Upstream
The path from a subscriber device to the headend. Some older cable docu-
mentation may refer to this as the return path or reverse path.
USB
(Universal Serial Bus) An interface used for connecting a variety of acces-
sories, such as keyboards, mice, printers, and communications devices
(such as cable modems) to a single computer.
Touchstone TM722 Telephony Modem User’s Guide
72
