SYMBOLOGIES 8 - 65
GS1 DataBar Expanded
Parameter # 340
GS1 DataBar Limited Security Level
Parameter # 728
The linear imager offers four levels of decode security for GS1 DataBar Limited bar codes. There is an inverse
relationship between security and linear imager aggressiveness. Increasing the level of security may result in
reduced aggressiveness in scanning, so choose only that level of security necessary.
•
GS1 DataBar Limited Security Level 1: No clear margin required. This complies with the original GS1
standard, yet might result in erroneous decoding of the DataBar Limited bar code when scanning some
UPC symbols that start with digits “9” and “7”
•
GS1 DataBar Limited Security Level 2: Automatic risk detection. This level of security may result in
erroneous decoding of DataBar Limited bar codes when scanning some UPC symbols. The scanner
defaults to Level 3, otherwise to Level 1.
•
GS1 DataBar Limited Security Level 3: Security level reflects newly proposed GS1 standard that
requires a 5 times trailing clear margin.
•
GS1 DataBar Limited Security Level 4: Security level extends beyond the standard required by GS1.
This level of security requires a 5 times leading and trailing clear margin.
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