Omron Automotive Electronics Korea OKA-220R RF Keyless Entry System User Manual MANUAL AND BLOCK DIAGRAM

Omron Automotive Electronics Korea Co., Ltd. RF Keyless Entry System MANUAL AND BLOCK DIAGRAM

MANUAL AND BLOCK DIAGRAM

RECEIVER, RF Keyless Entry SystemOMRONAUTOMOTIVEELECTRONICSKOREA OKA - 220R
Table of contents1. Constitution of the Radio Frequency Keyless Entry system Controller for vehicle ------ 12. User's manual (provisionally) ----------------------------------------------------------------------- 23. Block diagram ------------------------------------------------------------------------------------------ 34. Specification -------------------------------------------------------------------------------------------- 45. Features -------------------------------------------------------------------------------------------------- 56. Derivatives ---------------------------------------------------------------------------------------------- 5
- 1 -1. Constitution of the Radio Frequency Keyless Entry System for vehicleThe radio frequency keyless entry is a system that it controllers locking and unlocking the door and open the trunk by wirelessremote controller. This system consists of three components. The TRANSMITTER is a device that transmits the signal when thebutton is pressed. The transmission signal consists of several synchronous codes, unique identification code , security code andfunction code. The RECEIVER is fixed inside the vehicle. It works intermittently to prevent the battery exhaustion. When thereceiver detects the sychronous code, it runs continuously to receive the signals completely. After receiveing the signal, thereceiver decides which operation will be performed. The user can select the following operations by pressing the button of theremote transmitter. OPERATION ACTION LOCK lock the door UNLOCK unlock the door TRUNK open the trunk
- 2 -2. User's manual (provisionally) REMOTE TRANSMITTERYou can lock and unlock and open the trunk your vehicle with the remote transmitter. LOCK When you push the LOCK button, all the doors will lock. You cannot lock any of the doors with the remote transmitter if any door is open or the key is the ignition switch. UNLOCK When you push the UNLOCK button, all the doors will unlock. You cannot unlock any of the doors with the remote transmitter if any door is open or the key is in the ignition switch. TRUNK When you push the TRUNK button, Door of trunk will open.
- 3 -3. Block diagram This is the block diagram concerning to the receiver. figure 3.1 block diagram of the transmitter
- 4 -4. Specification4.1 CPU4.2 EEPROM4.3 RF Receiver Module4.4 Others Type ROM RAM Clock frequency Clock frequency generation Package MB89637(8bit) Manufacturer : Fujitsu 32K x 8bit 1K x 8bit 10MHz Crystal resonator 64pin QFP Type Memory Package S-29131 Manufacturer: Seiko. Elec 1Kbit 8pin SOP Type Local clock frequency Frequency generation Modulation Scheme Bandwidth WMF-R13 Manufacturer: Mitsumi Elec. 307.9MHz Crystal resonator FM (Single Superheterodyne) ±200KHz Dimension Weigh Battery Operation Voltage,Current Operation Temperature 113mm x 99.4mm x 30mm 172.5g Car Battery(DC 12V) DC12V,50mA(4mA on standby) -30+80
- 5 -5.Features 5.1 Door lock controlThe LOCK relay in the receiver drives the door lock actuators to "LOCK"-side when LOCK button of transmitter was pressed.The UNLOCK relay in the receiver drives the door lock actuators to "UNLOCK"-side when UNLOCK button of transmitterwas pressed. These facility doesn't work if the key is inserted the key clinder or the door is open. 5.2 Battery savingBecause of the power source of the receiver is car Battery, it is very important problem to minimize a power consumption. Thereceiver's CPU works intermittently to prevent the battery exhaustion.6.DerivativesOKA-200R is an integrated controller for a car body control, includes the keyless entry receiver. The integrated controller consists ofthe multiple control functions as follows, centralised door lock,turn-signal lamp, room-lamp, intermitted wiper, power window timer,ignition key illumination, autolight, warning buzzer and so on.INFORMATION TO THE USERThis equipment has been tested and found to comply with the limits for a Class B digital device, pursuant topart 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmfulinterference in a residential installation. This equipment generates, uses and can radiate radio frequencyenergy and, if not installed and used in accordance with the instructions, may cause harmful interference toradio communications. However, there is no guarantee that interference will not occur in a particularinstallation. If this equipment does cause harmful interference to radio or television reception, which can bedetermined by turning the equipment off and on, the user is encouraged to try to correct the interference byone more of the following measures:Reorient or relocate the receiving antenna.Increase the separation between the equipment and receiver.Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.Consult the dealer or an experienced radio/TV technician for help.WARNINGChanges or modifications not expressly approved by the manufacturer could void the user’s authority to operate theequipment.

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