ATS Wiegand 30bit

Everything you need to understand ATS Wiegand 30bit

Card format Overview

A proprietary 30-bit card format used in access control systems, featuring a unique structure composed of 12-bit site code and 16-bit card number, and 2 parity bits (even and odd), allowing for easy management and avoiding card number duplication for secure, contactless access.

ATS Wiegand 30bit format properties

Site Code

12 bits. The facility code range is 0 to 4,095.

Card Number

16 bits. A unique serial number (0-65,535) for each card within that facility code.

Even parity

Even Parity for Even parity over bits 1-11.

Odd parity

Odd Parity for Odd parity over bits 13-28.

Generate examples

Put in the values for this card format, we'll generate the results in a few different formats.

Here's your example

The API that turns phones into key fobs.