DMX512 Nodes for Clarity Control System

The LSC Clarity QX products are DMX512-A decoders (Nodes).
They connect to a standard computer (PC or Mac) via the USB port and provide either 1 (QX1), 2 (QX2) or 4 (QX4) DMX512-A outputs. The QX nodes integrate directly to the LSC Clarity software and appear automatically as possible output devices on Clarity's Patch Window.

Each output port complies to the latest DMX512 specification and is fully RDM compatible. In addition, each port on the QX2 and QX4 is electrically isolated from every other output as well as the computer to ensure that "common-mode" voltages cannot cause any DMX512 data problems.

A multi-colour LED indicator located near each output indicates when the output is active, when it is sending DMX512 data and when it is handling RDM data. A similar LED near the USB connector indicates a valid USB connection or any errors detected.

The QX1 is housed in an extended DMX512 XLR style 5-pin connector as part of an 40cm inline cable. The QX2 and QX4 are each housed in a sturdy ABS plastic case and are designed to be rugged and durable.

The QX Nodes are designed to get their power from the USB port on your computer or from a USB hub.

Due to the wide variety of USB ports on computers and hubs, sometimes there may be not enough power available for the QX2 or QX4 devices. Note that this is a problem of the hub or computer as the QX products power requirements are designed within the USB specification. If there is insufficient power from these devices there there is an external power input where a Plug-Pack can be plugged in to provide sufficient power for the QX2/QX4.
The QX1 has no external power input and doesn't require one.

Note: The QX4 was discontinued in 2012 but information is retained here for completeness. If you in need of a decoder for 4 (or 5) DMX outputs then please view the Nexus range that convert Ethernet to DMX512.


QX Features

  • Integrates directly with any PC or Mac via USB;
  • Provides 1(QX1), 2 (QX2) or 4 (QX4) DMX-512 outputs;
  • All outputs are RDM capable;
  • Each output on the QX2 and QX4 has 1500V galvanic isolation from any other output and the computer;
  • USB 1.1 compatible;
  • Multicolor LEDs indicate DMX512 data, RDM data or collisions on outputs;
  • Multicolor LED on USB port indicates connection status including errors (QX2 and QX4 only);
  • Powered off computer's USB port;
  • Supplementary power input socket (Plug Pack) on QX2 and QX4;
  • Small rugged ABS housing;



Number of DMX512 Outputs
1 2 4
DMX512 signals
Conforms to ANSI Standard E1.11 DMX512-A
RDM Compatability
Conforms to ANSI Standard E1.20 2006
DMX Speed adjustable for non standard DMX products
Galvanic Isolation
N/A 1500 V between every input and output
RGB LED for output port RGB LED for each output port and the USB port
Operating system required
Integrates directly with LSC Clarity
USB Powered
USB Power requirements
External Power Input (for use with non-standard USB ports)
External Power Supply requirements (if required)
N/A 9-18V AC/DC 500mA
Firmware upgradeable via USB
Accessories supplied
Software Installation CD, User Manual USB A to USB B cable, Clarity Software Installation CD, User Manual
Product Dimensions
mm N/A 140 x 132 x 42 mm
inches N/A 5.5" x 5.2" x 1.7"
Shipping Dimensions
mm 210 x 270 x 25 350 x 280 x 80 mm
inches 8.25" x 10.6" x 1" 15" x 11" x 3.2"
Product Weight
gm 65gm 310 gm 330gm
oz 2.3 oz 10.9 oz 11.6 oz
Shipping Weight
gm 165gm 750 gm 790 gm
lb 5.8 oz 1.65 lb 1.75 lb



Product Brochure
Clarity Software Link
Clarity Software Link


Clarity QX Product Codes

Available sizes
LSC Clarity USB - DMX Node. 1 x DMX512 output RDM Compliant
LSC Clarity USB - DMX Node. 2 x DMX512 outputs RDM Compliant


QX DMX Node Images

Here are some shots of the Clarity QX nodes.

Simply click on any image for an enlarged view.

Clarity QX1 Node
LSC QX1 Node
Clarity QX2 Node
Clarity QX2 Node

QX2 from a different angle

Clarity QX2 Front


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