User guide

– Fast Total Jitter at BER
This enables the Fast Total Jitter measurement. Before enabling this
measurement, you need to know the BER floor of the device and to specify
a BER threshold that is above that floor. For details see “Explanation of the
Fast Total Jitter Measurement” on page 246.
Pass/Fail Tab
The Pass/Fail tab of the Properties dialog box allows you to specify the criteria
to decide whether the DUT passes or fails the test. You can change pass/fail
criteria without rerunning a test. The software only uses the criteria to rate the
results of a measurement.
N O T E
The pass/fail criteria do not control measurement execution. The measurement run
will be completed even if the measurement fails for one or more of the criteria.
You can set pass/fail limits individually for the output timing parameters and the
jitter measurement parameters:
• For information on the DUT Output Pass/Fail criteria, see also “Output Timing
Measurement Parameters” on page 259.
• For information on the Jitter Pass/Fail criteria, see also “Jitter Measurement
Parameters” on page 260.
6 Advanced Analysis
254 Agilent J-BERT N4903B High-Performance Serial BERT