US Robotics 3CP5613 User Manual page 54

G
LOSSARY
default
Any setting assumed, at startup or reset, by the computer's software and
attached devices. The computer or software will use these settings until
changed by the user or other software.
detect phase
In the ITU-T V.42 error-control protocol, the first stage in establishing if
both modems attempting to connect have V.42 capability.
digital loopback
A test that checks the modem's RS-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.
DTE
Data Terminal (or Terminating) Equipment. A computer that generates or
is the final destination of data.
duplex
Indicates a communications channel capable of carrying signals in both
directions. See half duplex, full duplex.
Electronic Industries Association (EIA)
Group which defines electronic standards in the U.S.
error control
Various techniques that check the reliability of characters (parity) or
blocks of data. V.42 and MNP error-control protocols use error detection
(CRC) and retransmission of flawed frames (ARQ).
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