BZ-TECH D-6448 Manual De Instrucciones página 248

Programming Guide S-100W - Ver. 1.0
UPC-A Preamble
Preamble characters are part of the UPC symbol, and include Country Code and System
Character. There are three options for transmitting a UPC-A preamble to the host device:
transmit System Character only, transmit System Character and Country Code ("0" for USA),
and transmit no preamble. 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>)
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