Proximity (prox) cards used in access control systems make it easier than ever to secure a building and monitor when cards are used – but do you actually know how these technology cards work?
How Prox Card Technology Works
Inside each prox card is a copper circuit and RFID radio antenna. This antenna sends your card info to the reader installed on a door, and if the card info matches a card registered with your system, it will unlock the door.
This process makes it faster for cardholders to enter your building because they don’t need to use a key to unlock the door, while allowing you to keep doors locked to limit access to secured areas.
Each card in your system has a unique card sequence or range number, so you can assign cards to employees and track when their cards are used.
Prox cards don’t have batteries, and the standard CR80 cards are the same size and thickness as a normal non-technology card, making them just as easy to use as a normal PVC ID card.
What You Need to Order Prox Cards
When you order prox cards, you’ll need three key pieces of information:
- The card format (most often 26-bit H10301)
- Your facility code (usually a number between 0 and 255)
- The card sequence or range number (the next set of card numbers in your system)
If you don’t know that information, contact our prox card experts for help. Please note that AlphaPass cards are custom coded to your system and not eligible for returns.
Shop all AlphaPass prox cards to get high-quality cards at a lower price.