Allied Telesis AT-2746FX - Manual (Page 186)

Chapter 10: AT-Diag Utility
186
Select Adapter Option
You can use this menu option to select the adapter to test or configure in
systems that contain more than one network adapter card. When you
select the option, the utility displays a window listing the adapters in the
system. To selection an adapter, type its number from the list or select it
with the up or down arrow keys and press Return.