| No. A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
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Facility Codes The first part of the ID number on some cards, providing a higher degree of security against a duplicate card number being used in a system. |
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Fail Safe Lock A lock that is in the unlatched or unlocked state when the unit is not energized. |
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Fail Secure Lock (Also known as Non-Fail Safe.) A lock that is in the latched or locked state when the unit is not energized. |
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FCC An acronym for Federal Communications Commission. |