EXFO PSO-100 Series Optical Sampling Oscilloscopes - Manual (Page 72)

Setting up and Using the Optical Sampling Oscilloscope
64 PSO-100
Using Masks
The figure below shows the result from a mask test on 40 Gb/s NRZ data.
The mask that is centered to the eye diagram is a standard square shaped
mask with a height of 50 % of the eye amplitude (P
one
-P
zero
), and a width
of 20 % of the eye period.
To set up the mask parameters:
1. From the main window, select the Display menu.
2. Select Mask test, then Settings.
Mask
Margin