Upc-A Preamble - Symbol LS3578 Product Reference Manual

11 - 14 Symbol LS3578 Product Reference Guide

UPC-A Preamble

Preamble characters are part of the UPC symbol consisting of Country Code and System Character. There are
three options for transmitting UPC-A preamble to the host device:
•
Transmit System Character only.
•
Transmit System Character and Country Code ("0" for USA).
•
No preamble transmitted.
Select the appropriate option to match the host system.
No Preamble
(<DATA>)
*
System Character
(<SYSTEM CHARACTER> <DATA>)
System Character & Country Code
(< COUNTRY CODE> <SYSTEM CHARACTER> <DATA>)