Comtech EF Data CPA - Manual (Page 59)

CPA C-Band Indoor Solid-State Power Amplifier Revision 1
Front Panel Operation MN/CPA-IN.IOM
5–3
5.1.3 Keypad
As the manufacturing process of the CPA has evolved, there have been two keypad layouts. As
shown in Figure 5-2:
Figure 5-2. CPA Front Panel Keypad
The function of the keypad is as follows:
ENTER
(ENT)
Use this key to select a displayed function or to execute a modem configuration change. From the
opening screen, pressing ENTER once takes you to the SELECT: (Main) menu.
CLEAR
(CLR)
Use this key to back out of a s election or to cancel a c onfiguration 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 you to the SELECT: (Main) menu.
◄ ►
(Left, Right)
Use the ◄ ► arrow keys primarily to move to the next menu screen section.
When needed, you may also use these keys to move the cursor position (e.g., when editing a
parameter value or label character).
▲ ▼
(Up, Down)
Use the ▲ ▼ arrow keys primarily t o move f rom one m enu s creen parameter s election t o
another.
When needed, you may also use these keys to edit configuration value digits (numbers) or label
characters (e.g., letters).
The current production unit’s keypad has an auto-repeat feature. Holding a key
down for more than 1 second repeats the key action automatically at the rate of
15 keystrokes per second. This is useful particularly when editing numeric fields
with many digits, such as frequency or data rate.
L ayout 1: P rotruding S quare B utton
(obs olete all units )
L ayout 2: P rotruding R ound B utton
(current production units )