This is a small circuit (pre-assembled) to trigger Panasonic cameras.
The Shuttercable can be connected to one of the transistor outputs of the FlightCtrl through a switch operated via a servo output or the optocoupler part of this shutter.
To shut, you just need to connect together the "shutter" (red) and the "high" (marroon) wires.
To focus, you just need to connect together the "focus" (orange) and the "high" (marroon) wires.
Scope of delivery
This cable is not made to operate directly connected to a radio-controlled receiver output, nor to any other component working with PPM/PWN signal.
This cable is a shutter (for shooting pictures). It is not foreseen to start or stop the video, nor to vary the zoom.