The DMX-RL8 DMX Relay Module provides On/Off control for up to 8 devices using the well-known DMX-512A protocol. It features an isolated receiver with a passive DMX THRU port. The DMX start slot is selectable from the full range of 1 to 512 (via onboard dip-switches) The DMX-RL8 uses 8 DMX slots and is able process the incoming DMX data stream at its full speed (maximum update rate of 44 updates per second).

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  • 8 x DMX Controlled Relay Outputs
  • Isolated Receiver
  • Full DMX data rate (44 updates per second)
  • DMX Start Slot selectable between 1 and 512 (0 to 511 on DIP-Switch)
  • DIP-Switch selectable termination
  • LED Indicators for Supply, DMX Receive and Individual Relays
  • DMX THRU Terminals (Passive Loop)
  • Able to switch loads up to 10 Amps


Control of non-DMX devices such as:

  • Fountain Solenoid Jets
  • Fog Machines
  • Confetti Cannons
  • Fans


Number of Relay Outputs8
Supply Voltage12VDC (+/- 10%)
Response Time~25ms (typical)
Power Consumption0.4A @ 12 VDC (Full Load)
Data-In ProtocolDMX512-A
Maximum Update Rate44 Updates / second
Termination Resistor120-ohm (Jumper Selectable)
DMX Start AddressSlot 1 to 512 (0 – 511 on DIP Switch)
Isolated ReceiverYes
DMX THRUYes (Passive Loop)
Operating Temperature0 to 50 degC
Over Current ProtectionPTC Fuse (0.5A)
Relay Contact Rating7A @ 250VAC
10A @ 24VDC
Relay Output Latency1 DMX Packet
Relay Activation ConditionRelay ON when DMX Slot >= 127,
Relay OFF when DMX  Slot < 127
DMX Unit Load1 Unit
DMX Data Loss HandlingMaintain Last State
DMX START Code HandlingResponds to NULL START code, all other codes ignored.
LED IndicationPower, DMX Data Received, Relay Status (Individual)
Dimensions5.6″ x 3.3″
Warranty1 Year (Limited Warranty)

Ordering Information (Part Numbers)

  • DMX-RL8 REV B1 – 8-Channel DMX Controlled Relay Module (Firmware version: 2.00)
  • DMX-RL8(12V) REV A0 – 8 Channel DMX Controlled Relay Module (12 VDC) [Obsolete]
  • DMX-RL8(24V) REV A0 – 8 Channel DMX Controlled Relay Module (24 VDC) [Obsolete]

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