ANSI_VITA 46.0-2007_American National Standard for

ANSI/VITA46.0-2007AmericanNationalStandardforVPXBaselineStandardSecretariatVMEbusInternationalTradeAssociationApprovedOctober2007AmericanNationalStandardsInstitute,Inc.VMEbusInternationalTradeAssociationPOBox19658,FountainHills,AZ85269PH:480-837-7486,FAX:ContactVITAOfficeE-mail:[e-mail],URL:–figures:B-1,B-2,B-3,B-4April2008R1.2Page25,Recommendation3-6,Changetextfrom“ANSI-VITA40-2004”to“ANSI/VITA40,StatusIndicatorStandard”ANSI/VITA46.0-2007AmericanNationalStandardforVPXBaselineStandardSecretariatVMEbusInternationalTradeAssociationApprovedOctober2007AmericanNationalStandardsInstitute,Inc.AbstractThisstandarddescribesVITA46.0VPXBaselineStandard,anevolutionarystepforwardfortheprovisionofhigh-speedinterconnectsinharshenvironmentapplications.AmericanNationalStandardApprovalofanAmericanNationalStandardrequiresverificationbyANSIthattherequirementsfordueprocess,consensus,andothercriteriaforapprovalhavebeenmetbythestandardsdeveloper.Consensusisestablishedwhen,inthejudgmentoftheANSIBoardofStandardsReview,substantialagreementhasbeenreachedbydirectlyandmateriallyaffectedinterests.Substantialagreementmeansmuchmorethanasimplemajority,butnotnecessarilyunanimity.Consensusrequiresthatallviewsandobjectionsbeconsidered,andthataconcertedeffortbemadetowardtheirresolution.TheuseofAmericanNationalStandardsiscompletelyvoluntary;theirexistencedoesnotinanyrespectprecludeanyone,whetherhehasapprovedthestandardsornot,frommanufacturing,marketing,purchasing,orusingproducts,processes,orproceduresnotconformingtothestandards.TheAmericanNationalStandardsInstitutedoesnotdevelopstandardsandwillinnocircumstancesgiveaninterpretationofanyAmericanNationalStandard.Moreover,nopersonshallhavetherightorauthoritytoissueaninterpretationofanAmericanNationalStandardinthenameoftheAmericanNationalStandardInstitute.Requestsforinterpretationsshouldbeaddressedtothesecretariatorsponsorwhosenameappearsonthetitlepageofthisstandard.CAUTIONNOTICE:ThisAmericanNationalStandardmayberevisedorwithdrawnatanytime.TheproceduresoftheAmericanNationalStandardsInstituterequirethatactionbetakenperiodicallytoreaffirm,revise,orwithdrawthisstandard.PurchasesofAmericanNationalStandardsmayreceivecurrentinformationonallstandardbycallingorwritingtheAmericanNationalStandardsInstitute.NOTE–Theuser’sattentioniscalledtothepossibilitythatcompliancewiththisstandardmayrequireuseofaninventioncoveredbypatentrights.Bypublicationofthisstandard,nopositionistakenwithrespecttothevalidityofthisclaimorofanypatentrightsinconnectiontherewith.Thepatentholderhas,however,filedastatementofwillingnesstograntalicenseundertheserightsonreasonableandnondiscriminatorytermsandconditionstoapplicantsdesiringtoobtainsuchalicense.Detailsmaybeobtainedfromthestandardsdeveloper.PublishedbyVMEbusInternationalTradeAssociationPOBox19658,FountainHills,AZ85269Copyright©2007byVMEbusInternationalTradeAssociationAllrightsreserved.Nopartofthispublicationmaybereproducedinanyform,inanelectronicretrievalsystemorotherwise,withoutpriorwrittenpermissionofthepublisher.PrintedintheUnitedStatesofAmerica-R1.2,ISBN1-885731-44-2ANSI/VITA46.0,VPXBaselineStandardPage2TableofContents1INTRODUCTION.....................................................................................................121.1Objectives......................................................................................................................................................121.2VITA46Overview.......................................................................................................................................121.3Terminology..................................................................................................................................................141.3.1SpecificationKeyWords..........................................................................................................................141.3.2VITA46Definitions.................................................................................................................................151.4References.....................................................................................................................................................162VITA46COMPLIANCE..........................................................................................183SYSTEM.................................................................................................................193.1SafetyGround..............................................................................................................................................193.2PowerSupply................................................................................................................................................203.2.1Capacity..............................................................................................................