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IM AQ1210-01EN
Threshold
For each wavelength, 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. The word “PASS” is displayed in the
measurement value area.
• If the measured values exceeds the upper limit or fall below the lower limit, the corresponding bar
graph is displayed in red. The word “FAIL” is displayed in the measurement value area.
Holding the Measured Value Display
When you press the HOLD soft key, the measure value and bar graph are no longer updated. The
value at the time that you pressed the HOLD soft key remains displayed. To release the hold, press
the HOLD soft key again.
Saving the Results of Optical Power Measurements for Multi-Fiber
Cables
Skip
When Skip is selected, the corresponding core is not measured. By specifying Skip on cores that do
not need to be measured, you can save time.
Executing a Save Operation
When you execute a save operation, up to three sets of data can be saved temporarily in the save
area of the specified core number.
For details on saving data to files, see section 9.4.
Deleting Data
You can delete data from the save areas for each core number individually or all cores at once.
Note
The data saved in the save area of the core number list can be consolidated and saved in a single CSV
file. The data that you save can be edited in a spreadsheet application. The file can also be loaded into the
instrument.
Zero set
Perform a zero-set whenever necessary, such as after you have turned on the power or when the
ambient temperature changes.
Performing zero set adjusts the internal deviation of the optical power measurement section and
enables you to obtain more accurate absolute optical power values. Perform zero set on the optical
power meter.
7.4 Using the PON Power Meter (/PPM option)
