Technical data

102 Notes on USB Electrical Compliance Testing
4 Hub Hi-Speed Tests
Connecting the Equipment
The USB automated test application will prompt you to perform these
connection steps:
1 Attach the 5V power supply to the E2649- 66403 (E2645- 66503 if you
are using the old fixture) Device Receiver test fixture (J5).
a Verify the green Power LED is lit.
b Leave the TEST switch at the OFF position (S1).
c The yellow LED should be off.
2 Connect the [INIT PORT] of the fixture to a Hi- Speed port on the Test
Bed Computer, using the 5 meter USB cable.
3 Connect the [TEST PORT] of the fixture to the device under test, using
the 4" USB cable.
4 Connect the Agilent 113xA differential probe to the test fixture at TP2,
using the 01131- 68703 header adapter (the header adapter is only
needed if you are using the old test fixture).