USB Fast Role Swap User manual

Version1.0
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FastRoleSwap(FRS)SwitchUserGuide
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Version1.0
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Contents
Introduction..................................................................................................................................................3
Safety............................................................................................................................................................3
Equipment.....................................................................................................................................................3
Setup.............................................................................................................................................................4
Use:...............................................................................................................................................................6
SupportingInformation:...............................................................................................................................7
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Version1.0
Introduction
TheUSBPowerDeliveryFastRoleSwapswitchesprovideatooltosimulatealossofexternalpower.
Theyarecurrentlyavailabletouseforcorrelation,validationanddebuggingofUSBFastRoleSwap
architecture.
Safety
TheFRSswitchwasdevelopedforusewithUSB‐IFapprovedtestequipmenttospecificallyperformthe
testsdefineinChapter8oftheUSBPowerDeliveryComplianceTestSpecification.AnyuseoftheFRS
switchoutsideofthisscopeisstronglydiscouraged.
WhenconnectingordisconnectingtheDCsidesplicedpowerlinetotheFRSSwitchviathebananaplug
connectorsusers*MUST*disconnecttheAC/DCpoweradapterfromACpowerandensureallresidual
powerintheAC/DCadapterisdischarged.Notdoingsocancauseseriousinjuryordeaththrough
electrocution.
TheFRSswitchshouldnotbeleftonorconnectedforanyextendedduration.Itisstrongly
recommendedthattheFRSSwitchbeconnectedonlyforthepurposesofrunningtheFRSCompliance
tests,thendisconnected.
AtnopointshouldauserdisassembletheFRSSwitch.
Equipment
BelowisatableofequipmentneededtoustheFRSswitch:
AdditionalEquipment: UsedFor: ProvidedBy:
AC/DCPowerAdapterwithDC
sidepowerlinespliced.
Terminatespliceoneachend
withbananaplugconnectors
Connectbothendsofthe
splicedpowerlinetobanana
receptaclesonFRSswitch
followingorientationlabels
Usermustprovidetheirown
AC/DCPowerAdapter
Controlcableterminatedin
2.1mmBarrelJackPlug
Connecttothecontrol
receptacleontheFRSswitchto
ApprovedUSB‐IFCompliance
Testequipment
BarrelJackPlugprovidedby
USB‐IFwithpurchaseofFRS
switch.Usermustcreateown
controlcable
ApprovedUSB‐IFUSBPD
ComplianceTestEquipment
RunningFRStestsasdefinedin
Chapter8oftheUSBPower
DeliveryComplianceTest
Specification
ListofapproveUSBPDtest
equipmentcanbefoundat
https://www.usb.org/usbc
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Version1.0
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Setup
BeforecontinuingwithsetuppleasebesuretoreadtheSafetysectionofthisdocument.
BelowistheconnectiondiagramfortheAC/DCadapter.
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TheFRSSwitchesshallbeusedwithacustomizedAC/DCadapter.UsersoftheFRSSwitchmustprovide
theirownAC/DCadapterinwhichtheDCsidepowerlineissplicedandterminatedinabananaplug
connectoroneachsideofthespliceasdepictedabove.Thegroundlineshouldnotbespliced.
TheFRSSwitcheshave3exposedreceptacles.
 TwobananareceptacleconnectorstointerfacewiththeDCoutputofanAC/DCpoweradapter.
 One2.1mmbarreljackreceptacleconnectorusedforthecontrolsignal.
Thetwobananareceptacleconnectorshavecorrespondinglabelsabovethemtoindicatewhichsideof
thesplicetoconnect.Labelswillread“ACAdapter”toindicatethatthebananaplugconnectoronthe
AC/DCadaptersideofthesplicedpowerlinebeconnectedhere.Whiletheotherlabelwillread“to
UUT”toindicatethatthebananaplugconnectorontheDCbarreljacksideofthesplicedpowerlinebe
connectedhere.ReversingtheorientationcandamagetheFRSSwitch.SeeexamplepicturesofanFRS
Switchbelowwithlabelsabovethebananareceptacleconnectors.
The2.1mmBarrelJackReceptacleislabeled“Control”andisusedwithaDCsignaltoenableanddisable
theswitch.AcorrespondingbarreljackplugwillbeshippedwitheachFRSSwitch.TheFRSSwitchdoes
notcomewithacontrolcable.Theusermustcreatetheirowncontrolcableusingthebarreljackplug
includedintheshipment.SeeexamplepictureofanFRSSwitchbelowwithaControllabelabovethe
2.1mmbarreljackreceptacle.
ToUUT
Positive
Negative
AC/DCAdapter UUTExternalPower
Barrel
FromDCSideofAC/DC
ada
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ter

Version1.0
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InsummaryonceyouhavethenecessaryequipmentusethefollowingstepstosetuptheFRSSwitch.
1. EnsurethatACPowerisdisconnectedfromtheAC/DCPoweradapter.
2. Ensurethatallpowerisdischargedfromtheadapter.
3. ConnectedtheAC/DCpoweradaptertotheFRSswitchbyconnectingthesplicedpowerlineon
theDCsideoftheAC/DCpoweradaptertothebananareceptacleconnectorsontheswitch,
followingtheorientationlabels.
4. Connect“Control”cabletobarreljackreceptaclelabelled“Control”
5. Connectotherendof“Control”cabletoUSB‐IFApprovedUSBPDTestEquipment
6. FollowUSB‐IFApprovedUSBPDTestEquipmentsetupprocedures
7. ConnectACPowertosplicedAC/DCPoweradapter
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Version1.0
Use:
Theswitchessupportupto20voltsatupto10Aofcurrentdesignedtoworkatfullfunctionalityfrom
between0to40degreesCelsius.
Belowistheusetable:
State ControlVoltage BananaReceptacles
ON 3V‐10V Connected
OFF Allothervoltages NotConnected
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BelowdrawingdepictstheFRSSwitchintheONstatewhenControlvoltageisbetween3Vand10V.Itis
suggestedthata6.5Vcontrolvoltagebeused.
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20V5ADCoutput 20V5ADCoutput
Connected:Short
Control
3V– 10V
(
ON
)
Positive
AC/DCAdapter UUTExternalPower
Barrel

Version1.0
BelowdrawingdepictstheFRSSwitchintheOFFstatewhentheControlVoltageis0V.Itissuggested
that0Vbeused.
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SupportingInformation:
TheDataSheetoftheCrydomCMX60D20aswellastheDataSheetforthe2.1mmbarreljackplugand
receptacleareincludedinthezipfilewiththisuserguide.
NoPower
20V5ADCoutput
Disconnected:
Open
Control
0V
(
OFF
)
Positive
AC/DCAdapter UUTExternalPower
Barrel