Agilent Technologies N4962A Guide de l'utilisateur Page 15

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Getting Started
Serial BERT 12.5 Gb/s User Guide 15
1.6 Align Clock and Data
Press the Data Path > PRBS¯¯¯¯ button only if the DUT is inverting
o When on, the PRBS will generate an inverted output signal
Press the Display > Scroll button and select Ø
Press the Adjust > Config State + button to auto-set the detector phase
Observe the Error ε light
o The light indicates errors are being measured by the error detector, if
the light is on, no error-free sampling point could be found
1.7 Make the Measurement
Press the Receiver > On button and ensure the light is on
Press the Display > Scroll button and view Err (error counter)
Press the Display > Scroll ↓ button and view BER
Press the Display > Scroll ↓ button and view є time (sec)
Press the Receiver > On button to end the measurement
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