GS1-DataBar Introduction

This page concerns basic information of GS1-DataBar, as well as its generating and printing components.

GS1-DataBar Overview

GS1 DataBar barcode, formerly known as Reduced Space Symbology (RSS), is a continuous, character self-checking and bidirectionally decodable barcode symbology commonly used in POS, consumer goods manufacturers and healthcare, or situations where additional information such as product weight, expiration dates, country or origin or serial numbers need to be encoded. It is a family of linear symbologies with various versions optimized for different application requirements.


 

Generating and Printing GS1-DataBar Barcodes

OnBarcode provides comprehensive GS1-DataBar generators and scanner components for Java, .NET, Android, iOS developments and several reporting applications.

GS1 Databar Structure

The GS1 DataBar family consists of the following versions:

1.The first group of GS1 DataBar configurations all contain four symbol characters in every symbol with identical encodation rules and structure.

  • GS1 Databar-14
  • GS1 Databar-14 Truncated
  • GS1 Databar-14 Stacked
  • GS1 Databar-14 Stacked Omnidirectional


2. The second group, GS1 Databar Limited, is structurally different, containing two symbol characters and uses different encodation rules.

  • GS1 Databar Limited


3. The third group, GS1 DataBar Expanded, has yet another distinct symbology structure and set of encodation rules

  • GS1 Databar Expanded
  • GS1 Databar Expanded Stacked


GS1 DataBar Barcode Size Setting

As for GS1 DataBar size setting, two factors should be considered: X dimension and barcode width.

Please get details from GS1 DataBar size setting instruction.


GS1 DataBar-14

The GS1 DataBar-14 Bar Code Symbol is designed to be read by an omnidirectional scanner, such as a retail slot scanner. Its dimensions are 96X wide, starting with a 1X space and ending with a 1X bar, by 33X high (where X is the width of a module). For example, an GS1 DataBar-14 Symbol with an Xdimension of 0.25 millimetre (0.010 inch) would be 24 millimetre (0.96 inch) wide and 8.25 millimetre (0.33 inch) high.


GS1 DataBar-14 Truncated

The GS1 DataBar-14 Truncated Bar Code Symbol is a reduced height version of the GS1 DataBar-14 Bar Code Symbol that is designed for small items that will not need to be read by omnidirectional scanners. Its dimensions are 96X wide by 13X high (where X is the width of a module). For example, an GS1 DataBar-14 Truncated Symbol with an X-dimension of 0.25 millimetre (0.010 inch) would be 24 millimetres (0.96 inch) wide by 3.25 millimetres (0.13 inch) high.


GS1 DataBar-14 Stacked

The GS1 DataBar-14 Stacked Bar Code Symbol is a reduced height two-row version of the GS1 DataBar-14 Bar Code Symbol that is designed for small items that will not need to be read by omnidirectional scanners. Its dimensions are 50X wide by 13X high (where X is the width of a module). For example, an GS1 DataBar-14 Stacked Symbol with an X-dimension of 0.25 millimetre (0.010 inch) would be 12.5 millimetres (0.50 inch) wide by 3.25 millimetres (0.13 inch) high. Its structure includes a 1X high separator pattern between the two rows.


GS1 DataBar-14 Stacked Omnidirectional

The GS1 DataBar-14 Stacked Omnidirectional Bar Code Symbol is a full height, two-row version of the GS1 DataBar-14 Bar Code Symbol that is designed to be read by an omnidirectional scanner, such as a retail slot scanner. Its dimensions are 50X wide by 69X high (where X is the width of a module). For example, an GS1 DataBar-14 Stacked Omnidirectional Symbol with an X-dimension of 0.25 millimetre (0.010 inch) would be 12.5 millimetres (0.50 inch) wide by 17.25 millimetres (0.69 inch) high. The height of 69X includes a 3X high separator pattern between two rows of 33X each.


GS1 DataBar Limited

The GS1 DataBar Limited Bar Code Symbol (formerly RSS Limited) encodes the Element String AI (01). This Element String is based on the GTIN-12, GTIN-8, GTIN-13, or GTIN-14 Data Structures. However, when using the GTIN-14 Data Structure, only the indicator value 1 is allowed. The GS1 DataBar-14 family must be used for GTIN-14 Data Structures with an Indicator value greater than 1.

The GS1 DataBar Limited Bar Code Symbol is designed for small items that will not need to be read by omnidirectional Point-of-Sale (POS) scanners. Its dimensions are 74X wide, starting with a 1X space and ending with a 1X bar, by 10X high (where X is the width of a module). For example, an GS1 DataBar Limited Bar Code Symbol with an X-dimension of 0.25 millimetre (0.010 inch) would be 18.5 millimetres (0.74 inches) wide by 2.5 millimetres (0.10 inch) high.

GS1 DataBar Expanded

The GS1 DataBar Expanded Bar Code Symbol (formerly RSS Expanded) has a variable width (from 4 to 22 symbol characters, or a minimum of 102X wide and a maximum of 534X wide) and is 34X high (where X is the width of a module). The symbol starts with a 1X space and ends with either a 1X bar or space. For example, the GS1 DataBar Expanded Symbol shown in Figure 5.6.1.4.1 - 1 with an Xdimension of 0.25 millimetre (0.010 inch) would be 37.75 millimetres (1.51 inches) wide by 8.5 millimetres (0.34 inch) high.


GS1 DataBar Expanded Stacked

The GS1 DataBar Expanded Stacked Bar Code Symbol (formerly RSS Expanded Stacked) is a multirow stacked version of GS1 DataBar Expanded. It can be printed in widths of 2 to 20 segments and can have from 2 to 11 rows. Its structure includes a 3X high separator pattern between rows. It is designed to be read by an omnidirectional scanner such as a retail slot scanner. The GS1 DataBar Expanded Stacked Symbol shown in Figure 5.6.1.4.2 - 1 with an X-dimension of 0.25 millimetre (0.010 inch) would be 25.5 millimetres (1.02 inches) wide by 17.75 millimetres (0.71 inch) high.


GS1 DataBar Data Encoding

Encodable character set for GS1 DataBaR includes:
  • GS1 DataBar-14 versions and GS1 DataBar Limited: Digits 0-9 (with the restriction of GS1 DataBar Limited to 0 or 1 in the first digit)
  • GS1 DataBar Expanded: the uppercase and lowercase letters, digits, spaces, and 20 selected punctuation characters in addition to the Function 1 Character (FNC 1)
Maximum numeric data capacity:
  • GS1 DataBar-14 versions and GS1 DataBar Limited: AI (01) plus a 14-digit numeric item identification
  • GS1 DataBar Expanded: 74 numeric or 41 alphabetic characters

GS1 DataBar Human Readable Information


The Human Readable Interpretation of data in a bar code should be shown below the bar code symbol.

The precise location of the human readable characters and the font used to represent them are not specified for the GS1 DataBar (formerly RSS) Symbol. However, characters should be clearly legible (such as OCR-B) and must be obviously associated with the symbol.

Application Identifiers (AIs) should be clearly recognizable to facilitate key entry. This is achieved by putting the AI between parentheses in the Human Readable Interpretation.
The checksum digit immediately follows the final data character and precedes the stop character. Enabling the AddChecksum option in Code 39 generators allows the component to automatically compute and append Module 43 checksum digit to Code 39.




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