User`s guide

GLOSSARY

dictionary

The term used for compression codes built by the

V.42 bis data compression algorithm.

digital loopback

A test that checks the modem's RS-232 interface

and the cable that connects the terminal (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

Signals that are discrete and uniform. In this

manual, the term refers to the binary digits 0 and

1. These signals are in contrast with analog signals.

DTE

Data Terminal (or Terminating) Equipment is a

computer that generates or is the final destination of

data.

duplex

Duplex indicates a communications channel capable

of carrying signals in both directions. See half

duplex, full duplex.

Electronic Industries Association (EIA)

This association is a group which defines electronic

standards in the U.S.

error control

A variety of 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. This is commonly

referred to as fax.