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87Fail Safe and Fail Secure Electric Locking Devices
Definition Basically: Fail Safe = power off, it's unlocked Fail Secure = power off, it's locked Electric locking devices include: Electric strikes Electromagnetic locks Electromechanical locks ...
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80How to Survey a Job Site for Electric Locking
An access control system that is hard wired and/or centrally controlled is nothing more than a fancy electrical switch that is used to turn some kind of electric locking device on and off. When you present...
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