INTELLINET NETWORK IDC-862 Hardware Installation Guide - Manual (Page 6)

3) Attached the drill template to the wall. Drill three holes into the wall (two for
screws and one for the connection cable if you want to route cables through
conduit hole). Then push the supplied plastic anchors into the screw holes and
secure the plate with supplied screws.
4) Align the three holes on the base of camera with the two plastic anchors on the
wall or ceiling, insert the supplied screws to the corresponding hole and screw
them.
5) Adjust the angle of camera to aim the shooting area.