1. BNC (Bayonet Neill–Concelman Connector):
Use: BNC connectors are used to connect coaxial cables in CCTV systems, providing a secure, reliable connection.
Feature: The bayonet-style locking mechanism ensures the connection stays tight.
Application: Commonly used in analog CCTV cameras, signal transmitters, and other video equipment.
2. DC (Direct Current) Power Connector:
Use: DC connectors supply power to CCTV cameras and other low-voltage devices.
Feature: Available in various sizes (commonly 2.1mm or 2.5mm barrel connectors) to match the power needs of specific devices.
Application: Powers cameras and related equipment, usually from a central power source or power supply unit (PSU).
3. Hard Drive (HDD):
Use: A hard drive stores recorded video footage from CCTV cameras.
Feature: High-capacity drives (e. g. , 1TB, 2TB, or more) are preferred for CCTV systems to retain recordings over extended periods.
Application: Installed in DVR (Digital Video Recorder) or NVR (Network Video Recorder) systems to archive surveillance footage for playback and analysis.
