LTEC D12 Decoder LED Controller User Guide

LTEC D12 Decoder LED Controller

Overview

D12 is a 12-channel DMX512/RDM LED decoder designed for high-power, multi-channel LED applications, with configurable DMX channel modes, PWM frequency, dimming curves, and built-in protection features.

Quick Setup & Use

1. Connect LED drivers to the green terminals and verify the correct wiring for your LED configuration.
2. Connect DMX/RDM input/output using one of the supported DMX interfaces (3-pin XLR, RJ45, or green terminal).
3. Apply power with 12–24Vdc.
4. Use the OLED screen and 3 buttons to set the DMX address (range 001~512), PWM frequency, number of DMX channels (CH01/CH02/CH03/CH04/CH08/CH12), grey level (8bit/16bit), and dimming curve (standard/linear/LOG or 0.1~9.9).
5. Select the operation type in the menu: DMX master mode or decoder mode.
6. If needed, perform quick self-testing by pressing the relevant keys simultaneously for 2–3 seconds on any page.
7. (Optional) Use RDM master control to browse/set parameters, including DMX address settings and equipment recognition.

Product introduction

1. Designed for Hi-power multiple channels application, 12-channel output, and Max. 5A current per channel, up to 1440W output power.
2. The human-computer interaction interface is composed of an OLED screen and 3 buttons, which displays rich content and is simple and fast to operate.
3. The number of DMX channels can be set to CH01/CH02/CH03/CH04/CH08/CH12, which can realize independent addressing and independent channel control, or one address to control multiple channels.
4. The PWM frequency can be set to 300/600/1200/1500/1800/2400/3600/7200/10800/14400/ 18000Hz;
5. 3-pin XLR, RJ45 and green terminal DMX interface with photoelectric isolation, improving signal transmission efficiency and anti-interference ability; the green terminal also has a signal amplifier function.
6. Operations can be completed via the RDM master console, such as parameter browsing & settings, DMX address settings, equipment recognition, etc.
7. Features DMX master mode and decoder mode；
8. With firmware upgrade function.
9. With short-circuit, overcurrent, and over-temperature protection, as well as a warning function when a fault occurs.
10. With power-on state management and fast self-testing function.
11. 16-bit (65536 levels) / 8-bit (256 levels) grey levels available.
12. Available for standard, linear, LOG, or custom 0.1-9.9 dimming curve.
13. The device has 10 built-in personalized lighting effects. You can enter the setting interface of the DMX master mode and select different lighting effects to achieve precise output control of other decoders.
14. Parameters can be set and modified through the RDM master control or mobile phone APP, eliminating the need for high-altitude operations.

Technical specs

• Model: D12
• Input signal: DMX512/RDM
• Input voltage: 12-24Vdc
• Current load: 5A × 12CH Max. 60A
• Output power: (0~60W…12W) × 12CH Max. 1440W
• DMX interfaces: 3-pin XLR, RJ45, green terminal
• Number of DMX channels: CH01,CH02,CH03,CH04,CH08,CH12
• Dimming curves: 0.1~9.9, standard, linear, LOG
• Grey level: 8-bit (256 levels) / 16-bit (65536 levels)
• Photoelectric isolation: Yes
• Protection: Short circuit / Overheat / Overcurrent protection; recovers automatically.
• Working temperature: -30°C~55°C
• Dimensions: 180×122×39mm(L×W×H)
• Package size : 193×127×41mm(LxWxH)
• Weight (G.W.): 730g

Product size

Unit: mm

Main component description

OLED screen interface

Wiring diagram

1. Connecting LED lights
2. DMX console connection:
   • D12 is equipped with 3 kinds of DMX terminals for users’ selection. The following diagram uses a 3-pin XLR as an example; the same connection method applies to the other two: RJ45 & green terminal (with amplifier function).
3. DMX Control Mode
   • If the recoil effect occurs because of a longer signal line or bad line quality, please try to connect 0.25W 90-120Ω terminal resistor at the end of each line.
4. The connection diagram of 3 kinds of DMX/RDM terminals:
   • Installation attention: please reserve enough ventilation distance between decoders (> 20 mm), and be sure not to block the vent, or it will affect the lifetime of the decoder due to poor heat dissipation.
5. The connection diagram of the AMP signal amplifier terminal:
   • Connecting with a green terminal or an extra amplifier will be needed when more than 32 decoders are connected or use overlong signal wire (as shown below).
   • The signal amplifier should not be used continuously for more than 5 times.

Load Parameters

At different PWM frequencies and different voltages, the max. load current and the total power of each channel vary. Before you do the wiring, please strictly follow the load parameters in the table below to operate.

Dimming Curve Setting

8-bit Address setting table

Work with RDM editor

• D12 can work with the LTECH RDM editor (Model: WiFi-RDM01) to realize changing the parameters via long-range settings; wiring diagram as below:

RDM editor App interface instruction

• Download the App, setting the D12 parameters (frequency, bit, curve, modes, dimming range, screensaver, etc.) after properly connecting the RDM editor.
• For more details, please check the manual of WiFi-RDM01.
• Well installation of products first, then work with WiFi-RDM01 to set parameters and firmware upgrade by App.
• a: Click”Add”, edit the address in the corresponding box.
• b: Click”ID” to get more product details.
• c: Click”“, enter the editing interface.
• d: Click”No.” to issue the recognition command.
• Supports WiFi-RDM01 upgrade and DMX driver upgrade.

Attention

• Product installation and commissioning should be done by a qualified professional.
• Our company’s products are not lightning-proof or waterproof (special models excepted). Please avoid the sun and rain.
• When installed outdoors, please ensure they are mounted in a waterproof enclosure or in an area equipped with lightning protection devices.
• Good heat dissipation will prolong the working life of products. Please ensure good ventilation.
• Please check if the working voltage used complies with the parameter requirements of products.
• The diameter of the wire used must be able to handle the load of the light fixtures you connect and ensure firm wiring.
• Before you power on the products, please make sure all the wiring is correct, as an incorrect connection that causes damage to the light fixtures.
• If a fault occurs, please do not attempt to fix products by yourself. If you have any questions, please contact your suppliers.

Warranty Agreement

• Warranty period from the date of delivery: 5 years.
• Free repair or replacement services for quality problems are provided within the warranty period.

Warranty exclusions below:

• The following conditions are not within the guarantee range of free repair or replacement services.
• Beyond the warranty period.
• Any artificial damage caused by high voltage, overload, or improper operations.
• Products with severe physical damage.
• Damage caused by natural disasters and force majeure.
• Warranty labels and barcodes have been damaged.
• No contract signed by our company.
  1. Repair or replacement provided is the only remedy for customers. Our company is not liable for any incidental or consequential damage unless it is within the law.
  2. Our company has the right to amend or adjust the terms of this warranty, and any 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 questions.

Troubleshooting

• No/unstable output during DMX use: Ensure the DMX signal line quality is good. If “recoil effect” occurs due to longer or poor-quality signal lines, connect a 0.25W 90–120Ω terminal resistor at the end of each line.
• Excess heat or fault behavior: The unit provides overheat/over-current/short-circuit protection and can recover automatically when faults clear. Verify ventilation and avoid blocking the vent to prevent poor heat dissipation.
• DMX/RDM signal issues with many decoders: If more than 32 decoders are connected or when using overlong signal wiring, use the green terminal signal amplifier function or an extra amplifier. The signal amplifier should not be used continuously for more than 5 times.
• Cannot set/recognize parameters via RDM: Use the RDM master console functions such as equipment recognition and parameter browsing/settings (including DMX address settings).
• Fault occurs, and you see a warning: Do not attempt to repair the product yourself; contact your supplier.