Omron Automotive Electronics Korea OKA-351R RF Keyless Entry System (Receiver) User Manual HD FCC IC change RF module

Omron Automotive Electronics Korea Co., Ltd. RF Keyless Entry System (Receiver) HD FCC IC change RF module

Users Manual

- 1 - OMRON AUTOMOTIVE ELECTRONICS KOREA OKA - 351R RECEIVER, RF Keyless Entry System
- 2 - Table of contents 1. Constitution of the Radio Frequency Keyless Entry system Controller for vehicle ................................................................................................................. 1 2. General Operation ........................................................................ 2 3. Block diagram ........................................................................................................... 3 4. Specification ............................................................................................................... 4 5. Features ...................................................................................................................... 5 Caution: Any changes or modifications to the equipment not expressly approved by the party responsible for compliance could void user's authority to operate the equipment.
- 3 - 1. Constitution of the Radio Frequency Keyless Entry System for vehicle The radio frequency keyless entry is a system that it controllers locking and unlocking the door by wireless remote controller. This system consists of three components. The TRANSMITTER is a device that transmits the signal when the button is pressed. The transmission signal consists of several synchronous codes, unique identification code , security code and function code. The RECEIVER is fixed inside the vehicle. It works intermittently to prevent the battery exhaustion. When the receiver detects the synchronous code , it runs continuously to receive the signals completely. After receiving the signal, the receiver decides which operation will be performed. The user can select the following operations by pressing the button of the remote transmitter. OPERATION ACTION LOCK lock the door UNLOCK unlock the door TRUNK open the trunk PANIC alarm the siren Transmitter f = 313.85MHz
- 4 -2. General Operation REMOTE TRANSMITTER LOCKUNLOCKTRUNKLOCKUNLOCKTRUNK PANICPANIC You can lock and unlock 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 continuously the TRUNK button during 0.5s, TRUNK will open.PANIC When you push the PANIC button, Siren will alarm.
- 5 - 3. Block diagram This is the block diagram concerning to the receiver. POWER 12V(car battery) SOURCE(5V) RECEIVING data MODULE EEPROM 16BIT CPU input output DRIVING DOORLOCK CIRCUIT ACTUATOR 4MHz Signal of vehicle status figure 3.1 block diagram of the transmitter
- 6 - 4. Specification4.1 CPU Type ROM RAM Clock frequency Clock frequency generation Package MB90F867(16bit) Manufacturer : FUJITSU 128KByte 6KByte 4MHz Crystal resonator 100pin QFP4.2 EEPROM Type Memory Package S-93C56XXX Manufacturer: Seiko. Elec 2Kbit 8pin SOP4.3 RF Receiver Module Type Local clock frequency Frequency generation Modulation Scheme Bandwidth Carrier Detect Sensitivity WMF-R31 Manufacturer: MITSUMI Electronics 313.85MHz Crystal resonator FM (Single Superheterodyne) ±200KHz 11dBuVemf 4.4 Others Dimension Weigh Battery Operation Voltage,Current Operation Temperature 150mm×100mm×34mm 262g (Antenna included) CAR Battery(DC 12V) DC12V,60mA(4mA on standby) -30℃˜+80℃
- 7 -5. Features 5.1 Door lock control The 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 transmitter was pressed. These facility doesn't work if the key is inserted the key clinder or the door is open. 5.2 Battery saving Because of the power source of the receiver is car Battery, it is very important problem to minimize a power consumption. The receiver's CPU works intermittently to prevent the battery exhaustion. 6. Derivatives OKA-351R is an integrated controller for a car body control, includes the keyless entry receiver. The integrated. controller consists of the multiple control functions as follows, centralized door lock, turn-signal lamp, room-lamp, intermitted wiper, power window timer, ignition key illumination, warning buzzer and so on.

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