ADC 500L User Manual
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MEGABIT MODEM

Model 500L

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User Manual

 

 

 

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PairGain Technologies cannot assume responsibility for any consequences

 

 

 

resulting from the use of this product or documentation. The information

 

 

 

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contained herein is subject to change.

 

 

 

 

 

PairGain reserves the right to change features and specifications

 

 

 

without notice.

 

 

 

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July 1999 (Preliminary)

 

 

 

© Copyright 1999 PairGain Technologies, Inc.

PairGain and Megabit Modem are registered trademarks, and AccessGain, PriorityVoice, InstaConnect, EasySession, and DSLview are trademarks of PairGain Technologies, Inc. AVIDIA is a registered trademark of PairGain Wallingford Design Center, Inc.

Information contained in this document shall not be modified, used, copied, reproduced or disclosed in whole or in part without the written consent of PairGain Technologies, Inc.

Other product names mentioned in this practice are used for identification purposes only and may be trademarks or registered trademarks of their respective companies.

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Megabit Modem 500L Installation Manual

PRELIMINARY About This User Manual

ABOUTTHISUSERMANUAL

Use this manual to install and configure the PairGain® Megabit Modem 500L™. The manual

provides instruction on:

 

information you will need to configure the modem

 

unpacking and inspecting the modem for installation

 

installing the modem

 

setting up parameters for your applications that will be used to configure the modem

configuring system parameters

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configuring sessions between the modem and a service provider

monitoring and troubleshooting the modem

Chapter 9 provides a reference for technology implemented Ain the Megabit Modem 500L. The chapter covers information about ATM over ADSL transmission, PPP over ATM operating mode, and SNMP management.

IP addresses used in this manual are for exampleINonly. You will acquire your own addresses from the service provider and your information services coordinator to configure the Megabit Modem 500L. However, you must use the IP address specified in“Accessing Megabit Modem

500L Web Pages” on page 20 to access the Megabit Modem 500L from a Web browser.

DOCUMENTCONVENTIONSM

 

 

 

 

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Two types of messages, identified by icons, appear in the text.

 

 

 

 

Notes contain information about special circumstances.

 

 

 

 

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Cautions indicate the possibility of equipment damage or the possibility of

personal injury.

 

Megabit Modem 500L Installation Manual

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technical_publications@pairgain.com

Suggestions and Corrections to this Manual PRELIMINARY

SUGGESTIONS ANDCORRECTIONS TO THISMANUAL

Your comments help us prepare better user documentation. If you have comments about this

manual, send an email containing the comment(s), page reference, and any other pertinent

information to:

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In the email subject area, provide the product name and the name and date of the document about which you are commenting.

If you have questions about the product or warranty, see Appendix B on page 69 for information about whom to contact.

PRODUCTCERTIFICATIONS

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FCC

This equipment has been tested and found to comply with the limits for a Class A digital device,

against harmful interference when the equipment is operated in a commercial environment. This

pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection

 

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equipment generates, uses, and can radiate radio frequency energy and, if not installed and used

in accordance with this instruction manual, may cause harmful interference to radio

communication.

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However, there is no guarantee that interference will not occur in a particular installation. If this

equipment does cause harmful interference to radio or television reception, which can be

determined by turning the equipment off and on, the user is encouraged to try to correct the

interference by one or more of the following measures:

Reorient or relocate the receiving antenna.

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Increase the separation between the equipment and receiver.

Connect the equipment into an outlet on a circuit different from that to which the receiver

 

is connected.

 

Consult the dealer or an experienced radio/TV technician for help.

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This product meets all safety requirements per UL-1950standard.

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Megabit Modem 500L Installation Manual

PRELIMINARY

Table of Contents

 

 

TABLE OFCONTENTS

Chapter 1: About The Product _______________________________________________ 1

 

 

 

 

 

 

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Features................................................................................................................................

 

 

 

 

 

 

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Applications.........................................................................................................................

 

 

 

 

 

 

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Connection to a Remote Office.............................................................................

 

 

 

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Internet Access for Users at Home........................................................................

 

 

 

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Chapter 2: What You Need To Start __________________________________________ 5

 

 

 

 

 

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Verify Package Contents .....................................................................................................

 

 

 

 

 

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Requirements For Your System

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Requirements For The Installation Site ...............................................................................

 

 

 

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Location for Modem Installation ..........................................................................

 

 

 

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Phone Service........................................................................................................

 

 

 

 

 

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What You Need from Your Service .....................................................................Provider

 

 

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Choose a Power Cable.........................................................................................................

 

 

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Chapter 3: Installing the Modem ____________________________________________ 11

 

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Attaching the Feet..............................................................................................................

 

 

 

 

 

 

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Setting the MDI/MDI-XSwitch ........................................................................................

 

 

 

 

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Installing Cabling ..............................................................................................................

 

 

 

 

 

 

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Setting Up ADSL Service .................................................................................................

 

 

 

 

 

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Checking LED Indications ................................................................................................

 

 

 

 

 

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Connecting Phone Service.................................................................................................

 

 

 

 

 

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Chapter 4: Setting Up For Configuration _____________________________________ 17

Setting Up the PC to Request an .....................................................................IP Address

 

 

 

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Configuring a Web Browser..............................................................................................

 

 

 

 

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Accessing Megabit Modem 500L ...................................................................Web Pages

 

 

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Table of Contents

 

 

 

 

 

PRELIMINARY

Saving the Configuration ...................................................................................................

 

 

 

 

 

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Saving the Configuration to NVRAM.................................................................

 

 

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Resetting the Modem to Factory Defaults...........................................................

 

 

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Resetting the Modem...........................................................................................

 

 

 

 

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Chapter 5: Configuring System Settings ______________________________________27

Defining TFTP Parameters ................................................................................................

 

 

 

 

 

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Defining SNMP Parameters...............................................................................................

 

 

 

 

 

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Setting the Time and Date .................................................................................................

 

 

 

 

 

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Chapter 6: Configuring Sessions _____________________________________________33

Selecting a Configuration Model .......................................................................................

 

 

 

 

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Configuring PPP over ATM Sessions ...............................................................................

 

 

 

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Configuring the WAN .........................................................................................

 

 

 

 

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Configuring the LAN ..........................................................................................

 

 

 

 

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Saving the Configuration.....................................................................................

 

 

 

 

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Activating and De-ActivatingSessions .............................................................................

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Activating Sessions .............................................................................................

 

 

 

 

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De-Activating Sessions .......................................................................................

 

 

 

 

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Chapter 7: Viewing Statistics________________________________________________45

Viewing ADSL Status .......................................................................................................

 

 

 

 

 

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Viewing Network Statistics ...............................................................................................

 

 

 

 

 

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LAN Statistics .....................................................................................................

 

 

 

 

 

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WAN Statistics ....................................................................................................

 

 

 

 

 

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Chapter 8: Maintenance and Troubleshooting _________________________________51

Maintenance.......................................................................................................................

 

 

 

 

 

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Updating Software...............................................................................................

 

 

 

 

 

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Troubleshooting .................................................................................................................

 

 

 

 

 

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Megabit Modem 500L Installation Manual

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Table of Contents

Chapter 9: Technical Reference _____________________________________________ 55

Transmission on the Wide Area Network

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ADSL ..................................................................................................................

 

 

 

 

 

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ATM ....................................................................................................................

 

 

 

 

 

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PPP ....................................................................................................................................

 

 

 

 

 

 

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PAP/CHAP Authentication Security...................................................................

 

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NAT.....................................................................................................................

 

 

 

 

 

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Management Protocols ......................................................................................................

 

 

 

 

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SNMP ..................................................................................................................

 

 

 

 

 

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Megabit Modem 500L SNMP Agent..................................................................

 

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MIB and Trap Support

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DNS Resolution.................................................................................................................

 

 

 

 

 

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TFTP Server ......................................................................................................................

 

 

 

 

 

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Appendix A: Specifications and Data _________________________________________ 61

WAN Interface Specifications...........................................................................................

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Encapsulation ....................................................................................................................

 

 

 

 

 

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LAN Interface....................................................................................................................

 

 

 

 

 

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Physical Specifications ......................................................................................................

 

 

 

 

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Power Supply.....................................................................................................................

 

 

 

 

 

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Environmental ...................................................................................................................

 

 

 

 

 

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Compliance ........................................................................................................................

 

 

 

 

 

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RFCs ..................................................................................................................................

 

 

 

 

 

 

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MIBs ..................................................................................................................................

 

 

 

 

 

 

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Rate vs. Reach ...................................................................................................................

 

 

 

 

 

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Hardware ...........................................................................................................................

 

 

 

 

 

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Installation Kit.....................................................................................................

 

 

 

 

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Connector Pinouts ...............................................................................................

 

 

 

 

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Megabit Modem 500L Installation Manual

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Table of Contents

 

 

 

PRELIMINARY

Appendix B: Technical Assistance and Warranty _______________________________69

Technical Support ..............................................................................................................

 

 

 

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World-Wide Web...............................................................................................................

 

 

 

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Limited Warranty...............................................................................................................

 

 

 

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Advance Replacement .......................................................................................................

 

 

 

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Billing ................................................................................................................................

 

 

 

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Returning a Product ...........................................................................................................

 

 

 

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Appendix C: Configuration Worksheets _______________________________________73

 

 

 

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Configuration Information .................................................................................................

 

 

 

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Appendix D: Glossary ______________________________________________________RY75

 

 

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Appendix E: Index _________________________________________________________81

 

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Megabit Modem 500L Installation Manual

 

 

 

 

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ABOUTTHEPRODUCT

 

You have purchased the PairGain Megabit Modem 500L

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that connects your Ethernet LAN to service providers for

 

 

 

instant and high-speedaccess to the Internet or to other

 

 

types of Wide Area Network (WAN) applications. The

 

 

modem provides this service over a single-pairtelephone

 

 

line with downstream ADSL transmission up

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to 1.5 Mbps. The upstream ADSL transmission is up to

 

 

512 kbps. You can also receive telephone service over the

 

 

same single-pairline as your data.

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The Megabit Modem 500L uses ATM over DMT ADSL technology to provide this high-speedtransmission between the modem and the service provider. Asynchronous Transfer Mode (ATM) provides transmission offixed-sizecells over preestablished connections. The

Asymmetric Digital Subscriber Line (ADSL) provides rate-adaptivetransmission which means

 

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the service provider can deliver the best possible transmission rate to you based on distance and

line conditions.

 

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The Megabit Modem 500L is easy to install and configure. To install the modem, you:

connect a telephone cable from the modem to a wall phone jack for ADSL service

connect a cable from the modem to a PC or an Ethernet hub for LAN service

connect a power cable to a local power source

PRTo configure the modem, launch a Web browser on your PC and load the Megabit Modem Configuration and Management Tool Web pages that guide you through configuration. Use the Web page called EasySession™ to configure up to 3 Internet or other WAN sessions with service providers (you can activate only one session at a time). You can also configure other system parameters and monitor ADSL, LAN, and other networking functions using the Web pages.

DSLview™ LEDs on the modem front panel provide continual status at-a-glancefor network and modem connections.

Megabit Modem 500L Installation Manual

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Features

PRELIMINARY

 

 

FEATURES

The Megabit Modem 500L provides:

rate-adaptableADSL transmission downstream at up to 1.5 Mbps and upstream at up to 512 kbps

Internet or other types of WAN applications and phone service over your existing phone line

Point-to-PointProtocol (PPP) encapsulation method

Password andChallenge-HandshakeAuthentication Protocols (PAP/CHAP) for

 

authentication of PPP sessions

 

 

 

Network Address Translation (NAT) protocol to map the user to the PPP sessionRY

Dynamic Host Configuration Protocol (DHCP) server to provide network configuration

 

information including IP addresses to LAN devices

 

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TFTP to download software

 

 

 

 

 

AccessGain™ software to provide access through an HTTP server to configure, manage,

 

and monitor the modem through a Web-basedinterface

 

 

 

 

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SNMP agent for management through any industry standard SNMP platform

autodetecting10/100BASE-TEthernet port for connection to the LAN

DSLview™ LEDs to provide continual statusat-a-glanceof power, LAN, and

PriorityVoiceEL™ to allow full deployment of the modem without splitters or microfilters

 

ADSL connections

 

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ATM technology with three virtual channels to allow one active Internet or other

 

WAN application session at a time

 

InstaConnect™ to sense phone activity and optimizes performance

PROn a Megabit Modem 500L, you can configure three PPP over ATM sessions. However, you can enable only one of the sessions at a time. You assign the user to the session that is active.

Chapter 9 on page 55 provides more information about the technologies implemented in the Megabit Modem 500L.

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Megabit Modem 500L Installation Manual