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3 keypad – Comtech EF Data LBC-4000 User Manual

Page 59

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LBC-4000 L-Band Up/Down Converter System with Ethernet

Revision 2

Front Panel Operation

MN-LBC4000A

5–3

5.1.3

Keypad

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. 

 
The function of the keypad is as follows: 
 

KEY

USE THIS KEY TO...

[ENT]

(ENTER)

...display the nested menu for a selected function, or to execute (save) a configuration change.

[CLR]

(CLEAR)

...back out of a selection or to cancel a configuration change that has not been executed using
ENTER. Press [CLR] to return to the previous menu screen.

[

] []

(Left, Right)

...navigate between available selections, or to move the cursor position, on any menu screen.

[

] []

(Up, Down)

...scroll through pre-defined parameter settings that are available at the current cursor position,
and to change (edit) the alphanumeric selection (i.e., numbers for configuration data, letters for
text strings) at the current cursor position.