Ltech DMX512 Manuel d'instructions

8 bit / 16 bit

2 kinds of DMX interfaces

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LT-903

CHANNELS

Photoelectric

isolation

Short circuit /overheat / over current protection

006

8. Available in 16bit (65536 levels) and 8bit (256 levels).

4. With RDM remote management protocol, the operations can be completed via the

RDM master console, such as parameters browsing & setting, DMX address setting,

equipment recognition, etc.

2. Easy operation with digital display and the touch buttons.

1. Designed with 3 channels output, maximum 8A current per channel, and up to 576W

output power.

Short circuit

protection

RDM Over current

protection

Overheat

protection

faults occur.

With short circuit / overheat / over current protection, as well as warning function when

3. 3-pin XLR, RJ45 DMX interface with photoelectric isolation, improve signal

transmission efficiency and anti-interference ability.

5-year

warranty

6. With fast self-testing function.

7. Available in high and low PWM frequency.

Product introduction

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RJ45

3-pin XLR Photoelectric

isolation

E500585

Technical specs

Unit: mm

LT-903

DMX512/RDM

3-pin XLR, RJ45

× 3CH Max. 576W

12 24Vdc

8A 3CH Max. 24A

(0~96W...192W)

8bit (256 levels) / 16bit (65536 levels)

Protection:

Working temp.:

Dimensions (L×W×H)

Package size(L×W×H)

Weight (G.W.)

Model

Input signal

Input voltage

Current load

DMX interfaces:

Output power:

Grey levels

Short circuit / overheat / Over current protection,

recover automatically.

-30°C~65°C

122×110×37mm

127×123×41mm

550g

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Photoelectric isolation: Yes

110

122

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Main component descriptions

Power

indicator

Signal

indicator

12-24Vdc

input voltage

LED lamps

connection

Digital

display

Dip

switch

Dip switch

RJ45

3-pin XLR

DMX/RDM

input & output

DMX/RDM

input & output

Digital display will enter the locked mode

without operating after 15 seconds.

Long press “M” key to unlock.

Short press “M” key to switch numbers.

Press “ ””v” key to adjust value.

006

Digital display

Screen

High Smooth

Low Standard

30S off

Enable

PWM Hz DIM

Bit

888

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DMX

RDM

DMX

RDM

Wiring diagram

1 Connecting LED lights:

Signal Signal

LED

driver

12-24Vdc

RGB LED

LT-903

V+

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DMX

console

2. DMX console onnectionc :

DMX signal

12-24Vdc 12-24Vdc

An amplifier is needed if more than 32 decoders are connected ,

signal amplification should not be more than 5 times continuously.

or use overlong signal line

If the recoil effect occurs because of longer signal line or bad line quality, please try to

connect 0.25W 90-120Ω terminal resistor at the end of each line.

DMX signal

LT-9 03 LT-90 3

PUSH

DMX signal

12-24Vdc

Resistor

terminal

LT-903 is equipped with 2 kinds DMX

terminals for users’ selection. The following

diagram takes 3-pin XLR as an example,

the same connecting method for Rj45.

LT-9 03

GND

DATA+

DATA-

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These 2 terminals can be connected in a mixed way.

Rj45 connected in parallel

3-pin XLR connected in parallel

Terminal

resistor

Terminal

resistor

3. The connection diagram of 2 kinds of DMX/RDM terminals:

Installation Attentions : Please reserve enough ventilation distance between decoders ( no less

than 20mm). Be sure not to block the vent, or it may affect the lifetime of decoders for poor

heat dissipation.

Installation distance > 20mm

Vent

LT-9 03 LT-903 LT-9 03

Update Time: 31/08/2020_A2

This manual is subject to changes without further notice.

Product feel free to contact our official distributors if you have any question.

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