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Code 11

Code 11 barcode is used mainly for labeling telecommunications equipment. It is similar to Code 2 of 5 Matrix.

Code 11 is a high-density code, but requires also a high-density output device (mainly because of the print ratio utilized).

The symbol set includes the digits 0 through 9, a dash ( - ), and a start/stop code. Each symbol is encoded with three bars and two spaces. Of these five elements, there may be two wide and three narrow, or one wide and four narrow. Wide elements represent a binary 1 while narrow elements represent a binary 0.Two check digits, named C and K, are used; often only the first check digit (C) is used when the length of the data is 10 characters or fewer. The check digits are the result of a Modulo 11 division of the sum of the products of each digit times a weight factor. The weights for the C check digit range from 1 to 10 while the weights for the K check digit range from 1 to 9. Weights start at the right end of the data and increment towards the left. The dash character has a value of 10 for purposes of check digit calculation.

Valid characters: "0".."9", "-"

Code 11 Barcode Sample
Barcodes list.