If you have trouble in operating in your camera, refer to the following.
Check if the power supply is DC12V.
Check if RS-485 communication cable is connected correctly.
Check camera ID setting.
Check the termination.
Check if all the cables are connected correctly.
Check if the monitor is adjusted correctly.
Check if video signal line is cut.
Adjust the monitor status.
Abnormal camera
Operation status
Check if voltage level is out of the specification.
Check the termination.
Check if there is dust on the lens.
Adjust the monitor status.
If excessive light is seen on a screen, change the camera
angle or location.
Adjust the lens focus again.