Filter
Top Products
G
LOSSARY
5
data mode
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.
data set
Another way of saying "modem."
data terminal
equipment (DTE)
The device that generates or is the final destination of data.
DCE
See data communication equipment.
default
Any setting assumed, at startup or reset, by the computer's soft-ware
and attached devices, and operational until changed by the user.
digital loopback
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.
digital signals
Discrete, uniform signals. In this manual, the term refers to the binary
digits 0 and 1.
DSR
See data set ready.
DTE
See Data Terminal Equipment.
duplex
Indicates a communications channel capable of carrying signals in both
directions. See Half Duplex, Full Duplex.
echo
See local echo.
EIA
Electronic Industries Association, which defines electronic standards in
the U.S.
EIA-232
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.
equalization
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.