User guide

Table 6
Pattern Type Next Required Action
Sequence Enable this checkbox if you intend
to download a user-defined
sequence. Patterns generated
within a sequence are defined in
the Sequence Editor.
N O T E
Your instrument also contains user patterns that mimic real data packets and are
designed to stress specific characteristics of your device. For more information, see
“Example Patterns” on page 70.
3
If you want to select a different pattern for the error detector, clear the checkbox
Error Detector Pattern tracks the Pattern Generator Pattern. The Error
Detector Pattern tab appears. Switch to this tab and repeat step 2.
4
If you have selected "8B/10B Symbol comparison" as an error ratio, then
ensure that the following conditions are met when the checkbox Error Detector
Pattern tracks the Pattern Generator Pattern is selected or cleared:
• Condition 1: When pattern tracking check box is selected
– Only user pattern or memory pattern that contains valid 10B symbols
can be loaded in the Pattern Generator.
– Error Detector will follow the Pattern Generator's pattern.
• Condition 2: When pattern tracking check box is cleared
– Any pattern can be loaded in Pattern Generator
– Only user pattern or memory pattern that contains valid 10B symbols
can be loaded in the Error Detector.
5
Click OK to finish.
The selected patterns are immediately loaded to the pattern generator and error
detector. The types of patterns that are currently loaded to the pattern generator
and the error detector are always displayed in the status bar at the bottom of the
screen.
3 Setting up Patterns
74 Agilent J-BERT N4903B High-Performance Serial BERT