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Unlock time: When this time has elapsed since a user identification, the lock gets unlocked. 

Access: The act of entering and exiting rooms, buildings, zones, and areas by people, vehicles, and other objects.

Actuator: A turnstile, gate, boom barrier, or door fitted with an electromagnetic or electromechanical lock. Actuators are controlled by and send status information to controllers. 

Access Control System (ACS): A hardware and software suite for access control and management.

Reader: An electronic device for entering human-memorable PINs with the keypad or for reading PINs from the system's security tokens.

Access point: A point where access control is performed. An access point may be a door, a turnstile, a gate, or a boom barrier equipped with a reader, an electromechanical lock, or other access control devices.