u84dd\u767d\uff0c\u6a59\uff0c\u68d5\u767d\uff0c\u68d5\u3002
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Ping \u547d\u4ee4\u3002 \u5982\u679c\u5de5\u4f5c\u7ad9\u5f97\u5230\u670d\u52a1\u5668\u7684\u54cd\u5e94\u5219\u8868\u660e\u7ebf\u8def\u6b63\u5e38\u548c\u7f51\u7edc\u534f\u8bae\u5b89\u88c5\u6b63\u5e38, \u800c\u8fd9\u662f\u7f51\u7edc\u5e94\u7528\u8f6f\u4ef6\u80fd\u6b63\u5e38\u5de5\u4f5c\u7684\u57fa
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2.AVAYA(CommScope)
\u5355\u5c42\u7ed3\u6784,\u5904\u7406\u597d\u5341\u5b57\u82af,\u5957\u597d\u6263\u73af,\u5bfc\u5165\u5bfc\u7ebf\u6846\u67b6\u6263\u597d,\u88c1\u9f50.
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\u5168\u8fc7\u7a0b\u8981\u5c0f\u5fc3,\u4ed4\u7ec6,
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2.\u5343\u5146\u4e3b\u5e72\u4ea4\u6362\u673a\uff0c\u63a5\u767e\u5146\u5206\u4ea4\u6362\u673a\uff0c\u7528\u4ec0\u4e48\u7ebf\uff1f \u4e70\u5e26\u4e241000Mbps\u94dc\u53e3\u768426***\u6362\u673a .\u516d\u7c7b\u7ebf(CAT6)
3.\u5343\u5146\u4e3b\u5e72\u4ea4\u6362\u673a\uff0c\u63a5\u65b0\u670d\u52a1\u5668\uff0c\u7528\u4ec0\u4e48\u7ebf\uff1f .\u516d\u7c7b\u7ebf(CAT6)
4.\u5343\u5146\u4e3b\u5e72\u4ea4\u6362\u673a\uff0c\u63a5\u8001\u670d\u52a1\u5668\uff0c\u7528\u4ec0\u4e48\u7ebf\uff1f \u8d85\u4e94\u7c7b(CAT5E).,\u8dd1100Mbps
5.\u5343\u5146\u5206\u4ea4\u6362\u673a\uff0c\u63a5\u65b0\u673a\u5668\uff0c\u7528\u4ec0\u4e48\u7ebf\uff1f .\u9884\u7b97\u591a\u5c31\u7528\u516d\u7c7b\u7ebf(CAT6),\u8d77\u7801\u8981\u7528\u8d85\u4e94\u7c7b(CAT5E).
6.\u767e\u5146\u5206\u4ea4\u6362\u673a\uff0c\u63a5\u65e7\u673a\u5668\uff0c\u7528\u4ec0\u4e48\u7ebf\uff1f\u7528\u8d85\u4e94\u7c7b.\u539f\u6765\u6709\u53ef\u4ee5\u4e0d\u52a8,\u8d28\u91cf\u592a\u5dee\u7684\u8bdd\u526a\u6389
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\u8fd9\u6837\u901f\u5ea6\u81f3\u5c11\u8fbe\u5230 300M
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PC-PC:\u53cd\u7ebf
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\u7684\u662fT568B\u6807\u51c6\u63a5\u7ebf\u65b9\u6cd5\uff0c\u90a3\u6211\u4eec\u5c31\u9075\u5faaEIA\uff0fTIA 568B\u7684\u6807\u51c6\u6765\u5236\u4f5c\u63a5\u5934\u3002
\u3000\u3000\u5982\u679c\u60a8\u505a\u7684\u662fHUB\u4e0e\u8ba1\u7b97\u673a\u7684\u8fde\u63a5\u7ebf\uff0c\u4e24\u7aef\u4f7f\u7528\u540c\u4e00\u6807\u51c6\u5c31\u53ef\u4ee5\u4e86\u3002\u5982\u662f\u4e24\u53f0\u8ba1\u7b97\u673a\u5bf9\u63a5\u7684\u7ebf\uff0c\u5219\u9700\u8981\u4e00\u7aef\u7528
EIA568A\uff0c\u53e6\u4e00\u7aef\u4f7f\u7528EIA568B\u7684\u505a\u6cd5\u3002
\u3010\u7f51\u7ebf\u5236\u4f5c\u7684\u4e24\u79cd\u6807\u51c6 \u3011
\u2605 \u666e\u901a\u7f51\u7ebf\u5236\u4f5c\u6bd4\u8f83\u7b80\u5355\uff0c\u4e24\u8fb9RJ45\u4e2d\u7ebf\u7684\u6392\u5217\u65b9\u5f0f\u5b8c\u5168\u4e00\u6837\uff0c\u90fd\u4e3a12345678\u3002
\u2605 \u5982\u679c\u662f\u53cc\u673a\u76f4\u8054\uff0c\u5fc5\u987b\u4f7f\u7528\u4ea4\u53c9\u7f51\u7ebf\uff08\u5b9e\u9645\u4e0a\u5c31\u662f1236\u56db\u6839\u7ebf\u4ea4\u53c9\uff09\uff0c\u5b9e\u9645\u4e0a\u7535\u4fe1ADSL\u6240\u63d0\u4f9b\u7684\u90a3\u6839\u7f51\u7ebf\u5c31\u662f\u8fd9\u79cd\u7f51
\u7ebf\uff0c\u5176\u4e24\u5934\u7684\u6392\u5217\u65b9\u5f0f\u5206\u522b\u4e3a\uff1a
1 2 3 4 5 6 7 8
3 6 1 4 5 2 7 8
\u3000\u3000\u5982\u679c\u662f\u4f7f\u7528\u7b80\u6613\u7f51\u7ebf\u6d4b\u91cf\u4eea\uff0c\u5176\u706f\u8df3\u987a\u5e8f\u5e94\u4e3a\uff1a12\u219245\u219278\u219236\u219212\uff0c\u4e0b\u9762\u66f4\u8be6\u7ec6\u7684\u518d\u8bf4\u4e00\u904d\uff1a
\u3000\u3000\u4e00\u7aef\uff1a \u767d\u6a59\uff0f\u6a59\uff0f\u767d\u7eff\uff0f\u84dd\uff0f\u767d\u84dd\uff0f\u7eff\uff0f\u767d\u68d5\uff0f\u68d5\uff0812345678\uff09 1 2 3 4 5 6 7 8
\u3000\u3000\u4e00\u7aef\uff1a \u767d\u7eff\uff0f\u7eff\uff0f\u767d\u6a59\uff0f\u84dd\uff0f\u767d\u84dd\uff0f\u6a59\uff0f\u767d\u68d5\uff0f\u68d5\uff0836145278\uff09 3 6 1 4 5 2 7 8
\u4f60\u4e5f\u53ef\u4ee5\u628a4578\u56db\u6839\u7ebf\u4e5f\u4ea4\u53c9\uff0c\u5373\uff1a
1 2 3 4 5 6 7 8
3 6 1 7 8 2 4 5
1 2 3 4 5 6 7 8
\u767d\u6a59 \u6a59 \u767d\u7eff \u84dd \u767d\u84dd \u7eff \u767d\u68d5 \u68d5
TX_D1+ TX_D1- TX_D2+ TX_D2- TX_D3+ TX_D3- TX_D4+ TX_D4-
TX_D2+ TX_D3- TX_D1+ TX_D2- TX_D3+ TX_D1- TX_D4+ TX_D4-
\u767d\u7eff \u7eff \u767d\u6a59 \u84dd \u767d\u84dd \u6a59 \u767d\u68d5 \u68d5
1 2 3 4 5 6 7 8
\u8fd9\u4e2a\u5c31\u662f\u7535\u8bdd\u7ebf\u5427\u3002
\u7f51\u7ebf\u662f8\u82af\u7684\u7ebf\uff0c\u6709\u4e9b\u662f4\u82af\u7684\u7ebf\uff0c\u4f46\u53ea\u80fd100m\u3002
\u8fd9\u4e2a\u65e0\u6cd5\u66f4\u6539\u6210\u7f51\u7ebf\u7684\u3002
条件：网线、网线钳。
方法：拨开网线，一共8根，看水晶头里的洞，按我说的插线，然后夹水晶头。
分成两组一组是:白橙,橙,白绿,空,空,绿,空,空
另一组是:白棕,棕,白蓝,空,空,蓝,空,空
注意：一定要买质量好的网线，并且网线不能走得太长。
应该是通电话线的！！单网线的话应该没有这个
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