User`s manual

U.S. Robotics I-modem Command Reference

Glossary • Page G-18

duplex

Indicates a communications channel capable of carrying signals in both directions. See

half duple

x, full duplex.

echo

See local echo.

EIA

Electronic Industries Association, which deÞnes electronic standards in the United States.

EIA-232

A technical speciÞcation published by the Electronic Industries Association that estab-

lishes mechanical and electrical interface requirements among computers, terminals,

modems, and communication lines.