Compaq AlphaServer DS20E Reference Manual page 229

7.23.5 kbd_hardware_type
The kbd_hardware_type environment variable sets the keyboard
hardware type as either PCXAL or LK411 and enables the system to
interpret the terminal keyboard layout correctly.
The syntax is:
set kbd_hardware_type keyboard_type
The options for keyboard_type are:
pcxal (default)
lk411
Example
P00>>> set kbd_hardware_type lk411
P00>>>
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Selects the 102-type keyboard layout.
Selects the LK411 keyboard layout.
Using the SRM Console 7-61