Motorola SYMBOL LS9203 - Manual (Page 153)

USB Interface 7-19
USB Keyboard FN1 Substitution
This option applies only to the USB HID Keyboard Emulation device. When enabled, this allows replacement of any FN1 characters
in a Code 128 or an EAN 128 bar code with a Key Category and value chosen by the user
(see FN1 Substitution Values on page 10-9
to set the Key Category and Key Value).
Enable
*Disable