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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 vehicle 

door and anti-theft protection using wireless remote controller. This system consists of two 

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 intermitt 

ently 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

 

Vehicle is disarming will be start sounding the horn and flushing the hazard lamp intermittently

 

 

 

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Summary of Contents for G8D-584M-B1

Page 1: ...G8D 584M B1 Receiver RF Keyless Entry System ...

Page 2: ...que identification code security code and function code The RECEIVER is fixed inside the vehicle It works intermitt ently 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...

Page 3: ...f 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 buttons open the trunk PANIC anti theft protection When you push the PANIC button when the vehicle disarming Then start sounding the horn and flushing the hazard lamp intermittently It continues 3 minutes unless pressing any remote control switch CAUTION The remote control...

Page 4: ...RLOCK CONTROLER Signal of vehicle status input output 12V car battery 5MHz 313 85MHz EEPROM DRIVE CIRCUIT figure 3 1 block diagram of the receiver ANT COMPA RATOR LOW Freq AMP LOCAL OSC LP FILTER RF OSC RF AMP BP FILTER CPU figure 3 2 block diagram receiver Circuit 3 ...

Page 5: ...Type S 93C46ADFJ Manufacturer Seiko Elec Memory 1kbit Package 8pin SOP 4 3 RF Receiver Module Type G8D 21RX Manufacturer IAM Elec Local clock frequency 313 85MHz Frequency generation Crystal resonator Modulation Scheme FM Carrier Detect Sensitivity 5dBuVemf 4 3 Others Dimension 60mm 62mm 25mm Weight 45g Battery Car Battery DC 12V Operation Voltage Current DC 12V 10mA Operation temperature 30 80 4 ...

Page 6: ...ftware The normal transmission operation of the receiver is conducted by a battery which is installed within a vehicle For the measurements purpose a regulated DC power supply is used instead the battery of the vehicle The reception of the receiver was conducted by operating intermittently a transmitter with the lock condition There is no difference between the lock and unlock condition regarding ...

Page 7: ...ed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction may cause harmful interference to radio communications However there is no guarantee that interference will not occur in particular installation If this equipment dose cau...

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