What is a common function of an access control system?

An access control system primarily serves to restrict unauthorized entry, which is a fundamental aspect of security management in various settings such as commercial buildings, government facilities, and residential areas. This function is achieved through the use of identification methods, including key cards, biometric scans, or passwords, that ensure only authorized individuals can gain physical access to certain areas.

While monitoring energy consumption, providing audio entertainment, and managing lighting systems may have their own respective systems or functions, they do not align directly with the primary purpose of an access control system. The essence of access control lies in protecting assets and ensuring that sensitive areas are kept secure from intruders, making it a crucial component in the overall security framework of any establishment.