台式机常用接口定义汇总.doc

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：PinNameDirDescription1CDCarrier Detect2RXDReceive Data3TXDTransmit Data4DTRData Terminal Ready5GNDSystem Ground6DSRData Set Ready7RTSRequest to Send8CTSClear to Send9RIRing Indicator2、25针串口PC 机上的25针串口为25针公插，引脚定义为：PinNameDirDescription1GNDShield Ground2TXDTransmit Data3RXDReceive Data4RTSRequest to Send5CTSClear to Send6DSRData Set Ready7GNDSystem Ground8CDCarrier Detect9-RESERVED10-RESERVED11STFSelect Transmit Channel12S.CDSecondary Carrier Detect13S.CTSSecondary Clear to Send14S.TXDSecondary Transmit Data15TCKTransmission Signal Element Timing16S.RXDSecondary Receive Data17RCKReceiver Signal Element Timing18LLLocal Loop Control19S.RTSSecondary Request to Send20DTRData Terminal Ready21RLRemote Loop Control22RIRing Indicator23DSRData Signal Rate Selector24XCKTransmit Signal Element Timing25TITest Indicator3、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/STROBEStrobe2D0Data Bit 03D1Data Bit 14D2Data Bit 25D3Data Bit 36D4Data Bit 47D5Data Bit 58D6Data Bit 69D7Data Bit 710/ACKAcknowledge11BUSYBusy12PEPaper End13SELSelect14/AUTOFDAutofeed15/ERRORError16/INITInitialize17/SELINSelect In18GNDSignal Ground19GNDSignal Ground20GNDSignal Ground21GNDSignal Ground22GNDSignal Ground23GNDSignal Ground24GNDSignal Ground25GNDSignal Ground4、15针VGA 显卡接口VGA 是 Video Graphics Adapter 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：PinNameDirDescription1REDRed Video (75 ohm, 0.7 V p-p)2GREENGreen Video (75 ohm, 0.7 V p-p)3BLUEBlue Video (75 ohm, 0.7 V p-p)4ID2Ground5GNDGround6RGNDRed Ground7GGNDGreen Ground8BGNDBlue Ground9KEY-Key 10SGNDSync Ground11ID0Ground12ID1 or SDASDA13HSYNC or CSYNCHorizontal Sync (or Composite Sync)14VSYNCVertical Sync15ID3 or SCLSCL5、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+5 VDC2/B1Button 13X1Joystick 1 - X4GNDGround5GNDGround6Y1Joystick 1 - Y7/B2Button 28+5V+5 VDC9+5V+5 VDC10/B4Button 411X2Joystick 2 - X12MIDITXDMIDI Transmit13Y2Joystick 2 - Y14/B3Button 315MIDIRXDMIDI Receive6、PS/2 接口PS/2 鼠标/键盘接口为 6 针母插，引脚定义为：PinNameDirDescription1DATAKey Data2n/c-Not connected3GNDGnd4VCCPower , +5 VDC5CLKClock6n/c-Not connected7、键盘接口键盘接口为 5 针母插座，引脚定义为：PinNameDescriptionTechnical1CLOCKClockCLK/CTS, Open-collector2DATADataRxD/TxD/RTS, Open-collector3n/cNot connectedReset on some very old keyboards.4GNDGround5VCC+5 VDC8、USB接口USB 是 Universal Serial Bus 的缩写。外观上计算机一侧为 4 针公插，设备一侧为 4 针母插，引脚定义为： PinNameDescription1VCC+5 VDC2D-Data -3D+Data +4GNDGround9、RJ45 接口(以太网10/100Base-T )网卡(或板载网卡)上RJ45接口(以太网 10-100Base-T )的外观为 8 芯母插座 (RJ45)，引脚定义为：PinNameDescription1TX_D1+Tranceive Data+2TX_D1-Tranceive Data-3RX_D2