Facility Code
Coded data in access control cards that identifies the location of the access control system.

Fail-Safe Door
A fail-safe door is one that if the power should fail at that door, the door will automatically unlock allowing exit and entrance. A fail-safe door ensures people will be able to exit a secure area through that door in the case of an emergency.

Fail-Safe Lockset
A lockset that is normally locked when the power is ON, and automatically unlocks when the power fails. See Fail-Safe Door.

Fail-Secure Door
A fail-secure door is one that if the power should fail at that door, the door will automatically lock and not allow entrance, but will continue to allow exit. A fail-secure door ensures a secure area remains secure regardless of the situation.

Fail-Secure Lockset
A lockset that is normally unlocked when the power is ON, and automatically locks when the power fails. See Fail-Secure Door.

False Alarm
An alarm signal generated without an existing alarm condition.

Fingerprint Pattern Area
The identifying characteristics of a fingerprint, consisting of the arches, loops, and whorls in the fingerprint.

Fingerprint Reader
A biometric reader that identifies a person based on the person's fingerprint pattern.