What is a card access system?
I was talking to my home security company representative and I told him I had read about a car access system, and keyless entry for the home.
He asked me if I had ever been to a hotel? I chuckled and told him I had been to them many times.
He told me the small credit card that you swipe to get into your home, is a card access system. They have cards for inside buildings to get into certain rooms, and all those cards are preprogrammed. Although it seems like a simple process; waving the access card over the black box, or putting it in the slot, the receiver detects and confirms the credentials and opens the door. There are many components that make up the card access system. You must have a key card or key that has all of your unique credential programmed into it. The card reader will access those credentials and pass them to the controller. The controller will then authenticate the card and compare the credentials with the permissions for this user. If the door unlocks, that person has permission to enter that room. If the door doesn’t unlock, the person who is trying to enter the room doesn’t have permission. I couldn’t believe that a small key fob or card could hold enough information to keep a thief or someone looking to do harm, from entering a room. A card access system was a wonderful way to obtain more security. If keyless entry in the home was part of a card access system, I wanted it installed.