Omron Automotive Electronics Korea OKA-950T RF Keyless Entry System (Transmitter) User Manual OKA 950T US
Omron Automotive Electronics Korea Co., Ltd. RF Keyless Entry System (Transmitter) OKA 950T US
User manual
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 lock the door
UNLOCK unlock the door
TRUNK unlock the TRUNK
PANIC alarm the horn
Transmitter
f = 313.85MHz
2. User's manual (provisionally)
REMOTE TRANSMITTER
You can lock and unlock
y
our 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.
PANIC
When you push the PANIC button, horn will alarm.
TRUNK
When you push the TRUNK button, trunk will open.
OKA-
950T
LOCK
UNLOCK
PANIC
(후면)
TRUNK
4. Specification
4.1 CPU
Type uPD789860-xxx(8bit)
Manufacturer : NEC Corporation
ROM 4 Kbytes
RAM 128 bytes
EEPROM 32 bytes
Clock frequency 4.19MHz
Clock frequency generation X-TAL OSCILATION
Package 20pin SSOP
4.2 RF block
Carrer frequency 313.85MHz
Frequency generation X-TAL
Modulation FSK
Bit transmission rate 500bps or 1000bps
Bandwidth 120KHz
RF out
p
ut
p
ower (field stren
g
th
)
≤ 75.6dBuV/m
4.3 Others
Dimension 62mm×34mm×15mm
Weigh 23g
Battery Lithium cell (CR2032)
Manufacturer : PANASONIC Battery corporation etc.
Operation Voltage DC3V
Operation Temperature -20℃∼+60℃
This device complies with part 15 of the FCC Rules and IC RSS-GEN. Operation is subject to the following
two conditions
: (1) This device may not cause harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
You are cautioned that changes or modifications not expressly approved by the party responsible
for compliance could void your authority to operate the equipment.