Low cost is the main advantage of analog CCTV cameras. For the price of one average ip-camera, you can buy two or three analog ones. Analog cameras work only with an analog video recorder, on which the video signal is compressed and stored. The DVR can connect to the internet. Digital cameras (IP cameras) can work via the Internet directly, bypassing other equipment.
Analog video surveillance systems are still actively used. The main reason for their popularity is a large number of previously installed analog video surveillance systems and a low price.
