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MEGABIT MODEM
Megabit Modem
Model 500L
User Manual
PRELIMINARY
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PRELIMINARY PairGain Technologies cannot assume responsibility for any consequences resulting from the use of this product or documentation. The information contained herein is subject to change. PairGain reserves the right to change features and specifications without notice. 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 PairGa
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PRELIMINARY About This User Manual ABOUT THIS USER MANUAL ® 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 configuring sessions between the modem and a service provider monitoring and
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Suggestions and Corrections to this Manual PRELIMINARY SUGGESTIONS AND CORRECTIONS TO THIS MANUAL 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: technical_publications@pairgain.com 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 war
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PRELIMINARY Table of Contents TABLE OF CONTENTS Chapter 1: About The Product _______________________________________________1 Features................................................................................................................................2 Applications.........................................................................................................................3 Connection to a Remote Office.......................................................................
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Table of Contents PRELIMINARY Saving the Configuration...................................................................................................21 Saving the Configuration to NVRAM.................................................................22 Resetting the Modem to Factory Defaults...........................................................23 Resetting the Modem...........................................................................................25 Chapter 5: Configuring Syste
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PRELIMINARY Table of Contents Chapter 9: Technical Reference _____________________________________________55 Transmission on the Wide Area Network .........................................................................55 ADSL ..................................................................................................................55 ATM....................................................................................................................56 PPP ............................
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Table of Contents PRELIMINARY Appendix B: Technical Assistance and Warranty _______________________________69 Technical Support..............................................................................................................69 World-Wide Web...............................................................................................................69 Limited Warranty...............................................................................................................70 Ad
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ABOUT THE PRODUCT 1 You have purchased the PairGain Megabit Modem 500L that connects your Ethernet LAN to service providers for instant and high-speed access to the Internet or to other types of Wide Area Network (WAN) applications. The modem provides this service over a single-pair telephone line with downstream ADSL transmission up to 1.5 Mbps. The upstream ADSL transmission is up to 512 kbps. You can also receive telephone service over the same single-pair line as your data. The Mega
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Features PRELIMINARY FEATURES The Megabit Modem 500L provides: rate-adaptable ADSL 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-Point Protocol (PPP) encapsulation method Password and Challenge-Handshake Authentication Protocols (PAP/CHAP) for authentication of PPP sessions Network Address Translation (NAT) protocol to map the user to the PPP session Dyna
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PRELIMINARY Chapter 1: About The Product APPLICATIONS The Megabit Modem 500L provides a practical solution for many networking applications. The following illustrations show some of the many possible solutions when using the Megabit Modem 500L. Connection to a Remote Office You can work at home or at a remote office and have a connection to a corporate office network. Megabit Modem 500L Installation Manual 3 PRELIMINARY
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Applications PRELIMINARY Internet Access for Users at Home You can connect an at home user to the Internet. 4 Megabit Modem 500L Installation Manual PRELIMINARY
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WHAT YOU NEED TO START 2 This chapter identifies the preparations and prerequisites for installing the Megabit Modem 500L. To install the modem, verify that: the contents of the package are as described on this page your system meets requirements for connecting to and configuring the modem (see “Requirements For Your System” on page 6) your facility meets installation site requirements (see “Requirements For The Installation Site” on page 6) the configuration parameters are available
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Requirements For Your System PRELIMINARY REQUIREMENTS FOR YOUR SYSTEM You need the following hardware and software to complete the installation and configuration of the Megabit Modem 500L: PC with an Ethernet Network Interface Card (NIC) TCP/IP network protocol stack (see your documentation for your operating system) ® ® Web browser installed such as Netscape or Internet Explorer version 4.0 or higher Ethernet hub (optional) REQUIREMENTS FOR THE INSTALLATION SITE To install the Megabit
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MEGABIT MODEM 500L MEGABIT MODEM 500L MEGABITMODEM 500L PWR LINK LAN TX RX SYNC TX ADSL RX MAR OH PWR LINK LAN TX RX SYNC TX ADSL RX MAR OH PWR LINK LAN TX RX SYNC TX ADSL RX MAR OH PRELIMINARY Chapter 2: What You Need To Start Flat-Surface Mount Do not stack the modems when installing on a flat surface. The modems do not dissipate heat properly when stacked. Place the modems on a flat surface, such as on a table or in a rack. Minimum 1-inch clearance Minimum 1-inch clearance Megabit Modem 500
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Requirements For The Installation Site PRELIMINARY Wall Mount Ensure the minimum dimensions (shown in the illustration) for spacing between modems are met to allow for heat dissipation, viewing of front panel LEDs, and cabling. Mount the modems on a wall using the hardware included in the installation kit. 3" to 4" 4.85" 12" Min. 3" 4.85" 8 Megabit Modem 500L Installation Manual MEGABITMODEM 500L MEGABIT MODEM 500L LAN ADSL LAN ADSL PWR LINK TX RX SYNC TX RX MAR OH PWR LINK TX RX SYNC TX RX MA
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PRELIMINARY Chapter 2: What You Need To Start Phone Service If you get phone service, all you need is an RJ-11 phone jack to connect your phone. This lite-rate modem provides splitterless capability, which allows reception of phone service without special splitters or filters; simply connect your phone. WHAT YOU NEED FROM YOUR SERVICE PROVIDER Use the worksheets, provided in Appendix C on page 73, to record your configuration information. When you begin to configure the modem in Chapter 4 on
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Choose a Power Cable PRELIMINARY 10 Megabit Modem 500L Installation Manual PRELIMINARY
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INSTALLING THE MODEM 3 The Megabit Modem 500L is easy to install by: attaching adhesive-backed feet setting the MDI/MDI-X switch connecting a cable from the modem to a PC or an Ethernet hub for LAN service connecting a phone cord from the modem to a wall phone jack for DMT ADSL Internet or other WAN application service connecting a power cable to a local power outlet Perform the installation on the following pages (see “Location for Modem Installation” on page 6 to determine where to
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Attaching the Feet PRELIMINARY ATTACHING THE FEET Attach each of the four adhesive-backed rubber feet to a footprint recess on the bottom of the modem. Rubber feet Recess 12 Megabit Modem 500L Installation Manual PRELIMINARY MEGABIT LAN ADSL MODEM 500L PWR LINK TX RX SYNC TX RX MAR OH
