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Paradyne ACCULINK 336x E1 User Manual

Page 158

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Glossary

Glossary-5

3360-A2-GB20-20

December 1996

framing

A technique that separates bits into identifiable groups.

Generic-Interface Extension
MIB

An extension to MIB II that defines additional objects for control of generic
interfaces in MIB II.

Get command (SNMP)

Read-only access to SNMP MIB objects.

ground

A physical connection to earth or other reference point.

G.703

The ITU (formerly CCITT) standard for the physical and logical characteristics of
transmissions over digital circuits.

G.703 DTE interface

The G.703 interface on the rear panel of the E1 NTU.

G.704

The ITU (formerly CCITT) standard for the physical and electrical characteristics
of digital interfaces.

HDB3

High Density Bipolar Three Zeros Substitution. A line coding technique used to
accommodate the ones density requirements of E1 lines.

HDLC

High-level Data Link Control. A communications protocol defined by the
International Standards Organization (ISO).

HDSL

High bit-rate Digital Subscriber Line. A technique that allows high bit-rate (E1)
digital signals to be transmitted over subscriber (local loop) lines.

host

A computer system used for application processing on a network.

Hz

Hertz. A unit of frequency that equals one cycle per second.

ICMP

Internet Control Management Protocol. The protocol that enables in-band control,
diagnostic, and error messages to be passed between nodes in an IP internetwork.

ID branch

Identity branch of the E1 NTU menu tree.

interface

A shared boundary between functional units.

Internet

The worldwide interconnected collection of networks that predominantly use the
TCP/IP protocol.

internetwork

An interconnected collection of networks (also called an internet).

IP address

Internet Protocol address. The address used by the SNMP manager to access the
device.

ISO

International Standards Organization.

ITU

International Telecommunications Union. The telecommunications agency of the
United Nations, established to provide standardized communications procedures
and practices.

kbps

Kilobits per second (thousand bits per second).

LAN

Local Area Network. A network that spans a small geographic area (e.g., a
building).

LCD

Liquid Crystal Display. Sealed glass plates containing liquid crystal material. When
voltage is applied, the amount of light passing through the plates is altered so that
messages may be displayed.

LCP

Link Control Protocol.

LED

Light-Emitting Diode. A status indicator that glows in response to the application of
a voltage.

link

A communication path between two network nodes.

link layer protocol

The protocol that regulates the communication between two network nodes.