Preface, Table of Contents | Nortel Networks 56K specification

Preface

This manual provides information related to the installation, operation, and application of this device. The individual reading this manual is presumed to have a basic understanding of telecommunications terminology and concepts.

If you find the product to be broken or malfunctioning, please contact technical support for immediate service by email at technicalsupport@netcomm.com.au

For product update, new product release, manual revision, or software upgrades, please visit our website at www.Netcomm.com.au

Important Safety Instructions

With reference to unpacking, installation, use and maintenance of your electronic device, the following basic guidelines are recommended:

•Do not use or install this product near water, to avoid fire or shock hazard. For example, near a bathtub, kitchen sink or laundry tub, or near a swimming pool. Also, do not expose the equipment to rain or damp areas (e.g. a wet basement).

•Do not connect the power supply cord on elevated surfaces. Allow it to lie freely. There should be no obstructions in its path and no heavy items should be placed on the cord. In addition, do not walk on, step on or mistreat the cord.

•Use only the power cord and adapter that are shipped with this device.

•To safeguard the equipment against overheating, make sure that all openings in the unit that offer exposure to air are not blocked.

•Avoid using a telephone (other than a cordless type) during an electrical storm. There may be a remote risk of electric shock from lightening. Also, do not use the telephone to report a gas leak in the vicinity of the leak.

•Never install telephone wiring during stormy weather conditions.

WARNING

•Disconnect the power line from the device before servicing.

Copyright©2009 NetComm Limited. All rights reserved. The information contained herein is proprietary to NetComm Limited. No part of this document may be translated, transcribed, reproduced, in any form, or by any means without prior written consent of NetComm Limited

NOTE:This document is subject to change without notice.

Save Our Environment

When this equipment has reached the end of its useful life, it must be taken to a recycling centre and processed separate from domestic waste.

The cardboard box, the plastic contained in the packaging, and the parts that make up this router can be recycled in accordance with
regionally established regulations. Never dispose of this electronic equipment along with your household waste. You may be subject to
penalties or sanctions under the law. Instead, ask for disposal instructions from your municipal government.
Please be responsible and protect our environment.
Table of Contents
INTRODUCTION	4
SYSTEM REQUIREMENTS	5
PACKAGE INCLUDES	5
HARDWARE SETUP	6
COMMANDS	9
TROUBLESHOOTING	14
APPENDIX A:	16
APPENDIX B:	17

NetComm Roadster Series 56K USB Modem	�m�5�60 �7
	www.netcomm.com.au

56K specifications

Nortel Networks, a leading telecommunications equipment manufacturer, played a crucial role in the development of modem technology during the late 1990s and early 2000s. Among its most notable contributions was the Nortel Networks 56K modem. Introduced at a time when dial-up internet access was the norm, the 56K modem represented a significant leap forward in data transmission speeds for both residential users and businesses alike.

One of the main features of the Nortel Networks 56K modem was its ability to achieve faster data rates compared to its predecessors. While earlier modems operated at speeds of 28.8 Kbps or 33.6 Kbps, the Nortel 56K modem could theoretically reach connection speeds of 56 Kbps under optimal conditions. This enhancement was made possible through the implementation of newer modulation techniques, such as Pulse Amplitude Modulation (PAM), which allowed for more efficient data transmission over standard telephone lines.

The 56K modem was designed to work effectively over existing analog phone lines, which was a crucial characteristic during that time. It could connect directly to the existing Public Switched Telephone Network (PSTN), making it accessible for millions of users without the need for any special infrastructure upgrades. This meant that both home users and businesses could benefit from the increased speed without significant investment.

Another notable feature was the robustness of the Nortel 56K modem's error correction capabilities. Technologies such as V.42 and V.42bis compression were integrated to enhance data integrity. These error-correcting protocols stitched together fragmented data packets, thereby ensuring reliable and stable connections, even over less-than-perfect phone lines. This reliability was vital for users who relied on modems for email, file transfers, and browsing the web.

In terms of compatibility, the Nortel Networks 56K modem was designed to work seamlessly with various operating systems, ensuring that users could connect to the internet regardless of their hardware setup. The plug-and-play capability made installation straightforward, allowing users to start browsing the web quickly.

While the Nortel Networks 56K modem was eventually eclipsed by DSL and broadband technologies that offered even higher speeds, it played an instrumental role in transitioning users from slower modems to a more connected world. The impact of Nortel's 56K modem can still be felt today, as it laid the groundwork for future innovations in digital communications and paved the way for the fast-paced internet landscape we experience now.