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Symbol DS3408 Product Reference Guide
USB Ignore Unknown Characters
This option applies only to the HID Keyboard Emulation device and IBM device. 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 With Unknown Characters to prevent sending bar codes containing at least one
unknown character to the host. The digital scanner issues an error beep.
*Send Bar Codes with Unknown Characters
(Transmit)
Emulate Keypad
Enable this to send all characters as ASCII sequences over the numeric keypad. For example ASCII A transmits as
"ALT make" 0 6 5 "ALT Break".
*Disable Keypad Emulation
Do Not Send Bar Codes with Unknown Characters
(Disable)
Enable Keypad Emulation