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22Preface

Text conventions

This guide uses the following text conventions:

bold Courier text

italic text

plain Courier text

separator ( > )

Indicates command names and options and text that you need to enter.

Example: Use the show health command.

Example: Enter terminal paging {off on}.

Indicates new terms and book titles.

Indicates system output, for example, prompts and system messages.

Example:

Shows menu paths.

Example: Choose Status > Health Check.

Acronyms

This guide uses the following acronyms:

ADSL

asymmetric digital subscriber line

AES

Advanced Encryption Standard

AIS

alarm indication signal

CSU/DSU

channel service unit/digital service unit

DES

Data Encryption Standard

DIMM

dual inline memory module

DTE

data terminal equipment

FRU

field replacement unit

HSSI

High Speed Serial Interface

IP

Internet Protocol

IPsec

IP Security

LAN

local area network

NN46110-311 02.01

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Nortel Networks 2700 manual Text conventions, Acronyms, Preface