In a CCTV installation, what component is crucial for video recording?

The component essential for video recording in a CCTV installation is the Digital Video Recorder (DVR). The DVR serves as the central hub for storing video footage captured by the cameras. It not only records the video streams from multiple cameras but also enables playback of the recorded footage for review and analysis.

DVRs typically incorporate features such as scheduling for recording, motion detection alerts, and remote access capabilities, allowing users to view recordings or live feeds from various locations. This makes the DVR a vital component for any surveillance system, ensuring that all recorded video data is effectively stored and managed for future use.

Other components, such as monitors, video encoders, and power supplies, play supportive roles in the CCTV system. Monitors are used for viewing live footage, video encoders translate and compress video streams for transmission, and power supplies ensure that all components receive the necessary electricity. However, none of these elements fulfill the primary function of recording video, which solidifies the DVR's central importance in the installation.