Technical data

72 Notes on USB Electrical Compliance Testing
4 Hub Hi-Speed Tests
• Drop/Droop – Downstream facing ports.
• Back- voltage.
Before Running These Tests
If you haven’t already performed the initial equipment set up, see “Setting
Up the Equipment" on page 25.
Selecting the Hub Test Environment Setup
1 In the USB automated test application, select the Hub test environment.
2 To do automatic testing, select Matlab as the Test Method. To do
manual testing, select Both as the Test Method. See page 23 for more
information.