3Com 56K Command Reference Manual page 201

data mode
data set
data terminal
equipment (DTE)
DCE
default
digital loopback
digital signals
DSR
DTE
duplex
echo
EIA
EIA-232
equalization
The mode in which the fax modem is capable of sending and receiving
data files. A standard modem without fax capabilities is always in Data
mode.
Another way of saying "modem."
The device that generates or is the final destination of data.
See data communication equipment.
Any setting assumed, at startup or reset, by the computer's soft-ware
and attached devices, and operational until changed by the user.
A test that checks the modem's EIA-232 interface and the cable that
connects the terminal or computer and the modem. The modem
receives data (in the form of digital signals) from the computer or
terminal, and immediately returns the data to the screen for
verification.
Discrete, uniform signals. In this manual, the term refers to the binary
digits 0 and 1.
See data set ready.
See Data Terminal Equipment.
Indicates a communications channel capable of carrying signals in both
directions. See Half Duplex, Full Duplex.
See local echo.
Electronic Industries Association, which defines electronic standards in
the U.S.
A technical specification published by the Electronic Industries
Association that establishes mechanical and electrical interface
requirements between computers, terminals, modems, and
communication lines. EIA-232 was formerly known as RS-232.
A compensation circuit designed into modems to counteract certain
distortions introduced by the telephone channel. Two types are used:
fixed (compromise) equalizers and those that adapt to channel
conditions. 3Com high speed modems use adaptive equalization.
G 5
LOSSARY