Motorola LS4208 用户手册

USB Interface

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This option applies only to the HID Keyboard Emulation device and IBM device. 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. When Do Not Send Bar Codes With 
Unknown Characters is selected, bar code data is sent up to the first unknown character, then the scanner issues 
an error beep.

When enabled, all characters are sent as ASCII sequences over the numeric keypad. For example ASCII A would 
be sent as “ALT make” 0 6 5 “ALT Break.”