SAE AS42702-2023 Verification Methods for MIL-STD-1760E Mission Stores MIL-STD-1760E 任务仓库的验证方法（2-2）.pdf

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SAEINTERNATIONALAS42702™Paae92of181

METHOD:HDC202

PARAMETER:MissionStore270VDCPowerInterfaceImpedance/Isolation

MIL-STD-1760EPARAGRAPH:5.2.10,5.2.10.3,and5.2.10.7(pa同）

PURPOSE:Thepurposeofthismethodistodeterminetheimpedanceofthemissionstore’spowerinterfacesandthe

complianceofthisparameterwiththerequirementsofMIL-STD-1760巳

PARAMETERTYPE:(X)ELECTRICAL()PROTOCOL()PHYSICAL

VERIFICATIONTECHNIQUE:(X)TEST()ANALYSIS()INSPECTION

VERIFICATIONCRITERIA:Themissionstoreisconsideredtosatisfytherequirementifthemeasuredresistanceforeach

contactmeetsthecriterialistedintheverificationmethod.

APPARATUS:OhmmetercapableofmeasuringDCresistancesgreaterthan100kO.

VERIFICATIONMETHOD:

a.For270VDCinterfacesthatarenotusedbythemissionstorebuthavecontactsinstalledintheprimaryorauxiliary

connectors:

1.Connecttheohmmeterbetweencontacts“R”and“N”oftheprimaryinterfaceconnector.Verifythatthemeasured

DCresistanceexceeds100kO.

2.Iftheauxiliaryinterfaceconnectorisinstalledonthemissionstore,connecttheohmmeterbetweencontacts“P

and“H”oftheauxiliaryinterfaceconnector.VerifythatthemeasuredDC『esistanceexceeds100kO.

b.For270VDCinterfacesthatareusedbythemissionstore

1.Ifthemissionstoreutilizestheauxiliaryinterfaceconnector,connecttheohmmeterbetweentheprimaryinterface

connectorcontact“霄’andtheauxiliaryconnectorcontact宇”andverifythatthemeasuredDCresistanceexceeds

100kO.RepeatthetestwiththemeterconnectionsreversedandverifythatthemeasuredDCresistanceexceeds

100kO.

2.Ifthemissionstoreut

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