Notes: 
  The extended interface can be connected to alarm input/output interface, audio input/output 
interface, RS-485 interface, etc. 
  To  reset the default parameters to the camera, you need to  press and hold the RESET button 
and power on the camera. After the power on of the camera, you must still press and hold the 
Reset button for about 20 seconds 
Camera wiring Diagram: 
 
Figure 3-16 Wiring Diagram 
3.2.4  Installation 
Ceiling mounting: 
Steps: 
1.  Drill the screw holes on the ceiling with the supplied drilling template. If you need to route the 
cables from the bottom of the camera, cut a cable hole in the ceiling.