Zhone 3821Plus User's Guide download pdf (Page 164)

COMSPHERE 3821Plus Modem

Glossary-4 January 1999 3821-A2-GB20-40

directory location Nonvolatile memory that stores up to ten telephone numbers. Each directory location can

have up to 40 characters entered.

DOC Canadian Department of Communication.

download A process that transfers modem firmware from a locally attached PC to a modem or

allows the cloning of firmware from a local modem to a remote modem. Also, the

process of moving data from a host computer to an attached computer.

DTE Data Terminal Equipment. The equipment, such as a computer or terminal, that provides

data in the form of digital signals.

DTMF Dual Tone Multi-Frequency. DTMF tones are the sounds produced by pressing the keys

of a Touch Tone phone, or by dialing a number with a modem using the ATDTn

command.

EIA Electronic Industries Association. This organization provides standards for the data

communications industry.

EIA-232-E An Electronic Industries Association’s standard defining the 25-position interface

between data terminal equipment and data communications equipment.

EIA RS-366-A An Electronic Industries Association’s standard defining the 25-position interface

between data terminal equipment and data communications automatic calling equipment.

EPROM Erasable programmable read-only memory.

error control An algorithm used to correct data transmission errors.

escape sequence Default setting is +++. This sequence lets you switch your modem from Data mode to

Command mode.

ETC Enhanced Throughput Cellular. A proprietary analog cellular transmission protocol.

extended result codes An asynchronous message (in either numbers or words) that includes VF data rate and

error control information the modem sends to the DTE after executing or trying to

execute a command.

fax modem A modem capable of emulating some features of a fax machine. Working under the

control of fax software, a fax modem can communicate with a fax machine or with

another fax modem.

fax software A program or system of programs installed on a computer that allow a fax modem to

send and receive facsimile images.

FCC Federal Communications Commission. Board of Commissioners that regulates all

interstate and foreign electrical communication systems that originate from the United

States.

full-duplex Simultaneous, two-way communications.

Group III A fax standard that specifies a rate of transmission of about one page per minute.

half-duplex Two-way data communications allowed in only one direction at a time.

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Zhone 3821Plus User's Guide Page 164