Glossary

DCE

Data Communications Equipment. The equipment that provides the functions required to

 

establish, maintain, and end a connection. It also provides the signal conversion required

 

for communication between the DTE and the network.

DDS

Digital Data Service. Provides digital communication circuits.

DMI

Data Mode Idle. Refers to a sequence of ones transmitted or received on the DDS

 

network.

DSR

Data Set Ready. An EIA-lead standard for V.24 circuit CT 107; an output signal

 

(DCE-to-DTE).

DSU

Data Service Unit. Data communications equipment that provides an interface between the

 

DTE and the digital network.

DTE

Data Terminal Equipment. The equipment, such as computers and printers, that provides

 

or creates data.

DTR

Data Terminal Ready. An EIA-lead standard for V.24 circuit CT 108; an input signal

 

(DTE-to-DCE).

EIA

Electronic Industries Association. This organization provides standards for the data

 

communications industry to ensure uniformity of interface between DTEs and DCEs.

EIA-232

The EIA's standards defining the 25-pin interface between the DTE and DCE.

Enterprise MIB

MIB objects unique to Paradyne devices.

excessive BPV

An excessive bipolar violation condition results when at least one invalid bipolar violation

 

has occurred every 20 milliseconds for 2 seconds.

factory defaults

A predetermined set of configuration options for general operation.

FCC

Federal Communications Commission. Board of Commissioners that regulates all U.S.

 

interstate, intrastate, and foreign electrical communication systems that originate from the

 

United States.

frame relay

A switching interface that is designed to get frames from one part of the network to another

 

as quickly as possible.

full-duplex

The capability to transmit in two directions simultaneously.

HDLC

High-Level Data Link Control. A communications protocol defined by the International

 

Standards Organization (ISO).

ICMP

Internet Control Management Protocol. Internet protocol that allows for the generation of

 

error messages, tests packets, and information messages related to IP.

IMC

In-band Management Channel. A proprietary TDM channel used for IP connectivity.

interface

A shared boundary between functional units.

IP

Internet Protocol. The TCP/IP standard protocol that defines the unit of information passed

 

across an Internet and provides the basis for packet delivery service. IP includes the ICMP

 

control and error message protocol as an integral part. The entire protocol suite is often

 

referred to as TCP/IP because TCP and IP are the two most fundamental protocols.

IP address

The IP address has a host component and a network component. The address is assigned

 

to hosts or workstations with direct Internet access to uniquely identify entities on the

 

Internet.

ITU

International Telecommunication Union, formerly known as CCITT . An advisory committee

 

established by the United Nations to recommend communications standards and policies.

LADS

Local Area Data Set is used to provide a point-to-point link between two devices (also

 

called LDM ± limited distance modem).

GL-2

November 1997

7610-A2-GB20-10

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Paradyne SNMP DSU, 7610 manual EIA-232, Enterprise MIB, Excessive BPV, Factory defaults, Frame relay, Full-duplex, Interface