showstack / hardware / enttec-dmx-usb-pro
ENTTEC DMX USB Pro
Single-universe USB interface for sending or receiving DMX512 from a computer, with buffered timing handled by the device and optional RDM firmware.
Maintained by@iibaranov-IGupdated 2026-09-10
Protocols it speaks
| Protocol | Direction | Notes |
|---|---|---|
| dmx512 | bidirectional | One 512-channel universe; the linked input and output ports are used in one direction at a time. |
| rdm | bidirectional | Requires the DMX/RDM firmware; ENTTEC also supplies separate DMX-only firmware. |
Connectors
- 1x USB Type-B
- 1x XLR5F DMX output
- 1x XLR5M DMX input
What to watch for
Only one application can use an ENTTEC USB DMX interface at a time. Close EMU and other lighting software before trying to connect from the show application.
The DMX input and output connectors share the same internal DMX port. Treat the unit as input or output, because simultaneous use can degrade the stream and flicker.
ENTTEC offers DMX-only and DMX/RDM firmware. Some software only connects with the DMX-only image, while enabling RDM can upset older fixtures that do not support it.
Sources
- DMX USB Pro product page — ENTTEC primary
- DMX USB Pro user manual — ENTTEC primary
- USB to DMX interfaces: input and output — ENTTEC primary
- DMX USB Pro: RDM — ENTTEC primary
Understand the mechanism
Something wrong, or missing?
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