Comtech EF Data CDM-710 Installation And Operation Manual page 110

CDM-710/L Broadcast Satellite Modem
Front Panel Operation
The keypad has an auto-repeat feature. If a key is held down for more
than 1 second, the key action will repeat, automatically, at the rate of
15 keystrokes per second. This is particularly useful when editing
numeric fields, with many digits, such as frequency or Data Rate
Item 3 – The Vacuum Fluorescent Display (VFD) is an active display showing two
lines of 24 characters each. It produces a blue light with adjustable brightness.
Compared to a Liquid Crystal Display (LCD), it has superior viewing characteristics
and does not suffer problems of viewing angle or contrast.
The opening screen displays once you apply power to the unit. The top line
identifies the unit model (i.e., CDM-710, or CDM-710L). The bottom line displays
the running Firmware Version (this number may vary).
Press any key to display the top-level Select menu. On most menu screens, you
will see a flashing, solid-block cursor that blinks at a once-per-second rate. This
indicates the currently selected item, digit, or field:
Where this solid block cursor obscures the item under edit (e.g., a numeric field),
the cursor automatically changes to an underline cursor:
To prevent the display from becoming burnt by a constant image, the unit
employs a screen saver feature that activates after one hour. This message
constantly scrolls and wraps across the screen. The top line displays the Circuit ID
– the user-defined name for the unit); the bottom line displays the message
"Press any key..." as shown:
CDM-710 L MODEM
Firmware Version: X.X.X
Config: Config Monitor
Test Info Save/Load Util
Tx Freq: 0140.0000 MHz
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MN/CDM710.IOM
Revision 12