9-4
IM AQ1200-01EN
Turning the Maximum and Minimum Value Menu On and Off
In the Power Meter screen, you can display a menu that shows the maximum (Max) and minimum (Min)
measured values.
On
The menu is displayed.
Off
The menu is not displayed.
Turning the Maximum and Minimum Value Display On and Off
In the menu that appears in the Power Meter screen, you can start the display of the maximum and
minimum measured values. The maximum and minimum value displays are constantly updated
while measurement is being performed.
On
The maximum and minimum measured values from the time that you selected On are constantly
updated and displayed.
Off
The maximum and minimum values are not displayed. The maximum and minimum values are
reset when you select Off.
Measured value
Turns the max/min value display on and off
Maximum value
Minimum value
Turning the Interlocking of the Light Source and Optical Power
Meter Settings On and Off
You can connect an optical fiber between the light source port of an AQ1200 and the optical power
measurement port of another AQ1200 and use this setting so that the power meter settings are
synchronized to the light source wavelength and modulation mode settings.
On
After On is selected, the power meter settings are synchronized to the light source settings.
Off
The power meter settings are not synchronized to the light source settings.
Offset
The value that you specify (the offset value) is added to the measured optical power values that are
displayed.
The range is –9.900 to 9.900 dB.
Threshold Value
You can set upper and lower threshold values and determine whether or not the measured values fall
within them.
• The range for the upper and lower threshold values is –80 to 40 dBm. You must set the values so
that the upper threshold value is greater than the lower threshold value.
• When a measured value is within the upper and lower thresholds, its bar graph is green.
• When a measured value exceeds the upper threshold or falls below the lower threshold, its bar
graph is red.
Holding the Measured Value Display
When you press the HOLD soft key, the following actions are held: the updating of the measured
values, bar graph, and maximum and minimum values and the showing or hiding of the maximum and
minimum value display. The values at the time that you pressed the HOLD soft key remain displayed.
To release the hold on the display, press the HOLD soft key again.
Not updated
The display is being held.
9.2 Setting Optical Power Measurement Conditions and Holding the Display
