What system uses security cameras to monitor facility activity?

The system that utilizes security cameras to monitor facility activity is closed-circuit television (CCTV). This technology operates by transmitting video signals from cameras directly to a specific set of monitors, creating a secure system that is accessible only to authorized personnel. CCTV is widely employed in various facilities to enhance security, deter crime, and provide real-time footage of activities within the premises.

This system's closed nature, which restricts the access to the video feed, differentiates it from other systems such as open surveillance systems, which may be publicly accessible, or live-feed security networks, which might not function exclusively through the traditional setup of cameras and monitors as seen in CCTV installations. Remote monitoring systems can utilize various technologies but may not necessarily be limited to the direct camera-to-monitor setup typical of closed-circuit television. Therefore, CCTV's focused approach to surveillance provides a reliable and effective means of monitoring facilities.