Technical data

198 Notes on USB Electrical Compliance Testing
7 Low and Full Speed Tests
Configuring the Tests
Connecting the Equipment
The USB automated test application will prompt you to perform these
connection steps:
1 Attach the current probe:
For the 54831B/D or 54832B/D oscilloscope, attach the 1147A current
probe to the oscilloscope's Channel 4 input.
For the 54853A, 54854A, 54855A oscilloscope:
a Attach the E2697A high- impedance connector to the Channel 4
input.
b Attach the N2774A current probe to the E2697A.
c Attach the N2775A power supply to the N2774A.
d Choose the Setup- >Channel 4- >Probes- >Configure Probing System
command and select "Connect 0.1V/A Current Probe".
2 Zero the current probe.
3 Check I have completed these instructions.