7 - 20 Symbol DS3578 Digital Scanner Product Reference Guide
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
scanner. When Do Not Send Bar Codes With Unknown Characters is selected, bar code data is sent up to the
first unknown character and then an error beep sounds on the scanner.
*Send Bar Code with Unknown Characters
(Enable)
Do Not Send Bar Codes with Unknown Characters
(Disable)
RS-232 ASCII Character Set
The values in Table 7-4 can be assigned as prefixes or suffixes for ASCII character data transmission.
Table 7-4
RS-232 Prefix/Suffix Values
Prefix/Suffix
Value
Full ASCII Code 39
Encode Character
ASCII Character
1000 %U NUL
1001 $A SOH
1002 $B STX
1003 $C ETX
1004 $D EOT
1005 $E ENQ
1006 $F ACK
1007 $G BELL
1008 $H BCKSPC
1009 $I HORIZ TAB
1010 $J LF/NW LN
1011 $K VT
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