Leave a comment
2011/5/6
Numbers Only! The Interleaved 2 of 5 Interleaved Barcode

 

In the world of barcoding, the I 2 of 5 barcode stands for 'interleaved 2 of 5," with the word “interleaved” originating from the fact that both the white space and dark bars have significance in these codes. One number is encoded with a series of five bars, and the next with the empty spaces between those bars. Certain characters are interleaved in five bar/space increments as well.

The I 2 of 5 barcode is composed of strictly numbers, and the symbol can be extended to whatever length is necessary to store all of the numerical data. This code can be created at high density, holding up to an incredible 18 digits per inch.

As an option, check digits may be included in these codes, which is definitely recommended if pushing the limits of density capabilities or if using unusually long lengths.

This symbology also contains a quiet zone on both ends of the code and a standard start and stop character. The start character consists of a narrow bar and a narrow space repeated twice. Its stop character is a wide bar, narrow space and a narrow bar.

Numbers are represented by the following patterns:

Number

Pattern

0

NNWWN

1

WNNNW

2

NWNNW

3

WWNNN

4

NNWNW

5

WNWNN

6

NWWNN

7

NNNWW

8

WNNWN

9

NWNWN

The X-dimension is defined as the width of the narrowest bar/space in the symbol. While advanced scanners can read miniscule X-dimensions, the standard for X-dimensions is 7.5 mils, or .19 mm or .0075 inches wide. It is best to adhere to the standard when you generate barcodes so scanners from outside the company can read them.

The wide bars/spaces must be of uniform width, and must be between two and three times the width of the X-dimension. If the X-dimension is smaller than 20 mils, the wide elements must be at least 2.2 times the X-dimension.

Quiet zones must be at least 10 times the X-dimension or a minimum of .25 inches when printing barcodes. Again, while the width of the symbol is variable, the height has to be .25 inches or .15 times the length, whichever is greater.

This technology can be overwhelming at first, so feel free to contact your Godex representative for any questions you may have about making barcodes of this or any variety.Bottom of Form

 

Tags : Barcodes , Bar codes
Share with :
 
Leave a reply
Name
Email
Comment
*Verifying Code code
  Submit
Subscribe to GoDEX Blog