Thanks for replying.
I have gone to the CNB web site and a few other sites and cannot find much information or even a user manual on the B2760N and B2760VNF. Based on this I have find I have more questions.
On the B2760VNF, how do you adjust the focal length? I assume it is done manually at the camera at the time of installation for the field of view you want. Is that correct?
I do not see a temperature specification but I did find in the manual for the B2310N that its temperature range is -10C to 50C (14F to 122F). I assume the same range would apply to the B2760N since they are very similar. Our nights can be much colder.
What happens if the low temperature spec is exceeded while the unit is under power? Does it malfunction during the period the low temperature limit is exceeded but returns to normal when the temperature rises, or is it permanently damaged.
Along those same lines, in some pictures the housing looks black and in others silver. If it is black, I could easily see the internal temperature of the camera exceeding 122F in normal use outside in the sun during the summer. Again I would ask, what happens if the temperature limit is exceeded while the unit is under power. Permanent change or temporary change?
I could find nothing on “What is in the boxâ€