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📄 67-net10cross.htm

📁 关于单片机接口技术的文档
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<title>以太网10/100Base-T对绞电缆</title>
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<p align="center"><font size="4" color="#0000FF"><strong><u>以太网10/100Base-T对绞电缆</u></strong></font></p>

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    <td width="100%" align="center" height="26" bgcolor="#FFC8AA"><font color="#000080">[ <a target="_self" href="hardware.htm" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware.htm">返回目录</a> ]</font></td>
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<p><font color="#008080">以太网对绞电缆用于 Hub 
之间扩充时的级连，或用于两台计算机不用 Hub 
而直接相连，电缆两端的插头都是 8 针 (RJ45) 公插头：</font></p>

<p><img src="conn_rj45m.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/conn_rj45m.gif" alt="RJ45 FEMALE CONNECTOR" WIDTH="106" HEIGHT="126"></p>

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    <td width="100%" align="center" height="24" bgcolor="#C8C8FF"><font color="#000080">引脚定义</font></td>
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    <th bgcolor="#0000FF"><font color="#FFFF00">Name</font></th>
    <th bgcolor="#0000FF"><font color="#FFFF00">NIC1</font></th>
    <th bgcolor="#0000FF"><font color="#FFFF00">NIC2</font></th>
    <th bgcolor="#0000FF"><font color="#FFFF00">Name</font></th>
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    <td bgcolor="#C8C8FF"><font color="#0000FF">TX+</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">1</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">3</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">RX+</font></td>
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    <td bgcolor="#C8C8FF"><font color="#0000FF">TX-</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">2</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">6</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">RX-</font></td>
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    <td bgcolor="#C8C8FF"><font color="#0000FF">RX+</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">3</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">1</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">TX+</font></td>
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    <td bgcolor="#C8C8FF"><font color="#0000FF">RX-</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">6</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">2</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">TX-</font></td>
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