National Instruments PCI-8430 User Manual

PCIKits
ThePCIserialhardwaregivesyouavarietyofsolutionsforserial
communication.TheRS-232boards(PCI-8430,PCI-8432,andPCI-232)
workwiththeRS-232protocol.TheRS-485boards(PCI-8431,PCI-8433,
andPCI-485)workwiththeRS-422andRS-485protocols.Youcanuse
theRS-232portsforserialcommunicationuptodistancesof50ft.You
canconnecttheRS-485portstoupto31devicesusingserialcable
lengthsupto4,000ft.
Additionally,thePCIserialboardsareavailableintwo-port,four-port,
eight-port,and16-portversions.Thetwo-portversionsuseDB-9
connectors.Thefour-portversionsuse10-positionmodularjacksto
provideallfourconnectionsonasinglebackpanel.Optionalcable
accessoriesconvertthe10-positionmodularjackstoeitherDB-9orDB-
25connectorswithstandardpinouts.Theeight-portversionsuseadapter
cablestoconvertthe68-pinconnectorontheboardtoeightDB-9
connectors.ThePCI-8430/16usestwoadaptercablestoconvertthetwo
68-pinconnectorsontheboardto16DB-9connectors.ThePCI-232/16
usesabreakoutboxtoconvertthe100-pinconnectorontheboardto16
DB-9connectors.Throughoutthishelpfile,PCIserialboardsreferstoall
versionsofthePCIserialboards.
TheisolatedPCIboardsaredesignedforapplicationsinharsh
environments.Isolatedportsprovidereliablecommunicationinsituations
involvinggroundloopsfromdifferentgroundlevelsorhighcommon
modevoltageinducedonthelinesinnoisyenvironments.Nonisolated
portsmaynotprovidereliablecommunicationinthosesituations.The
isolationbetweeneachcommunicationportandthehostPCensuresthe
safeoperationofthePCandthedevicesconnectedtootherportsonthe
sameboard,incaseofaccidentalhighvoltagesorlinesurgeson
communicationlines.
TheRS-232portsareDTE.IntheRS-232specification,DataTerminal
Equipment(DTE)andDataCommunicationsEquipment(DCE)referto
thetypesofequipmentoneitherendofaserialconnection.Ingeneral,
DTEandDCErefertocomputerequipmentandmodems,respectively.
FormoreinformationaboutcablingaRS-232porttootherdevices,refer
toRS-232DTEvs.DCE.
TheRS-485portssupportfourhardwaretransceivercontrolmodesfor

National Instruments PCI-8430 Specifications

General

Brand	National Instruments
Model	PCI-8430
Category	Computer Hardware
Language	English