5-5
IM AQ7280-01EN
Optical Output and Optical Power Measurement
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Index
Maximum and Minimum Display
You can display the maximum and minimum measured optical power values. During measurement,
the displayed values are constantly updated.
ON: Displayed
OFF: Not displayed
Minimum
Maximum
Offset
You can add a specified value (the offset value) to measured input optical power values and display
the results as measured values.
The range is –9.900 to 9.900 dB.
Threshold
You can set upper and lower threshold values and determine whether or not the measured values
fall within them.
• The range for upper and lower threshold values is –80 to 40 dBm. The upper limit must be
greater than the lower limit.
• If the measured values are less than or equal to the upper limit and greater than or equal to the
lower limit, the corresponding bar graph is displayed in green.
• If the measured values exceeds the upper limit or fall below the lower limit, the corresponding
bar graph is displayed in red.
Measuring Optical Power Values of Multi-Core Fiber
You can save data (measurement conditions and measured value) to the AQ7280 internal memory by
specifying the core number and tape number type. You can also save the data to a CSV file.
1.
From the top menu, select
Power Meter
to display the Power Meter menu.
2.
Press the
Save Data
soft key to display the following screen.
• When the Display is set to Core List
Switch the display setting
(Core List, List).
Delete measured data.
Specifies skip
To cancel skipping, press
this soft key again.
Start saving
You can save up to three sets of data
in the save area of the specified core.
Measured data (measurement conditions and measured values)
Displays the optical power value measured on page 5-3 and the measurement conditions specified on page 5-4.
Saved result indication
Blue: Measured data saved
White: Measured data not saved
Core numbers set to Skip are not displayed.
Turn the rotary knob to move the cursor (orange frame) to the
core number that you want to save the measured data for.
5.2 Measuring Optical Power (OPM, /PC option)