Clear-Com V12PDDXY User Manual
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Figure 174: Example GPIO logic input wiring
In the above example, pressing the footswitch applies 5V DC from the panel between B1
and A1. This enables the detection of a logic input.
If logic input 1 has been configured in ECS / EHX to activate the Mic On/Off function the
footswitch could be used to control the panel microphone.
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V-Series Panels User Guide