2-1
IM AQ7280-01EN
Optical Pulse Measurement (OTDR)
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Index
2.1 Setting the Measurement and Analysis
Conditions
Setup Menu
1.
From the top menu, select
OTDR
.
2.
Press
SETUP
to display the Setup menu.
Set the measurement mode (Simple, Detail, PON).
Set the measurement conditions.
Set the analysis conditions.
Configure the waveform display.
See section 3.2.
Configure the system.
See chapter 7.
Setting the Measurement Mode
Simple: In Simple mode, you set only a portion of the measurement and analysis conditions
(wavelength, approximation method, etc.), and the AQ7280 automatically detects and sets the
rest of the measurement conditions related to measurement resolution—such distance range
and pulse width—and analysis conditions related to the optical fiber cable—such as index of
refraction and backscatter.
Detail: In Detail mode, you set the measurement and analysis conditions individually. If you set
the measurement conditions—such as the distance range and pulse width—to Auto, the
AQ7280 will determine the suitable range and perform the measurement like in Simple Mode,
described above.
PON: In PON mode, the AQ7280 determines the suitable measurement and analysis conditions
based on the number of optical splitter stages, route information, and distance range to set
the optimal values. These values can be changed if necessary.
Note
When you change from Simple mode to Detail or PON mode, you may be asked to enter a password. This
means that there are restrictions placed on operating the AQ7280. To change the measurement mode,
you need to verify with the AQ7280 administrator. For details on operation restrictions, see “Operation
Restrictions” in section 7.6.
Chapter 2
Optical Pulse Measurement (OTDR)