Hi,
It certainly should work.
I have two sites with IP CCTV, the second of which has a DS-7604NI-K1/4P which is brand new (upgraded to latest firmware V4.72.109 build 230107) and two DS-2CD2146G2-ISU cameras.
Even though the NVR has four PoE ports on the back, I don't use them. Instead, I...