ProAudio: 12V Triggers (PuTTY / Direct Commands)

The 12V trigger outputs on a ProAudio switch send a 12V signal to an external device - commonly used to turn on an amplifier or projector automatically when a specific zone is activated.

Two Ways to Control a Trigger

Triggers can be controlled two ways:

• Directly, using STRG - manually force a trigger on or off.
• By zone power state, using TRGZ - link a trigger to one or more zones, so it turns on automatically when any linked zone is powered on, and off once all linked zones are powered off.

Controlling a Trigger Directly

^STRG @1,1$    ; force trigger 1 on 
^STRG @1,0$    ; force trigger 1 off

STRG accepts three settings:

Linking a Zone to a Trigger

First, set the trigger's mode to zone-controlled:

^STRG @1,2$    ; trigger 1 is controlled by zone power state

Then link one or more zones to it:

^TRGZ @1,1$    ; zone 1 controls trigger 1

Linking Multiple Zones to One Trigger

More than one zone can be linked to the same trigger. The trigger turns on when any linked zone is powered on, and only turns off once all linked zones are powered off.

^TRGZ @1,1$    ; zone 1 controls trigger 1 
^TRGZ @2,1$    ; zone 2 also controls trigger 1

Coax and Optical Outputs

There's no direct way to fire a 12V trigger from a Coaxial or Optical output's power state. A workaround is to set a Digital Zone to mirror an Analog Zone, then assign the trigger to that Analog Zone instead — the trigger will fire whenever the mirrored analog zone is powered on. 

This does mean dedicating an analog zone to the mirror.

Backing Up Trigger Settings

^SS 512$    ; backup zone audio parameters, including trigger links

Related Articles

• Setting Up 12V Triggers (Config Tool)
• Getting Started — ProAudio
• Downloading and Connecting the ProAudio Config Tool (Windows)