Ltech LT-DMX-3001 Manual Download Page 1

1

LT-DMX-3001

DMX-SPI Signal Decoder

 

Manual

LT- DMX-3001

1.  Product parameter

Input voltage

Input Signal

Output signal

Decoding Channels

Output Grey Scale

DMX512 Connector

Product Dimension

Package Size

Working temperature

Weight (G.W)

DC12V~DC24V

DMX512/1990

SPI(compatible with TLS3001, TLS3002, driving IC)

512 DMX CH/unit

256 levels/CH(8bit/CH)

Standard XLR-3 Connector

L125×W52×H40mm

L135×W70×H50mm

-30

  

~65

300g

LT-DMX-3001 DMX decoder works to convert universal DMX512 signal to SPI(TTL) 
signal. It can control LED lights based on Tm1803, TM1804, Tm3001, TM1812 via DMX 
console.
Tm1803, TM1804, TM3001 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-DMX-3001 DMX 
decoder runs steady.

RoHS

COMPLIANT

warranty

3 years

ISO9001:2008

ZHUHAI LTECH ELECTRONIC TECHNOLOGY CO.,  LTD.

WWW.LTECHONLINE.COM 

[email protected] 

Tel: +86 756 620 8823

Fax: +86 756 620 8833

LT- DMX-3001 DMX512 Decoder Manual         

LT- DMX-3001 DMX512 Decoder Manual         

LTECH

LTECH

2

The Port of connecting 

Power supply & LED light

2.   Configuration Diagram

1 2 3 4 5 6 7 8 9 10

ON

DIP

DMX signal input port

D

A

T

A

D

C

+

MODEL: LT-DMX-1

DMX512

 

DECODER

DC5V-DC24V
512 CHANNEL

G

N

D

3.     

Output Port definition

No.

Silk screen

Function

1

2

3

4

5

6

Power supply 

input port

Output port

Connect LED

LED power supply input anode

LED power supply input cathode

Data cable

Ground wire (power supply cathode), 2 GND ports, 
Only connecting 1 GND is OK.

DC+

DC-

DATA

GND

DC+

GND

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

Figure 1

1 2 3 4 5 6 7 8 9 10

ON

0

1

OFF

ON

1, Set DMX512 original address

1

2

3

5

6

7

8

10

4

001

002

004

008

016

032

064

128

256

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.

Instructions

DIP

Address

LED power supply output anode

G

N

D

M1804, TM3001 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.

high/
low speed

9

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)

4

1 2 3 4 5 6 7 8 9 10

ON

0

1

OFF

ON

Figure 2

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