Reader Functionality
AYC-x6355 (Rev. B) Installation and User Manual
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6.2.3.1
Keypad Transmission Format Option Number
Table 4 presents the eight different keypad transmission formats.
Table 4: Keypad Transmission Format Option Number
Keypad Transmission Format
Option Number
Single Key, Wiegand 6-Bit (Rosslare Format)
1*
Single Key, Wiegand 6-Bit with Parity Bits
2
Single Key, Wiegand 8-Bit, Nibbles Complemented
3
4 Keys Facility Code, Wiegand 26-Bit
4
1 to 5 Keys + Facility Code, Wiegand 26-Bit
5
6 Keys BCD and Parity Bits, Wiegand 26-Bit
6
1 to 8 Keys BCD, Clock & Data Single Key
8
Single Key, Wiegand 4-Bit
9
* 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, 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 ="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
