?:definition
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Keypads designed to control access to cabinets and/or rooms. These devices typically consist of a sturdy, mechanical and/or electromechanical wall- or door-mounted grid of keys arranged for efficient entry of data (alphabetic, numeric, alphanumeric, symbol), that are pressed by the user; the keypads are usually coupled to locking mechanisms. Keypads intended to permit access to rooms (e.g., through electric-controlled doors) and/or other enclosures (e.g., cabinets) have a different entry code for each user; they are frequently part of identification and security and/or automation (e.g., pharmacy, laboratory, radiology) systems.
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