Comtech EF Data CDM-710G, Installation And Operation Manual

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CDM-710G High-Speed Satellite Modem Revision 1
Front Panel Operation MN-CDM710G
6–4
6.1.3 Front Panel Vacuum Fluorescent Display (VFD)
The CDM-710G features a V acuum F luorescent
D isplay (VFD). The VFD is an active display
showing two lines of 24 characters each. It
produces a blue light, the brightness of which can
be controlled by the user. Compared to a
L iquid
C rystal D isplay (LCD), it has greatly superior viewing characteristics and does not suffer
problems of viewing angle or contrast.
As shown above, the ‘welcome screen’ is displayed whenever power is first applied to the unit.
The top line ident
i fies the unit model (i.e., CDM-710G, or CDM-710GL as shown); the bottom
line displays the CDM-710G’s installed Firmware Version (version number varies).
Pressing any key takes the user to the top-level Select menu. On most menu screens, users will
see a flashing, solid-block cursor that blinks at a once-per-second rate. This indicates the
currently selected item, digit, or field:
CONFIG: R emote Tx Rx
Int1 Int2 Ref Aux Alarms
Where this solid block cursor would obscure the item being edited (e.g., a numeric field), the
cursor will automatically change to an underline cursor:
Tx Freq: 0140.0000 MHz
(
◄ ► ▲ ▼ ENTER)
To prevent the display from becoming burnt by a constant image, the unit employs a screen saver
feature that activates after one hour and constantly scrolls and wraps a message across the screen.
The top line of the screen saver display shows the Circuit ID, which is user-configurable; the
bottom line displays the message ‘
Press any key…
’ as shown:
Circuit ID:---------------
---Press any key...
Press any key to restore the previously active screen.