EXFO PSO-200 Optical Modulation Analyzer - Manual (Page 110)

Bit Pattern Analysis and the Gearbox
102 PSO-200
Using PRBS or User-Defined Bit Patterns with the Gearbox
To import, edit and apply a custom bit pattern:
1. From the Settings menu, select Acquisition.
2. Select the General tab.
3. In the Input pattern section, select User-defined bit pattern.
4. Select the Gearbox tab. The content fits the user-defined pattern
context.
5. As a starting point for the next steps, you can import a Gearbox
configuration file (.gboxcfg) by clicking Import and selecting the file.
See Exporting Gearbox Setups on page 104.
6. Select the Gearbox layout corresponding to your data streams. For
details see Gearbox Streaming Types on page 88. The layout and
modulation determine the number of bit streams to configure.
Edit or import
bit pattern
Number of lines
depend on layout
and modulation