Colormetrics Vion, User Manual

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www.colormetric.net Color metrics Vion
Pre/Postamble
Preamble
Characters can be added to the beginning of the reader‘s output string of data. These can be special
characters for identifying a specific reading station, to format a message header expected by the
receiving host, or any other character string. Up to nine ASCII characters can be defined for the
Premable.
Postamble
The Postamble serves the same purpose as the Preamble, except the extra characters are added to
the end of a data string. The Postamble can be added only after a terminator character, if specified.
Track Prefix and Suffix
For some Host applications, it may be convenient to start or end a string of reader data with a Sentinel
or terminator character. The maximum Prefix/Suffix string is six characters and its default is NULL (no
prefix or suffix).
Track Start Sentinels
Characters can be added to the beginning of each track data string to simulate the start of the track
data. These can be special characters for identifying a specific track.
End Sentinel
The magnetic stripe End Sentinel character can be added to the end of a magnetic stripe data string.
This character simulates the end of character for track1, track2 or track3. This default is '?‘