It’s an old Pelco dx8000. Strictly analog with only email and remote server linking through the internet.
Before I “downgrade” and buy old tech I was trolling to see if someone shares my situation and has a working system and uses Coaxitron.
I counted on Pelco C when I ran the wires to the poles in my yard, and would like to avoid more ladder work without knowing Pelco D works as well with a particular DVR.