master key system

  n.
   1. any keying arrangement which has two or more levels of keying
   2. a keying arrangement which has exactly two levels of keying

Locksmith dictionary . 2014.

Look at other dictionaries:

  • grand master key system —   n.    a master key system which has exactly three levels of keying …   Locksmith dictionary

  • great grand master key system —   n.    a master key system which has exactly four levels of keying …   Locksmith dictionary

  • great great grand master key system —   n.    a master key system which has five or more levels of keying …   Locksmith dictionary

  • key system schematic —   n.    a drawing with blocks utilizing keying symbols, usually illustrating the hierarchy of all keys within a master key system. It indicates the structure and total expansion of the system …   Locksmith dictionary

  • master key — n. key which can open all locks; (Computers) key which has the highest authorization on a system …   English contemporary dictionary

  • Maison key system — A Maison key system is a keying system that permits a lock to be opened with a number of unique, individual keys. Maison key systems are often found in apartment building common areas, such as main entrance or a laundry room where individual… …   Wikipedia

  • multiplex key system —   n.    1. a series of different key sections which may be used to expand a master key system by repeating bittings on additional key sections. The keys of one key section will not enter the keyway of another key section. This type of system… …   Locksmith dictionary

  • selective key system —   n.    a key system in which every key has the capability of being a master key. It is normally used for applications requiring a limited number of keys and extensive cross keying …   Locksmith dictionary

  • The Master Key — can refer to the following: * The Master Key (1901 book), a 1901 children s book by L. Frank Baum;Two film serials made by Universal Studios: * The Master Key (1914 serial), a 1914 film * The Master Key (1945 serial), a 1945 film;Other uses: *… …   Wikipedia

  • emergency master key —   n.    a special master key which usually operates all guestroom locks in a hotel master key system at all times, even in the shut out mode. This key may also act as a shut out key …   Locksmith dictionary

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