In the A3 / N3 controllers on the 3pin outputs F1-F8, all GND outputs are on the same bus and VCC are also on the same bus.
And only signal pins - separately.
In default VCC pin not have power.
It is enough to provide power submit to any pin VCC + 5v from any UBEC so that all outputs F1-F8 appeared power
for reference, S900 + E1200 + N3 + LB2 + gremsy t3 gimbal and nikon d850 camera.
Hi I have m600 pro and ronin mx plus d800 for still can you explain what i need to buy and how to fix for a newbie. I don't mind throwing you some money just want an easy explained way to remote shutter the d800.