Transcription of HP Archive
1 HP Archive This vintage Hewlett Packard document was preserved and distributed by www. Please visit us on the web ! On-line curator: Louis Taber ~~---"""-~_0',---,::. ,:JI!!C-:_: 0~~-~~"" ;:..-- ~.~-~~0<01r;::; ;_~_I -=="_"=?i "':,."":'"'",.. ~~~'~.~.~~~.'~~HEWLETT~~ wlert Packardfurthercertifiesthiltitscalibrati onmeasurementsaretriICeabletotheUnitedSt atesNationalBureauofStandards,totheexten tallowedbytheBureau'scalibrationfacility , ,Hewlett-PackardCom-panywill,atitsoption , ,thisproductmustbereturnedtoa ,Buyershallpayallshippingcharges,duties, andtaxesforproductsreturnedtoHPfromanoth ercountry, ,orsoftware, ,Buyer-suppliedsoftwareorinterfacing,una uthorizedmodificationormisuse,operationo ut-sideoftheenvironmentalspecificationsf ortheproduct, ,EXCLUSIVEREMEDIESTHEREMEDIESPROVIDEDHER EINAREBUYER' ,INDIRECT,SPECIAL,INCIDENTAL,ORCON-SEQUE NTIALDAMAGES,WHETHERBASEDONCONTRACT,TORT , ,contactyournearestHewlett (IncludingOptions001,002, 003,099,100,101and102)SERIALPREFIXThis manualappliesdirectlytoModel3780 APatternGener- ~.
2 ,$ .. ' (continued)SECTION3 OPERATINGPROCEOUREP aragraph3-1 Introduction3-2 Binaryorcodeerrormeasurements3-3 FrequencyoffsetmeasurementsPage474748 SECTION4 CONNECTIONOFASSOCIATEOINSTRUMENTSP aragraph4-'Introduction" ,.. ,PowerInputModule.,.._,..555-3 Change2,SystematicErrorDetection565-4 Change3, .. ,_62341-1 INTRODUCTION1-2 INSTRUMENTIDENTIFICATlON1-3 TEMPERATURERANGE1-4 INITIALMECHANICALINSPECTION1-5 INITIALELECTRICALINSPECTION1-6 CLAIMSFORSHIPPINGDAMAGE1-7 REPACKAGINGFORSHIPMENTSECTION1 GENERALINFORMATIONT hissectioncontainsgeneralinformationrela tingtotheHewlett-Packard3780 , ,instrumentdescription,options, taininformationonfrontandrearpanelcontro ls,connec-tors,andindicators,basicoperat ingprocedure, , ,a referencelener, ()Oto550C(320to131OF)andtobestoredat_400 to750C( ,Paragraph1-6andrepackaginginformation, ,notifythecarrierandthenearestHewlettPac kardSalesandServiceOffice( Packardfieldofficescanprovidepackingmate rialsusedfor51-8 POWERREQUIREMENTS1 (350Ib!)))
3 Sqinburstingtest) (350lb/SQinburstingtest) +10%to-22%and230V+10%to-18%. , ,asdetailedontherearpanel, (seeTable1 1).Table1-'FusesNominalLineHPPartVoI_Fus eRatingNumber115V3 ATimed211(){) (){)3041 10 SUPPLYCONNECTION1-11 COOLING1 12 AIRFILTER1 2 PowerCableColourCodeLineNeutralGroundEur opeBrownBlueGreen/ + , chosengatingperiodanddisplayedasbiterror rate(SEA)ortotalerrorcount(COUNT) {receiver}.Theoffsetis sOppm( > ' ,oI--ooVERRORDETECTORRECEIVEDHDB3 DECODEDSIGNALo000 CODEERRORt--BINARY---+ showshowa singlebitlostintransmissioncanresultinon ecodeerrorandtwobinaryerrors910' *tionThreemaximallengthpseudorandombinar ysequences(PRSS)oflength511,32767and1048 575bitsandfivefour , ,16bitwordinplaceofthefivefour-bitandran domrepetitivewordpat ,orwhentheinternalSYSTEMATICERRORDETECTI ON switchA37S2issettoOFF, "R"BSbutexcludesanypatterncontainingadde dzerosoralter-natingwords(Options001or00 3).Instrumentsaresuppliedwiththeinternal SYSTEMATICERRORDETECTION switch,A3752, , ,orwithOptions001or003 to~ndmeasurementis givenbelow:Ifthetransmittedword1100isrep eatedlyreceivedas1000astheresultofasyste maticfault, (receivinginstrument)9,150r2010001100 RESULT'" ','NOERRORSWORD~~ERRORSSYNCLOSS~.}}
4 ', " syncloss; , ,ControlandDisplay108or1010clockperiods, Errorcountsovera manuallyorexternallycontrolledtimebasear edisplayedasa +n. Frequencyoffsetisdisplayedasa fractionofthenominalcentrefrequencyinthe formXVx10-nwheren'" , ,givingonetransitionpersequence,is ~patternimmediatelyfollowingit triggeroutput,(forPRBS only)givingonepulsepersequence,froma 16 OPTIONS12 Inadditiontoreceivertriggerandclockoutpu ts, ,aBCDprinteroutputanda :-STANDARDOPTION100 OPTION101 OPTION1022048,8448and1536kHz2048,8448and 34368kHz1544,6312and44736kHz1544,6312and 3152kHz1 17 MEASUREMENTCONFIGURA TIONSI nthecaseofoptions101and102,theHDB3/HDB2c odecis replacedbyaB6 ,theseare"loopback"and"endtoend". :WhentheendtoendconfigurationisusedtheME AS-UREMENT switchofthesendinginst( -0--:q7 ITEM~..UNDER -- -TEST@ @@( l"="@iiiIDATAIDATA3780 ALOOPBACKCONFIGURAnON(USINGRECOVEREDCLOC K)3780A 0--~ 0--~ ITEM0_000- -7l!Sf=":..UNDER~.))
5 0-- -TEST- ,ICLOCKIICLOCKIDATADATAENDTOENDCONFIGURA TION3780A3780A 0--:q~~- -0--':=--TESTlil1iilI".li:~ 88 ..=.. IDATAIIDATAIENDTOENDCONFIGURATION(USINGR ECOVEREDCLOCKI131-18 ACCESSORIES14 Unbalanced/Balancedconverters,Model15508 8 Themodel155088isa 7S,Qunbalancedto11onbalancedimpedancecon verterhavinga frequencyrange1 , ~ UNDER0--' DATADATAOUTPUTINPUT~ cablepreamplifierwith75ninputand25dBgain , !.INTERFACEMONITORPOINT75n3780AU!e:::::: J!-0--I~ @@@)@@--z"'@J75nUNBALANCEDSOURCE ~-~B{'1750n15509A{r, ~POINT~ '0--.:.:('1rh@J@J@@ 5 6% < +150ps)pk-pk;Continuouslyvariableuptoatl east ; (30%ofperiod+2ns). , , ) ,1010. , ; (,0 :Ternary:Codes:Impedance:Amplitude:DCOff set:TransitionTimes:Overshoot:Protection :NAZorRZ(50 6% (SO 6%widthoninternalclock).HDB3orHDB2( , ,mark + , :RelativeDelay:OCOfuet' ,mark3V :RZData:Format:Position:Width:Impedance: Amplitude:TransitionTimes:Overshoot:Prot ection:Rate:Impedance:Triggering:Sensiti vity:Amplitude: ,butoutputheldatzeroduringzeroadd50ohmsn ominaltoground.))}}
6 , , Kb!,- 50Mb!,75ohmsnominaltogroundChoiceofnomin althreshold2 OOmV,BOOmV,orground; (30%ofperiod+ :k!DataPhasingPatternsSynchronisationBin ary:Ternary:Codes:Frequency:Mode:Frequen cy:Polarity:Impedance:Triggering:Sensiti vity:Amplitude:Indicator:RecoveredClock: ExternalClock:PRBSandWORD:Indicators:Mod e:SyncLoss:Manual: (rearpanelswitchcommonwithgenerator).Att hethreeinternalratesofgene-rator(selecti onswitchcommonwithgenerator).Operatesona nydatainputprovidedtherearetwoormoretran sitionsevery20bits(datalossinhibitsclock recoverycircuit). (commonwithgenerator), (30%ofperiod+2ns). (tYpic-ally30$ ; ,PRSS,WOROandALLONES!ZEROS(indicatorsinh ibitedduringsynclossandcodeerrororfreque ncyoffsetmeasurements). ,000errorsin5 CXJ, , :Closedloopbit-by-bitdetectiononanypatte rnproducedbygeneratorexcludingaddedzeros andalternatingwords_DisplayBERCODEERRORS ,..MI:HDB3,HDB2/B3ZS'BBZS,FREQUENCYOFFSE T,Method:Gating:Format:Range:Accuracy:De tectedonanypatternaccordingtothefollowin gruleswhere0cspace, '"markV= (seeoptions)lOOOOOOV landQOOOClOVOproducea singlecodeerror).)
7 , ~ (binaryerrors). + ( '-+ (codeerr-orsover108clocks). 10-5~ (codeerr-orsover106clocks). :Gating:Format: ,OFFSETG ating:Format:Range: +nLEDwithautomaticround u~. + 1O-nwithautomaticround-upUpto25kHzdeviat ionfromnominalcrystalrate. BER&FREOINGOFFSET:COUNT:20 Displaystrobedatendofgatingin-terval; (LED'slPrinterOutput(rearpanel)Gating:Sy ncLoss:Overflow:<100 Errors:Format:Flags:PrintModes:PrintComm and:Indicatesmeasurementinprogress, ,displayblanksandmeasure-mentisterminate d(SER)orhalted(COUNT);flagremainslitfora tleast500ms(SEAlorheld(COUNT) ~ (SEA)orhatted(COUNT);flagremainslitforat least500msISEA)orheld(COUNT) ( ).8421 BCD10columnsBEAF*X Y 10-NCOUNTF*X Y l0+NF Vfor<100errorsF""1foroverflowF""2forsync lossF 3forclocklossF""4fordatalossBEA-printcom mandgivenonter <10-8<10-7<10-"<10-'<10-4<10-'<10-2<10-' :;'10-1synclosssignallossSERC urrentsourcewith5(X) ""level1514131211109874oFourlevelsignalF SD""level1574oFormat:Impedance: ) + (rearpanel)Format:Impedance:Amplitude:Tr ansitionTimes:Overshoot:Protection:Onepu lsepererror(inhibitedduringsyncloss).)
8 :PositionWidth:Impedance:Amplitude:Trans itionTimes:Overshoot:Protection:Onepulse persequence(PASS only)Nearthestartofthelongestzeroblockin PASS). (rearpanel)GENERALF ormat:Width:Impedance:Amplitude:Transiti onTimes:Overshoot:Protection:22 DetectorclockavailableasamonitorNominal5 O% , :Impedance:PowerSupplyProbePowerConnecto rsDimensionsWeightEnvironmentAccessories AvailableOPTIONS001002115V+10%or230V+10% +5V, ( ( 18 \lbOperatingtemperaturerange0to+ + , ,6312and44736kHzHDB3/HDB2codecreplacedby BSZS! ,6312and3152kHzHDB3/HD82codecreplacedbyB 6 ,CONNECTORSANDINDICATORS2-1 INTRODUC :Paragraph2 22 32-42 52-62 72-62 92 102 11 GENERATORFREQUENC~CONTROLSPATTERNCONTROL SFORMATCONTROLSANDOUTPUTCONNECTORSRECEIV ERINPUTCONTROLSANDCONNECTORSSYNCHRONISAT IONANDSYNCHRONI ~2 GENERATORFREQUENCYCONTROLS312236 45 GENERATORFREQUENCYCONTROLSD eterminegeneratorclockfrequency.(1)TheCL OCKSELECTION switchselectsthegeneratorclocksource:Int heEXTpositionthegeneratorisc1 (4).)
9 IntheNORM positionthegeneratorisclockedwithoneofth ecrystalclockfrequenciesselectedwiththef requencyswitch( (2)byanamountupto (3),(2)TheFREQUENCY switchselectsoneofthreeinter-nalcrystalo scillatorsasa :f1kHzf2kHzf,jHZStandard204884481536 OPtion1002048844834368 OPtion1011544631244736 Option102154463123152(3)TheOFFSET(l:ltlc ontrolcanbeusedtovarythegeneratorclockin gfrequencyfromthefixedvaluesf1f2orf3,sel ectedwiththeFREQUENCY switch(2),byupto (11isintheOFFSET position.( ' (51 TheCLOCKTHRESHOLD switchselectsthetriggeringthresholdforex ternalclocksignalsappliedtobothGenerator andReceivet"sectionsoftheinstrumentviath eCLOCKlIPconnectors(41and(24). 'on'whenanexternalclockinputatCLOCKlIPco nnector(4) 'off' (&) {11and(3) (7)ThePRBS/WORD switchselectsthepatterntobegeneratedfrom fixedfourbitwords:0000,1000,1010,1100,11 11 , selectedmaybeusedtopro-duceannbitwordora 2"-1bitPRSS asselectedwiththe2" refer-ence4bitwordona receivinginstrument116bitwordwithoptions 001or003)inordertodetectsystematicerrors .)))))}
10 (8)WhenthePATTERNSELECTION switch(7)isinoneofthen-9,15or20positions the2"-1/nswitcheitherselectsa2" "-1 PASS continuouslyra (9).(9)TheRUNswitchselectsthecontentofth enbitwordbyallowingthe2n-lbitPRSS torunnormallywhentheswitchispressedandto returntocontinuousre-cyclingofthecurrent nbitswhentheswitchisre-leased.(10)TheZER OADD/ ,upto999,selectedwiththeZEROS switch(9) (normal) (7)(8);;>nd(9) (11)TheZEROS switchselectsthenumberofzerosaddedtoanyp atternwhentheZEROADD positionoftheZEROAOD/NORM/ERRORADD switch(10) 1613 GENERATORFORMATCONTROLSANOOUTPUTCONNECTO RSD eterminegeneratoroutputformat.(12) ,AZ,returntozero,andNRZ,nonreturntozeroa reavailableatbothDATAalP(14)andDELAYDATA alP(15) ,alternatemarkinversion,andCODE,HDB3orHD B2( (14)onlv.(13)TheCODE switchontherearpanelselectsHDB3orHDB2cod eformats(options101and102e6 ZSorB3ZS)whentheCODE positionoftheDATAFOR MATswitch(12)isselected.(14)TheDATAa! 6 Vforshortperiods.)
