Cameras: CCTV systems consist of various types of cameras, including fixed cameras, PTZ (Pan-Tilt-Zoom) cameras, dome cameras, and bullet cameras. These cameras capture video footage of the monitored area.

Recording Devices: Recorded video footage is stored on recording devices such as DVRs (Digital Video Recorders) or NVRs (Network Video Recorders). These devices can store footage for later review and analysis.

Monitors: CCTV operators use monitors to view live video feeds from the cameras. Monitors can be located in control rooms or at various points where surveillance is required.

Cabling and Transmission: Video signals from cameras are transmitted using various methods, including coaxial cables, Ethernet cables, or wireless technology. IP cameras use network cables to transmit data to NVRs or other networked devices.

Power Supply: Cameras may require power, either from electrical outlets or via Power over Ethernet (PoE) technology for IP cameras.

Control Systems: In larger CCTV networks, there may be control systems that allow operators to manipulate PTZ cameras and adjust viewing angles remotely.

Storage and Data Management: Recorded video footage needs to be managed and stored efficiently. This may involve setting retention policies, archiving, and ensuring data security.

Remote Access: Many modern CCTV systems offer remote access via the internet or dedicated software applications. This allows authorized users to view live footage or access recorded videos from anywhere with an internet connection.

Analytics and Alerts: Some CCTV systems incorporate analytics software that can detect unusual activities, intrusions, or other predefined events and send alerts to operators or security personnel.

Integration: CCTV networks can be integrated with other security systems, such as access control systems, alarms, and intercoms, to provide a comprehensive security solution.