What is a network video recorder (NVR)?

InfraKids Fri, 11/14/2014 - 07:58

A network video recorder (NVR) is a hardware device that records video in a digital format to a disk drive, USB flash drive, SD memory card or other mass storage device. An NVR contains no dedicated video capture hardware. However, the software is typically run on a dedicated device, usually with an embedded operating system. An NVR is typically deployed in an IP video surveillance system.

Network video recorders are distinct from digital video recorders (DVR) as their input is from a network rather than a direct connection to a video capture card or tuner or CCTV camera. Video on a DVR is encoded and processed at the DVR, while video on an NVR is encoded and processed at the IP camera, then streamed to the NVR for storage or remote viewing.