Ltech LT-DMX-1809 Manual

LTECH
LT-DMX-1809
DMX-SPI Signal Decoder Manual
ISO9001:2008
LT-DMX-1809 DMX decoder works to convert universal DMX512 signal to SPI(TTL)
signal. It can control LED lights based on Tm1803, TM1804, Tm1809, TM1812 via DMX
console.
Tm1803, TM1804, TM1809 and TM1812 are the IC with grey scale processor. It can
support 256 scale levels and only need one signal cable, which convenient for design and
installation for the LED lights. These 4 chips are widely used in LED digital lights among
LED dot light, SMD strip, LED Fence tubes, LED wall light, LED pixel screen, LED Hi-
Power spotlight , flood light, etc.
The kernel of our LED controller adopt MCU from ATMEL to ensure the LT-1809 DMX
decoder runs steady.
1. Product parameter
LT- 1809
Input voltage
DC12V~DC24V
Input Signal DMX512/1990
SPI(compatible with TM1803,TM1804,TM1809,
Output signal
TM1812 LED driving IC)
Decoding Channels
512 channels/unit
Output Grey Scale
256 grey scales
DMX512 Connector Standard XLR-3 Connector
Product Dimension
L125×W52×H40mm
Package Size L135×W70×H50mm
Working temperature
-30 ~65
Weight (G.W) 300g
ZHUHAI LTECH ELECTRONIC TECHNOLOGY CO., LTD.
LT- 1809 DMX512 Decoder Manual
RoHS warranty
3 years
COMPLIANT
℃ ℃
1
Tel: +86 756 620 8823
LTECH
2. Configuration Diagram
1 2 3 4 5 6 7 8 9 10
DIP ON
DMX signal input port
3. Output Port definition
No. Silk screen
1 DC+
Power supply
input port
2 DC-
3 DC+
4
GND
Output port
Connect LED
5
GND
6 DATA
Attention: The power supply DC+ cannot connect to data cable. Otherwise it will
damage the decoder and the LED's driving IC.
4. How to set DMX address via dip switch
1. Set DMX512 original address
0 OFF
Figure 1
1 2 3 4 5 6 7 8 9 10
1 ON
ON
M1804, TM1809 and TM1812IC can choose high or low speed when used in LED
design circuit. TM1803 only can choose low speed. Designed in low speed will get
high PWM frequency and designed in high speed can control more LED lights. The
high or low speed choosing of the decoder needs to match the light's design gears.
Otherwise the LED light can not work. The general LED lights are designed in low-
speed mainly.
The Decoder enter into DMX control mode automatically., when receiving DMX signal.
Like figure 1: Fun=off is high speed(upward), FUN=ON is low speed (downward)
DIP 1
2 3 4
001 002 004 008
Address
Instructions
1.This decoder adopts Dip switch to set the address. The Dip switches from 1 to 9 are a kind of binary
value coding switches which used for setting DMX512 initial address code, The 1st is the lowest one, The
9th is the highest one. Can set 511 addresses totally.
2.DMX512 initial address is the total amount of the Dip switch 1-9, down dip switch to "ON" position, User
can get its place value, Up dip switch to "OFF" position, Its place value is 0.
Fax: +86 756 620 8833
LT@LTECHONLINE.COM
LT- 1809 DMX512 Decoder Manual
DMX512 DECODER
MODEL: LT-1809
DC5V-DC24V
512 CHANNEL
The Port of connecting
Power supply & LED light
Function
LED power supply input anode
LED power supply input cathode
LED power supply output anode
Ground wire (power supply cathode), 2 GND ports,
Only connecting 1 GND is OK.
Data cable
0 OFF
Figure 2
1 2 3 4 5 6 7 8 9 10
1 ON
ON 4
5 6 7 8 9
high/
016 032 064 128 256
low speed
2
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