Instructions

13 - 74 DS36X8 Digital Scanner Product Reference Guide
GS1 DataBar Limited Margin Check
Parameter # 728 (SSI # F1h D8h)
The digital scanner offers four levels of decode security for GS1 DataBar Limited barcodes. There is an inverse
relationship between the level of margin check and digital scanner aggressiveness. Increasing the level of margin
check can reduce scanning aggressiveness, so select only that level of margin check necessary.
• Margin Check Level 1 – No clear margin required. This complies with the original GS1 standard, yet can
result in erroneous decoding of a DataBar Limited barcode when scanning some UPC symbols that start with
digits 9 and 7.
• Margin Check Level 2 – Automatic risk detection. This level of margin check can result in erroneous
decoding of DataBar Limited barcodes when scanning some UPC symbols. If a misdecode is detected, the
scanner operates in Level 3 or Level 1.
• Margin Check Level 3 – Margin check level reflects the newly proposed GS1 standard that requires a five
times trailing clear margin.
• Margin Check Level 4 – Margin check level extends beyond the standard required by GS1. This level of
margin check requires a five times leading and trailing clear margin.
GS1 DataBar Limited Margin Check Level 1
(1)
GS1 DataBar Limited Security Level 2
(2)
* GS1 DataBar Limited Security Level 3
(3)
GS1 DataBar Limited Security Level 4
(4)