EXFO IQS-12004B DWDM Passive Component Test System for IQS-500 - Manual (Page 126)

Referencing the System with MultiPath Testing Option
114 IQS-12004B
Calibrating the System Wavelength Response
To perform a null measurement:
1. Put protective caps on power meter detectors as well as on the input
and output ports of the WRM.
2. Perform the null measurement.
OR
1. Connect the rigid and semi-rigid patchcords to the appropriate
modules (source, polarization state adjuster, wavelength reference
module and switch). See To work with the MultiPath Testing Option,
you will have to add a switch to your standard IQS-12004B DWDM
Passive Component Test System to benefit from its inherent features. on
page 26 for more information.
2. Put protective caps on power meter detectors.
3. Turn the source off.
4. Perform the null measurement.
Calibrating the System Wavelength Response
This operation allows to correct any variations in the response and
sensitivity of the different power meters.
To perform a wavelength response calibration:
1. Connect output port 1 of the switch to channel 1 of the power meter.
2. Perform the wavelength response calibration.
3. Repeat the previous steps with all of the remaining power meter
channels.