Omron Automotive Electronics Korea OKA-320T Remote Keyless Entry System User Manual OKA 320T user s manual

Omron Automotive Electronics Korea Co., Ltd. Remote Keyless Entry System OKA 320T user s manual

User Manual

OMRONAUTOMOTIVEELECTRONICSKOREAOKA-320TTransmitter,RFKeylessEntrySystem
1.ConstitutionoftheRadioFrequencyKeylessEntrySystemforvehicleTheradiofrequencykeylessentryis asystemthatitcontrolslockingandunlockingthedoorandalarmthehornbywirelessremotecontroller.Thissystemconsistsofthreecomponents.TheTRANSMITTERisadevicethattransmitsthesignalwhenthebuttonispressed. Thetransmissionsignal consistsofseveralsynchronouscodes,uniqueidentificationcode,securitycodeandfunctioncode.TheRECEIVERisfixedinsidethevehicle.Itworksintermittentlytopreventthebatteryexhaustion. Whenthereceiverdetectsthesynchronouscode,itrunscontinuouslytoreceivethesignalscompletely.Afterreceivingthesignal,thereceiverdecideswhichoperationwillbeperformed. The user can select the following operations by pressing thebutton oftheremotetransmitter.OPERATIONACTIONLOCK lockthedoorUNLOCK unlockthedoorPANIC alarmthehornTransmitterf=313.85MHz-2-
2.OperationREMOTETRANSMITTERYoucanlockandunlockyourvehiclewiththeremotetransmitter.LOCKWhenyoupushtheLOCKbutton,allthedoorswilllock.Youcannotlockanyofthedoorswiththeremotetransmitterifanydoorisopenorthekeyistheignitionswitch.UNLOCKWhenyoupushtheUNLOCKbutton,allthedoorswillunlock.Youcannotunlockanyofthedoorswiththeremotetransmitterifanydoorisopenorthekeyisintheignitionswitch.PANICWhenyoupushthePANICbutton,hornwillalarm.-3-LEDLOCKUNLOCK PANIC
3.Specification3.1CPUTypeROMRAMEEPROMClockfrequencyClockfrequencygenerationPackageuPD789860-xxx(8bit)Manufacturer:NECCorporation4Kbytes128bytes32bytes4.19MHzCRYSTALOsillation20pinSSOP3.2RFblockCarrerfrequencyFrequencygenerationModulationBittransmissionrateBandwidthRFoutputpower(fieldstrength)313.85MHzCRYSTALOSILLATIONFSK1000bpsor500bps120KHz<75.55dBuV/mat3m3.3OthersDimensionWeighBatteryOperationVoltageOperationTemperature62mm(H)×34mm(W)×15mm(T)23gLithiumcell(CR2032)Manufacturer:PANASONICBatterycorporationetc.DC3V,10mA-20+60℃˜ ℃-4-
4.Features4.1TransmissionframeThetransmissionbeginsimmediatelyincaseofLOCKandUNLOCKandPANICbuttonispressed.Thetransmissionframeconsistsofthesynchronousframeandthedataframe.Thesynchronousframehas30synchronouscodesthatitwillbeusedforthereceivertowakeup.Thedataframeconsistsof24bitlengthidentificationcode,16bitsecuritycodeandfunctioncode.16milliondifferentidentificationcodesareavailable.Thesecuritycodeisalwayschangedincaseofanyofthebuttonsispressed.Thetransmissiontimeistypically300milliseconds.4.2BatterysavingTopreventthebatteryexhaustion,themicro-computerofthetransmitterisusuallyinactive.Whenthebuttonwillbepressed,themicro-computerwakesupimmediatelyandjudgeswhichbuttonispressing.Thenthemicro-computerconstructsthetransmissionframeandradiatesitfromtheantenna.Aftertransmitting,themicro-computerswitchesstand-bymodebyitself.-5-

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