CDVI NANOPW Manual De Instrucciones página 10

INSTALLATION MANUAL
NANOPW - NANOPB
Wiegand 125 Khz proximity reader
26-BIT WIEgaND oUTPUT
1 - First parity: 1-bit – even parity for the first 12-bit
Code of the badge: 6 half byte represent the last 6 digit of the code (4bit = 1 digit of a code)
Each byte is transferred from bit 7 to bit 0.
2 - Second parity: 1 bit – odd parity for the last 12-bit.
Bit 1
Even Parity on bit 2 to bit 13
Exemple: code of the badge is 0102166A37.
1 0001
Parity 1 1
The code transmitted is in hexadecimal format 166A37
Parity 1: 0 if the number of 1 in bit 2 to bit 13 is even,
1 if the number of 1 in bit 2 to bit 13 is odd.
Parity 2: 0 if the number of 1 in bit 14 to bit 25 is odd,
1 if the number of 1 in bit 14 to bit 25 is even.
30-BIT WIEgaND oUTPUT
1 - First parity: 1 bit – even parity for the first 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.
10
cdvigroup.com
Bit 2 to bit 25
Data (24 bit)
0110 0110
6 6
Bit 2 to bit 29
Data (28-bit)
0001 0110
1 6
1010 0011
A 3
0110 1010
6 A
Bit 26
Odd Parity on bit 14 to bit 25
0111
7
Bit 30
Odd Parity from bit 16 to bit 29
0011 0111
3 7
EN
0
Parity 2
1
Parity 2