OMRON AUTOMOTIVE ELECTRONICS KOREA OKA - 220R RECEIVER, RF Keyless Entry System
Table of contents 1. Constitution of the Radio Frequency Keyless Entry system Controller for vehicle ------ 1 2. User's manual (provisionally) ----------------------------------------------------------------------- 2 3. Block diagram ------------------------------------------------------------------------------------------ 3 4. Specification -------------------------------------------------------------------------------------------- 4 5.
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 and open the trunk 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.
2. User's manual (provisionally) REMOTE TRANSMITTER You 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.
3. Block diagram This is the block diagram concerning to the receiver. figure 3.
4. Specification 4.1 CPU Type MB89637(8bit) Manufacturer : Fujitsu ROM 32K x 8bit RAM 1K x 8bit Clock frequency 10MHz Clock frequency generation Crystal resonator Package 64pin QFP 4.2 EEPROM Type S-29131 Manufacturer: Seiko. Elec Memory 1Kbit Package 8pin SOP 4.3 RF Receiver Module Type WMF-R13 Manufacturer: Mitsumi Elec. Local clock frequency 307.9MHz Frequency generation Crystal resonator Modulation Scheme FM (Single Superheterodyne) Bandwidth ±200KHz 4.
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.
