It receives live video recordings and stores them in a compressed digital format in a hard disk, USB drive, SD cards or other digital storage mediums..
Although NVRs are used with IP security camera systems then can also be used to record video footage from analog cameras connected to it via IP encoders.
An NVR is easily set up. as there’s only one cable involved – the power cable. There are no more wires to hook up your cameras to.
It also allows for simultaneous recordings from as many cameras as the system supports.
One great advantage of a Network Video Recorder is it allows remote access of the recordings it stores. This means you can view recorded footage with your computer, mobile phone or tablet from anywhere there’s an Internet connection.
In a DVR video footage captured is processed to a digital file in the DVR.
In a system with an NVR, the video is compressed and processed in the IP camera and sent to the NVR, where it’s saved for viewing.
An NVR doesn’t require a video capture card. Also, NVRs don’t work with BNC analog CCTV systems.
One major drawback of a Network Video Recorder is it is totally reliant on an Internet connection. So, you must have a stable Internet connection if you’re to benefit from the advantages it offers.