Ltech LT-904 Manual de usuario

LT-904

8 bit / 16 bit

CHANNELS

2 kinds of DMX interfaces

www.ltech-led.com

Short circuit / Over current / Overheat protection

Photoelectric

isolation

E5 00585

006

8. 16bit (65536 levels) / 8bit (256 levels) grey level avaliable.

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

1. Designed with 4 channels output, and Max. 6A current per channel, up to 576W output

power.

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

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

equipment recognition, etc.

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

transmission efficiency and anti-interference ability.

Short circuit

protection

RDM Over current

protection

Overheat

protection

when a fault occurs.

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

5-Year

Warranty

6. With fast self-testing function.

7. High/low frequency PWM available.

Product introduction

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RJ45

3-pin XLR Photoelectric

isolation

E500585

Technical specs

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Unit: mm

LT-904

DMX512/RDM

3-pin XLR, RJ45

× 4CH Max. 576W

12 24Vdc

6A 4CH Max. 24A

(0~72W...144W)

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

Protection:

Working temperature:

Dimensions

Package size

Weight (G.W.)

Model

Input signal

Input voltage

Current load

DMX interfaces:

Output power:

Grey level

Short circuit / Overheat / Over current protection,

recover automatically.

-30°C~65°C

122×110×37mm(L×W×H)

127×123×41mm(L×W×H)

550g

Photoelectric isolation: Yes

110

86 37

122

110

Product size

006

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Main component description

Power

indicator

Signal

indicator

12-24Vdc

input voltage

LED lamp

connection

Digital

display

Dip

switch

Digital display

Screen

High Smooth

Low Std

30S off

Enable

PWM Hz DIM

Digital display will enter the locked mode

without operating after 15 seconds.

Dip switch

Bit

Long press “M” key to unlock.

Short press “M” key to switch numbers.

Press “ ””v” key to adjust value.

RJ45

3-pin XLR

DMX/RDM

input & output

DMX/RDM

input & output

888

DMX

RDM

DMX

RDM

Signal Signal

LED

driver

12-24Vdc

RGBW LED

LT-904

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Wiring diagram

1. Connecting LED lights:

V+

DMX signal

12-24Vdc

Resistor

terminal

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.

LT-904 is equipped with 2 kinds of DMX

terminals for users’ selection. The following

diagram takes 3-pin XLR as an example,

same connecting method for RJ45.

LT-904 LT-904

GND

DATA+

DATA-

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DMX

console

2. DMX console onnectionc :

DMX signal

12-24Vdc 12-24Vdc

DMX signal

LT-904

PUSH

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These 2 terminals can be connected in a mixed way.

RJ45 connected in parallel

3-pin XLR connected in parallel

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

Installation attentions: please reserve enough ventilation distance between decoders (>20mm),

be sure not to block the vent, or it will affect lifetime of decoder for .poor heat dissipation

Installation distance > 20mm

Vent

LT-904 LT-904

Resistor

terminal

Resistor

terminal

LT-904

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Update time: 14/01/2021_A2

Attentions

Warranty agreement

Warranty exclusions below:

No any contract signed by LTECH.

Warranty labels and barcodes have been damaged.

Damage caused by natural disasters and force majeure.

Products with severe physical damage.

Beyond warranty periods.

Warranty periods from the date of delivery : 5 years.

Free repair or replacement services for quality problems are provided within warranty periods.

Any artificial damage caused by high voltage, overload, or improper operations.

1. Repair or replacement provided is the only remedy for customers. LTECH is not liable for any incidental

or consequential damage unless it is within the law.

2. LTECH has the right to amend or adjust the terms of this warranty, and release in written form shall

prevail.

This manual is subject to changes without further notice. Product functions depend on the goods.

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

1. Products shall be installed by qualified professionals.

2. LTECH products are non-waterproof (special models excepted). Please avoid the sun and rain. When

installed outdoors, please ensure it is mounted in a water proof enclosure.

3. Good heat dissipation will extend the working life of products. Please ensure good ventilation.

4. Please check if the working voltage used complies with the parameter requirements of products.

5. The diameter of wire used must be able to load the light fixtures you connect and ensure the firm wiring.

6. Before you power on products, please make sure all the wiring is correct in case of incorrect connection

that causes damage to light fixtures.

7. If a fault occurs, please do not attempt to fix products by yourself. If you have any question, please contact

your suppliers.

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