I want to connect a Z Wave dry contact sensor to my NVR5216-16P-4KS2E. If this is possible. In software, web or PSS client, It allows a selection of either alarm 1 or 2. I can't figure out the labeling logic on the back of the NVR for alarm connections. Is C1 a normally closed connection for alarm 1 and the first connector on the top row? Is NO1 a normally open connection for alarm 1, second position on the top row? I put a meter on it and the two grounds are on the bottom row at position 3 and 6. I found no continuity with any other connector looking for the normally closed pin. What are connections A and B? And what are the other connections on the bottom row? I may have to work on the software end before I can get it to work and just need to know that I have the hardware connected properly. Does the NC have to be set up in software to be energized and that is why I can't find it? Any help appreciated.