Paradyne KeepInTouch 3760 User Manual page 105

TXD
Transmit Data. Pin 2 of an EIA RS-232 interface that is used by
the computer to transmit data to the modem. Conversely, the
modem uses Pin 2 to receive data from the computer.
U
upload
A file transfer in which you send a file to another computer.
User 0
A user-defined configuration area containing customized
configuration options for a specific application.
User 1
A user-defined configuration area containing customized
configuration options for a specific application.
V
V.21
A standard for modems operating full-duplex with asynchronous
or synchronous data at 300 bps over dial telephone lines.
V.22
A standard for modems operation full-duplex with asynchronous
or synchronous data at 1200 bps over dial telephone lines.
V.22 bis
A standard for modems operating full-duplex with asynchronous
or synchronous data at 2400 or 1200 bps over dial telephone
lines.
GL-10
Issue 3 April 1994