Specifications

SFF8639TestAdapterUserManual(Preliminary)
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©2014WilderTechnologies,LLC
DocumentNo.910‐0034‐000Rev.A(Preliminary)
3. The8639‐TPASMAconnectorshaveflatsthatacceptanopen‐end1/4‐inchor
6.5mmwrench.Whenattachinginstrumentcablestothe8639‐TPA,itisrecom‐
mendedthatthe8639‐TPASMAconnectorsbemechanicallyheldandthetest
leadsbetightenedtotheequipmentmanufacturer’storquerecommendations,
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normally5in‐lbs,usinga5/16‐inchopen‐endwrench.
Ifthetestset‐uprequiresrepositioning,firstloosenordisconnecttheSMAconnectionsto
avoidtwisting,bending,ortension.
NOTE:Adropinsignalamplitudebyhalfor6dbduringthetestingof
achannelmayindicatethatacablehasbeenmechanicallypulled
freeofcoaxialcableconnectionsinternaltotheassembly.Thiscould
bedeterminedbycheckingifthecablehasanylateralplayrelative
totheTPA.ThiswouldonlyoccurwhentheTPAhasexceededthe
pullforceasspecified
withinthemechanicalspecification.Ifthe
cablecannotbere‐seated,thetestadapterwillneedtobesentback
tothefactoryforservice.
 CAUTION6:IndependentlySupportInstrumentCablesorAccessories
Excessiveweightfrominstrumentcablesand/oraccessoriesconnectedtothe8639‐TPAcan
causedamageoraffectthetestadapterperformance.Besuretoprovideappropriatemeans
tosupportandstabilizealltestset‐upcomponents.
NOTE:The8639‐TPA‐R(Device
TPA)issuppliedwithDeviceSupport
Adaptermaterialsthatallowtheusertoproperlysupportand
stabilizea2.5‐inchor3.5‐inchform‐factordevicewhileundertest.
Figure16,laterwithinthisdocument,illustratestheinstallationand
atypicalapplicationoftheDeviceSupportAdaptermaterials.
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