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INSTALLATION MANUAL
STAR1M - Standalone Access control system / 13,56 MHz Mifare
30-bit Wiegand Output
Hexadecimal 30 bit format. Communication uses a Wiegand 30 bit type signal
(signals: DATA1, DATA0). The frame is composed of a total of 30 bits split
up as follows:
1. First parity: 1 bit - parity for the first 14 bits.
Badge code: 7 half byte representing the card code
Each word is sent with the most significant bit first.
2. Second parity: 1 bit - odd parity for the last 12 bits
Bit 1
Even parity on bit 2 to bit 15
For example: for a card with hexadecimal code 00166A37
0
0000
Parity 1
0
The transmitted hexadecimal code is 0166A37
Parity 1:
0 if the number of '1's in bits 2 to 15 is even,
1 if the number of '1's from bit 2 to 15 is odd.
Parity 2:
0 if the number of '1's in bits 16 to 29 is odd,
1 if the number of '1's from bit 16 to 29 is even.
44-bit Wiegand format Output
Hexadecimal 44 bit format. Communication uses a Wiegand 44 bit type signal (si-
gnals: DATA1, DATA0). The frame is composed of a total of 44 bits split up as follows:
Data:
10 hexadecimal digits (most significant byte first).
Each hexadecimal digit = 4 bits (most significant bit first)
LRC:
4 bits = OR restricted in between the digit of the date, MSBit first
Bit 1 à bit 40
Badge code
For example: for a card with hexadecimal code 001950C3
0000
0000
0000
0
0
0
The transmitted hexadecimal code is 00001950C3
16
cdvigroup.com
Bit 2 à bit 29
Data (28 bits)
0001
0110
1
6
Bit 41 à bit 44
LRC
0000
0001
1001
0
1
9
Odd parity on bit 16 to bit 29
0110
1010
0011
6
A
0101
0000
1100
5
0
EN
reader
®
Bit 30
0111
1
3
7
Parity 2
LRC
0011
0010
C
3
2
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