Introduction to Code 2-of-5 Industry bar Code

Code 2-of-5 Industry bar Code is a self-calibration, continuous digital bar Code. Industrial 25 code is the longest bar code in the 25 family code. Bar code printing software also supports matrix 25 code and cross 25 code. In industrial 25 code, all information is made up of strips, which are three times as wide as narrow strips. Industrial 25 code appeared in the late 1960s, mainly used in warehousing management system, film envelope identification, air ticketing, transport links of continuous numbering and other fields.

1、Code 2-of-5 Industry character set supported by bar Code

Can only represent 0 to 9 numeric characters, each character is encoded by 5-bit binary code, including only two binary "1". This is the origin of the name of 25 code.

2、 coding rules

Code 2-of-5 Industry barcode is encoded by width adjustment coding method. Each bar Code symbol is composed of five stripes in regular arrangement. Only wide stripes and narrow stripes are used as coding units.

Narrow bar - binary "0"

Wide bar - binary "1"

Empty - Used for separation only

3、bar code attributes

Code 2-of-5 Industry bar Code is a non-continuous, variable length bar Code that supports bidirectional scanning. Code 25 is a self-checking code with only two wide bars per character.

4、Code 2-of-5 Industry barcode structure

Start character + barcode data character + termination character