Keypad Programming Instructions
18 AY-T6350 Installation and Programming Manual
5.4.1 Single Key, Wiegand 6-Bit (Rosslare Format)
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 = 1 1010 0 6 = 1 0110 0
1 = 0 0001 0 7 = 1 0111 1
2 = 0 0010 0 8 = 1 1000 1
3 = 0 0011 1 9 = 1 1001 0
4 = 1 0100 1 * = 1 1011 1 = "B" in Hexadecimal
5 = 1 0101 0 # = 0 1100 1 = "C" in Hexadecimal
5.4.2 Single Key, Wiegand 6-Bit, Nibble & 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 6 = 1 0110 0
1 = 0 0001 0 7 = 1 0111 1
2 = 0 0010 0 8 = 1 1000 1
3 = 0 0011 1 9 = 1 1001 0
4 = 1 0100 1 * = 1 1010 0 = "A" in Hexadecimal
5 = 1 0101 0 # = 1 1011 1 = "B" in Hexadecimal
5.4.3 Single Key, Wiegand 8-Bit, Nibbles
Complemented
This options inverts the most significant bits in the message leaving
the least 4 significant bits as BCD representation of the key. The host
system receives an 8-bit message.
0 = 11110000 6 = 10010110
1 = 11100001 7 = 10000111
2 = 11010010 8 = 01111000
3 = 11000011 9 = 01101001
4 = 10110100 *= 01011010 = "A" in Hexadecimal
5 = 10100101 # = 01001011 = "B" in Hexadecimal