Symbol Technologies LS 2106 manual UPC-A Preamble

LS 2106 Product Reference Guide

UPC-A Preamble

Three options are given for lead-in characters for UPC-A symbols transmitted to the host device: transmit system character only, transmit system character and country code (“0” for USA), and no preamble transmitted. The lead-in characters are considered part of the symbol.

NO PREAMBLE

(<DATA>)

SYSTEM CHARACTER

(<SYSTEM CHARACTER> <DATA>)

SYSTEM CHARACTER & COUNTRY CODE

(< COUNTRY CODE> <SYSTEM CHARACTER> <DATA>)

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