CDVI SOLARPW Manuel D'installation page 13

INSTALLATION MANUAL
SOLARPW-SOLARPB-STARPW-STARPB
Wiegand 125 Khz Proximity Readers
6] OUTPUT FORMATS 26, 30 AND 44 BIT WIEGAND
Chronograms
\DATA1
\CLOCK
\DATA0
Open collector output with internal pulls up 1K at +5V or +12V according the ST4 position.
26-bit Wiegand Output
Format 26-bit hexadecimal. The output format is 26-bit Wiegand (Signals: DATA1, DATA0 and CLOCK)
The frame is made of 26-bit and built as follow:
1 - First parity: 1-bit – even parity for the fi rst 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 0100166A37.
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.
0 logic
50 μs 2ms
Bit 2 to bit 25
Data (24 bit)
0110 0110
6 6
1 logic
50 μs
Odd Parity on bit 14 to bit 25
1010 0011
A 3
EN
2ms
Bit 26
0111 0
7 Parity 2
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