Agilent Technologies N5416A Manuale di Servizio Pagina 196

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196 Notes on USB Electrical Compliance Testing
7 Low and Full Speed Tests
4 Connect the Channel 1 probe to Vbus on the SQiDD board with the
probe's ground to GND on one of the 100 mA load boards. This is the
port under test.
5 Connect the Channel 2 probe to the Vbus test point on the load board
connected adjacent to the USB port to be measured. This provides the
oscilloscope trigger.
6 Click OK to close the Test Instructions dialog.
Viewing Test Results
1 When the Testing Complete dialog appears, click OK.
The Results tab shows the test results.
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