Rosslare AYC-H6355 Installation And User Manual page 24

Reader Functionality
Option 2: Single Key, Wiegand 6-Bit Nibble and Parities
Each key press immediately sends 4 bits with 2 parity bits added –
even parity for the first 3 bits and odd parity for the last 3 bits.
0 = 0 0000 1
1 = 0 0001 0
2 = 0 0010 0
3 = 0 0011 1
4 = 1 0100 1
5 = 1 0101 0
Option 3: Single Key, Wiegand 8-Bit Nibbles Complemented
This option inverts the most significant bits in the message leaving the
least 4 significant bits as a Binary Coded Decimal (BCD) representation
of the key. The host system receives an 8-bit message.
0 = 11110000
1 = 11100001
2 = 11010010
3 = 11000011
4 = 10110100
5 = 10100101
Option 4: 4 Keys Binary + Facility Code, Wiegand 26-Bit
This option buffers 4 keys and outputs keypad data with a 3-digit
Facility code like a standard 26-Bit card output.
The Facility code is set in Programming Menu number four and can be
in the range 000 to 255. The factory default setting for the Facility
code is 000 (see Section 7.2.6).
The keypad PIN code is 4-digit long and can range between 0000 and
9999. On the fourth key press of the 4-digit PIN code, the data is sent
across the Wiegand Data lines as binary data in the same format as a
26-Bit Card.
If  or # are pressed are pressed during PIN code entry, the keypad
clears the PIN code entry buffer, generate a beep and is ready to
receive a new 4-digit keypad PIN code.
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6 = 1 0110 0
7 = 1 0111 1
8 = 1 1000 1
9 = 1 1001 0
= 1 1010 0 = "A" in Hexadecimal
# = 1 1011 1 = "B" in Hexadecimal
6 = 10010110
7 = 10000111
8 = 01111000
9 = 01101001
 = 01011010 = "A" in Hexadecimal
# = 01001011 = "B" in Hexadecimal
AYC-x6355 Installation and User Manual