Rosslare AY-Q6250 - Code and Setting Management

Keypad Programming Instructions (AY-Q6350)
AY-Q6x50 Family Installation and Programming Manual 27
Where: EP = Even parity for first 16 data bits
OP = Odd parity for last 16 data bits
A = 4
th
(MSB) byte of card serial number
B = 3
rd
byte of card serial number
C = 2
nd
byte of card serial number
D = 1
st
(LSB) byte of card serial number
5.9.8 Wiegand 40-Bit and Checksum
In this mode, 4 bytes of card serial number are transmitted in
Wiegand 40-Bit format. Bytes are sent in reversed order. LSB part of
card serial number is sent first. Last byte sent is Checksum byte
generated by adding 4 data bytes and discarding remainder beyond 8
bytes.
AAAA AAAA BBBB BBBB CCCC CCCC DDDD DDDD (CSUM)
Where: A = 4
th
(MSB) byte of card serial number
B = 3
rd
byte of card serial number
C = 2
nd
byte of card serial number
D = 1
st
(LSB) byte of card serial number
CSUM = Checksum value, 1 byte (A+B+C+D)
5.10 Changing the Programming Code
To change the Programming code:
1. Enter Programming mode.
2. Press 3 to enter Menu 3.
The Transmit LED turns red.
3. Enter the new code
you wish to set as the
Programming code.
Transmit
Program
Green
Transmit
Program
Red
Green