Access control systems are used to regulate which individuals has access to certain areas. There are 4 parts to it which are credentials, readers, control panel, and door locks. Credentials include: magnetic strips, fingerprint fob, pin, or a smartphone; Readers include a card reader, fingerprint scanner, or a keypad. Once someone has entered their credentials into a reader it is then converted into a unique ID number. Once the unique ID number is made, it is then sent to a control panel that checks to see if it is one of the approved white listed IDs, if it is one of the white listed IDs the door lock will unlock allowing the person entry in the area.
Infographic Source: https://getsafeandsound.com/2019/06/how-access-control-systems-work-infographic/
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