Name: Unitech MS851
Brand: Unitech
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MS851 User’s Manual

GS1-128 (formerly UCC/EAN-128)

GS1-128 is a convention for printing data fields with standard Code 128 bar

code symbols. GS1-128 symbols are distinguished by a leading FNC 1

character as the first or second character in the symbol. Other FNC 1

characters are used to delineate fields.

When GS1-128 symbols are read, they are transmitted after special formatting

strips off the leading FNC 1 character, and replaces other FNC 1 characters

with the ASCII 29 (GS) control character.

When AIM symbology identifiers are transmitted, the modifier character

indicates the position of the leading FNC 1 character according to AIM

guidelines. For example, ]c1 indicates a GS1-128 symbol with a leading

FNC1 character.

Standard Code 128 bar codes which do not have a leading FNC 1 may still be

used, but are not encoded according to the GS1-128 convention. Standard

Code 128 and GS1-128 may be mixed in an application. The MS916 auto

discriminates between these symbols, and can enable or disable one or both

code types. Table 3-1 indicates the behavior of the MS916 in each of the four

possible parameter settings.

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