Technical data

Hub Hi-Speed Tests 4
Notes on USB Electrical Compliance Testing 103
5 Connect the 81130A or 81134A pulse generator to the oscilloscope using
the 82357A USB/GPIB Interface.
a If you choose to use the Agilent 81130A Pulse/Pattern Generator,
connect the 8493C 6dB attenuators to OUTPUT1 and OUTPUT2 of
Agilent 81130A Pulse/Pattern Generator.
b If you choose to use the Agilent 81134A Pulse/Pattern Generator,
connect the 15433B Transition Time Converters to OUTPUT1 and
OUTPUT2 of Agilent 81134A Pulse/Pattern Generator. Agilent 15433B
Transition Time Converters are recommended, to reduce the output
edge speed of the 81134A to speed close to what the 81130A
provides.
6 Connect OUTPUT1 to SMA1 (D+) of the E2649- 66403 Device Receiver
Sensitivity test fixture using the 8120- 4948 SMA cables.
7 Connect OUTPUT2 to SMA2 (D- ) of the E2649- 66403 Device Receiver
Sensitivity test fixture using the 8120- 4948 SMA cables.
8 Check I have completed these instructions.
Running the Tests
1 Click Run Tests.
Test Instructions
The USB automated test application will prompt you to perform these
steps:
1 Exit the HS Electrical Test Tool - Device Test menu by clicking the
[Return to Main] button. From the HS Electrical Test Tool main menu
select Hub and click [TEST] to enter the Hub Test menu.
2 On the Hub Test Menu, click [Enumerate Bus] button once and verify
that the hub enumerates properly.
3 Select TEST_SE0_NAK from the Hub Command drop down menu. Click
[EXECUTE] once to place the hub into TEST_SE0_NAK test mode.