Transcription of 422 and 485 Overview and System Configurations - …
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ApplicationReportSLLA070D June2002 RevisedMay2010RS-422andRS-485 StandardsOverviewandSystemConfigurations MannySoltero,JingZhang, IndustrialInterfaceUpdatedbyKevinZhang,C larkKinnaird, ,commonlyknownasRS-422andRS-485,respecti vely, , severalapplicationsarepresented, June2002 RevisedMay2010RS-422andRS-485 StandardsOverviewandSystemConfigurations Copyright 2002 2010, June2002 RevisedMay2010 Copyright 2002 2010, ,astheyareknowntoday, ,respectively, (TIA) , theofficialANSI documents,onlythemostprevalentarediscuss edin tonotduplicatetheofficialdocuments, animportantaspectofdifferentialdatatrans missionin minimizinglinereflectionsduetotransmissi on-lineeffects, , ,theRS-422standard'stitleisElectricalCha racteristicsofBalancedVoltageDigitalInte rfaceCircuits, andis publishedbytheANSIT elecommunicationIndustryAssociation/Elec tronicIndustriesAssociation(TIA/EIA).
www.ti.com Introduction 1 Introduction The RS-422and RS-485standards, as they are known today, are balanced data-transmissionschemes that offer robust solutions for transmitting data over long distances and noisy environments.
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