EXFO IQS-12002B Calibration System - Manual (Page 101)

Configuring the FTB-7000D OTDR on the IQS-12002B
Calibration System 97
Creating the GP-120963: Singlemode Dead-Zone Calibration Instrument
5. From the View Standard Parameters window, click Edit to enter the
resulting length for all requested wavelengths.
6. Click Close.
I
MPORTANT
Do not change the Length_Tolerance parameter.