30
7) WIEGAND 37 bit with site code and channel information
Attention!
The code is limited to
524’287.
8) WIEGAND 37 bit D10302
9) WIEGAND 37 bit D10302 (BCD)
Attention!
The code is limited to
99'999'999.
10) WIEGAND 50 bit
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37
"even parity bit" for the bits 2-19
"odd parity bit" for the bits 19-36
= "0000000000001"
binary code output, 18 (msb), 36 (lsb)
1
S1
2 3
ON
4
Channel
information
bit 16 bit 17 CH
0
0
A
0
1
B
1
0
C
1
1
D
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37
"even parity bit" for the bits 2-19
"odd parity bit" for the bits 19-36
= "1010000"
binary code output, 9 (msb), 36 (lsb)
1
S1
2 3
ON
4
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37
"even parity bit" for the bits 2-19
"odd parity bit" for the bits 19-36
= "101"
1
S1
2 3
ON
4
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
"even parity bit " for the bits 2-25
"odd parity bit" for the bits 26-49
"0"
binary output code, 22 (msb), 49 (lsb)
1
S1
2 3
ON
4
"1"
"0"
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
"even parity bit" for the bits 2-25
"odd parity bit" for the bits 26-49
"0"
Channel information
bit 48 bit 49 CH
0
0
A
0
1
B
1
0
C
1
1
D
binary output code, 20 (msb), 47 (lsb)
1
S1
2 3
ON
4
"1"
"0"
11) WIEGAND 50 bit with channel information
Frame make up for the WIEGAND signals
The frame in the
WIEGAND
format is emitted
by means of the
D0
and
D1
signals. The
duration of each single bit is 50μs while
the waiting period between one bit and the
next is 2 ms.
6. ISO2 protocol (bit flow sequence)
The frame leaving the interface is formed of 16
characters. Each character is made up of 5 bits
according to the table on the left, where the most
significant bit is
B4
, and the least significant is
B1
.
The parity bit is odd parity for
B4
,
B3
,
B2
,
B1
.
The frame is as follows: START + CHANNEL
(1 character) + SEP + CODE (10 characters) +
SEP + END + LRC, i.e. 16 characters altogether.
Frame composition diagrams for ISO2 signals
There are three
ISO2
signals:
CLS
(Card
Loading Signal),
RCP
(Read Clock Pulse)
and
RDP
(Read Data Pulse). The 3 signals
are active low
1
0
1
D1
2ms
50μs
D0
Parity B4 B3 B2 B1 Character
1 0 0 0 0 0
0 0 0 0 1 1
0 0 0 1 0 2
1 0 0 1 1 3
0 0 1 0 0 4
1 0 1 0 1 5
1 0 1 1 0 6
0 0 1 1 1 7
0 1 0 0 0 8
1 1 0 0 1 9
0 1 0 1 1 START
0 1 1 0 1
SEP
0 1 1 1 1
END
CLS
5ms
RCP
RDP
5ms
Summary of Contents for S504 Series
Page 99: ...99 Notes...