Metrologic Instruments IS1000 用户手册

 

 
 
 
 
 
 

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This code is used by the airline and railway companies and are printed at the bottom of 
each ticket. It is in fact a Standard 2/5 code with 2 bar start/stop characters. 

Once activated (see Symbology Selection, chapter 3.1), only codes with 15, 17, 19 or 21 
characters can be decoded. 

 

This symbology has been developed by IBM and is reserved for IBM and authorized 
companies only. To decode it the decoder must be equipped with specific firmware 
available on request, accompanied with an authorization letter from IBM. 

It uses a check digit being the second character in the code which is verified and 
transmitted or not depending of the option selected. 

 

 

 

 

Mainly used in Italy, this symbology has a set of 28 characters (numeric, letters A to F, a 
few symbols and ASCII control characters). 

A check digit modulo 28 is used as the last character in the code which is always verified 
but not transmitted.