The focus/iris remote comes out on a 4-pole/3.5mm plug.
D is the ring and A,B,C are the contacts inwards to the tip.
The voltage on B is the Focus – 0V is near and 2V is far.
When D is open the cam is auto-iris, when D is GND the cam is
manual-iris.
The voltage on C is the iris -0V is open and 2V is closed.
The zoom/s.s is a 3-pole jack.
C is the ring and A the tip.
Every time A is grounded recording starts or stops.
B is the zoom voltage also between 0V and 2V giving a variable
zoom speed.
C is connected to the ground in the camera
Hope this can help you. I am not aware of any commercial kit
that can operate at that distance this camera. The best for short control are Bebop from Germany.