Prestige 941 Cable Modem User's Guide Version 2.37 Jan.
Prestige 941 Cable Modem 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.
Prestige 941 Cable Modem 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.
Prestige 941 Cable Modem 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 E- MAIL – Support/ Sales Telephone/Fax Web Site/ FTP Site Regular Mail support@zyxel.com.tw support@europe.zyxel.com +886-3-578-3942 www.zyxel.com www.europe.zyxel.com sales@zyxel.com.tw +886-3-578-2439 ftp.europe.zyxel.com support@zyxel.com www.zyxel.com sales@zyxel.
Prestige 941 Cable Modem 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.
Prestige 941 Cable Modem 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.
Prestige 941 Cable Modem Preface ix
Prestige 941 Cable Modem Chapter 1 Getting to Know Your Cable Modem This chapter provides overview of your Prestige 941 Cable Modem, its key features, applications and product specifications. 1.1 Prestige 941 Cable Modem The Prestige 941 is a high bandwidth Internet access cable modem that connects your LAN to the Internet using the hybrid fiber coaxial (HFC) cable; the same cable that brings television into a cable television (CATV) subscriber’s home.
Prestige 941 Cable Modem The personal computer(s) connected to the cable modem must be configured for Internet Protocol (IP). In addition, your cable service provider must have a correctly configured DHCP server and EIA (Electronic Industries Administration) downstream channel. Using DHCP, headend assigns an IP address to your cable modem each time you connect to the network. The IP address identifies the computer on the network and enables the headend to route data to and from your computer.
Prestige 941 Cable Modem 1.4 Internet Access Applications for Prestige 941 Prestige 941 Cable Modem is basicly a bridge device that will forward user's traffic between LAN and CMTS. According to DOCSIS specification, the cable modem can be configured to serve specific CPEs (Customer Premise Equipments) by provisioning their MAC addresses. Only the traffic to/from these CPE will be forwarded by Prestige 941. The others will be filtered.
Prestige 941 Cable Modem Figure 1-2 Cable Modem Application and Network Architecture For Internet Access applications, the highlights of the Prestige 941’s distinguished features are described as follows : High Speed Access to the Internet Downstream(receive) connection speeds of up to 43 Mbps, and upstream (send) connection speeds of up to 2 Mbps (Note) Multicast messages Multiple users can receive important information at the same time User Data Privacy Upstream and downstream data is encrypted to provi
Prestige 941 Cable Modem Software and configuration information is downloadable from cable headend to the cable modem for future software upgrade. Your cable operator will help you in future software upgrade. Note: DOCSIS cable Systems are capable of providing access speed up to 43 Mbps and 10 Mbps for downstream and upstream respectively. The bandwidth, however, is shared by several subscribers because there are very few computers today that can connect to a network at such high speeds.
Prestige 941 Cable Modem Transmit Output Power +8 ~ +58 dBmv (QPSK) +8 ~ +55 dBmv (16 QAM) Data Rates 320 kbps ~ 5.12 Mbps (QPSK) 640 kbps ~ 10.24 Mbps (16 QAM) FEC Reed Solomon Encoder Encryption 56-bit DES Numbers of LAN Users (with external hub) Power Requirements Operating Requirements up to 16 9VDC @ 1.2 Amps Max. Temperature : 0ºC to +40ºC (Note) Humidity : 5 to 90 % (non-condensing) Dimensions 23cm x 16cm x 3.
Prestige 941 Cable Modem Chapter 2 Hardware Installation & Initial Setup This chapter shows the procedures for installing and operating the Prestige 941 cable modem. 2.1 Front Panel LEDs and Back Panel Ports 2.1.1 Front Panel LEDs The LEDs on the front panel indicate the operational status of the Prestige 941.
Prestige 941 Cable Modem LAN 10M LAN10M Orange On: Ethernet link OK Flashing: Sending and Receiving Off: Ethernet not ready LAN 100M LAN100M Green On: Ethernet link OK Flashing: Sending and Receiving Off: Ethernet not ready DATA DATA Green Flashing: Upstream or Downstream Channel is transmitting data. Off: Connection is idle. CABLE 2.
Prestige 941 Cable Modem Locate the coaxial cable at the installation site and move the cable end, or install a two-way splitter as necessary, to provide a connection near the Prestige 941 cable modem router location. Step 2. Connecting the Prestige to the Cable System Connect the Prestige 941 to cable port on the cable modem using F-type connector. (If the quality or general condition of the coaxial cable at the installation site is in question, we recommended that you replace the coaxial cable).
Prestige 941 Cable Modem 2.4 Configuration Overview The Prestige 941 cable modem is configured automatically using a configuration file generated by the cable modem operator and delivered by the cable headend. The headend provides a path to the Prestige 941 cable modem for both the DHCP server and PC address assignment. The personal computer(s) connected the cable modem must be configured for Internet Protocol (IP).
Prestige 941 Cable Modem 2.7 Power On Your Prestige At this point, you should have connected the console port, the LAN port, the cable port and the power port to the appropriate devices or lines. Plug the power adapter into a wall outlet. When connected and powered on, the cable modem executes an automatic installation procedure: 1. Scans and locks on to the service provider’s downstream frequency. 2.
Prestige 941 Cable Modem Chapter 3 Troubleshooting This chapter covers the potential problems you may run into and the possible remedies. After each problem description, some instructions are provided to help you to diagnose and to solve the problem. 3.1 Problems Starting Up the Prestige Table 3-1 Troubleshooting the Start-Up of your Prestige 941 Problem Corrective Action None of the LEDs are on when you power on the Prestige Check the connection between the AC adapter and the Prestige. 3.
Prestige 941 Cable Modem 3.3 Problems with the LAN Interface Table 3-4 Troubleshooting the LAN Interface Problem Corrective Action Both 10M and 100M LAN LED are off Check the 10M/100M LEDs on the front panel. One of these LEDs should be on. If they are both off, check the cables between your Prestige and Hub or the CPE. For CPE connection, a straight RJ45 Ethernet cable should be used. For Hub connection, a cross-over cable should be used.
Prestige 941 Cable Modem Appendix A Acronyms and Abbreviations CATV Cable TV CM Cable Modem CMTS Cable Modem Termination System CPE Customer Premises Equipment DB Decibel DCE Data Communications Equipment DES Data Encryption Standard DHCP Dynamic Host Configuration Protocol DOCSIS Data Over Cable Service Interface Specification DNS Domain Name System DTE Data Terminal Equipment FEC Forward Error Correction FTP File Transfer Protocol HFC Hybrid Fiber/Coaxial HTTP Hyper Text Tran
Prestige 941 Cable Modem B LAN Local Area Network MAC Media Access Control Mbps Megabits per second MCNS Multimedia Cable Network System Partners Ltd.
