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Sending ISO Magnetic Encoding Information
The CUPS Driver uses URL Encoding when defining data to be encoding to the Magnetic
Stripe. Any special characters (such as start and end sentinels) must be described with URL
encoding to be recognized. See the URL Encoding Reference Reviewing the URL Encoding
Reference for additional information..
• The first character of this data string must be the track's specific Start Sentinel (SS) and
the last character must be the specific End Sentinel (ES).
• The characters or data in between the SS and ES can include all of the valid characters
specific to each track.
• The number of these characters, however, is limited by each track's maximum character
capacity.
When segmenting track data, the appropriate Field Separator (FS) must be used. The table
below shows the SS, ES, FS and the valid characters defined for each track.
Track Start
Sentinel
End
Sentinel
Field
Separator
Valid Characters Maximum
Number of
Characters
Track 1 % ? ^ ASCII 32-95 78
Track 2 ; ? = ASCII 48-63 39
Track 3 ; ? = ASCII 48-63 109
HDP5000 Cups (Linux & MAC OS) User Guide Rev1.1
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