Dut Rx Tests - Tektronix TMT4 User Manual

Operation

DUT Rx tests

The DUT receiver (Rx) test is a functional evaluation of the DUT's receiver path.
This test determines how far the transmitted signal from the Margin Tester can be decreased, within a range of operation, before errors are
returned. It allows you to evaluate functional Rx link health performance in as little as 30 seconds.
This quick test consists of a link train between the Margin Tester and DUT, where the DUT selects the presets for communication. The
Margin Tester then steps down the transmitted amplitude by dropping the main cursor value by lane/preset, within an expected range of
operation.
This provides a high-level evaluation of Rx performance quickly, which can help you determine if there are any problem lanes that may be
worth investigating further with other equipment. If no errors are indicated, this is considered a functional pass. If errors are indicated, the
main cursor value where the error occurred is displayed, and the test is considered a functional fail.
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