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 <TITLE>The 3 Button Serial Mouse mini-HOWTO: 電纜，延長與轉接器</TITLE>
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<H2><A NAME="s11">11. 電纜，延長與轉接器</A></H2>

<P>一個滑鼠轉接器僅需一條如下所示的電纜： TxD 與  RxD 用作資料傳輸， RTS 及 / 或 DTR 用作電源與接地，轉譯成 pin 的編號為：
<BLOCKQUOTE><CODE>
<PRE>
            9-pin port                  25-pin port
        TxD     3                2
        RxD     2                3
        RTS     7                4
        DTR     4               20
        Gnd     5                7
</PRE>
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<P>上述的表格也許是有用的，如果你需要去安排一個轉接器在 9 與 25 pin 接頭之間，或延長電纜。
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