User`s guide

User’s Guide 39
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).
facsimile
A method for transmitting the image on a page from one point to
another. Commonly referred to as fax.
fax mode
The mode in which the faxmodem is capable of sending and receiving
files in a facsimile format. See definitions for V.17, V.27ter, V.29.
flow control
A mechanism that compensates for differences in the flow of data into
and out of a modem or other device. See commands &Hn, &In, &Rn.
frame
A data communications term for a block of data with header and
trailer information attached. The added information usually includes a
frame number, block size data, error-check codes, and Start/End
indicators.
full duplex
Signal will flow in both directions at the same time over one line. In
microcomputer communications, may refer to the suppression of the
online local echo.