Tektronix TDSUSB2 - Page 227

Glossary Glossary
Upstream
The direction of data flow towards the host. An upstream port is the port on a device electrically closest to
the host that generates upstream data traffic from the hub. Upstream ports receive downstream data traffic.
V
BUS
It is the supply voltage which a function or hub requires to work.
TDSUSB2 Universal Serial Bus Measurements Package 215