A network video recorder (NVR) is a device that includes software. All videos shot by cameras connected to the network will be gathered and stored by this system.

1. What is NVR? and their types of NVR?
A network video recorder (NVR) is a device that includes software. All videos shot by cameras
connected to the network will be gathered and stored by this system. These videos are recorded
by NVR onto mass storage devices. It lacks specialised video capture hardware, in contrast to
other storage devices, and the software is run on a separate device. NVRs are frequently used
with IP video surveillance systems, and they may stream audio and video data over a single
cable. Hence ICFix Service provides CCTV training courses in Chennai.
Types of Network Video Recorders: Depending on how they are powered, network video
recorders (NVR) can be divided into two categories.
PoE NVR: PoE NVR has PoE ports and is only able to work with cameras that adhere to the
PoE standards. These cameras are connected to the NVR's PoE port. These recorders don't
need a different adapter. A CAT 5E/6 cable can be used to link the camera to the NVR. This will
provide power to the camera and enable data, audio, and video transmission via a single wire.
Non-PoE NVR: These NVRs lack ports on the rear panel for attaching the camera. To connect
to the network camera, you need a PoE switch or external power supply. The majority of
non-PoE NVRs have built-in scan features that can locate the network's cameras.
With or without a Power over Ethernet (PoE) or Non-PoE switch, NVR can be configured. With
cameras that support PoE, PoE switches are used. There are no separate power adapters
needed for the cameras because they are connected to the NVR's PoE ports. Models without
PoE don't have any connectors for connecting cameras. They do, however, include an internal
scan functionality that can scan cameras connected to the same network. PoE models also
employ the scan feature.
You will need a few parts and accessories, including a power cable, an Ethernet cable, SATA
cables, security screws, and a power supply cable for hard drive installation, to configure the
NVR for IP camera on the network using a PoE switch. The majority of manufacturers offer
technical support for the connection procedure or include an easy-to-follow instruction booklet
with the product and its accessories.
NVR and digital video recorders (DVR) are extremely similar. While NVR is typically used with
IP cameras, DVR is typically used with analogue cameras. It functions essentially as an IP
camera's DVR.
Ethernet switches for IP surveillance are available in a variety of configurations. A hardware
configuration sets the stage for configuration. You can proceed with the hardware configuration
as follows:

2. ● Connect the Ethernet wire at the rear of the NVR using the one you took from the router.
Verify the NVR's Internet connection.
● Ethernet cables should be used to connect IP cameras to PoE NVR. The NVR can easily
power the IP cameras because it is PoE technology enabled.
● Use a VGA or an HDMI cable to connect the NVR to the TV or monitor. Make sure you
connect the TV or monitor using the appropriate input—VGA, HDMI 1, or HDMI 2.
When these steps are correctly carried out, connecting an NVR and an IP camera is simple. The
next phase in configuration is software setup, which can be completed quickly by adhering to
the manufacturer's instructions.
The back panel of an NVR without a PoE switch is devoid of Ethernet ports. Each IP camera is
powered by an external power supply or an external PoE switch. Similar to NVR with a PoE
switch, hardware configuration is the first step in configuring NVR for IP camera without a PoE
switch. Here's what to do next:
● Use an Ethernet wire to link the router's LAN port to the external PoE switch. The
non-PoE NVR and router should then be connected.
● All IP cameras should be connected to the PoE switch's RJ45 ports using Ethernet
cables. The PoE switch will handle video transmission in addition to providing power.
● Connect the monitor and NVR with an HDMI or VGA connection. Always choose the
appropriate input when creating a connection.
Only after users add the cameras to the NVR will recording be made possible. By using the
instructions in the user handbook as a guide, this is simple to accomplish.
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