Enjoy a world of flexibility with our reliable DMX Opto-Splitter
With its stylish black ABS body, designed and made in Australia, the D-Split DMX opto-splitter will make life easier with simplified DMX distribution. The D-Split is both an optical splitter/isolator and repeater for DMX512. It allows one DMX input (either 3-pin or 5-pin) to be replicated on to 4 isolated output ports.

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Small yet powerful
The small, light and portable D-Split offers a great solution to extend your DMX chain, without sacrificing the quality.
ANSI E1.11 – USITT DMX512-A compatible. Each unit repeats and re-buffers all 512 channels of DMX from the input on each output.
1000V optical isolation
Each output port features protection up to 1000V of stray voltage, meaning any issues stay on the DMX line and don’t jump across into the rest of your system.
Using a D-Split between your DMX controller and lights is a smart way to help protect your precious gear from getting damaged by DMX cabling faults or stray voltage, all whilst making your DMX wiring scheme far more flexible.
Simply connect your fixtures and controls – let D-Split take care of the rest.
DIN rail mounting solution
The D-Split features built-in mounting points to attach an optional TS35 DIN rail clip (included in the box) to allow you to install it in control cabinets or on surfaces/walls with a DIN rail fitted.
Goodbye DMX adaptors!
We know that using DMX adaptors to convert between 3- and 5-pin is a pain. You either forget them, lose them, or they take up unnecessary space in your installation. It’s this attention to detail that we believe helps to make ENTTEC products stand out.
We have two D-Split variants that make this pin issue a thing of the past! Choose between:
70578: 2 x 3-pin + 2 x 5-pin outputs
70579: 4 x 5-pin outputs
70574: 4 x 3-pin outputs
We’ve included both 3- and 5-pin DMX input connectors on both variants for you to connect the DMX input you need.
Wide voltage range
The D-Split is shipped with a universal DC power adaptor as standard. However, if space is tight and you want to share a single power supply between all of your devices (e.g. in a DIN Cabinet), it can accept 7-24V DC input.
Stealth design
The updated D-Split case design features a robust ABS construction with a single power LED, allowing it to blend into the background of your projects.
1-year warranty
ENTTEC are proud to back up the confidence in our research, engineering and quality control with a 1-year return-to-base manufacturer warranty on this product.
Connect and Extend
Instead of having to make all fixtures fit within a single daisy chain, each of the four outputs from the D-Split can be the start of its own chain, and multiple D-Splits can be linked together to expand further.

DMX pass through
As the two male DMX inputs of the D-Split are linked (designed for one DMX input at a time), as an installer, you can create non-standard, female-to-female DMX cabling to create a DMX chain of up to 32 D-Splits. Simply daisy chain each male XLR together from a single DMX source.
This is a way to ensure your DMX source can travel between the input side of your D-Splits, even if one isn’t powered on.

Specifications
| Connectors and network | |
|---|---|
| Input connectors | 1 x 5-pin XLR 1 x 3-pin XLR Only one input is allowed: two DMX signals at once give no output and no error. |
| Output connectors | 4 x XLR, pin count by SKU: 70574: 4 x 3-pin 70578: 2 x 3-pin and 2 x 5-pin 70579: 4 x 5-pin |
| LED indicators | Power & data output |
| Output and control | |
| Input protocol | USITT DMX512-1990 |
| Output protocol | USITT DMX512-1990 |
| RDM compatibility | No |
| Max. channels | 512 channels (1 universe) |
| Power and thermal | |
| Input voltage | 7-24V DC |
| Max. current | 400mA |
| Operating temperature | 0°C to 50°C (32°F to 122°F) |
| Operating humidity | 5-95% non-condensing |
| Physical and supply | |
| Body material | ABS plastic |
| IP rating | IP20 |
| Unit dimensions | 116 x 87 x 52mm |
| Unit weight | 0.16kg / 0.35lbs |
| Shipping dimensions | 235 x 160 x 68mm |
| Shipping weight | 0.5kg / 1.10lbs |
| Warranty | 1-year return-to-base manufacturer warranty |
| Compliance | RCM (Aus/NZ), CE / WEEE (EU), UKCA (UK), FCC (USA) |
Resources
Projects Featuring the D-Split
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