ZyXEL Communications Prestige 941 User manual

Prestige 941
Cable Modem
User's Guide
Version 2.37
Jan. 2000

Prestige 941 Cable Modem
ii
Prestige 941
Cable Modem
Copyright
Copyright © 2000 by ZyXEL Communications Corporation.
The contents of this publication may not be reproduced in any part or as a whole, transcribed, stored in a retrieval
system, translated into any language, or transmitted in any form or by any means, electronic, mechanical, magnetic,
optical, chemical, photocopying, manual, or otherwise, without the prior written permission of ZyXEL
Communications Corporation.
Published by ZyXEL Communications Corporation. All rights reserved.
Disclaimer
ZyXEL does not assume any liability arising out of the application or use of any products, or software described herein.
Neither does it convey any license under its patent rights nor the patent rights of others. ZyXEL further reserves the
right to make changes in any products described herein without notice. This publication is subject to change without
notice.
Trademarks
Trademarks mentioned in this publication are used for identification purposes only and may be properties of their
respective owners.

Prestige 941 Cable Modem
iii
ZyXEL Limited Warranty
ZyXEL warrants to the original end user (purchaser) that this product is free from any defects in materials or
workmanship for a period of up to two years from the date of purchase. During the warranty period, and upon proof of
purchase, should the product have indications of failure due to faulty workmanship and/or materials, ZyXEL will, at its
discretion, repair or replace the defective products or components without charge for either parts or labor, and to
whatever extent it shall deem necessary to restore the product or components to proper operating condition. Any
replacement will consist of a new or re-manufactured functionally equivalent product of equal value, and will be solely
at the discretion of ZyXEL. This warranty shall not apply if the product is modified, misused, tampered with, damaged
by an act of God, or subjected to abnormal working conditions.
Note
Repair or replacement, as provided under this warranty, is the exclusive remedy of the purchaser. This warranty is in
lieu of all other warranties, express or implied, including any implied warranty of merchantability or fitness for a
particular use or purpose. ZyXEL shall in no event be held liable for indirect or consequential damages of any kind of
character to the purchaser.
To obtain the services of this warranty, contact ZyXEL's Service Center; refer to the separate Warranty Card for your
Return Material Authorization number (RMA). Products must be returned Postage Prepaid. It is recommended that the
unit be insured when shipped. Any returned products without proof of purchase or those with an out-dated warranty will
be repaired or replaced (at the discretion of ZyXEL) and the customer will be billed for parts and labor. All repaired or
replaced products will be shipped by ZyXEL to the corresponding return address, Postage Paid (USA and territories
only). If the customer desires some other return destination beyond the U.S. borders, the customer shall bear the cost of
the return shipment. This warranty gives you specific legal rights, and you may also have other rights that vary from
state to state

Prestige 941 Cable Modem
Table of Contents v
Customer Support
If you have questions about your ZyXEL product or desire assistance, contact ZyXEL
Communications Corporation offices worldwide, in one of the following ways:
Method
Location
E-MAIL –Support/ Sales Telephone/Fax Web Site/ FTP Site Regular Mail
[email protected]
[email protected] [phone] www.zyxel.com www.europe.zyxel.com
Worldwide
[email protected] [phone] ftp.europe.zyxel.com
ZyXEL
Communications
Corp., 6 Innovation
RoadII,Science-
Based Industrial Park,
HsinChu, Taiwan 300,
R.O.C.
su[email protected] [phone]
800-255-4101 www.zyxel.comNorth America [email protected] [phone] ftp.zyxel.com
ZyXEL
Communications Inc.,
1650 Miraloma
Avenue, Placentia,
CA 92870, U.S.A.
[email protected] [phone] www.zyxel.dkScandinavia
(Denmark) [email protected] [phone] ftp.zyxel.dk
ZyXEL
Communications A/S,
Columbusvej 5, 2860
Soeborg, Denmark.
[email protected] [phone]www.zyxel.atAustria [email protected] [phone] ftp.zyxel.at
ZyXEL
Communications
Services GmbH.
Thaliastrasse
125a/2/2/4
A-1160 Vienna,
Austria
[email protected]e49-2405-6909-0www.zyxel.deGermany [email protected] 49-2405-6909-99
ZyXEL Deutschland
GmbH.
Adenauerstr. 20/A4
D-52146 Wuerselen
Germany

Prestige 941 Cable Modem
Table of Contents vii
Table of Contents
1.1 Prestige 941 Cable Modem....................................................................................1-1
1.2 Overview of Cable Data System Operation .............................................................1-1
1.3 Key Features of Prestige 941 Cable Modem ...........................................................1-2
1.4 Internet Access Applications for Prestige 941 ..........................................................1-3
1.5 Product Specifications ...........................................................................................1-5
2.1 Front Panel LEDs and Back Panel Ports.................................................................2-1
2.1.1 Front Panel LEDs .................................................................................................................................2-1
2.2 Prestige 941 Rear Panel and Connections ..............................................................2-2
2.3 Initializing the Cable Modem..................................................................................2-2
2.4 Configuration Overview .........................................................................................2-4
2.5 Additional Installation Requirements.......................................................................2-4
2.6 Stacking ZyXEL Cable Modems .............................................................................2-4
2.7 Power On Your Prestige.........................................................................................2-5
3.1 Problems Starting Up the Prestige..........................................................................2-6
3.2 Problems with the Coaxial Cable............................................................................2-6
3.3 Problems with the LAN Interface ............................................................................2-7

Prestige 941 Cable Modem
viii Preface
Preface
Congratulations on your purchase of the Prestige 941 Cable Modem.
This preface introduces you to your cable modem and discusses the user’s guide and conventions. It also
provides information on other related documentation.
About Your Cable Modem
The Prestige 941 cable modem connects your 10/100Mbps LAN to the Internet through your television
cable. Your P941 is primarily a bridge device. Your Prestige 941 is easy to install. Once you have installed
it, your cable operator will configure it. You have to just plug and play.
About This User's Guide
This manual is designed to give you an overview of your Prestige 941 Cable Modem. You can just connect
your cable modem using the instructions given in chapter two, then plug, and play. For details about P941
with routing capabilities, please refer to P941 Routing Cable Modem User's Guide.
Syntax Conventions
•For brevity’s sake, we will use “e.g.” as a shorthand for “for instance” and “i.e.” for “that is” or “in
other words” throughout this manual.
•The Prestige 941 will also be referred to as the Prestige or the P941 in this manual.
Related Documentation
ØSupporting Disk
More detailed information about the Prestige and examples of its use can be found in the Supporting Disk.
ØPacking List Card
You should have a Packing List Card that lists all items that should have come with your Prestige.
ØZyXEL Web Page and FTP Server Site
You can access release notes for firmware upgrades and other information at ZyXEL web pages and FTP
server sites. Refer to the Customer Support page in this User’s Guide for more information.

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Preface ix