User's Manual

Front Panel Operation 3-2
DataNex EMS Wireless, DATA-20 Digital Radio
Figure 3-1.DATA-20 Front Panel
3.2.1 LCD Display
The Liquid Crystal Display (LCD) on the DATA-20 front panel is the primary user interface and
provides status, control, configuration, and calibration functionality. The menu navigation and
various screens are explained in detail later in this section.
Backlight:
An automatic backlight is built-in to the LCD for better clarity under low-light conditions. This
backlight is enabled on power-up and will automatically turn off if there is no button activity by the
user. The backlight will automatically turn on as soon as any button is pressed.
Contrast Adjustment:
Internal adjustment on board (in back of front panel button PCB).
3.2.2 Cursor and Screen Control Buttons
The buttons on theDATA-20 front panel are used for LCD screen interface and control functions:
ENT
<ENTER> Used to accept an entry (such as a value,
a condition, or a menu choice).
ESC
<ESC> Used to “back up” a level in the menu
structure without saving any current
changes.
<UP>,<DOWN> Used in most cases to move between the
menu items. If there is another menu in
the sequence when the bottom of a menu
is reached, the display will automatically
scroll to that menu.
<LEFT>,<RIGHT> Used to select between conditions (such
as ON/OFF, ENABLED/DISABLED,
LOW/HIGH, etc.) as well as to increase or
decrease numerical values.