CDVI NANOPW Mode D'emploi page 6

INSTALLATION MANUAL
NANOPW - NANOPB
Wiegand 125 Khz proximity reader
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
Even Parity from bit 2 to bit 15
Example: EM badge hexadecimal code: 0102166A37.
1 0010
Parity 1 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.
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
Data MSBit fi rst
Example A: EM badge hexadecimal code: 01001950C3.
0000 0001 0000
0 1
The code number of the card is: 01001950C3 in hexadecimal code.
6
cdvigroup.com
Bit 2 to bit 29
0001 0110
1 6
0000 0001
0 0 1
Data (28-bit)
0110 1010
6 A
Bit 41 to bit 44
LRC
1001 0101
9 5
Bit 30
Odd Parity from bit 16 to bit 29
0011 0111
3 7
0000 1100 0011
0 C 3
EN
1
Parity 2
0011
3