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IM AQ7280-01EN
Optical Pulse Measurement (OTDR)
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Index
Number of Cores in Each Division
When Tape No is set to OFF, you can set the number of columns shown on the main view screen.
If you will set the number of cores to 97 or higher, first set Num of Units to 10 cores.
8 cores
10 cores
8 columns
10 columns
File Name Type
Set the file name type for measurement result files (.SOR extension) to one of the following options.
• WL + No. Example: 1310 nm_0001.SOR
• No. + WL
• Project Name + WL + No.
• No. + Project Name + WL
• WL + Project Name + No.
Measurement Conditions
After a project setup is complete and multi-core fiber measurement is started, if measured data is
already saved, changing the following measurement conditions will cause a confirmation screen for
deleting the measured data to appear. If you confirm, all measured data is deleted.
• Wavelength
• Distance Range
• Pulse Width
• Attenuation
• Sample Interval
• Average Method
• Average Unit
• Average count and average duration
• Initialization
For details on measurement conditions, see page 2-5 and subsequent pages.
Analysis Conditions
After a project setup is complete and multi-core fiber measurement is started, if measured data
is already saved and event analysis has already been executed, changing the following analysis
conditions will cause a confirmation screen for re-executing the entire event search to appear. If you
confirm, event search will be executed. If the fault event display is turned on, pass/fail judgment will be
re-executed. The measured data up to that point will be retained.
If you change the fault event condition, pass/fail judgment will be re-executed on all waveforms.
• Index of refraction (IOR)
• Backscatter level
• Event search conditions
For details on analysis conditions, see page 2-10 and subsequent pages.
Note
• When you change measurement core information, measurement conditions, or analysis conditions, the
project file (.MPJ extension) is automatically overwritten.
• If the number of cores exceeds 100, measurement conditions and analysis conditions cannot be changed.
2.8 Performing Multi-Core Fiber Measurement