Omron Automotive Electronics Korea OKA 225T User Manual

OMRON AUTOMOTIVE

ELECTRONICS KOREA

OKA-220T

Transmitter, RF Keyless Entry System

1. Constitution of the Radio Frequency Keyless Entry System for vehicle

The radio frequency keyless entry is a system that it controls locking and unlocking the door and 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.

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 selectthe following operations by pressing the button of the remote

transmitter.

OPERATION ACTION

LOCK

UNLOCK

TRUNK

Lock the Door

Unlock the Door

Open the Trunk

Transmitter

f = 307.9MHz