11Check the specification of the products for the installation environment.Make sure the power supply is matched with your required voltage to avoid damage.If the product does not function properly, please contact your dealer or the nearest service center. Do not disassemble thecamera for repair or maintenance by yourself.Make sure that the wall is strong enough to withstand three times the weight of the camera.NOTE:For the camera that supports IR, you are required to pay attention to the following precautions to prevent IR reflection:Dust or grease on the dome cover will cause IR reflection. Please do not remove the dome cover film until the installationis finished. If there is dust or grease on the dome cover, clean the dome cover with clean soft cloth and isopropyl alcohol.Make sure that there is no reflective surface too close to the camera lens. The IR light from the camera may reflect backinto the lens causing reflection.The foam ring around the lens must be seated flush against the inner surface of the bubble to isolate the lens from the IRLEDS. Fasten the dome cover to camera body so that the foam ring and the dome cover are attached seamlessly.1. Ceiling MountingSteps:a) Drill the screw holes on the ceiling according to the drill template.b) For dome camera, loosen the set screws with a hex key (supplied) to remove the bubble.Drill TemplateHole A: for cables routed through the ceilingscrew hole 1: for Mounting Base111A