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
value Character
Track 1
value Character
Track 2 &
Track 3
vaue Character
DecHex DecHex DecHex
0 32 0x20 ' ' 32 64 0x40 ' @ ' 0 48 0x30 ' 0 '
1 33 0x21 ' ! ' 33 65 0x41 ' A ' 1 49 0x31 ' 1 '
2 34 0x22 ' " ' 34 66 0x42 ' B ' 2 50 0x32 ' 2 '
3 35 0x23 ' # ' 35 67 0x43 ' C ' 3 51 0x33 ' 3 '
4 36 0x24 ' $ ' 36 68 0x44 ' D ' 4 52 0x34 ' 4 '
5 37 0x25 ' % ' 37 69 0x45 ' E ' 5 53 0x35 ' 5 '
6 38 0x26 ' & ' 38 70 0x46 ' F ' 6 54 0x36 ' 6 '
7 39 0x27 ' ' ' 39 71 0x47 ' G ' 7 55 0x37 ' 7 '
8 40 0x28 ' ( ' 40 72 0x48 ' H ' 8 56 0x38 ' 8 '
9 41 0x29 ' ) ' 41 73 0x49 ' I ' 9 57 0x39 ' 9 '
10 42 0x2A ' * ' 42 74 0x4A ' J ' 10 58 0x3A ' : '
11 43 0x2B ' + ' 43 75 0x4B ' K ' 11 59 0x3B ' ; '
12 44 0x2C ' , ' 44 76 0x4C ' L ' 12 60 0x3C ' < '
13 45 0x2D ' - ' 45 77 0x4D ' M ' 13 61 0x3D ' = '
14 46 0x2E ' . ' 46 78 0x4E ' N ' 14 62 0x3E ' > '
15 47 0x2F ' / ' 47 79 0x4F ' O ' 15 63 0x3F ' ? '
16 48 0x30 ' 0 ' 48 80 0x50 ' P '
17 49 0x31 ' 1 ' 49 81 0x51 ' Q '
18 50 0x32 ' 2 ' 50 82 0x52 ' R ' Color Key
19 51 0x33 ' 3 ' 51 83 0x53 ' S '
Control value
20 52 0x34 ' 4 ' 52 84 0x54 ' T '
Standard Sentinal values
21 53 0x35 ' 5 ' 53 85 0x55 ' U '
22 54 0x36 ' 6 ' 54 86 0x56 ' V '
23 55 0x37 ' 7 ' 55 87 0x57 ' W '
24 56 0x38 ' 8 ' 56 88 0x58 ' X '
25 57 0x39 ' 9 ' 57 89 0x59 ' Y '
26 58 0x3A ' : ' 58 90 0x5A ' Z '
27 59 0x3B ' ; ' 59 91 0x5B ' [ '
28 60 0x3C ' < ' 60 92 0x5C ' \ '
29 61 0x3D ' = ' 61 93 0x5D ' ] '
30 62 0x3E ' > ' 62 94 0x5E ' ^ '
31 63 0x3F ' ? ' 63 95 0x5F ' _ '
MSR track code to ASCII code conversion chart
ASCII
value
ASCII
value
ASCII
value
SurePOS 500 Model XX3 Technical Reference, v 1.3 Page 68 of
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