Keyswitches are switches that can be activated only by keys, usually used in businesses where only the management should have access to the switch's functions.
It is also very useful to be able to have only one person with the ability to operate a switch, such as in alarm systems where the key will disarm the alarm.
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key switch — n. a switch operated by a keyed lock mechanism, which may be an integral part of the switch assembly … Locksmith dictionary
Switch — For other uses, see Switch (disambiguation). Electrical switches. Top, left to right: circuit breaker, mercury switch, wafer switch, DIP switch, surface mount switch, reed switch. Bottom, left to right: wall switch (U.S. style), miniature toggle… … Wikipedia
Switch KVM — Switch KVM. Un switch KVM (Keyboard Video Mouse) es un dispositivo de conmutación que permite el control de distintos equipos informáticos con un sólo monitor, un único teclado y un único ratón. Este dispositivo nos permite dotar al puesto de… … Wikipedia Español
Key punch — A key punch is a device for entering data into punched cards by precisely punching holes at locations designated by the keys struck by the operator. Early keypunches were manual devices. Later keypunches were mechanized, often resembled a small… … Wikipedia
switch — switch1 [ swıtʃ ] verb *** 1. ) intransitive or transitive to change from one thing to another, or make something do this: Then he switched sides and turned against his former allies. We switched lanes and accelerated toward the junction. switch… … Usage of the words and phrases in modern English
switch — I UK [swɪtʃ] / US verb Word forms switch : present tense I/you/we/they switch he/she/it switches present participle switching past tense switched past participle switched *** 1) [intransitive/transitive] to change from one thing to another, or to … English dictionary
Key (lock) — A cut key A key is an instrument that is used to operate a lock. A typical key consists of two parts: the blade, which slides into the keyway of the lock and distinguishes between different keys, and the bow, which is left protruding so that… … Wikipedia
switch*/*/ — [swɪtʃ] verb I 1) [I/T] to change from one thing to another, or to make something do this He used to vote Conservative, but he switched to Labour in 1997.[/ex] Once you have learned the basics of word processing, switching between different… … Dictionary for writing and speaking English
key — I. noun Etymology: Middle English, from Old English cǣg; akin to Old Frisian kēi key Date: before 12th century 1. a. a usually metal instrument by which the bolt of a lock is turned b. any of various devices having the form or function of such a… … New Collegiate Dictionary
Key — 1. n. & v. n. (pl. keys) 1 an instrument, usu. of metal, for moving the bolt of a lock forwards or backwards to lock or unlock. 2 a similar implement for operating a switch in the form of a lock. 3 an instrument for grasping screws, pegs, nuts,… … Useful english dictionary
