A USB–DMX interface on the desk is useless if your lighting software never sees it, fights over the USB port, or drops out mid-rehearsal. ElectroTAS interfaces — TZ-1U, TZ-2U , and TZ-Mini — are built for everyday console software in theatres, clubs, churches, and production houses: QLC+, FreeStyler, DMXControl, and many more, on Windows, Linux, and macOS.
This guide —following USB–DMX Interface: what it is, what it’s for, and who should get one, 1 universe vs 2 universes , and optical isolation in USB–DMX— covers what real compatibility means, how to set up QLC+ and FreeStyler in the Open DMX / Enttec Open DMX style, which drivers matter on each OS, and the mistakes that look like “incompatibility” but are usually configuration.
What “real compatibility” actually means
Almost every box claims “works with DMX.” In the field, real compatibility is three things at once:
- The software enumerates the interface — it shows up under Inputs/Outputs, Setup, or the hardware panel as a USB–DMX device (often Open DMX / Enttec Open DMX, or via a DMX USB plugin).
Drivers do not fight — on Windows, the right FTDI stack (typically D2XX) lets the app claim the port; a leftover VCP driver can block that path.
One owner of the USB port — only one lighting program can open the interface at a time. If QLC+ and FreeStyler are both running, one (or both) will fail.
ElectroTAS product pages list day-to-day software: FreeStyler, Q Light Controller, QLC+ (Windows/macOS), DMXControl, DMX4Linux, PC_DIMMER, LightFactory, VirtualLightdesk (macOS), JV Lightning DmxControl (macOS), and many more. Separately, QLC+ officially lists ElectroTAS USB–DMX under DMX USB plugin compatibility. That is not a forum rumour — it is the supported path into a working show file.
Quick table: software × operating system
Orientation based on shop listings and typical use for this class of interface. Always confirm your software build and drivers on the actual show machine.
| Software | Windows | macOS | Linux | Practical notes |
|---|
TZ interfaces support Windows, Linux, and macOS. The application on top decides the exact menu labels (Open DMX, DMX USB, and so on).
QLC+: step-by-step with ElectroTAS USB–DMX
QLC+ is the free workhorse for many techs: fixtures, scenes, chases, and a clear Inputs/Outputs panel. With ElectroTAS hardware the usual flow is:
- Plug in the interface over USB (and, on TZ-1U / TZ-2U, the external 12 V supply for real stage use).
- Install drivers only if the OS asks (see the checklist below). Many Macs running QLC+ need no extra driver.
- Open QLC+ and go to Inputs/Outputs.
- Find the DMX USB plugin line / compatible USB–DMX device (ElectroTAS is on the official compatibility list for that plugin).
- Enable output to the correct universe (universe 1 on TZ-Mini / TZ-1U; universes 1 and 2 on TZ-2U as you map them in software).
- Load a test fixture, raise a channel, and verify on stage or with a DMX tester.
If the interface is missing: quit other DMX apps, try a real data USB cable (not charge-only), and on Windows check that a VCP driver is not sitting on the FTDI chip.
FreeStyler: Setup and Enttec Open DMX
FreeStyler remains a staple in many Windows rooms and freelance kits. For Open DMX / Enttec Open DMX–class USB–DMX interfaces, the typical path is:
Install FreeStyler and the appropriate FTDI drivers (prefer D2XX when the app expects it).
Connect TZ-1U, TZ-2U, or TZ-Mini over USB.
Open Setup (hardware / interface configuration).
Select Enttec Open DMX / Open DMX according to your version's options.
Assign the output universe and save. Test a dimmer or simple fixture before the show.
FreeStyler will not share the USB happily with another lighting app. If QLC+ is still open in the background, FreeStyler may never claim the port. One program, one port.
DMXControl and the wider ecosystem
Beyond QLC+ and FreeStyler, ElectroTAS listings mention DMXControl, DMX4Linux, PC_DIMMER, LightFactory, and macOS options such as VirtualLightdesk and JV Lightning DmxControl. The pattern is the same:
- Choose the Open DMX / Enttec Open DMX interface profile or the USB–DMX plugin in the software.
- Confirm that the OS sees the USB device (Device Manager on Windows, System Information / USB on macOS, lsusb or the FTDI stack on Linux).
- Map universes to the hardware: one universe (TZ-Mini, TZ-1U) or two (TZ-2U).
Do not invent exotic proprietary modes that are not in the software manual. This class of interface lives in the open Open DMX / DMX USB ecosystem.
Drivers checklist: Windows, macOS, Linux
| OS | Do this | Avoid this |
|---|---|---|
| Windows | Install FTDI D2XX drivers when the software requires them; confirm that the app can claim the interface | Leaving VCP active if it conflicts with D2XX; two DMX apps open |
| macOS | With QLC+, often no extra driver — plug in and configure Inputs/Outputs | Installing “just in case” VCP stacks that later collide |
| Linux | Ensure libftdi / correct USB permissions; use QLC+ or DMX4Linux for your distro | Running the app without device permissions (silent failure) |
Golden rule: only one lighting program owns the USB port. Quit the other before you open the show file.
Diagram: PC to software to USB to interface to XLR
Conceptual chain (nested lists only; no flowchart syntax):
1. PC / notebook
- Windows, Linux, or macOS
- FTDI drivers (D2XX on Windows when required; libftdi on Linux; often nothing extra on macOS + QLC+)
2. Lighting software (single USB owner)
- QLC+ (DMX USB plugin) · FreeStyler (Setup / Enttec Open DMX) · DMXControl · other shop-listed apps
- Universe(s) mapped to output
3. Data-capable USB cable
- Stable USB port; avoid cheap hubs on critical shows
4. ElectroTAS interface
- TZ-Mini — compact 1-universe entry
- TZ-1U — 1 universe, dual Neutrik opto-isolated outs + 12 V
- TZ-2U — 2 universes, same Pro protection stack
5. 120 Ω DMX cable and stage
- XLR3 to fixtures / dimmers / splitters
- Proper termination and topology
Common failures that look like “incompatibility”
- VCP vs D2XX on Windows — the port “shows up” but lights never move. Remove or disable VCP if it fights D2XX, then restart the app.
- Two apps open — QLC+ plus FreeStyler (or DMXControl) at once. Close one.
- Charge-only USB cable — no data lines. Swap for a short, known-good data cable.
Wrong universe mapping — software on universe 2 with 1-universe hardware (or the reverse on TZ-2U). Recheck Inputs/Outputs or Setup.
TZ Pro without 12 V on a noisy stage — not a software bug, but it feels like random dropouts: use the external supply (see the optical isolation guide). optical isolation).
Linux USB permissions — user not in the right group / missing udev rules; the app launches but never writes DMX.
Which interface to pick for your software and channel count
| Your situation | Guidance |
|---|---|
| QLC+ or FreeStyler, patch ≤ 512, rehearsal / classroom / small bar | TZ-Mini |
| Same software, live show, want opto + two taps of the same universe | TZ-1U |
| QLC+ (or similar) with two real universes / more than ~512 channels | TZ-2U |
Software does not change hardware channel count: one universe is still up to 512 channels; two universes, up to 1024. Details in the 1 vs 2 universes guide. 1 vs 2 universes.
FAQ
Does QLC+ officially support ElectroTAS interfaces?
Yes. QLC+ lists ElectroTAS USB–DMX under DMX USB plugin compatibility. Configure Inputs/Outputs and enable the matching output.
Which interface type should I select in FreeStyler?
For this class of USB–DMX hardware, the usual path is Enttec Open DMX / Open DMX in FreeStyler Setup, with appropriate FTDI drivers on Windows.
Can I run QLC+ and FreeStyler on the same interface at once?
Not reliably. Only one program can own the USB port. Quit one before opening the other.
Do I need a driver on macOS?
With QLC+ on many Macs you need nothing extra: plug in, open Inputs/Outputs, and go. Installing “just in case” VCP stacks can create avoidable conflicts.
What is D2XX and why does it matter versus VCP?
D2XX is the native FTDI access path many DMX apps expect. VCP emulates a serial port and can mask or fight D2XX. If lights never move even though something USB appears, check VCP versus D2XX.
Does Linux need anything special?
Yes: you typically need libftdi and correct USB permissions for your user. Without that, QLC+ or DMX4Linux may open without writing DMX.
Does TZ-2U need different software than TZ-1U?
No. Same QLC+ / FreeStyler / DMXControl — you just map two output universes in software.
Where do I buy, and what should I read first?
Shop: TZ-1U, TZ-2U, TZ-Mini. Guides: intro USB–DMX, 1 vs 2 universes, optical isolation.
Conclusion
Real compatibility means the software sees the interface, drivers do not fight, and a single app owns USB. With QLC+, FreeStyler, DMXControl, and the rest of the shop list, ElectroTAS TZ-Mini, TZ-1U, and TZ-2U fit the Open DMX / DMX USB workflow on Windows, Linux, and macOS.
Pick the model by channel count and stage toughness — not by “a different soft” — and lock Setup before dress rehearsal: Inputs/Outputs in QLC+, Open DMX in FreeStyler, clean D2XX on Windows.
Questions about your software build or patch? Contact us via electrotas.com.ar with OS, program, and TZ model. electrotas.com.ar con sistema operativo, programa y modelo TZ.