The document discusses network video recorders (NVRs), which are essential in IP video surveillance systems for recording and managing footage from IP cameras. It outlines the types of NVRs, including POE and non-POE options, and the operational dynamics of NVRs within surveillance systems. Additionally, it highlights key features, benefits, and the importance of selecting the right NVR to meet specific surveillance needs.

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Video Surveillance has been popular in recent years, bringing convenience to people's daily life, such as
remote video monitoring, facility protection, and loss prevention. Network video recorder (NVR) is used
in many surveillance systems by connecting with IP Cameras to provide images and videos. This article
discusses everything you need to know about NVR.
What is a Network Video Recorder?
A network video recorder (NVR) is a specialized computer system that includes a software
program. It is used in an IP video surveillance system to record video in a digital format to a disk
drive, USB flash drive, SD memory card, or other mass storage device.

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Types of Network Video Recorder
According to the functions of power over Ethernet (PoE), NVR has two types PoE NVR and
Non-PoE NVR types. PoE NVR is used with PoE-based IP cameras. The IP cameras are plugged into
the NVR's PoE ports and do not require a separate power adapter to work. Non-PoE NVR has no
Ethernet ports for IP cameras to connect to on the back panel but can add IP cameras with the
built-in scan function that finds IP cameras connected to the same network.
According to the number of channels, NVR is divided into 4/8/9/16/25/32/36/64-channel NVR,
etc.
How Does NVR Work in an IP Camera System?
The IP camera system consists of IP cameras, a network, and the NVR. NVR receives video footage
through a network data connection and store footage for review. NVR contains Ethernet ports
that users can connect to multiple cameras on one side. It can hook up the router, monitor, or
viewing station on the other side to show what happened. IP cameras capture and process video

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and audio data, while NVR helps to record videos and manage cameras. IP cameras connect to the
NVR using an ethernet cable.
Features and Benefits
An NVR provides the following features and benefits:
 Supports decoding H.265+/H.265/H.264+/H.264 video formats
 Up to 1ch @ 4K decoding capacity
 Up to 5MP/4K high-definition live view, storage and playback
 Up to 80/120 Mbps high incoming bandwidth ensures IP cameras can be connected
 1 HDMI and 1 VGA interface: both interfaces support independent video output
 1/2/8 HDD for continuous video recording
Applications
An NVR is used in CCTV and Surveillance, home, business, public safety, etc.

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Conclusion
Video surveillance is closely related to life. Therefore great importance should be attached to
choosing NVR with IP cameras to meet specific needs. Sun Telecom specializes in providing
one-stop total fiber optic solutions for all fiber optic application industries worldwide. Contact us
if any needs.