Motorola SYMBOL LS9203 - Manual (Page 208)

Symbol LS9203 Product Reference Guide 9-28
UPC-A Preamble
Preamble characters are part of the UPC symbol consisting of Country Code and System Character. Three options are given for
transmitting UPC-A preamble to the host device: transmit System Character only, transmit System Character and Country Code (“0”
for USA), and no preamble transmitted. Select the appropriate option to match the host system.
No Preamble
()
*
System Character
( )