Acnodes FPC 5121 - Manual (Page 29)

 Left/Right The Left and Right <Arrow> keys allow you to select a setup screen.
 Up/Down The Up and Down <Arrow> keys allow you to select a setup screen or sub-screen.
+ Plus/Minus
The Plus and Minus <Arrow> keys allow you to change the field value of a particular
setup item.
Tab The <Tab> key allows you to select setup fields.
F1 The <F1> key allows you to display the General Help screen.
F10
The <F10> key allows you to save any changes you have made and exit Setup. Press
the <F10> key to save your changes.
Esc
The <Esc> key allows you to discard any changes you have made and exit the Setup.
Press the
<Esc> key to exit the setup without saving your changes.
Enter
The <Enter> key allows you to display or change the setup option listed for a
particular setup item. The <Enter> key can also allow you to display the setup sub -
screens.