Keypad; Figure 5-2. Kpa Front Panel Keypad - Comtech EF Data KPA-040 Installation And Operation Manual

KPA Ku-Band Indoor Solid-State Power Amplifier
Front Panel Operation
5.1.3

Keypad

As the manufacturing process of the KPA has evolved, there have been two keypad layouts as
shown in Figure 5-2:
Layout 1: Protruding Square Button
(KPA-020IN only – obsolete all other units)
The function of the keypad is as follows:
ENTER
(ENT)
CLEAR
(CLR)
◄ ►
(Left, Right)
▲ ▼
(Up, Down)
The current production unit's 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
IMPORTANT
numeric fields, with many digits, such as frequency or data rate.

Figure 5-2. KPA Front Panel Keypad

This key is used to select a displayed function or to execute a modem
configuration change. From the opening screen, pressing ENTER once takes
the user to the SELECT: (Main) menu.
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 or, if pressed repeatedly, to the opening
screen. From the opening screen, pressing CLEAR once takes the user to the
SELECT: (Main) menu.
These keys are used primarily to move to the next menu screen section. At
times, they may also be used to move the cursor position (e.g., when editing a
parameter value or label character).
These keys are used primarily used to move from one menu screen parameter
selection to another. At times, they may also be used to edit configuration value
digits (numbers) or label characters (e.g., letters).
Layout 2: Protruding Round Button
(current production units)
5–3
Revision 1
MN/KPA.IOM