EN
NANOPW - NANOPB
Wiegand 125 Khz proximity reader
INSTALLATION MANUAL
6 cdvigroup.com
44-BIT WIEGAND FORMAT OUTPUT
Data: 10 digit code number hexadecimal MSByte fi rst.
Each hexadecimal digit = 4 bit, MSBit fi rst.
LRC: 4 bit = OR restricted in between the digit of the data, MSBit fi rst.
Bit 1 to bit 40 Bit 41 to bit 44
Data MSBit fi rst LRC
Example A: EM badge hexadecimal code: 01001950C3.
0000 0001 0000 0000 0001 1001 0101 0000 1100 0011 0011
0 1 0 0 1 9 5 0 C 3 3
The code number of the card is: 01001950C3 in hexadecimal code.
30-BIT WIEGAND OUTPUT
1 - First parity: 1 bit – even parity for the fi rst 14-bit
Code: A code is formed from 7 half byte.
Each byte is transferred from bit 7 to bit 0.
2 - Second parity: odd parity for the last 14-bit.
Bit 1 Bit 2 to bit 29 Bit 30
Even Parity from bit 2 to bit 15 Data (28-bit) Odd Parity from bit 16 to bit 29
Example: EM badge hexadecimal code: 0102166A37.
1 0010 0001 0110 0110 1010 0011 0111 1
Parity 1 2 1 6 6 A 3 7 Parity 2
The code transmitted is in hexadecimal format 2166A37.
Parity 1: 0 if the number of 1 in bit 2 to bit 15 is even,
1 if the number of 1 in bit 2 to bit 15 is odd,
Parity 2: 0 if the number of 1 in bit 16 to bit 29 is odd,
1 if the number of 1 in bit 16 to bit 29 is even.
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