Daesung HM-TX-315 User manual

DAESUNG ELECTRIC CO., LTD.
8-27B/L, 743-5, Wonsi-Dong, Danwon-Ku, Ansan-Si, Kyunggi-Do, 425-090, Korea
TEL : [phone] / FAX : [phone]
http://www.dsec.do.kr/
1
TX ASSY-KEYLESS ENTRY / RX ASSY-KEYLESS ENTRY
User’s Manual
TX Model: HM-TX-315
RX Model: RX_BOARD 315

DAESUNG ELECTRIC CO., LTD.
8-27B/L, 743-5, Wonsi-Dong, Danwon-Ku, Ansan-Si, Kyunggi-Do, 425-090, Korea
TEL : [phone] / FAX : [phone]
http://www.dsec.do.kr/
2
Table of contents
1. Constitution of the Radio Frequency Keyless Entry system Controller
for vehicle ........................................................................ 3
2. User's manual ........................................................................ 4
3. Block Diagram .................................................................................... 5
3.1 Transmitter ........................................................................ 5
3.2 Receiver ........................................................................ 6
4. Specification .................................................................................... 7
4.1 Transmitter ........................................................................ 7
4.2 RF Receiver module ............................................................ 7
4.3 Other .................................................................................... 7
5. Data structures .................................................................................... 8
6. Homologation ................................................................................................ 9

DAESUNG ELECTRIC CO., LTD.
8-27B/L, 743-5, Wonsi-Dong, Danwon-Ku, Ansan-Si, Kyunggi-Do, 425-090, Korea
TEL : [phone] / FAX : [phone]
http://www.dsec.do.kr/
3
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 doors. It
can open and close sliding doors and tail gate automatically. It can notice us where the car is by
panic button.
The TRANSMITTER is a device that transmits the signal when the button is pressed. The
transmission signal consists of preamble, header, random, key data, sync, c/s, and inter frame code.
The RECEIVER is fixed inside of the vehicle. It works intermittently to prevent the battery
exhaustion. When the receiver detects the preamble 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.
CAUTION
"RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE.
DISPOSE OF USED BATTERIES ACCORDING TO THE NATIONAL CODE OR RECYCLING PROGRAM."

DAESUNG ELECTRIC CO., LTD.
8-27B/L, 743-5, Wonsi-Dong, Danwon-Ku, Ansan-Si, Kyunggi-Do, 425-090, Korea
TEL : [phone] / FAX : [phone]
http://www.dsec.do.kr/
4
2. User's manual
Key Mark Operation Function Model
CENTRAL LOCK
Horning for 30mS
Lock key is pressed
Lighting turn lamp for 1 second
Lock
Lock key is pressed for
0.5 seconds Closing window of driver’s seat
CENTRAL UNLOCK
Unlock key is pressed
Blinking turn lamp twice for 1 second
Unlock
Unlock key is pressed for
0.5 seconds Opening window of driver’s seat
To stop horning by pressing the panic
key
Horning for 27 seconds
Panic Panic key is pressed
Blinking turn lamp for 27 seconds
Opening or closing tailgate
Tail
Gate
Tailgate key is pressed for
0.5 seconds Blinking turn lamps 5 times

DAESUNG ELECTRIC CO., LTD.
8-27B/L, 743-5, Wonsi-Dong, Danwon-Ku, Ansan-Si, Kyunggi-Do, 425-090, Korea
TEL : [phone] / FAX : [phone]
http://www.dsec.do.kr/
5
3. Block diagram
3.1 Transmitter

DAESUNG ELECTRIC CO., LTD.
8-27B/L, 743-5, Wonsi-Dong, Danwon-Ku, Ansan-Si, Kyunggi-Do, 425-090, Korea
TEL : [phone] / FAX : [phone]
http://www.dsec.do.kr/
6
3.2 Receiver

DAESUNG ELECTRIC CO., LTD.
8-27B/L, 743-5, Wonsi-Dong, Danwon-Ku, Ansan-Si, Kyunggi-Do, 425-090, Korea
TEL : [phone] / FAX : [phone]
http://www.dsec.do.kr/
7
4. Specification
4.1 Transmitter
Type PIC16F676 (Manufacturer : MICROCHIP)
RFIC TH72001 (Manufacturer : Melexis)
Memory 2K × 8bit
Clock frequency 4.00MHz
Clock frequency generation INTERNAL
Package 14pin TSSOP
Carrier frequency 315 MHz
Frequency generation Crystal
Modulation FSK
Bandwidth ≤ 100 kHz
RF output power ≤ 75dBuV/m
4.2 RF Receiver module
Local clock frequency 315 MHz
Frequency generation Crystal
Modulation Scheme FM (Single Superheterodyne)
Bandwidth ±100KHz
RFIC TH71102
Manufacturer : Melexis
4.3 Others
Item Transmitter Receiver
Dimension 6.8 x 3.7 x 1.1 (cm) 20 x 16 x 7 (cm)
Weigh 24.5g
Battery LITHIUM Coin Type(DC 3V) Car Battery(DC 12V)
Operation Temperature -30℃ ~ +80℃

DAESUNG ELECTRIC CO., LTD.
8-27B/L, 743-5, Wonsi-Dong, Danwon-Ku, Ansan-Si, Kyunggi-Do, 425-090, Korea
TEL : [phone] / FAX : [phone]
http://www.dsec.do.kr/
8
5. DATA structures

DAESUNG ELECTRIC CO., LTD.
8-27B/L, 743-5, Wonsi-Dong, Danwon-Ku, Ansan-Si, Kyunggi-Do, 425-090, Korea
TEL : [phone] / FAX : [phone]
http://www.dsec.do.kr/
9
6. Homologation
FCC Compliance Statement.
This device complies with part 15 of the FCC Rules.
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
interferencethat may cause undesired operation.
Do Not
Any changes or modifications to the equipment not expressly
approved by the party responsible for compliance could void
user’s authority to operate the equipment.