Datalogic Gryphon 4200 Series Quick Reference Manual page 21

This feature specifies the country/language supported by
the keyboard. Only the following interfaces support ALL
Country Modes.
USB Keyboard (without alternate key encoding)
AT, PS/2 25-286, 30-286, 50, 50Z, 60, 70, 80, 90 & 95
w/Std Key Encoding
Keyboard Wedge for IBM AT PS2 with standard key
encoding but without external keyboard
AT, PS/2 25-286, 30-286, 50, 50Z, 60, 70, 80, 90 & 95
without Alternate Key