Martin RDM 5.5 Splitter

The Martin RDM 5.5 Splitter is the perfect companion to any controller or DMX/RDM device. The main purpose of the Martin 5.5 Splitter is to maintain proper data over long or several runs of DMX signal. The Splitter boosts the weak DMX signal to its original output level before it becomes too low to be read by DMX devices. Disruption of DMX is often caused by bad cables or bad connections. The Martin RDM 5.5 Splitter will help to rectify the signal.

  • 5-pin XLR Input and Outputs DMX-RDM E1.20 Splitter/Booster
  • Opto-isolated DMX Output ports
  • Rack, truss and wall mountable

Through fully individual isolated input and 5 outputs, the Martin RDM 5.5 Splitter will protect your DMX controller and DMX fixture against voltage surge on the data line. Ground loops are common in complex lighting setups and such problems can create errors in the DMX data. The Martin 5.5 Splitter will help to prevent such situations.


Another common issue with DMX communication is reflection caused by long lines, too many connections, or too many devices on the same line, etc. The Martin RDM 5.5 Splitter will prevent such reflection by dividing the load over several outputs and therefore making shorter lines with less connections and devices.


Data monitoring

While the DMX signal runs through the Martin 5.5 Splitter, a microprocessor decodes and monitors the signal. If an error is detected on the DMX line, the splitter will illuminate an error LED.



RDM Data

RDM (Remote Device Management) is the newly adopted standard in DMX transmission. RDM is a protocol that allows bidirectional communication between RDM capable fixtures and controllers. Most DMX splitters will not allow such data traffic to be processed.



One of the unique features of the Martin RDM 5.5 Splitter is its ability to transmit RDM data either way on the DMX line. A built-in microprocessor takes care of managing this information in a very efficient way by avoiding data collisions and increasing the discover time of RDM devices on the links.


Find PDF Technical

  • DMX Splitter / Booster
  • Opto-isolated DMX Output ports
  • DMX loop through port with built-in termination
  • 5-pin XLR Input and Outputs
  • RDM E1.20 compliant
  • Optimized for Martin fixture firmware upload
  • Universal power supply
  • PowerCon connectors in/out for easy daisy-chaining
  • Rack, truss and wall mountable
  • Lightweight yet robust construction
Physical Depth: 125 mm (5.0 in.) Width: 220 mm (8.7 in.) Height: 45 mm (1.8 in.) Weight: 0.9 kg (2.0 lbs.)
Data signal DMX: ANSI E1.11 (USITT DMX 512-A) RDM: ANSI E1.20 Electrical standard: EIA-485 Recommended cable type: STP (Shielded Twisted Pair) Recommended cable gauge: 22 or 24 AWG
Construction Housing: Aluminum Finish: Electrostatic powder-coated
Connections Data input: 5-pin XLR male Data throughput (not amplified or branched): 5-pin XLR female Data outputs (optically isolated and amplified): 5 x 5-pin XLR female AC power input: Neutrik PowerCon AC power throughput: Neutrik PowerCon
Electrical AC power: 100-240 V nominal, 50/60 Hz Power supply unit: Auto-ranging electronic switch-mode Typical total power consumption: 4 W Power consumption figures are typical, not maximum. Allow for +/-10% variation.:
Thermal Maximum ambient temperature (Ta max.): 55° C Minimum ambient temperature (Ta min.): -30° C
Approvals EU safety: EN 60950-1 EU EMC: EN 55022, EN 55024, EN 55103-1, EN 55103-2 US safety: UL 508 US EMC: FCC Part 15 Class A Canadian safety: CAN/CSA C22.2 No. 14 Canadian EMC: ICES-003 Class A Australia/NZ: C-TICK N4241
Included Items 4 x screws to join two devices for rack mounting 2 x L-brackets + 8 x screws for 19-inch rack mounting two Splitters (1U) or surface mounting Neutrik PowerCon NAC3FCA male input connector
Accessories Neutrik PowerCon NAC3FCA power input connector, cable mount, blue: P/N 05342804 Neutrik PowerCon NAC3FCB power output connector, cable mount, light grey: P/N 05342805 Half-coupler clamp: P/N 91602005 G-clamp: P/N 91602003 Quick trigger clamp: P/N 91602007 Safety cable, safe working load 50 kg: P/N 91604003 3-pin male XLR to 5-pin female XLR adaptor: P/N 11820004 5-pin male XLR to male RJ-45 adapter: P/N 11840111 5-pin female XLR to male RJ-45 adapter: P/N 11840112
Related Items Martin DMX 5.3 Splitter™: P/N 90758140
Ordering Information Martin RDM 5.5 Splitter™: P/N 90758150

Spec Docs

RDM 5.5 and DMX 5.3. Spiltter Brochure
RDM 5.5 and DMX 5.3. Spiltter Brochure
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Stage Solutions
Stage Solutions