10 - 6 Symbol DS3478 Product Reference Guide
Polarity
Polarity determines how the digital scanner’s wand emulation interface create s the Digitized Bar code Pattern
(DBP). DBP is a digit al signal that r epresents the scanned bar code . Different decoder s expect the DBP in a certain
format. The DBP either uses “highs” to represent bars and “lows” to represent spaces (margins), or “highs” to
represent spaces (margins) and “lows” to represent b ars.
Scan the appropriate bar code to select the polarity required by the decoder.
Ignore Unknown Characters
Unknown characters are characters the host does not recognize. Select Send Bar Codes With Unknown
Characters to send all bar code data except for unknown characters. The digital scanner issues no error beeps.
Select Do Not Send Bar Codes W ith Unk nown Characters to prevent send ing bar codes cont aining at least on e
unknown character to the host. The digital scanner issues an error beep.
*Bar High/Margin Low
Bar Low/Margin High
*Send Bar Codes With Unknown Characters
(Enable)
Do Not Send Bar Codes With Unknown Characters
(Disable)