For all Gates we use Hiland P5141 Photocells. They are connected on Gate's control board like this:

  

From 12V-24V to 24 (Nr. 14) and COM (Nr. 13)

Photo of connection between Parklio Gate's control board and Photocells is avliable at the following link: https://file.parklio.co/file/bdj1he5baed94868547ffa5a59228447b2c49

From Photo to COM (Nr. 25) i FT(Nr. 24)

  

Photo of connection between Parklio Gate's control board sygnal port and Photocells is avliable at the following link: https://file.parklio.co/file/bdj1he0a81e50bce742f29f752e5acaf6b797