User guide

• Clock Divider
• Second Channel
• Multiplexer mode
• De-Emphasis
N O T E
The options on the Aux Data Output dialog are disabled when the N4876A
Multiplexer is connected to the N4903B Serial BERT.
N O T E
The De-Emphasis option works only if there is no external De-Emphasis box
connected to the N4903B Serial BERT.
Setting the Data Pattern on the Aux Data Out Port (Opt 002)
To set up both patterns using "Second Channel" mode (Opt 002), begin by setting
up the Aux Data:
• From the PG Setup menu, click Aux Data Setup to open PG Aux Data Output
dialog.
• Select "Second Channel".
• Create your pattern for the Aux Channel in the Pattern Editor by opening the
“Edit Pattern on File” even if you don’t have a pattern on file.
4 Setting up the Pattern Generator
150 Agilent J-BERT N4903B High-Performance Serial BERT