EXFO IQS-12002B Calibration System - Manual (Page 92)

Configuring the FTB-7000D OTDR on the IQS-12002B
88 IQS-12002B
Creating the GP-121723: 50-m Launch Fiber as a Calibration Instrument
4. From the View Standard Parameters window, click Edit to enter the
length of the reference standard given on the acceptance test plan for
all requested wavelengths (e.g., 56.1 m).
5. Click Close.
I
MPORTANT
Ensure that the Length Tolerance parameter is set to 5 m.