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Introducing the HP E5574A Optical Loss Analyzer
The OLA Front Panel Keys
The Softkeys
The four keys below the display are softkeys (software controlled
keys). Their meaning changes according to the instrument
application you use.
The current function of each softkey is indicated in the
corresponding box on the display.
The M
ORE
Key
The key named M
ORE
is used to activate and to display additional
softkeys. An application can thus provide more than four softkeys.
After selecting an application, always press M
ORE
to view any
additional options provided by the application. Press M
ORE
once
again to return to the first screen.
The Keypad
The keypad comprises numerical keys as well as named keys.
The numerical keys can be used to enter numerical parameters.
The named keys can be pressed at any time. They are used as
follows:
A
PPL
Use this key to invoke the “Select Application” menu which
shows the list of applications.
Figure 1-3
Select Application Display
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