Getting Started
14
Serial BERT 12.5 Gb/s User Guide
1.3.5 Performance Recommendations
• When using differential-mode connections, ensure the cables are phase
balanced
• Differential connectors may be used single-ended if unused ports are
terminated in 50 Ω
• Use high quality cables and connector savers (or adaptors)
• Keep cable lengths short and minimize number of cable bends
• Use a 7-10 in-lbs torque wrench when attaching connectors
• Terminate all unused RF connectors with 50 Ω terminations
1.4 Connect the Hardware
• Connect power cord to adaptor to N4962A; plug in the power cord
• Connect TX CKO to TX CKI with included coaxial cable
• Connect RX CKO to RX CKI with included coaxial cable
• Connect the OUT (and optionally OUT¯¯¯ to your DUT input
• Connect your DUT output to IN (and optionally IN¯¯)
1.5 Turn It On
• Turn on the power switch from the back panel
• Press the Data Path > Select Path button and select Enabled
o This will turn on the PRBS output; when Disabled is selected, the
instrument is in a 'safe mode' and no output is generated
• Press the Display > Scroll ↓ button and select Ampl (V)
• Press the Adjust > Ampl +/- buttons to set the single-ended output
voltage
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