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Chapter 3. Operation
4 2
Alarm
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.
Shift
When pressed and held, causes the shift functions
(identified above the keys) to be activated.
Clear
Used in various menus to clear data/result fields.
Cancel
Cancels the last operation or exits the current menu
level to the next higher level. If a value on a menu
was selected but not entered, Cancel terminates the
function and restores the previous setting.
Enter
Activates menu selections. Enters data value selec-
tions into the system.
Up and Down Arrows
Moves cursor through the menus or scrolls through
data selector lists.
Keypad
These nine keys have dual functions. The first func-
tion is indicated by the lettering on the key itself. This
is a standard phone keypad. The second function is a
shifted function accessed by pressing and holding the
shift key # along with another key. The shift function
is indicated by the lettering above the keys.
A, B, C, D, E, F
Used as needed to extend the menu selection fields.
2
Used to inject errors with a test pattern running.
TSU 600 User Manual
61200.076L2-1
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