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DefendX Systems

System architecture

How DefendX Works

A five-level architecture that keeps existing fire alarm panels in place and adds supervised network monitoring, physical annunciation, programmable outputs and recorded history.

Fire Panel 1Relay contacts + 24 VDefendX NodeDXN-001Fire Panel 2Relay contacts + 24 VDefendX NodeDXN-002Fire Panel 3Relay contacts + 24 VDefendX NodeDXN-003Fire Panel 4Relay contacts + 24 VDefendX NodeDXN-004EthernetSwitch / CAT6DefendX M32128 LED · 16 relaysControl room PCWall displayTabletMobile device
Concept system visualization — indicative architecture

Interactive diagram

Explore Each Architecture Level

Level 1

Fire alarm panels

Existing fire alarm control panels from different manufacturers. No change is made to the approved detection and alarm wiring; only the available volt-free relay contacts and the 24 V auxiliary output are used.

Failure and event scenarios

How the System Responds

Fire event
  1. 1Panel fire relay closes
  2. 2Node debounces and transmits FIRE_ACTIVE
  3. 3M32 lights the panel Fire LED and starts the buzzer
  4. 4Common Fire relay and assigned group relay activate
  5. 5All web clients update; event recorded with timestamp

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