Grass Valley Kayak HD v.6.9.3 - Manual (Page 495)

Kayak — User Manual 495
Installation Menus
GPO Index Card
Index card for selecting and modifying the GPO parameters.
Figure 408. Sidepanel – Index Card GPO
Select Modify to change the parameters:
Shape: Pulse / Static
Idle State: Open / Closed
Pulse Duration: Enter the preroll time in frames (max 255 frames)
Attached to: Assign a fixed video source to the 32 GPI channel