Functionality
AY-x55 Family Installation and Programming Manual 17
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
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 4.2.5).
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.
If the entry of the 4-digit keypad PIN code is disrupted and no number
key is pressed within 5 seconds, the keypad clears the PIN code entry
buffer, generate a beep and is ready to receive a new 4-digit keypad
PIN code.
(EP) FFFF FFFF AAAA AAAA AAAA AAAA (OP)
Where:
EP = Even parity for first 12 bits
OP = Odd parity for last 12 bits
F = 8-bit Facility code
A = 16-bit code generated from keyboard
Option 5: 1 to 5 Keys + Facility Code, Wiegand 26-Bit
Option 5 buffers up to 5 keys and outputs keypad data with a Facility
code like a 26-Bit card output.
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