Industrial 2 of 5 barcode is also known as standard 2 of 5 barcode. Industrial 2 of 5 is linear barcode symbology that has been developed in 1970s. This symbology is called "2 of 5" due to the fact that digits are encoded with 5 bars, 2 of which are always wide and the remaining three are narrow. Standard 2 of 5 is a numeric symbology and its character set includes 10 digital characters (0, 1, 2, 3, 4, 5, 6, 7, 8, 9). Industrial 2 of 5 barcode is most widely used in airline, photofinishing, ticketing and warehousing industries.
Industrial 2 of 5 is very simple symbology in which all the information is encoded within the width of the bars. The spaces in the barcode exist only to separate the bars themselves. . Industrial 2 of 5 only uses bar width to encode the data. Interleaved 2-of-5 is often selected instead of other linear barcode because bar code messages that only contain numbers can be encoded in Interleaved 2-of-5 using half the space as space required by other linear barcode.
Industrial 2 of 5 barcode must include start character and stop character. Optionally it ends with modulo 10 check digit. Interleaved 2-of-5 bar code includes bearer bars either as a rectangular frame around the bar code or as two perpendicular bars across the top and bottom of the data expressing bars.The term "bearer bars" originates with the manufacture of metal grates. The bearer bars in a grate bear weight and run perpendicular to the Trans bars (which connect the bearer bars).
Structure of Industrial 2 of 5:
A typical Standard 2 of 5 barcode has the following structure: