Interlogix TVB-5301 Installation Manual page 44

Drill the three screw holes on the ceiling in the mounting
surface using with the supplied drill template. Use
number "1" as reference.
4. To route the cable harness through the mounting surface,
cut a cable access hole in the mounting surface,
referencing the letter "A" on the drill template. Skip this
step if you want to route the cables on the surface.
5. Attach the camera to the mounting surface. Secure the
camera with the supplied screws and anchors, as shown
below.
38 Installation Guide