HP 35601A Service manual

OPERATING
IC E
1%s& tfesa
AM U A L
HP35601A
SPECTRUMANALYZER
INTERFACE
m
HEWLETT
PACKARD

CERTIFICATION
Hewlett-Packard Company certifies that this product met its published specifications at the time of shipment
from the factory. Hewlett-Packardfurther certifies that its calibrationmeasurements are traceableto the United
States National Bureau of Standards, to the extent allowed by the Bureau's calibration facility, and to the
calibration facilities of other International Standards Organization members.
WARRANTY
ThisHewlett-Packardinstrumentproductiswarrantedagainstdefectsinmaterialandworkmanshipfora period
ofoneyearfromdateofshipment.Duringthewarrantyperiod,Hewlett-PackardCompanywillatitsoption,
eitherrepairorreplaceproductswhichprovetobedefective.
Forwarrantyserviceorrepair,thisproductmustbereturnedtoa servicefacilitydesignatedbyHP.Buyershall
prepayshippingchargestoHPandHPshallpayshippingchargestoreturntheproducttoBuyer.However,
Buyershallpayallshippingcharges,duties,andtaxesforproductsreturnedtoHPfrom anothercountry.
HPwarrantsthatitssoftwareandfirmwaredesignatedbyHPforusewithaninstrumentwillexecuteits
programminginstructionswhenproperlyinstalledonthatinstrument.HPdoesnotwarrantthattheoperation
oftheinstrument,orsoftware,orfirmwarewillbeuninterruptedorerrorfree.
LIMITATIONOFWARRANTY
Theforegoingwarrantyshallnotapplytodefectsresultingfrom improperorinadequatemaintenancebyBuyer,
Buyer-suppliedsoftwareorinterfacing,unauthorizedmodificationormisuse,operationoutsideofthe
environmentalspecificationsfortheproduct,orimpropersitepreparationormaintenance.
NOOTHERWARRANTYISEXPRESSEDORIMPLIED.HPSPECIFICALLYDISCLAIMSTHEIMPLIED
WARRANTIESOFMERCHANTABILITYANDFITNESSFORA PARTICULARPURPOSE.
EXCLUSIVEREMEDIES
THEREMEDIESPROVIDEDHEREINAREBUYERS'SSOLEANDEXCLUSIVEREMEDIES.HPSHALL
NOTBELIABLEFORANYDIRECT,INDIRECT,SPECIAL,INCIDENTAL,ORCONSEQUENTIAL
DAMAGES,WHETHERBASEDONCONTRACT,TORT,ORANYOTHERLEGALTHEORY.
ASSISTANCE
Product maintenance agreements and other customer assistance agreements are available for Hewlett-Packard
products.
For any assistance, contact your nearest Hewlett-Packard Sales and Service Office. Addresses are provided at
the back of this manual. -

HP 35601A
SPECTRUMANALYZER
INTERFACE
©HEWLETT-PACKARDCOMPANY1981
EAST24001MISSIONAVENUE,TAFC-34,SPOKANE,WASHINGTON, U.S.A., 99220
OperatingandServiceManualPartNo.35601-90001
MicroficheOperatingandServiceManualPartNo.34601-90051 Printedin
U.S.A.: SEPTEMBER1982
mHEWLETT
PACKARD

Model35601A TableofContents
TABLEOFCONTENTS
Sectionpage
I.GENERALINFORMATION1-1
1-1.Introduction1-1
1-2.Description1-2
1-3.Specifications1-2
1 -4. SafetyConsiderations1-2
1-5.RecommendedTestEquipment1-2
Section page
II. INSTALLATION2-1
2-1. Introduction2-1
2-2. PowerRequirements2-1
2-3. LineVoltageandFrequency2-1
2-4. GroundingRequirements2-1
2-5.InstallationintoSystem2-2
2-6.LineVoltageandFuseSelection2-2
2-7.HP-IBAddressSelection2-3
2-8.Mounting2-4
2-9.PowerCableConnection2-5
2-10.SignalConnections2-6
2-11. OperatingandStorage
Environment2-7
2-12. OperatingEnvironment2-7
2-13. StorageandShipping
Environment2-8
2-14.RepackagingforShipment2-8
2-15.-hp-Packaging2-8
2-16.OtherPackaging.2-8
Section page
III. OPERATION3.1
3-1. Introduction3-1
3-2. FrontPanel3-1
3-3. RearPanel.3-1
Section page
IV.REPLACEABLEPARTS4-1
4-1. Introduction4-1
4-2. OrderingInformation4-1
4-3. PartsNotListed4-2
4-4. DirectMailOrderSystem4-2
Section page
V.BACKDATING5-1/5-2
5-1. Introduction5-1/5-2
5-2. A50-20dBAmplifier,0-20dB
Attenuator,Digital-To-Analog
Convertor,andWein-Bridge
OscillatorCircuits..5-1
5-3. A310MHzVCXO,10MHzREF
Input,PhaseDetector,MixerDriver,
andLowPassFilterCircuits5-2
5-4.A5SummingAmplifierBufferand
0-20dBAmplifierCircuit5-2
Sectionp
VI. SERVICEm li
6-1. Introduction6-1
6-2.SafetyConsiderations6-1
6-3. RecommendedTestEquipment.6-3
6-4.AutomaticTestingand
Adjustments.6-4
6-5.GeneralInstructions6-4
6-6.ConnectTheInstruments6-4
6-7.StartingTheProgram6-4
6-8.Selectinga Menu.6-5
6-10.BypassPathTest. 6-9
6-11.2MHzLowpassFilterTest6-10
6-11. xlOOAmplifierTest6-11/6-12
6-12.PadsinTrackingGenerator
InputPathTest.6-13/6-14
6^13.AdaptiveCouplerTest6-15/6-16
6-14.Digital-to-AnalogConverter
Test6-17/6-18
6-15.OutputAttenuatorTest.6-19/6-20
6-16.WeinBridgeOscillatorTest....6-21/6-22
6-17.NoiseInputtoSumming
JunctionTest.6-23/6-24
6-18.TrackingGeneratorInputto
SummingJunctionTest6-25/6-26
6-19.OutputPathto3582/3585.6-27
6-20.ProgrammableGainStepsTest6-28
6-21.1.5GHzMixerDCOffsetTest6-31
6-22.350kHz137OkHzSynthesizerTest..6-32
6-23.VoltageControlledCrystal
OscillatorTest6-34
6-24.35OkHzBandpassFilterTest.6-31
6-25.X20andX5AmplifierTest6-39
6-26.SwitchableLowpassFiltersTest6-40
6-27.ChannelA DCOffsetAdjustment6-43
6-28.HP-IBTestwithDigital
SignatureAnalysis6^45
6-29.Controllingthe-hp-35601AUsing
Subprogram''Switch''6-46
6-30.Initializing"Switch".6-46
6-31. SpecialFunctionKey.6-46
6-32.Enteringa CommandString6-48
6-33.IntroductiontotheA3Board6-49
6-34.TheA3BoardintheNarrow
BandAnalysisMode6-49
6-35.TheA3BoardintheAM/PM
AnalysisMode6-49
6-36.DetailedDescriptionofthe
A3Board.6-49
6-37.InputSection6-49
6-38.MixerSection6-49
6-39.50kHzand0.16HzFilters..........6-50
6-40.LoopShappingControland
LockDetector.6-50
iii

TableofContents Model35601A
TABLEOFCONTENTS(Cont'd)
SectionPage
10MHzVoltageControlled
CrystalOscillator6-50
AdaptiveCoupler6-50
350kHz/370kHzSynthesizer6-50
X5Amplifiers6-51
LowpassFilters6-51
Introduction6-59
DetailedDescriptionoftheA4
Board6-59
InputMixers6-59
One-PoleLowpassFilter6-59
60MHzLowpassFilter6-59
OverloadDetector6-60
2MHzLowpassFilter6-60
40dBAmplifier6-60
TrackingGeneratorInputPads6-61
.Armstrong ModulatorRelated
Paths6-61
Lag/Lead6-61
PowerSupplies6-61
RelayDrivers6-61
MakingPhaseNoiseMeasurements
withVoltageControl/the12dB
Amplifier6-62
DetailedDiscussionoftheA5
Board6-65
0to28dBAmplifierin4dBSteps6-65
6to20dBAmplifierin2dBSteps6-65
6-41.
6-42.
6-43,
6-44.
6-45.
6-46.
6-47.
6-48.
6-49.
6-50.
6-51.
6-52.
6-53.
6-54.
6-55.
6-56.
6-57.
6-58.
6-59.
6-60.
6-61.
6-62.
SectionPage
6-64.FrontPanelMeter6-65
6-63.5 VoltDetectorandIntegrator6-65
6-65.SummingAmplifier6-66
6-66.WeinBridgeOscillator6-66
6-67.OscillationDetector6-66
6-68.Lag/LeadNetwork6-66
6-69.0 to20dBAttenuator/Output6-66
6-70.FETSwitchDrivers6-67/6-68
6-71. OverloadFlip-Flop6-67/6-68
6-72.Out-of-LockFlip-Flop6-67/6-68
6-73.DigitaltoAnalogConverter...6-67/6-68
6-74.Introduction6-71
6-75.DetailedDescriptionoftheAl
Board6-71
6-76.PowerSupply.6-71
6-77.Start-upoftheAlBoard6-71
6-78.LocalOperation6-71
6-79.RemoteOperation6-71
6-80.Handshake6-72
6-81. AddressingtheAlBoard6-73
6-82.TroubleshootingtheDigitalCircuitry
oftheAlBoard6-75
6-83.DescriptionoftheA6Board6-81/6-82
6-84.DescriptionoftheA7Board6-85/6-86
AppendixPage
A.Operatingthe-hp-35601ALocallyA-l
B. IntegratedCircuitDiagramsandTruth
TablesB-l
iv

Model35601A TableofContents
LISTOFILLUSTRATION
FigurePage
1-1.The-hp-35601ASpectrumAnalyzer
InterfaceInstalledinthe-hp-3047A......1-1
2-1. LineVoltageRanges2-2
2-2. SwitchPositionsForLineVoltage
Ranges2-2
2-3. AddressSelection2-3
2-4. MountingHardward. . .2-4
2-5.PowerCables2-5
2-6.HP-IBConnector2-7
3-1. -hp-35601AFrontPanel. 3-2
3-2. -hp-35601ARearPanel3-3/3-4
5-1. A3SchematicandComponent
Locator5-3/5-4
5-2. A3SchematicandComponent
Locator5-5/5-6
6-1. BypassPathTest6-7/6-8
6-2.2MHzLowpassFilterTest6-9/6-10
6-3. xlOOAmplifierTest.6-11/6-12
6-4.PadsinTrackingGeneratorInput
PadsTest.6-13/6-14
6-5.AdaptiveCouplerTest6-15/6-16
6-6.Digital-to-AnalogConverterTest6-17/6-18
6-7.OutputAttenuatorTest6-19/6-20
6-8.WeinBridgeOscillatorTest6-21/6-22
6-9.NoiseInputtoSummingJunction
Test.6-23/6-24
6-10.TrackingGeneratorInputtoSumming
JunctionTest6-25/6-26
6-11. Channel B andIMSOutputs. 6-27/6-28
6-12.ProgrammableGainStepsTest...6-29/6-30
Figure page
6-13.1.5GHzMixerDCOffsetTest6-31/6-32
6-14.350kHz/370kHzSynthesizerTest6-33/6-34
6-15.VoltageControlledCrystalOscillator
Test.6-35/6-36
6-16.350kHzBandpassFilter6-37/6-38
6-17.X20andX5AmplifiersTest.6-39/6-40
6-18.SwitchableLowpassFiltersTest6-41
6-19.HP-IBTestwithDigitalSignature
Analysis6-43/6-44
6-20.A3SchematicandComponent
Locator6-45
6-21. A3SchematicandComponent
Locator6-53/6-54
6-22.A3SchematicandComponent
Locator6-55/6-56
6-23.A3PowerSupplyFiltersand
ControlInput.6-57/6-58
6-24.A4SchematicandComponent
Locator6-63/6-64
6-25.A5SchematicandComponent
Locator......6-69/6-70
6-28.AlSchematicandComponentLocator
withDigitalSignatureAnalysis6-77/6-78
6-29.PowerSupply6-79/6-80
6-30.A6SchematicandComponent
Locator6-83/6-84
6-31. A7SchematicandComponent
Locator6-87/6-88
A-1. 35601ABlockDiagramA-3/A-4
LISTOFTABLES
TablePage
1-1.RecommendedTestEquipment........ 1-3/1-4
4-1. StandardAbbreviations4-1
4-2. ManufacturersCodeList4-2
4-3. ReplaceableParts.4-3
6-1. RecommendedTestEquipment. .6-3
6-2,HighFrequencyMenuof"601TST"
Programo.6-5
TablePage
6-3. LowFrequencyMenuof"601TST"
Program6-5
6-4."SWITCH"Commands6-47/6-48
A-1. LatchesandLatchBitsforControlling
the-hp-35601ALocallyA-2
v/vi

m
HEWLETT
PACKARD
SAFETYSUMMARY
n^T?T"?^
mTm* mM,tbe obMn"»d
**■ »«P«««»of operation, service,andrepairofthis
ItatSvT, * .
B?' ma"ufactora'Md
"*»«»•«■ ««•oftheinstrumentHowlett-PeckardCompanyassumesno
l«ab,l.ty for thecustomer'sfariur. to complywiththeserequirements.This i,a SafetyClass 1 instrument
GROUNDTHEINSTRUMENT
t^arm,neHSThCk
ha.2ard'
**
lnstrumentchasslsandcabinetmustbeconnectedtoanelec-
tricalgroundTheinstrumentisequippedwitha three-conductoracpowercable.Thepower
thte Zf! < " ^
P,U"ed int°an aPPf0Ved three-contactelectricaloutlet
or used S!
rt^'ZT
toA^°;con^
adapterwith the groundingwire(green)firmlyconnected toan
electricalground(safetyground) atthe poweroutlet. The powerjack and matingplug ofthe
powercablemeetInternationalElectrotechnicalCommission (IEC) safetystandards
00NOTOPERATE IN ANEXPLOSIVEATMOSPHERE
elec^^
ln thePr6SenCe°ff'ammab,egases or fumes-
^""ion ofany
electricalinstrument in such an environmentconstitutes a definitesafetyhazard.
KEEPAWAYFROMLIVECIRCUITS
Operatingpersonnelmust not removeinstrumentcovers.Componentreplacementandinternal
adjustmentsmust be made by qualifiedmaintenancepersonnel. Donot replacecomponents
^3
COnneC*edTUnder cert™conditions,dangerousvoltagesmayexisteTen
wl
SZZZSfiZZved-To
avo,dinjuries'a,waysdisconnect power and discha^
«*«*■
DONOTSERVICEORADJUSTALONE
£srssn T*'zt°'adius,ment
uniessano,herperson'capawe
<" —■*■•«
DONOTSURSTITUTEPARTSORMODIFYINSTRUMENT
Because ofthe danger of introducingadditionalhazards, donot installsubstituteparts or per-
form any unauthorizedmodification tothe instrument.Return the instrument to a Hewlett-
PackardSalesandServiceOffice for service and repair to ensurethatsafetyfeatuL a^emat-
DANGEROUSPROCEDUREWARNINGS
Warnings,such asthe examplebelow,precedepotentiallydangerousproceduresthrouahout
thismanual.Instructionscontained inthe warningsmust be followed°CedUreS
tnrou9hout
WARNING |
Dangerousvoltages,capable of causingdeath,arepresentinthisinstrumentUseex-
tremecautionwhenhandling,testing,andadjusting.
A

SAFETYSYMBOLS
GeneralDefinitionsofSafetySymbolsUsedOnEquipmentorInManuals.
A
h
-±r OR (-i
rb OR
Instructionmanualsymbol:theproductwillbemarkedwiththis
symbolwhenitisnecessaryfortheusertorefertotheinstruction
manualinordertoprotectagainstdamagetotheinstrument.
Indicatesdangerousvoltage(terminalsfedfromtheinteriorby
voltageexceeding1000voltsmustbesomarked).
Protectiveconductorterminal.Forprotectionagainstelectrical
shockincaseofa fault.Usedwithfieldwiringterminalstoin-
dicatetheterminalwhichmustbeconnectedtogroundbefore
operatingequipment.
Low-noiseornoiseless,cleanground(earth)terminal.Usedfora
signalcommon,aswellasprovidingprotectionagainstelectrical
shockincaseof a fault.A terminalmarkedwiththissymbolmust
beconnectedtogroundinthemannerdescribedintheinstallation
(operating)manual,andbeforeoperatingtheequipment.
Frameorchassisterminal.A connectiontotheframe(chassis)of
^1theequipmentwhichnormallyincludesallexposedmetalstruc-
tures.
Alternatingcurrent(powerline).
Directcurrent(powerline).
Alternatingordirectcurrent(powerline).
:k TheWARNINGsigndenotesa hazard.Itcallsattentiontoa pro-
WARNINGI
cedure,practice,conditionorthelike,which,ifnotcorrectlyper-
■"■^™"™™ formedoradheredto,couldresultininjuryordeathtopersonnel.
CAUTION
NOTE:
TheCAUTIONsigndenotesa hazard.Itcallsattentiontoan
operatingprocedure,practice,conditionorthelike,which,ifnot
correctlyperformedoradheredto,couldresultindamagetoor
destructionofpartoralloftheproduct.
TheNOTEsigndenotesimportantinformation.Itcallsattention
toprocedure,practice,conditionorthelike,whichisessentialto
highlight.

Model35601A GeneralInformation
SECTION I
GENERALINFORMATION
1.1INTRODUCTION
ThisOperatingandServiceManualcontainsinformationfortheinstallation,operation,
testing,adjustments,andserviceoftheHewlettPackardModel35601ASpectrumAnalyzer
Interface.Figure1-1showsthe35601Ainstalledinan-hp-3047ASpectrumAnalyzer
System.Thismanualispartofthesystemlibraryforthe-hp-3047A.Thepartnumbersfor
boththeprintedmanualandthemanualonmicrofichearelistedonthetitlepageofthis
manual.Additionalcopiesof this manual,ineitherform,areavailablethroughyournearest
Hewlett-PackardSales/Serviceoffice(alistoftheseareinthebackofthismanual).
Thissectioncontainsthespecifications,generaldescription,safetyconsiderations,and
recommendedtestequipmentforthe-hp-35601ASpectrumAnalyzerInterface.
Figure1-1.The-hp-35601ASpectrumAnalyzerInterfaceInstalledinthe-hp-3047A
1-1

GeneralInformation Model35601A
12. DESCRIPTION
The-hp-35601AistheSpectrumAnalyzerInterfaceforthe-hp-3047ASpectrumAnalyzer
System.Thisinstrumentisnotavailablebyitself or asanaccessory;ithasbeendesignedex-
clusivelyforthe-hp-3047ASystem.The-hp-35601Aprovidesthenecessaryinterfacingof
thespectrumanalyzersinallthreeoperatingmodesofthe-hp-3047A.
1-3.SPECIFICATIONS
The-hp-35601Ahasnospecificationsofitsown.The-hp-3047ASpectrumAnalyzer
Systemhasspecificationsfortheentiresystemaswellasfortheindividualspectrum
analyzers,howevertherearenospecificationsthatapplytotheSpectrumAnalyzerInterface
alone.
1-4.SAFETYCONSIDERATIONS
TheSpectrumAnalyzerInterfaceisa SafetyClassI instrumentandhasbeendesigned
accordingtointernationalsafetystandards.Toensuresafeoperationandtoretainthein-
strumentina safecondition,theOperatingandServiceManualcontainsinformation,cau-
tionsandwarningswhichmustbeadheredtobytheuser.NOTE:SeetheSafetySummary
followingtheTableofContentsofthismanualfora discussionofbasicsafetyprecautions
andsafetysymbology.
The35601Afrontpanelcontainsa /V± symbolwhichisaninternationalsymbolmean-
ing*'refertotheOperatingandServiceManual".Thesymbolflagsimportantoperatingin-
structionslocatedinSectionIIIrequiredtopreventdamagetotheinstrument.Toretainthe
operatingconditionoftheinstrumenttheseinstructionsmustbeadheredto.
15. RECOMMENDEDTESTEQUIPMENT
Theequipmentrecommendedforthetestingandcalibrationofthe-hp-35601Aisshownin
Table1-1.
1-2

Model35601A GeneralInformation
Table1-1.RecommendedTestEquipment
1Equipment
1ServiceTape
for-hp-9845BSeries100
I
or
IServiceTape
for-hp-9845BSeries200
or
IServiceDisc
Ifor-hp-9836
IDesktopComputer
ISynthesizer
IDigitalVoltmeter
IOscilloscope
Counter
SignatureAnalyzer
5012Termination
(2)HP-IBCable
I(5)BNCCables
I<2)BNC"T"!
Critical
Specifications
HP-IBCapability
HP-IBControllable
10MHzReference
HP-IBControllable
75MHzBandwidth
100MHz
Recommended
hpModelNo.|
-hp- partnumber
35601-10001
-hp- partnumber
35601-10006
-hp- partnumber
35601-10011
-hp- 9836or
-hp- 9845Bwith1
-hp- 98034A
-hp- 3325Aopt001I
-hp- 3455A
-hp- 180A,1808A.~j
1821A
orI
-hp- 1740A1
-hp-5314A
-hp- 5004AI
-hp- 11048AI
-hp- 10833A 1
-hp- 11170C1
-hp- partnumber1
1250-0781I
1-3/1-4

Model35601A Installation
SECTION II
INSTALLATION
2-1. INTRODUCTION
Thissectioncontainsinformationfortheinstallationof the-hp- Model35601Aintothe-hp-
3047ASpectrumAnalyzerSystem.Alsoincludedinthissectionisa discussionof the instru-
ment'spowerrequirementsandrepackaginginformation.Sincethe-hp-3047Aissupplied
withthe-hp-35601Ainstalled,thissectionisprovidedonlyforreferenceincasethe-hp-
35601Ahasbeenremovedforservice.However,asa precaution,makesurethecorrectline
voltageselectionhasbeenmadebeforeapplyingpowertotheinstrument.
2-2. POWERREQUIREMENTS
Before applying ac-linepower to the -hp- 35601 A, be sure that the
VOLTAGE SELECTOR switches are set for the proper line
voltage and the correct linefuse is installed in therearpanelFUSE
holder.
2-3. LineVoltageandFrequency
The-hp-35601Arequiresa singlephasepowersourceof:
86V to127V (48Hzto66Hz),or
189V to225V (48Hzto66Hz)
2-4.GroundingRequirements
Toprotectoperatingpersonnel,theinstrument'spanelandcabinetmustbegrounded.The
-hp- 35601Aisequippedwitha three-wirepowercordwhich,whenpluggedintoanap-
propriatereceptacle,groundstheinstrument.Theoffsetpinonthepowerplugistheground
connection.
WARNING
/.Thepower cableplug must be inserted into a socket outlet pro-
vided with a protective earth contact. The protection of the
grounded instrument cabinet must not be negated by the use ofan
extension cord without aprotective conductor.
2. If thisinstrument is to be energized via an auto-transformer to
reduce or increase the line voltage, makesure that the common ter-
minal is connected to the Earth pole of the power source.
2-1

Installation Model35601A
Figure2 1.LineVoltageRanges
2-5.INSTALLATIONINTOSYSTEM
The-hp-3047Aissuppliedwiththe-hp-35601ASpectrumAnalyzerInterfacealreadyin-
stalled.Unlesstheinstrumenthasbeenremovedfromthesystemforcalibrationorservice,
justcheckforproperfuseinstallationandlinevoltageselectionbeforeapplyingpowertothe
instrument.
2-6. LineVoltageandFuseSelection
fCAUTIONj
Before applying ac-line power to the -hp- 35601 A, be sure that
the VOLTAGE SELECTOR switches are set for theproper line
voltage and the correct linefuse is installedin the rear panelFUSE
holder.
Voltageselectionswitchesontherearpanelareusedtoconfiguretheinstrumenttooperate
ononeoffourinputlinevoltageranges.Therangeofinputvoltagesforeachconfiguration
oftheswitchesisillustratedinFigure2-1.Settheswitchestoconformwiththelinevoltage
tobeusedwiththisinstrument.Theswitchpositionsforeachinputvoltagerangearein-
dicatedontherearpanelandinFigure2-2.
Verifythatthelinefuseinstalledinthefuseholderontherearpanelisthecorrectfuse(0.5
amps, -hp-partnumber2110-0012).
r
h ^ :%x
100V
r■
:- ' '
r ' ' 1
i' ' *
i '<
120V
\' *f \
220V 240V
3047-2-2
2-2
Figure2-2.SwitchPositionsForLineVoltageRanges

Model35601A Installation
2-7. HP-IBAddressSelection
The -hp- 35601Aisshippedfromthefactorywitha SelectCodeof15.The-hp-3047Asoft-
warerequiresthatthe -hp- 35601Ahavea selectcodeof 15. Thismaybechangedtoanother
address,ifdesired,providingnootherinstrumentinthesystemhasitsnewaddress.Chang-
ingtheSelectCodeisaccomplishedusingtheDIPswitchesonthe rear panel(seeFigure2-3).
Factory
Set
Address
NOT
USED
ASCIICode
Character
ListenTalk
SP
!
#
$
%
&
A
B
C
D
E
F
G
H
I
J
K
L
M
N
)
#'
+
3047-2-3
AddressSwitches
A1 A2A3A4AS
0
1
2
3
4
5
6
7
8
9
;
P
Q
R
S
T
U
V
w
X
Y
z
[
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
o
0
0
0
o
Decimal
Code
0
1
0
1
0
1
0
1
0
1
0
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
0
0
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
mm
16
17
18
19
20
21
22
23
24
25
26
27
Figure2-3.AddressSelection
2-3

Installation Model35601A
2-8. Mounting
The -hp- 35601wasinstalledintothe-hp-3047Awithsupportrails,rackmount flanges, and
rearframebrackets.Whenmountingthisinstrumentintothe-hp-3047Aafterservicing
thesepartsshouldbeused.TheseareillustratedinFigure2-4.
RackMountFlanges(tworequired)
-hp- partnumber5020-8862
2680-0106
10/32SCREWS
3050-0007
METALWASHERS
3050-0248
NYLONWASHERS 2510-0193
8/32PANHEAD
RearFrameMountingBracket
-hp- partnumber03047-04702
InstrumentSupportRails(tworequired)
-hp- partnumber03047-04701
Figure2-4.MountingHardware

Model35601A Installation
250V
OPERATION
PLUG-:CEE7-V11
CABLE*:HP8120-1692
X
PLUG* :NEMA1-15P
CABLE*:HP8120-0684
250V
OPERATION
PLUG*: CEE22-V1
CABLE*:HP8120-1860
250V
OPERATION
PLUG*: NZSS198/ASC112
CABLE*:HP8120-0696
STD-B-4195(Rev.)
250V
OPERATION
PLUG*: DHCR107
CABLE*:HP8120-2956
250V
OPERATION
PLUG'iBS1363A
CABLE*:HP8120-1703
250V
OPERATION
PLUG*: SEV1011.1959-24507
TYPE12
CABLE*:HP8120-2104
PLUG*:NEMAG-1SP
CABLE*:HP8120-0698
PLUG*: NEMA5-15P
CABLE*:HP8120-1521
•Thenumbershownfortheplugistheindustryidentifierfortheplugonly.
ThenumbershownforthecableisanHPpartnumberfora completecableincludingtheplug.
**ULfeted foruseintheUnitedStatesofAmerica
Figure 2-5. PowerCables
2-9. PowerCableConnection
The-hp-35601Awasinstalledintothe-hp-3047Ausinga three-wirepowercord(-hp-part
number8120-2307).Thisisthetypeofcablethatshouldbeusedtosupplypowertothein-
strumentwhileitisinstalledinthe-hp-3047A,regardlessof power linevoltageandfrequen-
cy.If,forsomereason,theinstrumentistobeoperatedoutofthesystem,thenusetheap-
propriatepowercablefromtheonesshowninFigure2-5.
WiththefrontpanelpowerswitchintheOFFposition,connecttheacpowercabletothe
rearpanelLINEconnector.Plugtheotherendofthepowercableintothethree-terminal
groundedpowerstripinthesystemcabinet.
To protect operating personnel, the -hp- 35601A chassis and
cabinet must be grounded. The -hp- 35601A is equipped with a
three-wire power cord which, when plugged into an appropriate
receptacle,grounds the instrument. Theoffset pin on the power
plug is the ground connection. Topreserve thisprotectionfeature,
thepower plug shall only be inserted in a three-terminalreceptacle
havinga protective earth ground contact. The protective action
must not be negated by the use of an extension cord or adapter
thatdoes not have the requiredearth ground connection. Ground-
ing one conductor of the two-conductor outlet is not sufficient
protection.
2-5

Installation Model35601A
2-10.SignalConnections
Therearethreecablestoconnecttothefrontpanelofthe-hp-35601A,andsixontherear
panel.
NOTE
Use the cables included with the -hp- 3047A when reinstalling the
-hp- 35601A into the system. Also, makesure that thepositions of
the cables are those of the original installation. (See the -hp- 3047A
Installation Manualfor part number and cable routing Informa-
tion.) If either of these conditionsisnot met, the -hp- 3047A may
not perform asspecified.
1. Fromthejackontheupperleftfrontpanellabeled"Inputfrom3585ATracking
Generator",connecta cabletotheoutputofthe3585ATrackingGenerator.
2. Fromthejackonthefrontpanellabeled"OUTPUTSTO3585AIMG"connecta
cabletothe3585A1MQinput.
3. Fromthejackonthefrontpanellabeled"50Q"connecta cabletothe3585A50Qin-
put.
4. Fromthejackontherear panelofthe-hp-35601Alabeled"IFINPUTFROM3585A
IFOUTPUT",connecta cabletothe3585AIFOutput(rearpanelof3585A).
5. Fromthejackontherearpanellabeled"10MHzREFINPUTFROM3585A10MHz
REFOUTPUT",connecta cabletothe3585A10MHzReferenceOutput.
6.Tothejacklabeled"OUTPUTTO3582AA CHANNELINPUT",connectthecor-
rectcablefromthepatchpanelbelowthe-hp-3582A.
7. Tothejacklabeled"OUTPUTTO3582AB CHANNELINPUT",connectthecor-
rectcablefromthepatchpanelbelowthe-hp-3582A.
8.Tothejacklabeled"INPUTFROM3582ANOISESOURCE",connectthecorrect
cablefromthepatchpanelbelowthe-hp-3582A.
9.ConnecttheHP-IBcablefromtheotherinstrumentstotheHP-IBinputontherear
panelofthe-hp-35601A.SeetheNOTEbelowandFigure2-6formoreinformation.
NOTE
To achieve designperformance with the HP-IB, proper voltage
levels and timing relationships must be maintained. If the system
cables are too long, the lines cannot be drivenproperly and, conse-
quently, thesystem willfail to operate. When interconnecting any
HP-IB system, observe the following rules:
a. The total cable length for the system must be less than or
equal to 20 metres (65 feet).
b. The total cable length for the system must be less than or
equal to 2 metres (6feet) times the total number of devices con-
nected to the bus.
2-6