iskydance D24DMX512 4CH Constant Voltage RDM Decoder User Manual

D24DMX512 4CH Constant Voltage RDM Decoder

Specifications:

  • Product Name: 24 Channel Constant Voltage DMX512 & RDM
    Decoder
  • Channels: 24
  • Input Voltage: 12-24VDC
  • Input Current: 60.5A
  • Output Voltage: 24 x (12-24)VDC
  • Output Current: 24CH, 3A/CH Total Max. 60A
  • Output Power: 24 x (36-72)W
  • Output Type: Constant voltage
  • Warranty: 5 years

Product Usage Instructions:

Mechanical Structures and Installations:

Follow the dimensions provided for proper installation of the
decoder and LED outputs.

Features:

The decoder complies with DMX512 standard protocols and offers
various customizable settings including grey levels, PWM frequency,
and dimming curve.

Wiring Diagram:

Connect the RGB LED strips to the decoder as per the provided
wiring diagram. Ensure proper power supply and signal
connections.

Operation:

To set system parameters, long press M and key for 2 seconds.
Use the M key to switch between different settings. For DMX mode,
follow the displayed instructions for setting the DMX decode start
address.

DMX Dimming:

Each D24 DMX decoder occupies 24 DMX addresses when connected to
a DMX console. Adjust the PWM values for individual LEDs based on
the console’s channel settings.

Stand-alone Dimmer Mode:

To enter stand-alone dimmer mode, short press the M key and
follow the displayed instructions to control dimming without DMX
signal.

FAQ:

1. Do I need a signal amplifier for more than 32 decoders?

An amplifier is required if connecting more than 32 decoders.
Avoid signal amplification exceeding 5 times continuously.

2. How to address recoil effects due to long signal lines?

To address recoil effects, connect a 0.25W 90-120 terminal
resistor at the end of each line affected by longer signal lines or
poor quality.

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D24

DMX512

24 Channel Constant Voltage DMX512 & RDM Decoder

Mechanical Structures and Installations
1-4 RGB LED output

DMX input
LED indicator Digital display

DMX output Installation rack
45mm

5-8 RGB LEDoutput
160mm

Power input Power input +
Setting key Power input + Power input –

48mm 60mm 35mm

Feature
Comply with the DMX512 standard protocols. Digital numeric display, set DMX decode start address by buttons. RDM function can realize intercommunication between
DMX master and decoder. For example, DMX decoder address can be set by DMX master console. 16bit (65536 levels) /8bit (256 levels) grey level selectable. PWM frequency 500/1000/2000/4000/8000/16000/32000Hz selectable. Logarithmic or linear dimming curve selectable. Stand-alone 24-channel RGB mode and 24-channel dimmer mode selectable, which be controlled by buttons with built-in programs, instead of DMX signal.

Technical Parameters

Input and Output

Input voltage

12-24VDC

Input current

60.5A

Output voltage

24 x (12-24)VDC

Output current

24CH, 3A/CH Total Max. 60A

Output power Output type

24 x (36-72)W Constant voltage

Environment Operation temperature Case temperature (Max.)

Ta: -30 OC ~ +55 OC Tc: +85 OC

Safety and EMC EMC standard Safety standard

Warranty and Protection

Warranty

5 years

Protection

Reverse Polarity

Certi cation Package Size Gross weight

EN IEC 55015/ EN IEC 61547 EN 61347-1/-2 EN 62493 CE RoHS FCC
L165 x W98 x H72mm 0.356kg

User Manual Ver 1.0.8 2025.8

35.5mm 77mm 88mm
Wiring Diagram

149mm RGB LED strip x 4

DMX Master

Guide rail mounting dimensions: TS-35/7.5 or TS-35/15

RGB LED strip RGB LED strip RGB LED strip RGB LED strip

DMX Signal out

Power Supply 12-24VDC
Constant Voltage

AC100-240V

RGB LED strip RGB LED strip RGB LED strip RGB LED strip

Note:

RGB LED strip x 4

1. An DMX signal ampli er is needed if more than 32 decoders are connected, or use overlong signal line,

signal ampli cation should not be more than 5 times continuously.

2. If the recoil effect occurs because of longer signal line or bad line quality,

please try to connect 0.25W 90-120 terminal resistor at the end of each line.

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Operation
System parameter setting Long press M and key for 2s, prepare for setup system parameter: decode mode, grey level, output PWM
frequence, output brightness curve, default output level, automatic blank screen.short press M key to switch six item. Decode mode: short press key to switch 1-channel decode(“d-01”), 3-channeldecode(“d-03”) ,
6-channel decode(“d-06”) or 24-channel decode(“d-24”).When set as 1 channel decode, and 24 channel output the same brightness of this DMX address. Grey level: short press or key to switch 8bit(“b-08”) or 16 bit(“b-16”). choose 16 bit if the DMX master support 16 bit. Output PWM frequence: short press or key to switch 500Hz(“F05”), 1000Hz(“F010”), 2000Hz(“F020”), 4000Hz(“F040”), 8000Hz(“F080”), 16000Hz(“F160”) or 32000Hz(“F320”). Higher PWM frequency, will cause lower output current, higher power noise, but more suitable for camera(No ickers for video). When setting the PWM frequency > 8000Hz, the output current per channel needs to be reduced (24x2A@12-24V at 16000H or 32000Hz). Output brightness curve: short press or key to switch linear curve(“C–L”) or logarithmic curve(“C–E”). Default output level: set output level when no DMX input signal. short press or key to switch maintain DMX output(“d- -“) or output default level (“d00” to “dFF”, 0-100%), long press or key to change output default level. Automatic blank screen: short press or key to switch enable (“bon”) or disable(“boFF”)automatic blank screen. Long press M key for 2s or timeout 10s, quit system parameter setting. Note: In addition to manual button operation settings, the above system parameters can also be set by RDM function.

DMX mode
Short press M key, when display A001~A512, enter DMX mode.
Press or key to change DMX decode start address(001~512), long press for fast adjustment.
If there is a DMX signal input, will enter DMX mode automatically.
DMX Dimming: Each D24 DMX decoder occupy 24 DMX address when connecting the DMX console. For example, the defaulted start address is 1, their corresponding relationship in the form:

DMX Console CH1 0-255 CH2 0-255 CH3 0-255

DMX Decoder Output CH1 PWM 0-100% (LED 1#R) CH2 PWM 0-100% (LED 1#G) CH3 PWM 0-100% (LED 1#B)

DMX mode (A001~A512)

CH24 0-255 CH24 PWM 0-100% (LED 8#B)

Stand-alone dimmer mode
Short press M key, when display L–1~L–8, enter stand-alone dimmer mode.
Press or key to change dimmer mode number(L–1~L–8).
Each dimmer mode can adjust each channel brightness independently. Long press M key for 2s, prepare for setup 24 channels brightness. Short press M key to switch 24 channels(0100~01FF, 0200~02FF, 0300~03FF, … , 2400~24FF). Press or key to setup brightness value of each channel. Long press M key for 2s, or timeout 10s, quit setting.
Enter stand-alone dimmer mode only when DMX signal is disconnected or lost.

Stand-alone dimmer mode (L–1~L–8)

Restore factory default parameter Long press and key for 2s, restore factory default parameter, display”RES”.
Factory default parameter: DMX decode mode, DMX decode start address is 1, 24 channel decode, 8 bit grey level, 2000Hz PWM frequence output, logarithmic brightness curve, output 100% level when no DMX input, RGB mode number is 1, dimmer mode number is 1, disable automatic blank screen.

PPW WMM dduuttyy((%%)) PWM duty(%)

Dimming Curve Setting

Linear dimming curve

11000 9900 8800 7700 6600 5500 4400 3300 2200 1100

Gamma=1.0

10 20 30 40 50 60 70 80 90 100 Brightness(%)

Logarithmic dimming curve
100
Gamma=1.6
90 80 70 60 50 40 30 20 10
10 20 30 40 50 60 70 80 90 100 Brightness(%)

Stand-alone RGB mode
Short press M key, when display P–1~P–4, enter stand-alone RGB mode.
Press or key to change dynamic mode number(P–1~P–4).
Each mode can adjust speed and brightness. Long press M key for 2s, prepare for setup mode speed, brightness. Short press M key to switch two item. Press or key to setup value of each item. Mode speed: 1-10 level speed(SP-1, SP-9, SP-F). Mode brightness: 1-10 level brightness(br-1, br-9, br-F). Long press M key for 2s, or timeout 10s, quit setting.
Enter stand-alone RGB mode only when DMX signal is disconnected or lost.

RGB change mode list

No.

Name

P–1

White forward jump chase

P–2

White forward smooth oat

P–3

Red,yellow, green,cyan,blue,purple forward jump chase

P–4

Red,yellow, green,cyan,blue,purple forward smooth oat

User Manual Ver 1.0.8 2025.8

Stand-alone RGB mode (P–1~P–4)

Speed (8 level)

Brightness (10 level,100)

Malfunctions Analysis & Troubleshooting

Malfunctions No light
Wrong color
Uneven intensity between front and rear,with voltage drop

Causes
1. No power. 2. Wrong connection or insecure. 1. Wrong connection of R/G/B wires. 2. DMX decode address error.

Troubleshooting
1. Check the power. 2. Check the connection. 1.Reconnect R/G/B wires. 2. Set corrrect decode address.

1. Output cable is too long.

1. Reduce cable or loop supply.

2. Wire diameter is too small.

2. Change wider wire.

3. Overload beyond power supply capability. 3. Replace higher power supply.

4. Overload beyond controller capability.

4. Add power repeater.

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Documents / Resources

iskydance D24DMX512 4CH Constant Voltage RDM Decoder [pdf] User Manual
D24, D24DMX512, D24DMX512 4CH Constant Voltage RDM Decoder, D24DMX512, 4CH Constant Voltage RDM Decoder, Voltage RDM Decoder, RDM Decoder, Decoder

References

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