Comtech EF Data SDM-100A - Manual (Page 37)

SDM-100A Satellite Modem Operation
Rev. 0 3–3
3.1.3 Front Panel Controls
The modem is locally operated by using the front panel keypad (Figure 3-1), which
consists of the following keys:
[ENTER] This key is used to select a displayed function, or to execute a change to the
modem’s configuration.
[CLEAR] This key is used to back out of a selection, or to cancel a configuration change
which has not been executed using [ENTER].
Pressing [CLEAR] generally returns the display to the previous selection.
[ ← ] and [ → ] These keys are used to move to the next selection, or to move the cursor for
certain functions.
[ ↑ ] and [ ↓ ] These keys are used primarily to change configuration data (numbers), but are
also used at times to move from one section to another.
The modem responds by beeping whenever a key is pressed.
• A single beep indicates that the key pressed was a valid entry and the appropriate
action was taken.
• A double beep when a key is pressed indicates an invalid entry.