The three primary components of a typical Physical Security System are:
- Access Control: The component of a security system that allows a user entry to a physical space or controls who is permitted to obtain specific types of data, information, or usage. Access Control Systems typically require some type of authentication to verify authorization for access.
- Security/Surveillance: Security cameras, also often referred to as Closed-Circuit Television (CCTV) systems essentially function as video recorders which transmit video/data to a specific pre-determined receiver. Whereas Surveillance systems normally work on an IP network which transmits the signal to a remote location.
- Monitoring/Testing: This refers to collecting and analyzing information to detect suspicious behaviors and/or unauthorized access. System testing is used to ensure the system is functioning properly.