NI6251

ThefollowingsectionscontaininformationabouttheNIPCI/PCIe/PXI/PXIe-6251,USB-6251ScrewTerminal,USB-6251BNC,andUSB-6251MassTerminationdevices.NIPCI/PCIe/PXI/PXIe-6251NIPCI/PCIe/PXI/PXIe-6251PinoutFigureA-28showsthepinoutoftheNIPCI/PCIe/PXI/PXIe-6251.Foradetaileddescriptionofeachsignal,refertotheI/OConnectorSignalDescriptionssectionofChapter3,ConnectorandLEDInformation.NoteMSeriesdevicesmaybeusedwithmostESeriesaccessories.However,someESeriesaccessoriesusedifferentterminalnames.RefertotheMSeriesandESeriesPinoutComparisonsectionofChapter3,ConnectorandLEDInformation,formoreinformation.Counter/TimerSignal计数器/定时器信号DefaultPinNumber(Name)默认的PIN号码（名字）*:NoteFormoreinformationaboutdefaultNI-DAQmxcounterinputs,refertoConnectingCounterSignalsintheNI-DAQmxHelportheLabVIEWHelpinversion8.0orlater.有关默认NI-DAQmx计数器输入更多的信息，请注意，是指连接在NI-DAQmx帮助或在8或更高版本的LabVIEW帮助计数器信号。NIPCI/PCIe/PXI/PXIe-6251SpecificationsNIPCI或PCIe模块功能说明RefertotheNI625xSpecificationsformoredetailedinformationaboutthe指酒店在Ni基625x更多详细的信息关于我们NIPCI/PCIe/PXI/PXIe-6251device.基于PXI总线的PCI/镍/镍/PCIe设备的功能。NIPCI/PCIe/PXI/PXIe-6251AccessoryandCablingOptions基于PXI总线的PCI/PCIe/镍/镍和cabling附件功能期权Thissectiondescribessomecableandaccessoryoptionsfor本节描述了一些电缆和附件选项MSeriesdeviceswithone68-pinconnector,suchastheM系列设备有一个68针连接器，如NIPCI/PCIe/PXI/PXIe-6251.Refertoni.comforotheraccessory镍/镍/PCI或PCIe模块功能。问题ni.com其他配件SCXIAccessoriesSCXIisaprogrammablesignalconditioningsystemdesignedformeasurementandautomationapplications.ToconnectyourMSeriesdevicetoanSCXIchassis,usetheSCXI-1349adapterandanSHC68-68-EPMcable.YoualsocanuseanMSeriesdevicetocontroltheSCXIsectionofaPXI/SCXIcombinationchassis,suchasthePXI-1010orPXI-1011.TheMSeriesdeviceintherightmostPXIslotcontrolstheSCXIdevices.Nocablesoradaptersarenecessary.RefertotheSCXIAdvisor,availablebygoingtoni.com/infoandenteringtheinfocoderdscad,formoreinformation.SCCAccessoriesSCCprovidesportable,modularsignalconditioningtoyourDAQsystem.ToconnectyourMSeriesdevicetoanSCCmodulecarrier,suchastheSC-2345,SC-2350,orSCC-68,useanSHC68-68-EPMshieldedcable.NotePCIExpressusersshouldconsiderthepowerlimitsoncertainSCCmoduleswithoutanexternalpowersupply.RefertotheNI625xSpecifications,andthePCIExpressDeviceDiskDrivePowerConnectorsectionofChapter3,ConnectorandLEDInformation,forinformationaboutpowerlimitsandincreasingthecurrentthedevicecansupplyonthe+5Vterminal.RefertotheSCCAdvisor,availablebygoingtoni.com/infoandenteringtheinfocoderdscav,formoreinformation.BNCAccessoriesYoucanusetheSHC68-68-EPMshieldedcable,toconnectyourDAQdevicetoBNCaccessories,suchasthefollowing:•BNC-2110—ProvidesBNCconnectivitytoallanalogsignals,somedigitalsignals,andspringterminalsforotherdigitalsignals•BNC-2111—ProvidesBNCconnectivityto16single-endedanaloginputsignals,twoanalogoutputsignals,fiveDIO/PFIsignals,andtheexternalreferencevoltageforanalogoutput•BNC-2120—SimilartotheBNC-2110,andalsohasabuilt-infunctiongenerator,quadratureencoder,temperaturereference,andthermocoupleconnector•BNC-2090A—Desktop/rack-mountabledevicewith22BNCsforconnectinganalog,digital,andtimingsignalsScrewTerminalAccessoriesNationalInstrumentsoffersseveralstylesofscrewterminalconnectorblocks.UseanSHC68-68-EPMshieldedcabletoconnectanMSeriesdevicetoaconnectorblock,suchasthefollowing:•CB-68LPandCB-68LPRunshieldedconnectorblocks•SCC-68I/Oconnectorblockwithscrewterminals,generalbreadboardarea,busterminals,andfourexpansionslotsforSCCsignalconditioningmodules•SCB-68shieldedconnectorblockwithtemperaturesensor•TBX-68DINrail-mountableconnectorblock•TB-2706frontpanelmountedterminalblockforPXIMSeriesdevicesRTSICablesUseRTSIbuscablestoconnecttimingandsynchronizationsignalsamongPCI/PCIExpressdevices,suchasMSeries,ESeries,CAN,andothermeasurement,vision,andmotiondevices.SincePXIdevicesusePXIbackplanesignalsfortimingandsynchronization,nocablesarerequired.CablesInmostapplications,youcanusethefollowingcables:•SHC68-68-EPM1—High-performancecabledesignedspecificallyforMSeriesdevices.Ithasindividualbundlesseparatinganaloganddigitalsignals.Eachdifferentialanaloginputchannelisroutedonanindividuallyshieldedtwistedpairofwires.Analogoutputsarealsoindividuallyshielded•SHC68-68—Lower-costshieldedcablewith34twistedpairsofwire•RC68-68—Highly-flexibleunshieldedribboncableCustomCablingandConnectivityTheCA-1000isaconfigurableenclosurethatgivesuser-definedconnectivityandflexibilitythroughcustomizedpanelettes.Visitni.comformoreinformationabouttheCA-1000.USB-6251ScrewTerminalPinoutFigureA-29showsthepinoutoftheUSB-6251ScrewTerminal.Foradetaileddescriptionofeachsignal,refertotheI/OConnectorSignalDescriptionssectionofChapter3,ConnectorandLEDInformation.NoteFormoreinformationaboutdefaultNI-DAQmxcounterinputs,refertoConnectingCounterSignalsintheNI-DAQmxHelportheLabVIEWHelpinversion8.0orlater.USB-6251ScrewTerminalSpecificationsRefertotheNI625xSpecificationsformoredetailedinformationabouttheUSB-6251ScrewTerminaldevice.USB-6251ScrewTerminalLEDPatternsRefertotheLEDPatternssectionofChapter3,ConnectorandLEDInformation,forinformationabouttheUSB-6251ScrewTerminalLEDs.USB-6251ScrewTer