With a DVR no as those are analog systems. If it is an IP system and NVR, then it should be possible, but you may need to manually enter the cameras into the NVR. You will also connect it to the WAN/LAN port and not one of the camera ports.
FYI - Swann had 2 OEMs recently for their equipment.
One was Hikvision OEM - which is better known here .. so easier to find info on Hikvision OEM products and how to get them to work well with your setup