Polarity; Ignore Unknown Characters - Motorola Symbol DS6708 Product Reference Manual

9 - 6 Symbol DS6708 Digital Scanner Product Reference Guide

Polarity

Polarity determines how the digital scanner's Wand Emulation interface creates the Digitized Barcode Pattern
(DBP). DBP is a digital signal that represents the scanned bar code. Different decoders expect the DBP to be in a
certain format. The DBP either has the "highs" represent bars and the "lows" represent spaces (margins), or the
"highs" represent spaces (margins) and the "lows" represent bars.
Scan the appropriate bar code to select the polarity required by the decoder.
*
Bar High/Margin Low

Ignore Unknown Characters

Unknown characters are characters the host does not recognize. When Send Bar Codes With Unknown
Characters is selected, all bar code data is sent except for unknown characters, and no error beeps sound on the
digital scanner. When Do Not Send Bar Codes With Unknown Characters is selected, bar codes containing at
least one unknown character are not sent to the host, and the digital scanner emits an error beep.
*
Send Bar Codes With Unknown Characters
(Transmit)
Bar Low/Margin High
Do Not Send Bar Codes With Unknown Characters
(Do Not Transmit)