How does the reader communicate with the door lock.
Card scan door locks.
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With a good system the whole process takes less than a second.
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Many organizations utilize technology cards for employee badges to track and authorize access to restricted areas.
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The smart access control reader will be wired to an electric lock on your door and it will send a signal to the lock to start an unlock event.
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Once the reader recognizes the access credential it then communicates with the door lock.