Allen & Heath GPIO Switching Interface

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GPIO is a general purpose IO switching interface for control integration of an AHM-64 matrix processor or dLive/Avantis mixing system and 3rd party hardware, offering 8 opto-isolated inputs and 8 normally open (N/O) relay outputs on Phoenix connectors in addition to 2x +10V DC outputs.

The unit can be installed in a 19” rack (1u / ½ width) or can be operated freestanding, and up to 8 GPIO modules can be connected to a dLive system – directly or via a 100Mb/s network switch – using Cat5 cable.

GPIO functions are programmed using AHM System Manager or dLive Director software (PC or Mac), or via an Avantis mixer or dLive Surface, and can suit a number of applications including EVAC (alarm / system mute), broadcast (on air lights, fader start logic) and theatre automation (curtains, lights).


  • Up to 8 networked GPIO units can be added to a dLive/Avantis system
  • Networked Cat5 connection to Avantis mixer, dLive MixRack or Surface (<100m)
  • 8 opto-isolated inputs
  • 8 normally open (N/O) relay outputs, one of them configurable to Normally Closed output (N/C)
  • Industry standard Phoenix connectors
  • Freestanding or rack-mount (1u / ½ Width) operation
  • PoE (IEEE 802.3af-2003) compliant
  • IO parameters configured via Avantis mixer, or dLive Surface or Director
  • 2 10V outputs (500mA max)