Perle Systems 833IS User Manual

Page 316

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Glossary

300

Perle 833IS User Guide

Burned In Address

An address installed at the time of manufacture that cannot
be altered.

Callback

A Security feature where the Perle 833IS calls back the
User at a predetermined number defined in the User’s
account. See Fixed and Roaming Callback

CBCP (Callback Control Protocol)

A callback protocol defined by a RFC.

Central Site

A generic term that refers to the Perle 833IS that you are
using.

Channel

Usually what you rent from the Telephone Company. Acts
like an individual telephone line and has a defined
frequency response, gain, and bandwidth. Also known as
circuit, facility, line or link.

Channelized

The division of a channel into smaller channels so that it can
carry more information.

CHAP (Challenge Handshake Authentication
Protocol)

Standard authentication protocol for PPP connections. It
provides a higher level of security than PAP and should be
used whenever possible. see PAP

Community

A community is a group of users having a defined Name
and a defined Access level.

Compression

A method of reducing the representation of information
without reducing the information itself. Saves transmission
time.

Configure

The method of arranging hardware and software to
determine what the system will do.

CSU (Channel Service Unit)

A device that connects a digital telephone line to a
multiplexer, bridge or router.

Database

A collection of information or data organized in an efficient
way to allow quick and easy access to that information.

Default

R e f e r s t o t h e f a c t o r y s e t s o f t w a r e s e t t i n g s a n d
configurations.

Demark Point

The point of demarcation and connection between the
telephone company’s communication hardware and the
hardware of the subscriber. Also know as demarcation
point
.

DHCP (Dynamic Host Configuration Protocol)

A TCP/IP protocol that provides static and dynamic address
allocation and management.

Dial In

The process of attaching to a local network from a remote
client that is using dial-in software.

Dial Mode

Either Tone or Pulse.

Dial Out

The process of attaching to a remote server from a local
device that is using dial-out software.

Digital

On and Off signalling. A form of Binary Code where On is
represented by 1 and Off by 0. All computer communication
is in digital form. Other forms of communication not in digital
must be converted to digital before they are accepted by the
computer. Digital is the opposite of Analog. See Modem

Disabled

No longer functioning.

DTMF Tones (Dual Tone Multi-Frequency)

Touch-tone dialing.

Dynamic

Refers to Hardware or Software that can respond instantly
to changes as they occur.

Emulation

When a piece of hardware or software acts like another in
order to allow a program written for one computer to work
on another computer.

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