Camera tower — upright camera on the inspection lane.
Camera 1 — overhead liner / top camera with the dome light on the first inspection conveyor.
Cameras 2–5 — four side cameras around the first inspection conveyor.
Camera 6 — after the flip track on the second inspection conveyor.
Before any belt change, mark and note the position of every camera and sensor so they go back on the same alignment. Clean a dirty lens with a lint-free cloth — never lubricate vision bearings.