Code 11 is a linear, numeric only and discrete barcode symbology that may encode digits (0-9), dash symbol (-) and start/stop characters. Code 11 was designed as a high-density symbology comprising of only numbers and developed in 1997.
Code 11 also known as USD-8 does not give self checking and uses the concept of check digit.
Character set of Code 11 symbology
The character set of Code 11 barcode symbology consists of the following characters:
1. Ten numbers (0-9)
2. A dash symbol (-)
3. Checksum digit (C, rarely K)
If the length of the encoded message is less than 10 characters, check digit C is used while both C and K are used in case of using more than 10 character message to be encoded. The start/stop characters include numbers (0-9).
Structure of Code 11 symbology
In the structure of Code 11 symbology, each code 11 characters is made known using five elements – three different bar widths and two dissimilar space widths - which is a combination of either two wide, three narrow or one wide, four narrow.
Applications of Code 11 barcode symbology
Code 11 is used for labeling telecommunications equipments.
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