Reader Functionality
AYC-Qx4 family manual Page 18
Keypad Transmission Format Option Number
See the table below to determine the Option Number for the
Keypad Transmission Format you wish to select
Keypad Transmission Format Option Number
Single Key, 6-Bit Wiegand (Rosslare Format) 1*
Single Key, 6-Bit Wiegand with Nibble + Parity Bits 2
Single Key, 8-Bit Wiegand, Nibbles Complemented 3
4 Keys Binary + Facility Code, 26-Bit Wiegand 4
1 to 5 Keys + Facility Code, 26-Bit Wiegand 5
6 Keys BCD and Parity Bits, 26-Bit Wiegand 6
Single Key, 3x4 Matrix Keypad 7
1 to 8 Keys BCD, Clock & Data Single Key 8
* 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 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
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