Technical data

Hub Hi-Speed Tests 4
Notes on USB Electrical Compliance Testing 97
Hub Receiver Sensitivity - Upstream Facing Port
Equipment Used
Tabl e 2 0 Equipment Used in Hub Receiver Sensitivity - Upstream Facing Port
Quantity Item Description/Model
1 Oscilloscope Agilent 5485xA, 9000A Series, 80000 or 90000A Series
1 Differential probe Agilent 113xA with E2699A or E2678A
1 Header adapter (only
needed if you are using
the old test fixture -
E2645-66503)
Agilent 01131-68703
1 Host test bed computer Any computer with hi-speed USB ports
1 Receiver Sensitivity test
fixture and 4” USB cable
Agilent E2649-66403 (old fixture P/N E2645-66503)
1 5V power supply Agilent 0950-2546 or equivalent
1 Digital signal generator Agilent 81130A (or 81134A with two 15433B transition time
converters connected to the pulse generator outputs)
1 USB/GPIB interface Agilent 82357A
2 6 dB attenuators Agilent 8493C
2 50 ohm coaxial cable
with male SMA
connectors at both ends
Agilent 8120-4948 or equivalent
1 5 meter USB 2.0 hi-speed
cable
Any listed on USB-IF web site