Specifications

Chapter 10: AES I/O and HD Modules 129
GPIO Page
If a GPI input is detected by a GPIO module in the system, it puts an associated GPI number on the CAN bus. Each module in a
frame monitors for these GPI numbers and performs the programmed action if it reads that number on the CAN bus.
GPI Preset 1–8
A GPI input can be set to trigger a preset recall.
GPO Preset 1–8
A GPO output can be set to trigger when a preset is recalled.
Lock
A GPO output can be set to trigger when the module is locked.
Async
A GPO output can be set to trigger when the input is asynchronous.
HD
A GPO output can be set to trigger when an HD video input is detected.
HD944 Web Configuration GPIO page
Do not assign the same GPIO numbers to different functions because this incorrectly triggers multiple functions.