Appendix G – Barcode Details
Class Series Programmer’s Manual 211
W1k: GS1 DataBar (formerly RSS)
Valid Characters: Type dependant
Bar Code Data String Length: Type dependant
GS1 DataBar is a continuous, linear bar code symbology used for identification in EAN.UCC
systems. There are six different types:
GS1 DataBar T
e Overview*
GS1 DataBar
GS1 DataBar Truncated
GS1 DataBar Stacked
GS1 DataBar Stacked Omni-directional
Encodes a full 14-digit EAN.UCC item identification
within a linear symbol that can be scanned omni-
directionally.
The encodable character set is 0 through 9.
The maximum numeric data capacity is the
application identifier plus 14-digit numeric item
identification.
Error detection is mod 79 checksum.
GS1 DataBar Limited
Encodes a 14-digit EAN.UCC item identification with
indicator digits of zero or one within a linear symbol.
The encodable character set is 0 through 9.
The maximum numeric data capacity for is the
application identifier plus 14-digit numeric item
identification.
Data must begin with indicator 0 or 1. Any higher
number results in discarded data.
Error detection is mod 89 checksum.
GS1 DataBar Expanded
Encodes EAN.UCC item identification plus
supplementary AI element strings.
The encodable character is a subset of ISO 646,
consisting of upper and lower case letters, digits and
20 selected punctuation characters, plus the special
function character FNC1, (#).
The maximum numeric data capacity is 74 numeric or
41 alphanumeric.
Error detection is mod 211 checksum.
*Additional data can be encoded in a two-dimensional composite as per specification.
Syntax for GS1 DataBar, GS1 DataBar Truncated, GS1 DataBar Stacked, GS1 DataBar Stacked
Omni-Directional and GS1 DataBar Limited (spaces shown for readability):
a W1 k c d eee ffff gggg h i j m n…n | p…p
Where:
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