Keyscan C15001 - Bit Format Details - AccessGrid

Keyscan C15001

Everything you need to understand Keyscan C15001

Card format Overview

A proprietary 36-bit card format used in access control systems, featuring a unique structure composed of 8-bit site code, 16-bit card number, and 10-bit oem, and 2 parity bits (even and odd), allowing for easy management and avoiding card number duplication for secure, contactless access.

Keyscan C15001 format properties

Site Code

8 bits. The facility code range is 0 to 255.

Card Number

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

OEM

10-bit OEM code.

Even parity

Even Parity for Even parity over bits 1-18.

Odd parity

Odd Parity for Odd parity over bits 19-35.

Generate examples

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

Site Code

Card Number

OEM

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Here's your example

Format Value
Hex C8C800C8
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Decimal 3368550600
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Binary 000011001000110010000000000011001000
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The API that turns phones into key fobs.