ATEN ALTUSCN KH1516I - Manual (Page 45)

Chapter 4. Local Console Operation
33
F8 LOUT
Pressing [F8] logs you out of OSD control of the computers, and blanks the
Console screen. This is different from simply pressing [Esc] when you are at
the Main Screen to deactivate the OSD. With this function you must log in all
over again to regain access to the OSD, whereas with [Esc], all you have to do
to reenter the OSD is tap the OSD Hotkey.
Note: 1. When you reenter the OSD after logging out, the screen stays blank
except for the OSD Main Screen. You must input your password
before you can continue.
2. If you reenter the OSD after logging out, and immediately use [Esc]
to deactivate the OSD without having selected a port from the OSD
menu, a Null Port message displays on the screen. The OSD Hotkey
will bring up the Main OSD Screen.