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Keysight N5990A-301 PCI Express Link Training Suite User Guide
4
Test Instrument Setup
N4903B J-BERT Setup
• An N4903B J-BERT is required
•
If a J20 module is installed, it can be used to generate sinusoidal
interferences.
•
If jitter and/or SSC is available, these parameters can be controlled.
• An N4916B de-emphasis signal converter can be used to generate de-
emphasized signals. The N4916B must be connected to the J-BERT via
USB.
• An N4880A reference clock multiplier can be used to multiply a
reference clock from a DUT, in order to use the DUT's clock for pattern
generation. The N4880A must be connected to the J-BERT via USB.
• An 81150A arbitrary waveform generator (AWG) can be used to
generate common-mode sinusoidal interference. If no AWG is
connected, interference is generated using the J-BERT’s J20 module, if
available.
• A NetIo230B Power Switch can be used to power cycle the DUT
automatically.
The following sections show connection diagrams for different DUT types
and data rate.
