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MS851 User’s Manual
3.1.15 UPC-E Preamble
Preamble characters (Country Code and System Character) can be
transmitted as part of a UPC-E symbol.
Select one of the following options for transmitting UPC-E preamble to the host
device: transmit system character only, transmit system character and country
code (“0” for USA), or transmit no preamble.