ADTRAN TSU 120e - Manual (Page 43)

Chapter 3. Operation
61202129L1-1 TSU 120 User Manual 3-5
Operation Keys
General Menu Operation
The TSU 120 uses a multilevel menu structure containing both
menu items and data fields. All menu operations and data are
displayed in the LCD window. The menu items are numbered
and can be viewed by scrolling with the
Up and Down arrows .
A LARM ( RED ) Indicates an alarm condition has been detected.
When the alarm condition is no longer valid,
the OK LED activates (turns on). To view an
alarm condition, select the active alarm menu
item or select Alarm by pressing
Shift 8 . If the
alarm conditions have been corrected, the alarm
which caused the activation of the Alarm LED
can be viewed under the Unit History menu.
C OPY Used in the DS0 mapping menu operations to copy
the last data entered into the current DS0. This key
operates without pressing the
Shift key.
H OME Returns home to the Main Menu from any menu
location.
A LARM Used as quick access to the active alarm display
menus. This can be activated while any other menu
item is in use. When the Alarm menu is exited, the
unit returns to the location of the same menu that
was active when Alarm was selected.
C LEAR Used in various menus to clear data/result fields.
D ATA F IELD You can edit menu items followed by a colon (:).
D ISPLAY
O NLY F IELD
You cannot edit menu fields followed by an
equal symbol (=). This symbol identifies a field
used for value display only.
A RROWS Menus that display small up or down arrows in
the lower right corner indicate there are more
menu items than are visible on a two-line LCD.
Access the additional items with the up or down
arrows. You can also access undisplayed menu
items by using the appropriate menu number.