Nitgen NAC-2500 - Page 79

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2. Wiegand Output
 Output: MSB → LSB
 Even Parity: Odd number 1
 Odd Parity: Even number 1
2.1 Terminal mode <Access Controller>
- 26 Bit
P 8 Bit (facility code) 16 Bit (user ID) P
Even Parity Odd Parity
LSB MSB
- 34 Bit
P 16 Bit (facility code) 16 Bit (user ID) P
Even Parity Odd Parity
LSB MSB
2.2 Terminal mode <Reader>
Wiegand Input to be used without any change.