Qphy-usb software option – Teledyne LeCroy QPHY-USB User Manual
Page 7
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QPHY-USB Software Option
QPHY-USB Operator’s Manual Rev F
7
Hub tests
•
HS Signal Quality (Upstream/Downstream)
•
HS Upstream Packet Parameters
•
HS Upstream Chirp Timing
•
HS Upstream Suspend / Resume / Reset
•
HS Disconnect
•
HS J and K Voltages (Upstream/Downstream)
•
HS Upstream Repeater
•
HS Downstream Repeater
•
HS Upstream Receiver Sensitivity
•
FS Signal Quality (Upstream/Downstream)
•
LS Signal Quality (Upstream/Downstream)
•
Inrush current
•
Drop
•
Droop
•
Back-Voltage
In the previous tests, the J and K Voltages tests are performed with the use of a digital voltmeter. This test is
performed for Hosts, Devices, and Hubs.
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