9520 Front Panels
Display Layout and Indicators
A 4 line x 20 character vacuum fluorescent display module displays parameters
and status information. The status information is located in the upper-left corner
of the display, between the two brackets. There are three enunciators:
Vertical Arrow
Indicates there are additional pages to the current
menu.
Blinking Light
Indicates the unit is actively generating pulses, or
armed and waiting for an external trigger.
Musical Note
Indicates the function key has been pressed.
The upper-right side of the display contains the title of the currently displayed
menu. The rest of the display is used for system parameters. The display
brightness may be adjusted, allowing the instrument to be used under various
lighting conditions.
Description of Front-Panel Area
Keypads
Three keypad areas provide fast access to various menus and easy editing of
system parameters.
Channel Keypad
Provides one touch access to the menus for setting up
the channel parameters. Pressing the appropriate let-
ter will display the parameters for the corresponding
channel.
Arrow Keypad
The up/down arrows are used to increment/decrement
the current parameter (indicated by the blinking cursor).
The position of the cursor controls the step size for
each increment. The right/left arrow moves the cursor
to different positions within the current parameter. The
NEXT key selects the next parameter in the currently
displayed menu. The yellow FUNC key allows the keys
to select the yellow functions.
Numeric Keypad
Allows numbers and alphanumeric values to be en-
tered. When entering alphanumeric values, pressing a
key will display the first letter shown on the key. Re-
peated key presses will toggle through all the letters,
both upper and lower case, shown on the keycap. To
enter two letters which appear on the same keycap,
