Front Panel Keypad; Figure 3-2. Keypad - Comtech EF Data SDM-300A Installation And Operation Manual

SDM-300A Satellite Modem
3.1.2

Front Panel Keypad

The front panel keypad permits local operation of the modem. The keypad consists of six
keys (Figure 3-2).
EN TER
C LE AR
Each key provides one or more logical functions. These functions are defined in the
following table.
ENTER
CLEAR
Left and Right
Diamond Keys
Top and Bottom
Diamond Keys
The modem responds by beeping whenever a key is pressed:
•
•
Rev. 4

Figure 3-2. Keypad

This key is used to select a displayed function or to execute a modem
configuration change.
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.
These keys are used to move to the next selection or to move the cursor functions.
Note: Throughout this chapter, [←] and [→] are used to indicate left and right
diamond keys.
These keys are used primarily to change configuration data (numbers). At times,
they are also used to move from one section to another.
Note: Throughout this chapter, [↑] and [↓] are used to indicate top and bottom
diamond keys.
A single beep indicates a valid entry and the appropriate action was taken.
A double beep indicates an invalid entry or a parameter is not available for
operation.
Operation
3–3