On this example I will be using an AJA Gen10 Sync Generator.
The output of your generator will be connected to each A/V Binloop via the V-Sync input. If the frame rate of your video playback is set as 29.97 fps set your AJA Gen10 as follow:
Click the link below to learn more about V-Sync and SMPTE triggers.
How Do I Synchronize Multiple Binloops?