Emergency Lighting Scenarios Based on DMX: Ensuring Backup and Reliability 🛠️

1 Minute Read

When it comes to critical facilities—such as theaters, public buildings, tunnels, or architectural facades—a failure in the lighting control system can lead to serious consequences ⚠️. We spoke with an engineer from Sundrax Alex Chomsky about how to properly implement emergency lighting scenarios based on DMX and what to consider for reliable operation in emergency situations.

Building facade with colorful DMX-controlled lighting at night

Public building exterior with architectural DMX lighting


What Qualifies as an Emergency in DMX Networks? 🚨

Loss of signal from the primary controller

DMX cable failure

Power failure on the control device

Damage to the cable infrastructure (e.g., vandalism, fire, flooding)
In such cases, it’s essential that lighting fixtures avoid an uncontrolled state and automatically transition to a safe mode.

Emergency Scenario Options

  1. Static Emergency Brightness Level 💡
    Most professional lighting fixtures and drivers can be configured to activate a fixed brightness level when the signal is lost. This can be set via RDM or manually on the device.
  2. Activation of a Preset Scene via a Backup Controller 🔄
    A backup controller with its own scenario can be integrated into the system. If communication with the primary controller fails, the backup controller automatically triggers an emergency scene (e.g., 30% brightness across all channels).
  3. Hardware DMX Failover 🔌
    Certain DMX splitters (e.g., from Sundrax) support automatic switching between primary and backup inputs. If the primary input loses its signal, the system instantly shifts to the backup.
  4. Local Autonomous Mode in Devices 🌐
    Some architectural lighting fixtures can operate in a local scenario mode, independent of the central system. This is especially valuable for remote facilities.
Engineer adjusting DMX lighting control panel


How to Ensure DMX Reliability in Critical Systems 🔧

Use splitters with failover functionality between two DMX inputs

Employ controllers with backup power options (e.g., UPS or PoE)

Configure devices for an emergency scene in case of signal loss (via RDM or DIP switches)

Implement DMX network monitoring (e.g., via the MONARQ system)

Opinion of the Sundrax Engineer 💬

One of the biggest mistakes is relying solely on the controller. It’s crucial to plan for the behavior of lighting fixtures when no signal is present. Properly configured failover, local scenes, or backup power can save the entire system in an emergency.

If you’re designing an architectural or theatrical installation and want it to remain fully operational under any conditions, Sundrax engineers can help implement a reliable emergency scenario.
Contact for consultation: Contact Us 📞

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