While purchasing a security or surveillance system it is mandatory to make a choice between NVR and DVR. This is a major deciding factor, as the total cost, installation, video quality and many other factors of a surveillance system is largely based on this choice.

NVR and DVR are basically video recorders. NVR stands for Network Video Recorder and DVR stands for Digital Video Recorder. The fundamental differences between the two systems are associated with the process of video recording, the cameras and cables used. DVR use analog cameras and a chip within the recorder converts it into digital format, which is stored into an HDD or memory card. The connection between the recorder and the analog cameras are established with coaxial cables.

When it comes to NVR, it uses IP cameras which can be connected to the NVR through the internet. Other than WiFi  NVRs, there is also PoE NVRs that record videos from the network directly using Cat5 or Cat6 Ethernet cables with RJ45 plugs. The DVR systems are wired whereas NVR can be wireless. However, both the systems can work without internet.

Amphenol ICC offers various solutions for both NVRs and DVRs. Our USB 2.0 connector interface the recorders with the video outlets. SATA connectors bridge the hard disk drives with the recorder motherboards. Other connector solutions include cLGA, cStack, Lynx and Lynx QD to support different internal data transfer functions in these surveillance systems.

To sum up, both these systems has its own pros and cons. Though the quality of video was a major concern for DVRs compared to NVRs in the earlier days, improvements in the analog cameras have brought down the gap between the two systems in terms of video quality. Apart from that, NVRs are easier to install, however, they are expensive than DVRs. Hence it is important to decide among the factors that matter your requirements, before choosing the right system.