Card Reader Circuit

Card Reader Circuit

Organizations are commonly using access control systems which require employees to access secure areas of buildings by using proximity cards to gain approval. The proximity card is provided to each employee and it contains a unique identifier that is read by a card reader and transmitted to the access control software in the central computer. The internal database that is housed in the computer where the software resides is the guide that the access control software uses to allow access or deny the request.

Prox card - The Proximity card is similar to a mag stripe card in that it is a plastic card. Instead of putting the information on a mag stripe, the card is embedded with a computer chip. The computer chip is able to house data that is transmitted to the card reader. Sometimes the card is swiped, but often the card is able to be "read" by the reader because of the proximity of the card and reader. This allows the card to remain in a purse or wallet and still provide the needed transmission to access the door.

Card Reader Circuit