What is a NVR?

A network video recorder (NVR) is a specialized computer system that that records video in a digital format to a hard disk, mass storage device or cloud storage. An NVR is commonly deployed in an Internet Protocol (IP) cameras system.

NVRs are often mistaken as DVRs, but they are different. A NVR input is from a network rather than a direct connection to a video capture card or tuner. Video on a DVR is encoded and processed at the DVR, while video on an NVR is encoded and processed at the camera, then transferred to the NVR for storage or remote viewing. Additional processing may be done at the NVR, such as further compression or tagging with metadata.

NVR home surveillance systems are generally wireless, tend to be easy to set up, can be accessed through remotely, and allow the user to be notified if an customized alarm is triggered in response to certain activity.

NVRs come in various sizes. Typically you will see these systems in 4, 8, 16 and 32 channel. Having 16 channels means it allows 16 cameras recording on one system. Most people tend to choose these recorders because of the large capacity of camera channels and growing room they can use.


Main Features of NVR

IP Cameras Integration

NVRs work with internet protocol (IP) cameras that can send and receive information across a network, and record high-quality visual and audio footage. IP cameras are capable of encoding and processing video data by itself, processed data is then streamed to the NVR for storing and viewing of footage.

Remote Access

NVRs are usually connected to the internet, thus live footage or recorded footage can be viewed remotely via smartphones or applications.

Wireless Connections

In an NVR system, each IP camera is connected to a network, either wirelessly or via Cat5e and Cat6 ethernet cables.


Benefits of NVR

High-Resolution Image

The image quality typically recorded by NVR systems are superior to analog DVR cameras.

Increased Flexibility

IP cameras and NVRs provide more options in terms of installation locations, then businesses can determine whether wired or wireless installation will be more ideal.

Intelligent Video Analytics

Some IP cameras include advanced features, such as facial recognition, motion detection and video structuralization. With cloud storage solutions, NVR can also be configured with password protection, two-step verification and encryption to prevent unauthorized access from retrieving or modifying informations.

Power Over Ethernet (POE)
Cat5e and Cat6 Ethernet cables can power IP cameras, which cuts down on the amount of wiring that is needed.