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請問RS232 25PIN轉9PIN

RS232 25pin轉9pin的接腳圖

1 個解答

評分
  • 宗成
    Lv 7
    1 0 年前
    最佳解答

    版主大大您好:

    附圖如下請參考:

    圖片參考:http://i414.photobucket.com/albums/pp225/tsaybug/R...

    定義可以參考下表:

    9pin Subset Implementation Serial Port RS232

    PIN (9pin)

    PIN (25pin)

    DESCRIPTION

    1

    8

    CD

    Carrier Detect

    2

    3

    RXD

    Receive Data

    3

    2

    TXD

    Transmit Data

    4

    20

    DTR

    Data Terminal Ready

    5

    7

    GND

    System Ground

    6

    6

    DSR

    Data Set Ready

    7

    4

    RTS

    Request to Send

    8

    5

    CTS

    Clear to Send

    9

    22

    RI

    Ring Indicator

    以上報告, 希望能給大大幫助, 謝謝!

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