Hi, i'm from brazil, and i have a problem, i hve a dvr system with 16 cameras and 1 souce 12v/10a to all cameras, and 1 camera stay with a blank image late a time, when i turn off the energy of the camera and turn on , the camera image came back. what it must be? sorry my poor english.

I always like to keep a spare small monitor for checking individual camera's, just in case there is a problem with the DVR input. But you can just as easily swap the camera feed with a known working input.

It's a process of elimination. Try replacing, with a known working
1. Power Supply/cord
2. Data cord
3. Camera

It could well be a bad camera. It happens.

Do you know how much current the cameras are pulling? Have we exceeded 8 amps for all of the cameras? (80% of the power supply)

I second the thought that the camera is not getting enough "energy".

Is this the camera that is the farthest away from the power supply?

camera always power supplied with 12VDC/24VAC. i think the camera donot get enough energy. as some camera have wider range power flexibility,some not. maybe also there is a problem with the power supply board! need check individually.

Charley

Torch Security Co.,Ltd