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RC4M-900SX DMXio - HG Data Transceiver

by RC4

Product Information

Best-in-class data security, the congestion-free 900MHz band and the RC4Magic Two-Year Warranty make the RC4Magic-900SX DMXio the very best choice for reliable wireless DMX. RC4Magic-900 operates in the 902-928 MHz RF band, licensed ONLY for use in USA, Canada, Australia, New Zealand and Brazil. 

Fast, Secure Wireless DMX Transmission and Distribution
The RC4Magic-900SX DMXio-HG transceiver is ideal for dimming lamps, LEDs and more, while providing state of the art security and best-in-class, congestion-free 900MHz wireless dimming for customers in the USA, Canada, Brazil, Australia, and New Zealand.

The 900SX DMXio-HG transceiver is a smart device that automatically detects other wireless transmitters, and will automatically switch to receive mode. Manually switching modes is as simple as a push of a button. The 900SX DMXio transceiver—working with another 900 SX DMXio or with another RC4 900SX wireless DMX device- is the ideal hub for all wireless 900MHz dimming in theater, arenas, films, television and even in architectural applications.

900MHz avoids the congested 2.4GHz band and provides a fast, reliable, secure signal up to 600 feet (180m) or more inside theatres and other performance spaces, and to 1000 feet (300m) or more outdoors. Three DMX universes—and occasionally more- can operate safely and reliably in the 900MHz band, thanks in part to RC4 System IDs. This means interference-free operation anywhere, anytime.


  • Dimensions: 3.4” x 2.3” x 1.55” nominal (approx. 86mm x 59mm x 40mm). Mounting flanges extend an additional 0.5″ (13mm), for a bottom footprint of 4.4″ x 2.3″ (112mm x 59mm)
  • Weight: 3.60oz
  • DMX Input/Output: meets USITT DMX512/1990. XLR5 male and female, and RC4 non-standard miniplug port
  • Power Input: 6VDC – 35VDC, a world-voltage 90 – 250VAC high-efficiency AC adaptor is included. International purchasers will receive a multi prong adapter with connections for Europe, UK, Australia, and North America. North American customers will receive a standard adaptor for use in USA and Canada.
  • Series 3 Versatility: DMX termination enable/disable; selectable top/bottom DMX channel; selectable RF power output levels (RC4Magic-900 900MHz* FHSS 250mW max.) Dongle Mode combined with an RC4 USB CodeLoader Cable becomes the hardware interface for RC4 Commander Software
  • 902-928MHz RC4Magic-900 RF Antenna: RP-SMA external antenna with nominal 243m range is included. Range can be further extended using high-gain and/or directional antennas where regulations permit


Transmitter Mode

  • Only 1 DMXio transmitter should be operated on each system ID
  • DMX Input: meets USITT DMX512/1990(4us) with 1-second data hold after dropout
  • DMX Output: straight-thru hardware connection from DMX input to output
  • Optional DMX channel limiting: set lowest and highest channel using RC4 OneTouch (default is full 512-channel universe)

Receiver Mode

  • Any number of DMXio receivers may be used in a system
  • DMX Output: meets USITT DMX512/1990
  • The DMX specification allows up to 32 devices on a DMX output.  The DMXio data output exceeds this requirement and is capable of driving additional devices
  • Internally protected against static discharge and excessive line loading

RC4Magic DMX Protocol Compliance

  • DMX inputs and outputs comply with USITT DMX512/1990(4us)
  • Packets with non-zero start codes are not transmitted; RC4Magic cannot transfer proprietary data or RDM packets
  • DMXio receiver output replicates DMXio transmitter input, providing the same number of DMX channels and the same number of packets per second (pps)
  • Minimum number of DMX channels per packet: 1
  • Maximum number of DMX channels per packet: 512
  • Maximum packet-per-second rate: 44pps with 512 channels, 10000pps with 1 channel