Knowledge base 226: H10304 Card Format Overview
This article shows the HID 37-bit H10304 card format breakdown so you can add the format into your access control system.
Description | Facility Code | Card Number | Parity |
37-bit Tracked Format. Wiegand Format with customer-defined facility code. | 16 bits (0 – 65,535) Offset = 1 Data = 16 | 19 bits (0 – 524,287) Offset = 17 Data = 19 | 2 bits |
Format Breakdown:
PAAAAAAAAAAAAAAAABBBBBBBBBBBBBBBBBBBP
EXXXXXXXXXXXXXXXXXX••••••••••••••••••
••••••••••••••••••XXXXXXXXXXXXXXXXXXO
A = Facility Code bit
B = Card Number bit
C= Card Type
E = Even Parity bit
O = Odd Parity bit
X = Parity Basis bit
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