Contactless credentials are the most commonly used for access control systems, but while they look alike externally, important differences exist.
Choosing the correct one can be the difference between a secure facility and wasting significant money. Understanding how they operate and what their specifications mean is a big challenge.
In this guide, we cover the basic elements needed to specify the right contactless credentials, including:
- HID vs. NXP Credential Formats
- 125 kHz vs. 13.56 MHz Frequencies
- Facility Names
- Facility Codes
- Card ID/Serial Numbers
- ISO 14443A vs. 14443B
- Form Factors