Technical data

224 Notes on USB Electrical Compliance Testing
7 Low and Full Speed Tests
Back-Voltage Test After Enumerate
Equipment Used
Selecting the Tests
Configuring the Tests
Connecting the Equipment
The USB automated test application will prompt you to perform these
connection steps:
1 Connect power supply to device/hub under test. Plug device/hub under
test into a known good host. Verify proper enumeration. Unplug USB
Tabl e 4 3 Equipment Used in Back-Voltage Test
Quantity Item Description/Model
1 Digital Multimeter
(DMM)
Agilent 34401A or equivalent
1SQiDD board or
back-voltage test fixture
Agilent E2646A/B
1 1 meter USB cable Any listed on USB-IF web site