After hooking up 1 camera to test the DVR Recorder to see if it was working properly all of a sudden I see smoke coming out of the Camera.
I intermediately shut off power to system and then opened up camera junction box to find that one of the Baluns a device which converts coax to Cat 5 wiring had started to melt and burn .
But it was not .
now why this one particular supply did what it did and not the other ones in stock that's a good question which will need to be investigated and answered. if I do not get satisfactory answers from manufacturer I will be notifying CPSC over the matter .