台式机常用接口定义汇总

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1、台式机常用接口定义汇总目录1、9针串口（不包括主板插座引脚）2、25针串口3、25针并口4、15针VGA显卡接口5、游戏接口6、PS/2接口7、键盘接口8、USB接口9、RJ45接口(以太网10/100Base-T)1、9针串口（不包括主板插座引脚）PC机上的9针串行口是9针公插座，引脚定义为：PinNameDirDescription1CDCarrierDetect2RXDReceiveData3TXDTransmitData4DTRDataTerminalReady5GNDSystemGround6D

2、SRDataSetReady7RTSRequesttoSend8CTSCleartoSend9RIRingIndicator2、25针串口PC机上的25针串口为25针公插，引脚定义为：PinNameDirDescription1GNDShieldGround2TXDTransmitData3RXDReceiveData4RTSRequesttoSend5CTSCleartoSend6DSRDataSetReady7GNDSystemGround8CDCarrierDetect9--RESERVED10--

3、RESERVED11STFSelectTransmitChannel12S.CDSecondaryCarrierDetect13S.CTSSecondaryCleartoSend14S.TXDSecondaryTransmitData15TCKTransmissionSignalElementTiming16S.RXDSecondaryReceiveData17RCKReceiverSignalElementTiming18LLLocalLoopControl19S.RTSSecondaryRequest

4、toSend20DTRDataTerminalReady21RLRemoteLoopControl22RIRingIndicator23DSRDataSignalRateSelector24XCKTransmitSignalElementTiming25TITestIndicator3、25针并口PC机上的并行接口外观是25针母插座，引脚定义为：PinNameDirDescription1/STROBEStrobe2D0DataBit03D1DataBit14D2DataBit25D3DataBit36D

5、4DataBit47D5DataBit58D6DataBit69D7DataBit710/ACKAcknowledge11BUSYBusy12PEPaperEnd13SELSelect14/AUTOFDAutofeed15/ERRORError16/INITInitialize17/SELINSelectIn18GNDSignalGround19GNDSignalGround20GNDSignalGround21GNDSignalGround22GNDSignalGround23GNDSignalGrou

6、nd24GNDSignalGround25GNDSignalGround4、15针VGA显卡接口VGA是VideoGraphicsAdapter的缩写，信号类型为模拟类型，显示卡端的接口为15针母插座，引脚定义为：PinNameDirDescription1REDRedVideo(75ohm,0.7Vp-p)2GREENGreenVideo(75ohm,0.7Vp-p)3BLUEBlueVideo(75ohm,0.7Vp-p)4ID2Ground5GNDGround6RGNDRedGround7GGNDG

7、reenGround8BGNDBlueGround9KEY-Key10SGNDSyncGround11ID0Ground12ID1orSDASDA13HSYNCorCSYNCHorizontalSync(orCompositeSync)14VSYNCVerticalSync15ID3orSCLSCL5、游戏接口MIDI接口和PC游戏杆接口是共用的，外观为15针母插座，引脚定义为：PinNameDirDescription1+5V+5VDC2/B1Button13X1Joystick1-X4GNDGroun

8、d5GNDGround6Y1Joystick1-Y7/B2Button28+5V+5VDC9+5V+5VDC10/B4Button411X2Joystick2-X12MIDITXDMIDITransmit13Y2Joystick2-Y14/B3Button315MIDIRXDMIDIReceive6、PS/2接口PS/2鼠标/键盘接口为6针母插，引脚定义为：PinNameDirDescription1DATAKeyData2n