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SPLITDECODEDSECURITYKEYPAD
DK-9680
DK-9880
THREEOUTPUTSYSTEMWITHDOORALARM
FORDOORSTRIKEANDSECURITYCONTROLAPPLICATIONS
INTRODUCTION
DK-9680/DK-9880isthecombinationofaccesscontrolkeypad,dooralarmanddoorchimeinonesystem.Itis
anidealsystemforofficeandhomesecurityinstallations.
Thesystemisadopting"SplitDecoded"designphilosophytogivehighestsecurity.EachDK-9680/DK-9880issplit
intotwoparts,theremotekeypadunitandthemasterdecoderunit,theycommunicatewitheachotherindigital
data.Anyonewhotriestocutorshorttheconnectionwiresattheremotekeypadcannotcompromisethesecurityof
thesystemorbypassthekeypadfunction.TheDK-9680/DK-9880usescurrentmodedatabu scommunication,one
masterunitcanaccommodateupto3remotekeypadunitsconnectedinparallelfortotallyindependentoperation.
DK-9680/DK-9880employs3UserCodes(code1,code2,andcode3)andoneSuperUserCodeforoperatingof
the3outputswhicharedesignedfordoorstrikeandothersecurityandaccesscontrolapplications.Withits
EEPROMmemory,thesystem'sprogrammeddataisnonvolatileincaseofpowerfailure.Over100million
combinationsarepossibleforthe3UserCodes,theMasterCode(italsoactsastheSuperUserCode)andthe
DuressCode.Othersecurityfeatures includeduressoutputanddoorsensingfordoorforcedopenalarm,dooropenÂtoo-longalarmanddoorautore-lockfunctions.Facilityforconnectinganegressbuttonforeasyexitisalso
incorporated.Theplasticcaseoftheweatherproofkeypadunit(DK-9680)ispreciselyengineered,inwhich,thefro nt
panelandthemountingboxissealedwithawaterresistantgasketmakingthekeypadunitsuitableforbothin-door
andout-doorinstallations;whiletheslimkeypadunit(DK-9880)isdesignedinthefashionthatblendssmoothlyint o
anyresidentialandofficedecors.
TheDK-9680/DK-9 880isavailablewithversionsA,BandC.Theyarehavingidenticalspecificationsexcepttheiroutputs:
SERIES
DK-9680A/DK-9880A
DK-9680B/DK-9880B
DK-9680C/DK-9880C
OUTPUT1
5AmpRelay
5AmpRelay
OUTPUT2
1AmpRelay
NPNTransistorOpenCollector
OUTPUT3
NPNTransistorOpenCollector
NPNTransistorOpenCollector
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THEMASTERUNIT
POWERINAC/DC
!
Powersupplyinput,12V(24V)ACorDCpowerispossible,Nopolaritydiscriminationfortheterminalsis
required.
DCOUTPUT(+)
!
12V(24V)outputpowerfortheDCoperateddoorlatch.Outputcurrent2Ampmaximum.
COMMONGROUND(-)
!
Thecommongroundingpointofthekeypadsystem.
DATA
!
Thisisthecommunicationdatabusofthemasterunitandtheremotekeypadunit(s).Itisalsothepower
supplylinefortheremotekeypadunit(s).ConnectittotheDATAterminalattheremotekeypadunit(s).
DOORSENSING
!
ANormallyClosed(N.C.)inputcircuitreferstoground.Withthehelpofamagneticcont act(e.g.AEIMC-
01)tomonitorthedoorwhichiscontrolledbyoutput1.Thecircuitisopenwhenthedoorisopen.It
initiatesthefollowingfunctions:
1):WhenthedoorisFORCEDOPEN--thedoorisopenedwithouttheuseofa
DoorForcedOpenAlarm
validcodeortheEGRESSbutton,thedoorforcedopenalarm(built-in)willbeactivefor60seconds.
2):WhenthedoorisLEFTOPENlongerthanthepre-setallowabledooropen
DoorOpen-too-longAlarm
time,thedooropen-too-longalarmwillbeactivecontinuouslyuntilthedoorisclosedagain.
3):Whenthedoorisopenedandthenre-closed,thekeypadwillreleasetheelectric
DoorAutoRe-lock
latchimmediatelytor e-lockthedoorbeforetheendoftheoperationtimeinmomentarymode,oryoudo
notrequiretoenterCode1againtore-lockthedoorinStart/Stopmode.
4):Eachtimewhenthedoorisopened,thedoorchimeactivatesfor2seconds.
VisitorAnnouncer
(Thevoltagevalueinbracketisfor24Vversiononly)
NOTE:
EGRESSINPUT
!
ANormallyOpen(N.O.)inputterminalrefersto(-)ground.ConnectittoCommonGround(-)viaa
momentarypush-buttonswitchtoactivateOutput1.Allowsusertobypassthesecurity code1bypushing
thepush-buttonswitch.Thisswitchisnormallyputinsidetheprotectedpremisenearthedoortoallow
thoseinsidetheprotectedpremisetoexitwithoutkeyinginthecode.
Leavethisterminalopenifitisnotused.
DURESSOUTPUT
!
AnNPNtransistoropencollectoroutput.Itswitchestoground(-)whentheDuressCodeisentered.
Connecttoactivateanalarmcontrolpanelortelephonedialer.
Outputtransistorrating:Icmax--100mAsink,Vcemax--12V(24V)DC
1)TheabovefunctionsareavailableforOutput1only.Pleasesee"PROGRAMMING"toenablethe
desiredfunctions.
2)ConnectthisterminaltoCommonGround(-)ifdoorsensingisnotused.
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!
OUTPUT1
5Amprelaydrycontacts,withNormallyOpen(N.O.)andNormallyClosed(N.C.)terminals.Thisrelayis
primarilypreparedfordoorstrikeapplication,orforothersecurityandaccesscontrols.UsetheN.O.contact
fordoorstrikeconnection.Ifforothersecurityandaccesscontrolapplications,pleaseconsultthemanualof
yoursystemfortheappropriatepairofterminals(N.C.orN.O.)fortheconnection.Therelayoutputis
programmableformomentaryorstart/stopoperation.
!
OUTPUT2
Output2ispreparedforothersecurityandaccesscontrolapplications.Theoutputisprog rammablefor
momentaryorstart/stopoperation.VersionABuserelayoutput,andtheVersionCusestransistoroutput.
VersionA&B
VersionC:
(activates).Transistorratings:Icmax--100mAsink,Vcemax--12V(24V)DC
!
OUTPUT3
Output3hasidenticalfunctionasoutput2.Itisalsopreparedforothersecurityandaccesscontrol
applications.Theoutputisprogrammableformomentaryorstart/stopoperation.VersionAusesrelayoutput,
andVersionBCusetransistorout put.
VersionA:
VersionBC:&
Transistorratings:Icmax--100mAsink,Vcemax--12V(24V)DC
(VersionA,BC)
:1Amprelaydrycontacts,withN.O.andN.C.outputterminals.
AnNPNtransistoropencollectoroutput.Itswitchestoground(-)whenCode2isentered
&
1Amprelaydrycontacts,withN.O.andN.C.outputterminals.
AnNPNtransistoropencollectoroutput.Itswitchestoground(-)whenCode3isentered(activates).
&
&
THEREMOTEKEYPADUNIT
!
DATA(+)
Thisisthecommunicationdatabusofthesystem.Itisalsothepowersupplyinputterminaloftheremote
keypadunit.Linkitupwiththe"DATA"terminalatthemasterunit.
!
GND(-)
Thecommongroundingpointoftheremotekeypad.
!
GREEN&REDLEDS
TwoLEDlampsarepreparedforfreeconnectionincaseofalarmstatusoraccesscontroloperation
indicationisrequired.EachLEDisconnected witha1.5KOhmcurrentlimitingresistor.
!
VISIBLEANDAUDIBLEINDICATORS
Thebuilt-inbuzzeratremotekeypad(orthespeakeratthemaster)andtheamberLEDgeneratesthe
followingtonesandsignalsforoperationstatus:
STATUS
1.Inprogrammingmode
2.Successfulkeyentry
3.Successfulcodeentry
4.Unsuccessfulcodeentry
5.DAPjumpernotreplaced
6.Standbymode
THEDAPJUMPER
IfthePersonalMasterCodeisforgotten,usetheDAPjumpertooverridetheforgottencodepermittingdirect
entryintotheprogrammingmode.Youarerequiredtoapplythefollowingprocedureprecisely:
1.Disconnectpowersupply.
2.DisplacetheDAPjumperfromOFFtoONposition.
3.Reconnectpowersupply(speakerisactivated).
4.PuttheDAPjumperbacktoOFFposition(thisdone,thespeakerisde-activated).
5.Thekeypadisinprogrammingmode,readytoreceivenewdata.
6.EnterthenewdatastartingfromSection(B)shownintheSummaryChart.
DAP(IRECTCCESSTOROGRAMMING)
---
1Beep
2Beeps
5Beeps
ContinuousBeeps(speaker)
---
TONES
ON
1Flash
2Flashes
5Flashes
1Flashevery2seconds
1Flashevery2seconds
LEDSIGNALS
KEYBOARDILLUMINATIONLED(DK-9680),KEYLED(DK-9880)
TheLEDligh tsupfor10secondswhenakeybuttonispressed,whichindicatesthedurationoftheallowabletime
foreachdigitincodeentry.ThedigitofcodeentryisinvalidwhentheLEDisoff.
THEFACTORY-SETDATA
Fortheowner'sconvenienceinprogrammingatthefirsttime,thefactoryhasputaMasterCode0000intothe
keypad.TheownerhastoputhisownUniqueCodes&Dataintothekeypadbeforeuse.Tocompromisesecurity,
inallcases,theownershouldprogramaPersonalMasterCodetoinvalidatethefactory-setMasterCode.
--IMPORTANTNOTE
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PROGRAMMINGTHEKEYPAD --SUMMARY
A)Usethefactory-setMasterCodeentryinprogramming
EntryofCodeValidationComments
0000*Enterinprogrammingmodebythefactory-setMasterCode
B)RecordingofPersonalMasterCodeUserCodes
AccessKeysEntryofCodesValidationComments
0From1to8digits#PersonalMasterCodeSuperUserCode
1From1to8digits#UserCode1,DuressCodeDoorForced-open-alarmOFFCode
2F
3From1to8digits#UserCode3
C)ConfigurationofRelayOutputs
AccessKeysCodeDuration
40From1to999
41
42
50From1to999
51
rom1to8digits#UserCode2
&
--InstallerProgramming
ValidationComments
#Output1inMomentarymodefrom1to999seconds
#Output1inStart/Stopmodewithoutacceleratedcode
#Output1inStart/Stopmodewithacceleratedcode
#Output2inMomentarymodefrom1to999seconds
#Output2inStart/Stopmodewithoutacceleratedcode
--Whenstartingforfirst-time
--UserProgramming
&
&
Autore-lockis
possible,see
"DoorSensing"
fordetails.
52
60From1to999
61
62
D)PersonalSafety
AccessKeysValidationComments
70#After10successivefalsecodes,thek eypadlocksduring30seconds
71#After10successivefalsecodes,theDuressOutputswitchestoground(activates)
72#Disappearanceofthe2abovesecurities
E)DoorForced-open-alarm--VisitorAnnouncing
AccessKeysValidationComments
80#DoorForced-open-alarmdetectionisDisabled
81#DoorForced-open-alarmdetectionisEnabled
82#VisitorannouncingchimeisgivenifUserCode1isnotkeyedinwhenthe
83#Visitorannouncingchimeisalwaysgivenwhenthedoorisopened
--InstallerProgramming
#Output2inStart/Stopmodewithacceleratedcode
#Output3inMomentarymodefrom1to999seconds
#Output3inStart/Stopmodewithoutacceleratedcode
#Output3inStart/Stopmodewithacceleratedcode
doorisopened.
--InstallerProgramming
F)AllowableDoor-left-openTime(DoorOpen-too-longAlarm)
AccessKeysCodeDurationValidationComments
90#ThetimerisDisabled.Allowsthedoora ninfinitetimetoopenfor
9From1to9999#Allowabletimefrom1to9999secondsfordooropenbeforethe
doorOpen-too-longalarmistriggered
G)ExitProgrammingMode
ValidationComments
*Exitsprogrammingmode,returnstonormaloperation
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--InstallerProgramming
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PROGRAMMINGTHEKEYPAD
--EXAMPLE
1)REUIREMENT
Q
--Thefollowingdataarerequiredtobestored:
a)Changethefactory-setMasterCode0000toaPersonalMasterCode3289
b)SetUserCode1in8321
c)SetUserCode2in6854
d)SetUserCode3in9270
e)SetOutput1inMomentarymode,5seconds
f)SetOutput2inStart/Stopmodewithoutacceleratedcode
g)SetOutput3inStart/Stopmodewithacceleratedcode
h)Setthekeypadtolockitselfduring30secondsafter10successivefalsecodes
i)SetthekeypadwithdoorForced-open-alarmenabled
j)Settheallowabletimefordoorleftopento60secondsbeforethedooropen-too-longalarmistriggered
2)PROGRAMMING
0
0 0
0
2
5
2
8
8
2
0 5
--P uttherequireddataaboveintothekeypad:
0
8
2
5
0
Entertheprogrammingmodeusingthefactory-setMasterCode
3289hasbeenstoredasthenewpersonalMasterCodeSuperUserCode
8321hasbeenstoredasUserCode1,DuressCodedoorForced-open-alarmOFFcode
6854hasbeenstoredasUserCode2
9270hasbeenstoredasUserCode3
Output1hasbeensetinMomentaryMode,5seconds
Output2hasbeensetinStart/StopModewithoutacceleratedcode
&
&
2
0
8
0
Output3hasbeensetinStart/StopModewithacceleratedcode
Thekeypadhasbeensettolockduring30secondsafter10successivefalsecodes
Thekeypadhasbeense twithdoorforced-open-alarmenabled
Thekeypadhasbeensetwith60secondsallowabletimefordoorleftopen
Exitprogrammingmode,withallthedataabovestored.Readyforuse
NOTE:
USINGTHEKEYPAD
1)Tocommandtheoutput1,2enterthecorrespondingcodesintothekeypadandvalidateviathe#key.
8
2)ThePersonalMasterCodeisalsotheforoutputs1,23.Itallowstheownertouse
ONLYONECODE
intothekeypadandvalidateviathe#keythecorrespondingoutputnumber(s).
Incaseofwrongentryduringprogramming,cancelitwith#keyorwait10seconds,thenre-enter.
--TAKINGTHEDATAPROGRAMMEDABOVEASREFERENCE
&3,
2
5
8
2
2
2
2
0
8
8
8
Output1activatesfor5seconds
Output2starts(orstops)
Output3starts(orstops)
SUPERUSERCODE
tooperatethe3outputs.Tocommandoutput1,23,enter thePersonalMasterCode
&,
&,
PLUS
Output1activatesfor5seconds
Output2starts(orstops)
2
Output3starts(orstops)
3)Thedoesnotneedtobeprogrammed.Thekeypaddeterminesitautomaticallybyincreasing
DURESSCODE
thefirstdigitoftheofunits.
USERCODE1TWO
Forexample:IftheUserCode1is"1234",thentheDuressCodeis"3234".IftheUserCode1is"8321",then
theDuressCodeis"0321".
TocommandtheentertheDuressCodeandvalidateviathe#key.
0
2
DURESSOUTPUT,
Duressoutputactivates,Output1activatesfor5seconds
TheDuressCodehasadoubleaction .ItcontrolstheRelayOutput1atthesametimeasliketheUserCode
1andactivatestheDuressOutput.TheDuressCodecanalwaysactivateanddeactivatetheRelayOutput1,
butcannotdeactivatetheDuressOutput.thecompositionofUserCode1candeactivate(reset)the
ONLY
DuressOutput.
NOTE:
Allalarmswillbestopped,includingthedoorforced-open-alarmandthedooropen-too-longalarm,
whenDuressfunctionisinoperation(theDuressCodeiskeyedin).
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4)Theiftheoneoutputfrom1to3,hasbeenprogrammedinStart/Stopmodewith
ACCELERATEDCODE,
AcceleratedCode,itispossibletoactivatewithonlythefromCode1toCode3,ofthe
correspondingcode.DeactivatingofthisoutputalwaysrequiresthecompositionoftheCompleteCode.
Inthisexample,Output3hasbeenprogrammedinStart/StopModewithAcceleratedCode.
TheCompleteCodeofCode3:TheAcceleratedCodeofCode3:
927092
FIRSTTWODIGITS,
2
2 0
5)Trytoputsome1to8digitsrandomfalsecodestothekeypadtotestitsThekeypadgenerates5
beepsforeachunsuccessfulcodeentryafterthe#keyispr essed.Thekeypadlocksitselfduring30seconds
after10successivefalsecodesareentered.Normaloperationwillberesumedafterthe30secondsexpired.
NOTE:
6Inthisexample,thesystemhasbeenprogrammedwithenabled.Trytoopen
)
thedoorwhichisequippedwithwithouttheuseoforthe
BUTTON.
Code1beforethe endofthealarmtime.
NOTE:
7)ThetrytocommandOutput1byuseoforthe
BUTTON.DOORSENSINGSWITCH,
60seconds(theprogrammedtime).Thealarmstartstoactivate.Closethedoor,thealarmstops.Thisfeature
remindstheownertoclosethedoorincaseitisstuck.
8)ThiskeypadincorporatesToactivatethedoorchime,justsimplypressthesignkey.
ThemaximumallowabletimeforaSUCCESSIVEDIGITandaSUCCESSIVECODEare10secondsand
30secondsrespectively.Thekeypadrefreshesitselfautomaticallyaftertheallowabletimesareexpired.
Thealarmwillactivateinstantlyfor60seconds.ThealarmcanbestoppedbykeyingintheUser
Thistestingmaynotbefeasibleifthedoorislocked.Itisnecessarytoun-lockthedoorbyuseofthe
mechanicalkeybeforethetesting.
DOOROPEN-TOO-LONGALARM,CODE1EGRESS
Openthedoorwhichisequippedwithandleaveitopenformorethan
Output3starts
Output3stops
SAFETY.
DOORFORCED-OPEN-ALARM
DOORSENSINGSWITCH,CODE1EGRESS
DOORCHIME.BELL
RE-PROGRAMMINGTHEKEYPADFOROTHEROPERATIONMODES
1)ToaccesstoenteryourPersonalMasterCodeandvalidateviathe*key.
PROGRAMMINGMODE,
2 8
2)SetRelayOutput1inStart/StopModewithoutacceleratedcode.
3)Setkeypadtoactivateafter10successivefalsecodes.
4)Setthekeypadtogivewhenthedoorisopen.
8
5)Setthekeypadtoallowthedooraninfinitetimetoopenfor.
0
6)Re-p rogramningisfinish.Exitprogrammingmode.
Thekey padisinProgrammingModereadytoreceivenewdata
Output1hasbeenchangedfromMomentaryModetoStart/StopMode
DURESSOUTPUT
Thekeypadhasbeenchangedfromlocks30secondstoactivatesDuressOutput
VISITORANNOUNCINGCHIME
Thekeypadhasbeenchangedfromgivingdoorforced-open-alarmtovisitorchime
Thedoor-left-opentimerisdisabled,thedoorisallowedinfinitetimeofopening
Thekeypadisbacktonormaloperationmodewithallre-programmeddatastored
&
USINGTHEKEYPADWITHTHENEWLYRE-PROGRAMMEDDATA
1)TocommandRelayOutput1,entertheUserCode1andvalidateviathe#key.
28
InStart/Stopoperationmode,itisnecessarytoenterCode1againtoOutput1.IfOutput1isfordoor
strikeapplication,itissuggestedtoworkwitha(thesamesensingswitchforthe
alarms)toinitiatethefunction,inwhich,enterCode1againforre-lockingthedooris
notnecessary.
2)Trytoputsome1to8digitsfalsecodestothekeypadtotestitsThekeypadwillactivat ethe
DURESSOUTPUT
requiredtoenterthecompositionoftheUserCode1andvalidateviathe#key.
3)Trytoopenthedoor,thesystemwillalwaysgive
4)Trytoopenthedoor,andleaveitopen.Nodooropen-too-longalarmwillbegiven.
RelayOutput1starts
STOP
DOORSENSINGSWITCH
AUTORE-LOCK(STOP)
SAFETY.
after10successivefalsecodesareentered.Toreset(deactivate)theDuressOutput,youare
VISITORANNOUNCINGCHIME.
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CONNECTINGTHEREMOTEKEYPADUNIT(S)TOTHEMASTERUNIT
ThebasicDK-9680/DK-9880systemcomeswithoneMasterunitandoneRemoteKeypadunit.Actually,each
masterunitallowsmaximum3remotekeypadunitsconnectingtoit.TheDK-9680/DK-9880systemusescurrent
modedatabuscommunication,whichmakestheadditionalkeypadconnectionsverysimple,justconnectingall
the"DATA"andGNDterminalsofthekeypadunitsandthemasterunitinparallelasthediagramshownbelow.""
FOROPERATION-
normaloperation.
FORPROGRAMMING-
theonehasbeenselectedforprogramming,theotherkeypadsinthesystemwillbedisableduntilthesystem
exitstheprogrammingmode.Anyoneofthekeypadunitscanbeselectedasaprogrammingkeypadunderone
ofthefollowingconditions:
1)WhenthePersonalMasterCodehasbeenkeyed-intothatkeypadunit.
2)AfteruseoftheDAPjumperenteringtoprogrammingmode,allthekeypadunitsinthesyste mareprepared
fortheselection.Whentheoneisfirstkeyed-inwithanycode,itisconsideredtobeselectedasthe
programmingkeypadautomatically.
Alltheremotekeypadunitsinthesystemgiveidenticalcontrolfunctiontothemasterunitin
Anyoneoftheremotekeypadunitsinthesystemcanbeusedforprogramming.Once
THETAMPERSWITCHOFTHEREMOTEKEYPADUNIT
Eachkeypadunitemploysatamperswitchwhichisnormallydepressed.Whenthekeypadunitisseparated
fromthemountingbox,itwillbereleasedandwillmakethekeypadunittosendanalarmcommandtothe
Mastertogeneratealarmoutputfor60seconds.Thealarmcanbestoppedbykeying-intheUserCode1before
theendofthealarmtime.
SPECIFICATIONS
OperationVoltage
!
CurrentDrain
!
OperationalCodes
!
CodeCombinations
!
RelayOutput
!
DuressOutput
!
DigitEntr yTime
!
CodeEntryTime
!
Dimensions(approx.)
!
Weight(approx.)
!
:12VVersion-12VNorminal,10-14VAC/DC;24VVersion-24VNorminal,20-28VAC/DC
:50-160mA(VersionA),50-120mA(VersionB),50-80mA(VersionC)
:Master,User1,2&,3,SuperUser,DuressandAcceleratedCodes
:111,111,100
:Output1--5AmpN.O.&N.C.drycontacts,30VDCmaximum
Output2&3--1AmpN.O.&N.C.drycontacts,orNPNtransistoropencollector
output,100mAsink,12VDC(24VDC)max.
:NPNtransistoropencollectorswitchingtoground,100mAsink,12V(24V)DCmax.
:
10seconds,autorefresh
:30seconds,autorefresh
:Master--120(W)mmX87(D)mmX32.5(H)mm
Keypad:(DK-9680) --84(W)mmX41(D)mmX129(H)mm;
(DK-9880)--117(W)mmX21(D)mmX117(H)mm
:Master--200g(net)
Keypad(DK-9680)--155g(net);(DK-9880)--130g(net)
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TYPICALAPPLICATION
Output1:Output2:Output3:DoorStrikeAlarmControlAuxiliarySecurityorAccessControl
*Pleaseconsultyouralarm/securitysystemmanualfortheselectionofN.C.orN.O.forthesystemON-OFF
control.ForthoseOpenCollectorOutputsattheDK-9680B/DK-9880BandDK-9680C/DK-9880C,please
considerthemasN.O.outputcontactsreferringto(-)ground.
APPENDIX
DRYCONTACT
!
Adrycontactmeansthatnoelectricitywasconnectedtoit.Itispreparedforfreeconnections.Usuallythe
relayoutputcontactsprovidedinakeypadsystemaredrycontacts.
N.C.
!
StandsforNormallyClosed,thecontactisclosedcircuitatnormalstatus.Itisopencircuitwhenactivated.
N.O.
!
StandsforNormallyOpen,thecontact isopencircuitatnormalstatus.Itisclosedcircuitwhenactivated.
TRANSISTOROPENCOLLECTOROUTPUT
!
AnopencollectoroutputisequivalenttoaNormallyOpen(N.O.)contactreferringtogroundsimilartoan
N.O.relaycontactreferringtoground.ThetransistorisnormallyOFF,anditsoutputisswitchedtoground
(-)whenactivated.Theopencollectortransistorcanonlyprovideswitchingfunctionforsmallpowerbutit
isusuallygoodenoughforcontrollinganalarmsystem.
Output2&3inDK-9680C/DK-9880C,output3inDK-9680B/DK-9880B,andtheDuressOutputinall3
keypadsareopencollectoroutputs.
SINCE1979
AEIADVANCEDELECTRONICSINDUSTRYLTD.
8