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Welcome to use the 30CH constant decoder, which take advantage of advanced microelectronic control technology. This technology changes the international fashion DMX512/1990 standard digital control signals into analog control signals. There are 1~30 output channels; Each channel can achieve 256 control levels. This constant decoder is used when DMX512 control equipment control general LED lighting.
Base Features:
*** There are 30 output channels, can connect with single or RGB lamps.
***This DMX decoder control 30 Channels LED lights via a DMX control signal.
***This decoder accepts standard XLR-3 caron plug, RJ45 type connections for the DMX signal input and output.
*** International standard DMX512 input protocol, address code set by DIP switches.
***There are a total of ten, 3 channel, common anode outputs with screw-down terminal blocks for easy connection to your LED lights.
***This decoder is able to accept 9-24VDC at 2A per channel (thirty channels total) for max load of 540W/9V, 720W/12V, or 1440W/24V.
***Each DMX decoder requires 30 addresses in the DMX universe being used as well as a 9-24VDC driver large enough to power the lighting load.
*** The decoder comes with 16 kinds of test patterns, 16 levels for rate of change.
SPECIFICATIONS | ||||||
Model | 30 Channels DMX512 Decoder | SKU | QJ-30CHDMX | |||
Input Power | 9~24V DC | Max. Load Current | 2A/CH*30 | |||
Max. Power Load | 720W(12V) 1440W(24V) | Input Signal | DMX512/1990 | |||
Output Signal | 30 Channels Constant PWM | Output Gray Level | 256 | |||
Dimensions | L225 X W80 X H32 mm | Warranty Period | 2 Years | |||
Standard XLR-3 caron plug, RJ45 | Connection Method | Common Anode | ||||
Remark:
QJ-30CHDMX-1 with metal shell;
QJ-30CHDMX-2 without metal shell.





DMX512 Function
The item have DMX512 function, can be used in serval online.
There are DMX512 mode and Automatic mode.
1. DMX MODE
In this mode, you can control the LED decoder with DMX512 console or PC DMX512 console.



Example 2:
As the schematic 2, DMX512 start address is set to 388,
encoding the no. 2,3,6,8 switch dial to "1", others set to "0", then the sum of the switch 1-8 code value is 4 + 128 + 256 = 388, that is the DMX512 start address 388.
2. AUTOMATIC MODE
In this mode, the LED decoder will run automatically.

No. | Dial code | Effect | No. | Dial code | Effect |
1 | No.1 | Automat cycling | 2 | No.2 | Seven-color cycle gradient |
3 | No.1&2 | RGB fade in and out | 4 | No.3 | Seven-color jump |
5 | No.1&3 | RGB jump | 6 | No.2&3 | Red |
7 | No.1&2&3 | Green | 8 | No.4 | Blue |
9 | No.1&4 | Yellow | 10 | No.2&4 | Purple |
11 | No.1&2&4 | Cyan | 12 | No.3&4 | White |
13 | No.1&3&4 | Seven-color cycle gradient and jump | 14 | No.2&3&4 | RGB cycle gradient and jump |
15 | No.1&2&3&4 | Seven-color jump and RGB jump |
Speed Choices (DIP switch No.5 to No. 8):
No. | Dial code | Speed | No. | Dial code | Speed |
1 | No.5 | 0.5 second | 2 | No.6 | 1 second |
3 | No.7 | 1.5 second | 4 | No.8 | 2 second |




Q1. Can i have a sample order for 30CH DMX512 Decoder?
A: Yes, we welcome sample order to test and check quality.
Q2. What about the lead time?
A:Sample needs 3-5 days, mass production time according to the order quantity.
Q3. Do you have any MOQ limit for 30CH DMX512 Decoder?
A: Low MOQ, 1pc for sample checking is available.
Q4. How do you ship the goods and how long does it take to arrive?
A: We usually ship by DHL, UPS, FedEx or TNT. It usually takes 5-6 days to arrive.
Q5. How to proceed an order for product?
A: You can place an order directly by clicking "Start Order" on the product page.
or
Firstly let us know your requirements or application.
Secondly We quote according to your requirements or our suggestions.
Thirdly customer confirms the samples and places deposit for formal order.
Fourthly We arrange the production.
Q6. Is it OK to print my logo on 30CH DMX512 Decoder ?
A: Yes. Please inform us formally before our production and confirm the design firstly based on our sample.
Q7: Do you offer guarantee for the products?
A: Yes, we offer 2 years warranty to our products.
Q8: How to deal with the faulty?
A: Firstly, Our products are produced in strict quality control system and the defective rate will be less than 0.2%.
Secondly, during the guarantee period. For defective batch products, we will repair them and resend them to you or we can discuss the solution including re-call according to real situation.