Technical data

Hub Upstream Signal Quality Testing 4
DSOX4USBSQ USB 2.0 Signal Quality Analysis Application Electrical Testing Notes 59
Hub Upstream Hi-Speed Compliance Test Packets
To set up the Host computer to transmit compliance test packets, perform
these steps:
1 Invoke the HS Electrical Test Tool software on the Hi- Speed Electrical
Test Bed computer. Select Hub and click the TEST button to enter the
Hub Test dialog box.
2 In the Hub Test dialog box, the hub under test should be enumerated
with the hub's VID shown together with the USB address.
Select TEST_PACKET from the Hub Command drop down menu.
3 Click EXECUTE.