Technical data

122 Notes on USB Electrical Compliance Testing
4 Hub Hi-Speed Tests
Running the Tests
1 Click Run Tests.
Test Instructions
EL_38 EL_39 Suspend Timing Response
The USB automated test application will prompt you to perform these
steps:
1 On the Hub Test menu of the HS Electrical Test Tool software, click
[Enumerate Bus] once.
2 Select SUSPEND from the Hub Command drop down menu. Click
[EXECUTE] once to place the device into suspend. The captured
transition should be as in the figure below.