Omron Automotive Electronics Korea OKA-230T Remote Keyless Entry System User Manual OKA 230T user s manual

Download:
Mirror Download [FCC.gov]
Document ID	482936
Application ID	rHWHmVlSRWbOa1eM4hkbhw==
Document Description	User Manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	14.89kB (186149 bits)
Date Submitted	2004-10-28 00:00:00
Date Available	2004-10-28 00:00:00
Creation Date	2004-10-15 16:39:46
Producing Software	Acrobat PDFWriter 4.05 Windows NT¿ë
Document Lastmod	2004-10-27 16:56:57
Document Title	OKA - 230T - user's manual.PDF
Document Creator	OKA - 230T - user's manual.hwp [C:\Documents and Settings\james_kwon\My Documents\업체 정보 ㄱ-z\ㅅ\SGS-서울-경기지사\한국오므론전장\3모델 변경신고\] - 한글
Document Author:	james_kwon

OMRON
AUTOMOTIVE
ELECTRONICS
KOREA
OKA-230T
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 remotecontroller. This system consists oftwocomponents.The TRANSMITTER i s a d e v i c e
that transmits the signalwhenthebuttonispressed.
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
synchronouscode,itrunscontinuouslyto receive the signals completely. Afterreceiving 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
Transmitter
f = 307.9MHz
- 2 -
2. Operation description
REMOTE TRANSMITTER
LED
TRUNK
UNLOCK
LOCK
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.
- 3 -
3. Specification
3.1 CPU
Type
uPD754144-xxx(4bit)
Manufacturer : NEC Corporation
ROM
4096 X 8bit(4 Kbytes)
RAM
128 X 4bit(64 bytes)
EEPROM
16 X 8bit(16 bytes)
Clock frequency
500KHZ
Clock frequency generation
CR Osillation
Package
20pin SSOP
3.2 RF block
Carrer frequency
307.9MHz
Frequency generation
SAW resonator
Modulation
FSK
Bit transmission rate
1000bps or 500bps
Bandwidth
120KHz
RF output power (field strength)
≤ 75.6 dBμV/m
3.3 Others
Dimension
56mm×35mm×11mm
Weigh
21.65g
Battery
Lithium cell (CR2032)
Manufacturer : PANASONIC Battery corporation etc.
Operation Voltage
DC3V
Operation Temperature
-20℃˜+60℃
- 4 -
4.Features
4.1 Transmission frame
The transmission begins immediately in case of LOCK and UNLOCK button is pressed, but TRUNK button
is begun after 0.5s.
The transmission frame consists of the synchronous frame and the data frame. The synchronous frame
has 30 synchronous codes that it will be used for the receiver to wake up. The data frame consists of
24bit length identificationcode,16bit security code and function code. 16million different identification codes
are available.
The security code is always changed in case of any of the buttons is pressed. The transmission time is
typically 600 milliseconds.
4.2
Battery saving
To prevent thebattery exhaustion , the micro-computer of the transmitter is usually inactive. When the button
will be pressed, the micro-computer wakes up immediately and judges which button is pressing. Then the
micro-computerconstructs the transmission frame and radiates it from the antenna .Aftertransmitting , the
micro-computer switches stand-by mode by itself.
- 5 -

---

Source Exif Data:

File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.3
Linearized                      : No
Creator                         : OKA - 230T - user's manual.hwp [C:\Documents and Settings\james_kwon\My Documents\업체 정보 ㄱ-z\ㅅ\SGS-서울-경기지사\한국오므론전장\3모델 변경신고\] - 한글
Create Date                     : 2004:10:15 16:39:46
Title                           : OKA - 230T - user's manual.PDF
Author                          : james_kwon
Producer                        : Acrobat PDFWriter 4.05 Windows NT¿ë
Modify Date                     : 2004:10:27 16:56:57+09:00
Page Count                      : 6

EXIF Metadata provided by EXIF.tools