Rosslare AYC-Q4 Series Manual page 17

Single Key, 3x4 Matrix Keypad
1 to 8 Keys BCD, Clock & Data Single Key
Single key, 4-bit Weigand
* Option 1 is the default factory setting.
More information on each of the different keypad transmission
formats is available below and on the following pages.
Option 1: Single Key, 6-Bit Wiegand (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 ="A" in Hexadecimal
1= 0 0001 0
2= 0 0010 0
3= 0 0011 1
4= 1 0100 1
5= 1 0101 0
Option 2: Single Key, 6-Bit Wiegand 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
AYC-Qx4
family
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
manual
6= 1 0110 0
7= 1 0111 1
8= 1 1000 1
9= 1 1001 0
*= 1 1011 1 ="B" in Hexadecimal
#= 0 1100 1 ="C" in Hexadecimal
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8
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