RS485 快速指南

trial_57369 13 0 pdf 2022-08-09 15:08:42

RS485conveysdatadifferentiallyoveraterminatedtwistedpair,permittingupto10Mbpsdatarates.Thestandardspecifieselectricalcharacteristicsofadriverandreceiver,anddoesnotspecifyanydataprotocolorconnectors.RS485ispopularforinexpensivelocalnetworks,multidropcommunicationlinksandlonghauldatatransferoverdistancesofupto4,000feet.TheuseofabalancedlinemeansRS485hasexcellentnoiserejectionandisidealforindustrialandcommercialapplications.You’llfindRS485inapplicationsasdiverseasmonitoringoilwellsandlinkingPOSterminals,toalarmsystems,motioncontrolandHVACcontrols.Extendedcapabilitytransceiversofferdataratesupto100Mbpsandupto256nodes,aswellas2500VRMSisolationandfaultprotectionupto±60V.

RS485QuickGuideTIA/EIA-485-AStandardRS485conveysdatadifferentiallyoveraterminatedtwistedpair,permittingupto10Mbpsdatarates.Thestandardspecifieselectricalcharacteristicsofadriverandreceiver,anddoesnotspecifyanydataprotocolorconnectors.RS485ispopularforinexpensivelocalnetworks,multidropcommunicationlinksandlonghauldatatransferoverdistancesofupto4,000feet.TheuseofabalancedlinemeansRS485hasexcellentnoiserejectionandisidealforindustrialandcommercialapplications.You’llfindRS485inapplicationsasdiverseasmonitoringoilwellsandlinkingPOSterminals,toalarmsystems,motioncontrolandHVACcontrols.Extendedcapabilitytrans