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Chapter 5: Configuration
Decoded (Internal) Scanners
162 Psion Teklogix 7530 G2 Hand-Held Computer User Manual
Double-tapping on this parameter displays a dialog box labelled Set Code Lengths
where you can define the code length that will be decoded by your scanner.
Choosing One discrete length allows you to decode only those codes containing a
selected length. Choosing Two discrete lengths allows you to decode only those
codes containing two selected lengths. Length within a range allows you to decode
a code type within a specified range from 1 to 55.
Check Digit Verification
When this parameter is enabled, the integrity of a “Code 39” symbol is checked to
ensure that it complies with specified algorithms.
Note: Only those “Code 39” symbols that include a Mod 43 check digit are
decoded when this parameter is enabled.
Transmit Check Digit
If the check digit is to be transmitted with the data, this parameter must to enabled.
Full ASCII
If this parameter is enabled, the characters +, %, and / are used as escape characters.
The combination of an escape character and the next character is converted to an
equivalent ASCII character.
Decode Performance (
SE2223 only)
If this parameter is enabled, one of three decode levels can be chosen in the “Decode
Performance Level” parameter.
Decode Perf. Level (
SE2223 only)
This parameter provides three levels of decode performance or “aggressiveness” for
Code 39 symbols. Increasing the performance level reduces the amount of required
bar code orientation—this is useful when scanning very long and/or truncated bar
codes. Keep in mind that increased levels reduce decode security.