Datalogic Gryphon I GFS4400 Product Reference Manual page 19

Interface Selection Setup
KEYBOARD FEATURES
$P,HA35,P(CR)
USB Keyboard with standard key encoding
Select USB Keyboard
Set KEYBOARD
$P,HA2C,P(CR)
Interface
USB Keyboard for Apple computers Features
starting on page 37
Select USB-KBD-APPLE
$P,HA2B,P(CR)
USB Keyboard with alternate key encoding
Select USB Alternate Keyboard
Product Reference Guide 17