User Guide| LQ Series 4.0
12.6 GPIO: Examples and step-by-step set up
12.6.1 Setting up a Partyline/2-Wire relay to a radio
(VOXtrigger).
This example shows how to send a GPO (General Purpose Output) trigger to a third
party radio when audio comes in from an Encore RS701 beltpack. This can be used
to open audio transmission on the radio; equivalent to pressing the Push To Talk
(PTT) button on the radio.
The GPO is triggered by LQ models that have a GPO port; LQ-4WG2, GQ-R2WG8
and LQ-R2W4+4WG4.
Note: For this configuration Link Group must already be established. See Creating a
Link-Group on page 48 for more information.
12.6.2
General set up outline
1. In port settings, on the device and port connected to the belpack, set the VOX
(audio detection) to trigger Network Control Event 1
2. On the device and port connected to the radio, set the GPO to trigger on
Network Control Event 1
3. Bring both ports together into a Channel
4. When audio comes in from the beltpack, the GPO will fire. You can test this relay
using the TESTbutton.
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