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The Card Access Control system is a security device which records essential details, such as who has entered each area, at what time and through which entry, and stores this information to a file.
Working
The working of Card Access Control system is based on electronic door-locking mechanism that requires a card reader and valid cards to access the area.
Usually, the card reader is fitted on the door and cards are issued to all persons who are permitted to enter the area. Each card issued to users is programmed in such a way that user would be only able to use the card in one particular area. To enter an area or zone, users must swipe their card in the card reader fitted near the door. As soon as the card is swiped, the door`s electronic system unlocks door for some fixed amount of time so that the person could get inside the controlled area.
After some time, like 30 seconds, the electronic system re-locks the door thereby preventing people without proper identity. If the door remains open for too long, or does not close completely, a local buzzer sounds, followed by an transmission of alarm signal to the required place like police station. To silence the buzzer, simply close the door. Hence, only persons having valid cards may get entry in a particular zone
Applications:
Card Access Control systems may be installed in offices, classrooms, labs or buildings.
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