PRT12MF-DES PRT82MF PRT84MF Operating Manual.doc
2018-08-23
15/23
X=5
Each key pressed is
transmitted separately
as a 8-bit number
without parity bits
Each key pressed is immediately transmitted to the host
controller as a sequence of 8 bits (XXXXXXXX) where
XXXXXXXX represents the code of the pressed key
supplemented by two control bits (E and P). The E represents
the even bit calculated from the first half of a transmitted
code where P represents the parity of a second half of the bit
stream. Key coding as in Table A.
X=6
1-6 keys long PIN
transmitted as Wiegand
26 bit stream with
control bits
1-6 keys long PIN, each key represented by 4-bit long codes
(key codes according to table B). Reader sends data after six
keys are pressed or earlier when # key is pressed. Key’s
buffer is cleared if no keys have not been entered within
programmed timeout. Examples:
Keys entered “1234#” – code transmitted “001234”
Keys entered “123456” – code transmitted “123456”
Table A. 8-bit key coding
Key
HEX
BIN
0
F0
11110000
1
E1
11100001
2
D2
11010010
3
C3
11000011
4
B4
10110100
5
A5
10100101
6
96
10010110
7
87
10000111
8
78
01111000
9
69
01101001
*
5A
01011010
#
4B
01001011
F1
3C
00111100
F2
2D
00101101
Table B. 4-bit key coding
Key
ASCII
BIN
0
0
0000
1
1
0001
2
2
0010
3
3
0011
4
4
0100
5
5
0101
6
6
0110
