This power supply is only possible if the IP camera supports this type of power supply and if your network equipment (router or switch) can provide this type of power. PoE - enables data transmission and power supply via a single twisted pair. Power supply from an unsuitable power source will damage the camera. There are 2 types of power supply for IP cameras:Ī 12 VD power supply is normally required to power an IP camera, but this value may vary. Whether or not a LAN is present, the camera must be powered. If it is not possible to provide a LAN cable to the place where the camera is installed, you should buy a camera with built-in WI-FI. The IP camera requires a connection to the local network, in simple words, to a router. When selecting an IP camera, pay attention to the presence of a LAN cable or UTP cable at the camera site. Therefore, for rooms that are installed at low height, cameras with 2.8mm focal length are standard, which corresponds to 90°/105° viewing angle. These two parameters are closely related, the shorter the focal length of the lens, the wider the angle of view of the camera.Ī wide angle of view of the camera allows you to record many objects near the camera and cover a large area, but keep in mind objects that are far away will be difficult to see. Today, cameras with a resolution of 2-3 MP are considered standard. Choosing a camera with the highest resolution may prove to be an unjustified waste. However, this parameter directly affects the price, you should not immediately buy a camera with the highest resolution available. Resolution This is the most important feature of every camera, the higher the resolution, the more details we can see on the recording. The NVR can be connected to the Internet, so we have the ability to view live camera footage from anywhere using a laptop or a smartphone. The PoE switch significantly simplifies installation. In this case, video transmission from monitoring cameras does not require conversion from analog to digital format. In an IP camera system - the devices are connected directly to the network and the video is recorded by a network video recorder (NVR). Most DVRs can also be connected to a router, allowing you to watch security cameras over the Internet from anywhere in the world. All depending on how many cameras we want to connect to them.
DVR ( Digital Video Recorder - it is a digital recorder, a device that allows to record video captured by cameras) is available in different types: 4 channel, 8 channel, and 16 channel. The videos can be stored for several days or weeks (depending on the capacity). All video recordings from the cameras are stored on the hard disk of the recorder. In an analog system, the monitoring cameras are connected to the recorder via a coaxial cable.
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