"Key System" can refer to the following:
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Key System — The Key System (or Key Route) was a privately owned company which provided mass transit in the cities of Oakland, Berkeley, Alameda [ [http://findarticles.com/p/articles/mi qn4176/is 20030621/ai n14551761 Old Alameda s transit system was less… … Wikipedia
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
key system — The equipment utilized to provide the features associated with keysets, including the multipair cable, key service unit, and distribution frames … IT glossary of terms, acronyms and abbreviations
1A2 Key System — The 1A2 Key System is an analog multiline business key telephone system. Unlike more modern multiline systems, every telephone line serving a particular phone is wired into that phone, and electromechanical switches (the keys ) switch the lines… … Wikipedia
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
maison key system — n. [from the French, meaning house key system] a keying system in which one or more cylinders are operated by every key (or relatively large numbers of different keys) in the system; e.g., main entrances of apartment buildings operated by… … 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
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
