Anritsu Network Master MT9090A Series, Operation Manual, Page: 175 / 200

MT9090A/MU909011A Network Master User’s Guide 7-13
Calibration
The parameters that can be calibrated with the MU909011
Series are the Backscatter coefficient (BSC) level and the
measurement accuracy of OPM (Optical Power Meter). Of
these, the Backscatter coefficient level is the only parameter
that the user can calibrate.
Note
Note
Calibration of the measurement accuracy of the OPM
applies only to units equipped with the optional Optical
Power Meter.
Backscatter Coefficient Level Calibration
Prepare the optical connection where the return loss (R
0
dB)
is known, then connect the devices as shown in the following
figure.
Figure 7-8: Backscatter Coefficient Level Calibration –
Connection Diagram
Calibration Procedure:
1. Start the measurement.
2. When the measurement is complete, the return loss
of the known point (the optical connector where the
return loss is known) is displayed in the Refl. (dB)
MU909011
Series
SM Optical Fiber SM Optical Fiber
Optical connector where return loss is known