Vfd - Vacuum Fluorescent Display; Arrow Keys; Numeric Keys; Table 4-1. Front Panel Functions - Comtech EF Data DMD-2050E Installation And Operation Manual

DMD2050E Universal Satellite Modem
Area
VFD

Arrow Keys

Numeric Keys

LED Lights

4.2.1 VFD - Vacuum Fluorescent Display

The VFD is a 2-line by 16-character vacuum fluorescent display. The light dims automatically
after the VFD has been inactive for some time.
The VFD shows different data in two areas. The upper area shows the parameter that is being
monitored, such as Frequency or Data Rate. The lower area shows the value of the monitored
parameter.
4.2.2 Arrow Keys
Use the arrow keys (), to
Move through menus and parameters
•
Move the cursor on the display
•
Increase or decrease values
•
Change parameters
•
4.2.3 Numeric Keys
Use the Numeric, Clear and Enter keys to enter data into the unit.
Parameter Type
Fixed Point
Change Digit
Decimal
Unsigned
Change Digit
Hexadecimal
Enumerated
Date/ Time
Change Digit
MN-DMD2050E Revision 2

Table 4-1. Front Panel Functions

Shows operating parameters and configuration data
Controls the up, down, right and left cursor position on the display
Allows entry of data
Shows the status of the unit, see section 4.2.4.

Table 4-2. Front Panel Key Functions

0 – 9

Change ±
(If Signed)
Increase Digit
N/A Last Value
N/A
Function
 
Change ± Move Move
(If Signed) left right
Move Move
Decrease Digit
left right
Next Value N/A
Move Move
N/A
left right
User Interfaces
Clear &  Clear & 

N/A
N/A
N/A N/A
N/A
N/A
N/A
N/A
N/A
4–2