Ltech LT-DMX-1809 User Manual

LT-DMX-1809 DMX-SPI Signal Decoder LT-DMX-1809 DMX-SPI Signal Decoder

LT-DMX-1809

DMX-SPI Signal Decoder

warranty

5 years

LT-DMX-1809 converts the universal standard DMX512 signal into SPI(TTL) digital signal to drive LEDs
compatible driving IC, it could control every channel of the LED lights, realize 0~100% dimming or editing
all sorts of changing effect.

DMX-SPI decoder are widely used in LED flashing word string light, LED dot light, SMD strip, LED digital
tubes, LED wall light, LED pixel screen, Hi-power spotlight, flood light, etc.

1. Product Parameter:

LT-DMX-1809

Input Signal:

Input Voltage:

Output Signal:

Decoding Channels:

DMX512 Socket:

Compatible with WS2811/WS2812/WS2812B, UCS1903/UCS1909/UCS1912/UCS2903/UCS2909/UCS2912 TM1803/

TM1804/TM1809/1812/ driving IC.GS8206(BGR)/SM16703

Note: grey level from best or worst depend on the IC types, it is nothing with the LT-DMX-1809 decoder performance.

DMX512

5~24Vdc

SPI

512 Channels/Unit

3-pin XLR, Green Terminal

Dimming Range: 0~100%

Working Temperature: -30℃~65℃

Dimensions: L125×W64×H40(mm)

Package Size: L135×W70×H50(mm)

Weight (G.W.): 300g

2. Configuration Diagram:

64mm

A

DMX IN DMX OUT

DAT

CLK

GND

DC+

40mm

125mm

Power Input / Signal output

Terminal

A B

Green Block

(DMX Terminal)

1 2 3 4 5 6 7 8 9 10

Address

Dip Switch

1 2

3

ONDIP

DMX IN DMX OUT

115mm

3-pin XLR

(DMX Terminal)

12

3

1

with

3. Output Port Definition:

Input Port

Port

DC+

DC-

DC+

DATA

CLK
GND

5-24V LED power supply inputdc

LED power supply output anode
Data cable
Clock cable (N/A)
Ground (DC-)cable

No.

Power Supply

1

Output Port

2

Connect LED

Dip Switch Operation:

4.

0

1

2

3

4

5

6

7

8

9

10

ON

1

4

4.1 How to set DMX address via dip switch:

FUN=OFF (the 10th ) Modedip switch=OFF DMX

The Decoder enter into DMX control mode automatically when receiving DMX signal.
Like figure upward: FUN=OFF is high speed(upward), FUN=ON is low speed (downward)

1. The driving chip of this decoder has option for high and low speed(800K/400K), please choose the
suitable speed according to the design of your LED lights, in most cases, it is high speed.

2. DMX address value = the total value of (1-9), to get the place value when in “on” position, otherwise
will be 0.

E.g.1: Set Initial Address To 32. E.g.2: Set Initial Address To 37.

OFF

1

2

3

4

5

6

7

8

9

ON

10

4.2 Self-testing Mode:

When no DMX signal, Self-testing Mode

Static
Black

1=on

Static

Red

Dip Switch

Self-test
Function

1-9=off

1

2

3

4

ON

5

ON

001+004+03 2=37

4=on 7=on

3=on 6=on

Static

Static

Blue

Static

Yellow

Green

6

7

8

OFF

4

3

2

1

Static

Static

Green

Static

Red

Yellow

Static

Static

Blue

[Attn] When several dip switches are ON, subjected to the highest switch value.

As the figure above shows, the effect will be 7 colors smooth at 7 speed level.

Purple

7

8

7 Colors
Jumping

7 Colors

9

Smooth

10

ON

6

5

Static

Cyan

Static

White

2

Function

OFF

ON

Valu e

E.g.3: Set Initial Address To 178.

OFF

1

2

3

4

5

6

9

10

ON

ON

002+016+03 2+128 =178

5=on

Static

Static

Cyan

Static
White

Purple

For changing effects (Dip Switch 8 9=ON): /
DIP switch 1-7 is used to realize 7 speed
levels. (7=ON, the fastest level)

7

8=on 9=on2=on

7 Colors
Jumping

www. ltech -led.com

8

9

10

7 Colors

Smooth

OFF

ON

LT-DMX-1809 DMX-SPI Signal Decoder LT-DMX-1809 DMX-SPI Signal Decoder

5. Wiring Diagram:

5.1 LED pixel strip wiring diagram.

A. Conventional connection method.

A
T

DMX IN DMX OUT

DA

CLK

GND

DC+

dc

12V

Power supply

A B

GND

DA

+

R

G

G

B. Special connection method - light fixtures and controller using different operating voltages.

A

DMX IN DMX OUT

DAT

CLK

GND

DC+

5-24V

dc

Power supply

GND

DA

+

GND

36V

dc

Power supply

A B

R

G

G

+

5.2 DMX wiring diagram.

12V

dc 12V

Power supply

GND

+

R

G

G

5M

36V

dc

Power supply

GND GND

+ +

R

G

G

5M

Power supply

R

R

G

G

G

G

5M

Power supply

R

R

G

G

G

G

5M

DMX Signal Input

dc

GND

+

R

Pixel Strip

R

G

G

G

G

5M

36V

dc

R

Pixel Strip

R

G

G

G

G

5M

6. Attention:

6.1 The product shall be installed and serviced by the qualified person.

6.2 This product is non-waterproof. Please avoid the sun and rain. When installed outdoors please ensure it is
mounted in a water proof enclosure.

6.3 Good heat dissipation will prolong the working life of the controller. Please ensure good ventilation.

6.4 Please check if the output voltage of the LED power supply used comply with the working voltage of the
product.

6.5 Please ensure that adequate sized cable is used from the controller to the LED lights to carry the
current. Please also ensure that the cable is secured tightly in the connector.

6.6 Ensure all wire connections and polarities are correct before applying power to avoid any damages to the
LED lights.

6.7 If a fault occurs, please return the product to your supplier. Do not attempt to fix this product by yourself.

7. Warranty Agreement:

7.1 We provide lifelong technical assistance with this product:

A 5-year warranty is given from the date of purchase. The warranty is for free repair or replacement if
cover manufacturing faults only.

For faults beyond the 5-year warranty, we reserve the right to charge for time and parts.

7.2 Warranty exclusions below:

Any man-made damages caused from improper operation, or connecting to excess voltage and

overloading.

The product appears to have excessive physical damage.

Damage due to natural disasters and force majeure.

Warranty label, fragile label and unique barcode label have been damaged.

The product has been replaced by a brand new product.

ower Supply

P

Adaptor

AC Adapter

Model no.

Input : 100-240V-1.5A
Output : DC12V---5A

Warning: INDOOR USE ONLY

An amplifier is needed when more than 32 decoders are connected, signal amplification should not be more

*

DMX IN

DMX OUT

10

9

8
7

LT-DMX-1809

A

T

DC+

DA

CLK

GND

IN

+VC

GND

12Vdc

RI

750

SPI(TTL)

B

R

511

Signal Output

R

471

G

471

471

R

511

471

RS

104

682

R

511

471

471

OUT

GND

IN

+VC

GND

RI

750

Pixel Strip Pixel Strip Pixel Strip

B

R

511

R

471

G

471

471

R

511

471

RS

104

682

R

511

471

471

OUT

GND

ower Supply

P

Adaptor

ON

6

5

4

3

2

1

AC Adapter

Model no.

Input : 100-240V-1.5A
Output : DC12V---5A

Warning: INDOOR USE ONLY

12Vdc

DMX IN

DMX OUT

LT-DMX-1809

A
DC+

DAT

CLK

GND

IN

+VC

GND

RI

750

SPI(TTL)

B

R

511

Signal Output

R

471

G

471

471

R

511

471

RS

104

682

R

511

471

471

OUT

GND

IN

+VC

GND

RI

750

B

R

511

R

471

G

471

471

R

511

471

RS

104

682

R

511

471

471

OUT

GND

10

9

8

7

ower Supply

P

Adaptor

ON

6

5

4

3

2

1

AC Adapter

Model no.

Input : 100-240V-1.5A
Output : DC12V---5A

Warning: INDOOR USE ONLY

12Vdc

DMX IN

DMX OUT

LT-DMX-1809

TA

DC+

DA

CLK

GND

IN

+VC

GND

RI

750

SPI(TTL)

B

R

511

Signal Output

R

471

G

471

471

R

511

471

RS

104

682

R

511

471

471

OUT

GND

IN

+VC

GND

RI

750

B

R

511

R

471

G

471

471

R

511

471

RS

104

682

R

511

471

471

OUT

GND

10

9

8

than 5 times continuously.

3

7.3 Repair or replacement as provided under this warranty is the exclusive remedy to the customer. We

ON

7

6

5

4

3

2

1

shall not be liable for any incidental or consequential damages for breach of any stipulation in this
warranty.

7.4 Any amendment or adjustment to this warranty must be approved in writing by our company only.

★This manual only applies to this model. We reserve the right to make changes without prior notice.

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4

Update Time: 2020.05.22_A3