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Configuration Word
The configuration word is used to alter the format of the track data returned from the MSR. In the default
configuration the MSR reads ISO 7811 format cards. There are three possible data tracks. Track one is
formatted as 7 bit 1 parity data and is limited to a maximum of 79 characters. Tracks two is formatted as 5 bit
1 parity format with a maximum of 40 characters. Track three is also 5 bits 1 parity format but is limited to no
more than 107 characters. Before the track data can be sent to the host each character must be converted to
ASCII codes. For track one this is simply a matter of clearing the parity bit and adding 32 to the data value.
For tracks two and three you clear the parity bit and add 48 to the data value. The following table shows the
character set for the different tracks and their corresponding ASCII values:
Track 1
ASCII
value
value
Character
Dec Hex
0
32 0x20
1
33 0x21
2
34 0x22
3
35 0x23
4
36 0x24
5
37 0x25
6
38 0x26
7
39 0x27
8
40 0x28
9
41 0x29
10
42 0x2A
11
43 0x2B
12
44 0x2C
13
45 0x2D
14
46 0x2E
15
47 0x2F
16
48 0x30
17
49 0x31
18
50 0x32
19
51 0x33
20
52 0x34
21
53 0x35
22
54 0x36
23
55 0x37
24
56 0x38
25
57 0x39
26
58 0x3A
27
59 0x3B
28
60 0x3C
29
61 0x3D
30
62 0x3E
31
63 0x3F
SurePOS 500 Model XX3 Technical Reference, v 1.3
MSR track code to ASCII code conversion chart
Track 1
ASCII
value
value
Dec Hex
' '
32
64 0x40
' ! '
33
65 0x41
' " '
34
66 0x42
' # '
35
67 0x43
' $ '
36
68 0x44
' % '
37
69 0x45
' & '
38
70 0x46
' ' '
39
71 0x47
' ( '
40
72 0x48
' ) '
41
73 0x49
' * '
42
74 0x4A
' + '
43
75 0x4B
' , '
44
76 0x4C
' - '
45
77 0x4D
' . '
46
78 0x4E
' / '
47
79 0x4F
' 0 '
48
80 0x50
' 1 '
49
81 0x51
' 2 '
50
82 0x52
' 3 '
51
83 0x53
' 4 '
52
84 0x54
' 5 '
53
85 0x55
' 6 '
54
86 0x56
' 7 '
55
87 0x57
' 8 '
56
88 0x58
' 9 '
57
89 0x59
' : '
58
90 0x5A
' ; '
59
91 0x5B
' < '
60
92 0x5C
' = '
61
93 0x5D
' > '
62
94 0x5E
' ? '
63
95 0x5F
Track 2 &
Track 3
Character
vaue
' @ '
0
' A '
1
' B '
2
' C '
3
' D '
4
' E '
5
' F '
6
' G '
7
' H '
8
' I '
9
' J '
10
' K '
11
' L '
12
' M '
13
' N '
14
' O '
15
' P '
' Q '
' R '
Color Key
' S '
Control values
' T '
Standard Sentinal values
' U '
' V '
' W '
' X '
' Y '
' Z '
' [ '
' \ '
' ] '
' ^ '
' _ '
81
ASCII
value
Character
Dec Hex
48 0x30
' 0 '
49 0x31
' 1 '
50 0x32
' 2 '
51 0x33
' 3 '
52 0x34
' 4 '
53 0x35
' 5 '
54 0x36
' 6 '
55 0x37
' 7 '
56 0x38
' 8 '
57 0x39
' 9 '
58 0x3A
' : '
59 0x3B
' ; '
60 0x3C
' < '
61 0x3D
' = '
62 0x3E
' > '
63 0x3F
' ? '
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