Introduction What is ADSL? Using your Modem

Introduction

Using your Modem

Uninstall your Modem

Troubleshooting

Glossary

Technical Support

What is ADSL?

ADSL provides high speed video and data communications to residences andbusinesses over standard telephone lines. ADSL service is provided by connecting apair of very high speed modems to each end of the phone line; one in the central office(ATU-C), and the other at the customer's premises (ATU-R).

Because ADSL is asymmetric, there is a measurable difference in the bit rate betweenthe upstream (how fast you can send data) and downstream (how fast you can receivedata) transmissions.

The 3Com ADSL Modem PCI utilizes full rate G.dmt. The speed and type of DSLyour modem uses, will be determined by the type of service you have ordered fromyour DSL provider.

A typical ADSL installation will require either a POTS (Plain Old Telephone Service)Splitter or Micro filters to be used for your analog voice service. The use of thesedevices enables simultaneous usage of normal telephone service and the modem, withno interruption to the normal telephone service. Your DSL provider will normallysupply you with a Splitter or Micro filters and explain their usage.

Ordering ADSL Service

The 3Com ADSL Modem PCI has a 2-wire twisted pair standard telephone interfacewhich can be used with an ADSL connection from your telephone company or otherservice provider. The service to order depends upon the services that will beconfigured and enabled for the modem.

This modem supports full rate ADSL. This means that a POTS (Plain Old TelephoneService) Splitter or Microfilter must be installed in order to be able to use regularphone service at the same time as you are using your modem.

What's included in the package?

Please check that the following components were included in your package beforeusing the 3Com ADSL Modem PCI.

6 ft. of RJ-11 telephone cable, for the ADSL interface●

3Com ADSL Modem PCI CD-ROM containing

3Com ADSL Modem PCI Drivers❍

3Com ADSL Modem PCI Quick View and Control Center❍

Help Files❍

●

3Com ADSL Modem PCI unit●

If anything is missing, contact 3Com Customer Support.

Introduction

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Introduction

Using your Modem


Troubleshooting

Glossary

Technical Support

Using your ModemThis section contains information on using your 3Com ADSL Modem PCI.

Using Quick View to verify your Connection

Using Control Center

Getting Started

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Introduction

Using your Modem


Troubleshooting

Glossary

Technical Support

Using Quick View to verify yourConnectionThe 3Com ADSL Modem PCI automatically connects to your ADSL provider whenthe computer is started. This is a physical connection between your Modem and theService Provider. To connect to your Internet provider or to your Corporate Networkyou will need to make a connection using either an application supplied by them orMicrosoft Dial-up Networking. In order to make that connection you need to be surethat your modem is talking to the ADSL network. To verify this you can use the QuickView.

Quick View will be launched automatically when you start the computer and will placean icon in the tray on the bottom toolbar of your computers screen. If Quick View hasnot been added to the Startup group, you will need to manually start the applicationfrom the 3Com ADSL Modem PCI group by going to Start->Program Files->3ComADSL Modem PCI.

You will be able to see whether your ADSL connection is up by observing the trayicon. The following two graphics show examples of an established ADSL connectionand a disconnected ADSL connection.

Quick View tray icon showing connection is up

Quick View tray icon showing connection is down

The following graphic shows the large Quick View screen, which will display whenyou double-click the tray icon and give you more information about your connection.

If the connection is down, refer to the troubleshooting section of the on-line help.

Using Quick View to verify your connection

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Introduction

Using your Modem


Troubleshooting

Glossary

Technical Support

Using Control CenterThe Control Center allows you to obtain information on your 3Com ADSL ModemPCI, or to monitor the status of your ADSL connection.

Most of the information presented in the Control Center is for informational purposesand is used primarily in communication with technical support or your serviceprovider. One piece of information you may find useful is the version of software forthe modem you are using. You can reference this number when checking for updates toyour modem software.

For further help with the Control Center or Quick View reference the help in thatapplication.

Using the ADSL Control Center

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Introduction

Using your Modem


Troubleshooting

Glossary

Technical Support

System InformationThis window contains system information for your 3Com ADSL Modem PCI.

The version and revision levels pertain to the level of release for the 3Com ADSLModem PCI hardware and software. These may be important if you need to contact3Com Technical Support.

MAC Address

You must have a new MAC address assigned to be able to use IPX routing.This is a physical hardware address for the PCI card.

System Information

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Introduction

Using your Modem


Troubleshooting

Glossary

Technical Support

Uninstalling the modemIt may be necessary at some point to uninstall the 3Com ADSL Modem PCI. This maybe necessary if an updated version of the 3Com ADSL Modem PCI software has beenobtained, or the 3Com ADSL Modem PCI needs to be removed from the system.

Removing 3Com ADSL Modem PCI application anddrivers

Windows 95/98/Me

Windows 2000

Removing 3Com ADSL Modem PCI Hardware

Uninstalling the 3Com ADSL Modem PCI will erase your configuration, removing allconnection definitions you have established. Please make a note of all importantinformation before uninstalling the 3Com ADSL Modem PCI.

To uninstall the 3Com ADSL modem PCI, follow the instructions below for theversion of Microsoft Windows you are using.

Microsoft Windows 95/98/Me

Step 1. Select Start > Programs > 3Com ADSL Modem PCI > Uninstall

Step 2. You will be asked to confirm that you really do want to completely remove theapplication. Select OK.

Step 3.The Install Wizard will perform the maintenance and will now present a screen

Uninstalling your modem

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that prompts you to launch the Windows Control Panel Applet. Select Finish.

Step 4. You should see a screen like the one below.

Select 3Com ADSL Modem PCI and then press the Add/Remove Button. This willrun the Applications Remove program for the ADSL Modem applications software.

Step 5. Open the Network Applet in the Control Panel.



Step 6. Remove the Modem Software.

After opening the Network Applet you should see a screen like the one below.

Select your modem from the list. Then press the Remove button.

NOTE: Your modem may have one of the following names.3Com ADSL Modem WAN (Win95)3Com ADSL Modem WAN (Win98)3Com ADSL Modem LAN (Win95)3Com ADSL Modem LAN (Win98)

After Windows has removed the Modem software you will be asked to restartWindows to complete. Press OK. After your PC has begun to restart, turn it off beforegetting back into Windows. Remove the Modem card from your machine (continue tothe Removing 3Com ADSL Modem PCI hardware section, if necessary).

Your Modem is now completely removed.

NOTE: If you do not remove the Modem card from the machine, you will be asked byWindows to re-install it. You can select Cancel at this time if you have not removedthe card yet.



Microsoft Windows 2000

Step 1. Select Start > Programs > 3Com ADSL Modem PCI > Uninstall

Step 2. You will see the following screen, informing you that Windows is in theprocess of performing the uninstall.

Step 3.The next screen lets you know that the maintenance is complete.

After Windows has removed the Modem software, remove the Modem card from yourmachine (continue to the Removing 3Com ADSL Modem PCI hardware section, ifnecessary).

Your Modem is now completely removed.

NOTE: If you do not remove the Modem card from the machine, you will be asked byWindows to re-install it. You can select Cancel if you have not removed the card yet.

Removing 3Com ADSL Modem PCI Hardware



After uninstallation of the software and drivers, it may be necessary to remove the3Com ADSL Modem PCI.

If the 3Com ADSL Modem PCI has been uninstalled from a Windows 95,98, ME and2000 system, the system will detect the 3Com ADSL Modem PCI upon restarting thecomputer (if Plug & Play was enabled on the modem).

WARNING: Don't shock yourself. Unplug the computer and anyattached equipment before you uninstall the 3Com ADSL Modem PCI.

1 Turn off and unplug the computer, then remove the computer cover. You don't needto disconnect anything but the power. If you don't know how to remove the cover, seeyour computer user's guide.

CAUTION: Don't damage the 3Com ADSL Modem PCI with staticelectricity. Ground yourself by touching the computer's metal back or side panel.

2 Remove the screw holding the metal bracket for the 3Com ADSL Modem PCI.Ground yourself by touching the metal part of the computer case, and remove the3Com ADSL Modem PCI by grabbing the nonmetallic sides of the card.

3 Replace the bracket that was removed prior to the installation of the 3Com ADSLModem PCI.



Introduction

Using your Modem


Troubleshooting

Glossary

Technical Support

TroubleshootingIf the 3Com ADSL Modem PCI is not operating properly, select from the followinglist of possible problems:

I am having a problem installing my modem

I installed my modem but Windows says the device is not working

I didn't read the manual and I put in the card first, and now I need to install the drivers

Quick View is not running, or Quick View is showing a red light which indicates theDSL connection is not up

I am unable to connect to or display web pages, or they seem to be loading extremelyslow

I can't install the software for my Internet Service Provider (ISP), or their softwarecan't find the modem

Troubleshooting

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Introduction

Using your Modem


Troubleshooting

Glossary

Technical Support

I am having a problem installing mymodemChoose from one of the following possibilities:

I am receiving error messages that the computer is unable to find certain 3Com ADSLModem PCI registry values

I am receiving messages that parts of the 3Com ADSL Modem PCI application(graphics, help, etc.) are missing or unable to be run

If installation problems occur that are not covered here, please contact 3Com TechnicalSupport.

I am receiving error messages that the computer isunable to find certain 3Com ADSL Modem PCI registryvalues

Your registry entries for the 3Com ADSL Modem PCI have become corrupted ordeleted. Run the 3Com ADSL Modem PCI Uninstallation and then reinstall the 3ComADSL Modem PCI.

For information on uninstalling the 3Com ADSL Modem PCI, refer to Uninstalling the3Com ADSL Modem PCI. Refer to the appropriate 3Com ADSL Modem PCIinstallation section for information on how to successfully re-install the 3Com ADSLModem PCI.

I am receiving messages that certain parts of the 3ComADSL Modem PCI application (graphics, help, etc.) aremissing or unable to be run

The parts of the 3Com ADSL Modem PCI application in question have becomecorrupted or deleted. Run the 3Com ADSL Modem PCI Uninstallation, and thenreinstall the 3Com ADSL Modem PCI.

For information on uninstalling the 3Com ADSL Modem PCI, refer to Uninstalling the3Com ADSL Modem PCI. Refer to the appropriate 3Com ADSL Modem PCIinstallation section for information on how to successfully reinstall the 3Com ADSLModem PCI.

Having a problem installing my modem

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Introduction

Using your Modem


Troubleshooting

Glossary

Technical Support

I installed my modem but Windows saysthe device is not working properlyThe 3Com ADSL Modem PCI may not be working properly due to adriver problem.

Driver Problems

If the computer recognizes the PCI board correctly, but the 3Com ADSL Modem PCIis still not functioning, you might have a driver problem. First, you should make sureyou are installing the correct driver.

On the 3Com ADSL Modem PCI CD, there are different driver files for each possibleoperating system, distinguished by a 95, 98,98SE,ME, or 2K at the end of the .sysdriver filename. For example, the driver file for Windows 98 would be 3cwtw98.sys.Make sure you are installing the correct driver.

If you have installed the correct drivers and are still having a problem, you might wantto try reinstalling the drivers.

Resource conflicts or driver problems

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Introduction

Using your Modem


Troubleshooting

Glossary

Technical Support

I didn't read the manual and I put in thecard first, and now I need to install thedriversIf you installed the modem before running the CD, then Windows Plug & Play willdetect the adapter and ask for the installation file for the modem. You will need tolocate the drivers on the CD, depending on the type of installation you are doing anduse this path for the Windows Plug & Play prompt.

If you have already started the Plug & Play installation, it is important that you do notcancel out of the installation once it has started. If this happens, then Windows may notrecognize the adapter in the Plug & Play mode of operation.

Use the table below to figure out where on the CD the appropriate drivers are located:

Connection Method to YourISP Windows Version Location on CD

Ethernet / PPP over Ethernet Windows 95 \Drivers\PPPoE\Win95\

Ethernet / PPP over Ethernet Windows 98 \Drivers\PPPoE\Win98\

Ethernet / PPP over Ethernet Windows 98 SE \Drivers\PPPoE\Win98se\

Ethernet / PPP over Ethernet Windows ME \Drivers\PPPoE\WinMe\

Ethernet / PPP over Ethernet Windows 2000 \Drivers\PPPoE\win2000\

PPP over ATM Windows 95 \Drivers\PPPoA\Win95\


PPP over ATM Windows 98 SE \Drivers\PPPoA\Win98se\

PPP over ATM Windows ME \Drivers\PPPoA\WinMe\


Load the drivers through Windows Plug & Play. After the drivers are loaded, restartthe PC. After the PC is restarted, run the CD, which will install the applications.

Need to install the drivers

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Introduction

Using your Modem


Troubleshooting

Glossary

Technical Support

Quick View is not running, or Quick Viewis showing a red light which indicates theDSL connection is not upMake sure the ADSL line is connected to the modem. If Quick View is not running,launch by selecting Start -> Programs -> 3Com ADSL Modem PCI -> Quick View.Quick View should show that the line is connected, by turning green.

If the light does not turn green, then the DSL connection is not up.

Check to make sure that your cable is connected to both the DSL modem, and also tothe wall jack providing your DSL service.

Check to be sure your Modem hardware is functioning properly. In Windows 95, 98,98SE and Me open your Control Panel and then double-click on the System applet.When the applet opens, left mouse click on the tab that says Device Manager. Thiswill display different hardware groupings. Double click on the entry that says NetworkAdapters. Under this section you should see your Modem listed. If there is a red X or

a yellow circle with an exclamation point in it then there may be a problem withyour modem. See the section on troubleshooting your Modem hardware.

In Windows 2000, open your Control Panel and then double-click on the Systemapplet. When the applet opens, click on the Hardware tab and click on the DeviceManager button.This will display different hardware groupings. Double click on theentry that says Network Adapters. Under this section you should see your Modem

listed. If there is a red X or a yellow circle with an exclamation point in it thenthere may be a problem with your modem. See the section on troubleshooting yourModem hardware.

If the cable is connected, and you are still unable to establish a physical connection,contact your Service Provider to make sure your physical DSL connection is set up.

Quick View is not running

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Introduction

Using your Modem


Troubleshooting

Glossary

Technical Support

I am unable to connect to or display webpages, or they seem to be loadingextremely slow

If you are using Microsoft Windows Dial-up Networkingto connect to your Internet Service Provider (ISP)...

If you have been able to dial to a Dial-Up connection, then there is not a problem witheither your DSL connection or with your Dial-Up connection. Web pages may loadslow due to congestion on the Internet or because of problems on the site you areattempting to load.

If you are having problems establishing your DSL connection, or you can't dial theconnection to your Internet Service Provider, then refer to the troubleshootinginformation on the physical DSL connection.

Unable to display web pages or they load slowly

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Introduction

Using your Modem


Troubleshooting

Glossary

Technical Support

I can't install the software for my InternetService Provider (ISP), or their softwarecan't find the modemThe software from your Internet Service Provider may be looking for a certain type ofinstallation from your 3Com ADSL Modem PCI.

It is possible that if you didn't follow the instructions for installing the modemhardware and software (specifically if you installed the modem hardware first, withoutrunning the CD first), then you may not have the correct configuration or setupnecessary for the type of DSL service that you are being provided.

Contact your Service Provider to determine if it is necessary to reconfigure yourmodem settings. You may need to uninstall and re-install your ADSL modem, but thisshould only be done as a last resort.

Can't install the software for my ISP

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Introduction

Using your Modem


Troubleshooting

Glossary

Technical Support

GlossaryABRAvailable Bit Rate

ADSLAsymmetric Digital Subscriber Line

AFEAnalog Front End

APIApplication Programming Interface.

ATMAsynchronous Transfer Mode

ATU-CADSL Transceiver Unit - CO End.

ATU-RADSL Transceiver Unit - Remote End.

Burst Tolerance(also referred to as Maximum Burst Size), in cells/second (only applicable for VBRservice). This is the maximum number of cells that can be sent at the peak rate. Thisinformation should be obtained from the service provider.

CAPCarrier Amplitude and Phase Modulation.

CBRConstant Bit Rate.

CHAPChallenge Handshake Authentication Protocol. Part of the PPP protocol to ensureauthentication of the connection between two devices.

COCentral Office

ConstellationsThe constellation size is directly proportional to the total rate of bit transmission. Thelarger the constellation size, the faster transmission will be.

CPECustomer Premises Equipment.

CRC (Cyclic Redundancy Check)CRC fields detect bit errors.

DataLink ProtocolA datalink, or logical data stream, is implemented by PPP protocol. PPP may runmultiple protocols over the same connection.

DMADirect Memory Access

DMTDiscrete Multitone Modulation.

Glossary

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DNS (Domain Name Service)Domain Servers are computers which contain the programs and files which make up adomain's name database. The server uses the name database to translate the name youprovide to an IP address, which is used to establish a connection with the hostcomputer.

DSLAMDigital Subscriber Line Access Multiplexer

DSPDigital Signal Processor.

DUNDial Up Networking.

EncapsulationThis is one of the protocols for transmission.

HDLCHigh-Level Data Link Control

ILMI Version(Interim Local Management Interface version)This is an SNMP based management protocol for an ATM UNI.

IPInternet Protocol.

IPXInternetwork Packet Exchange, the default data packet protocol for Novell's NetWareoperating system.

ISAIndustry Standard Architecture.

ISPInternet Service Provider.

MACMedium access control, a protocol for determining which device has access to thenetwork at any one time.

MiniportWindows NT WAN NDIS Architecture developed by Microsoft for Network Adapters.

NDISNetwork Driver Interface Specification as developed by Microsoft.

NIDNetwork Interface Device

PAPPassword Authentication Protocol. Part of the PPP protocol to ensure authentication ofthe connection between two devices.

PCIPeripheral Component Interconnect. This is bus technology, referring to the slot wherethe board connects to the computer.

PCR (Peak Cell Rate)This is the maximum amount of cells/second transmitted over this connection. This isdetermined by the minimum intercell spacing in seconds, which is the time intervalfrom the first bit of one cell to the first bit of the next cell.

PMDPhysical Media Dependent.

Glossary


POTSPlain Old Telephone Service.

PPP (Point to Point Protocol)This is one of the various protocols for data transmission.

ProtocolA set of rules and procedures that govern the exchange of data between twocommunicating systems.

PVC ( Permanent Virtual Circuit)A PVC is a logical dedicated circuit between two user ports in point-to-pointconfiguration. This is referring to the connection from the computer to the InternetService Provider (ISP).

RASRemote Access Server

RFC 1483This is a protocol for the connection. It is technically referred to as MultiprotocolEncapsulation over ATM Adaption Layer 5.

RIP (Routing Information Protocol)The protocol governing the exchange of routing information between IP routers.

SRAMStatic RAM

SCR (Sustainable Cell Rate)The sustainable cell rate, in cells/second, at which cells are transmitted over thisconnection (only applicable for VBR service). This is the maximum average rate forcells that are sent in bursts at a peak rate.

SPXSequenced Packet Exchange.

SVC (Switched Virtual Circuit)SVCs are virtual circuits established on a call by call basis. SVCs are not supported inthis release of the 3Com ADSL Modem PCI.

TCP/IPTransmission control protocol/Internet protocol, a set of communication protocols thatsupport peer-to-peer connectivity functions for both local and wide area networks.TCP/IP is used to connect to the Internet.

UBR (Unspecified Bit Rate)This is one of the categories of service available from the service provider. Thisspecifies no limit on the rate of information flow to the switch.

UNI Version (User-to-Network Interface Version)The UNI is the point where the user accesses the network.

VBR (Variable Bit Rate) This is one of the categories of service. This is if a certainrate has been specified with the switch for the flow of information.

VCI (Virtual Channel Identifier)The VCI is part of the cell header for the cells that are transferred over this connection.

VPI (Virtual Path Identifier)The VPI is part of the cell header for the cells that are transferred over this connection.

Glossary


Introduction

Using your Modem


Troubleshooting

Glossary

Technical Support

Technical Support

For US customers, the Toll-free Technical Support number is

888-877-5040

Canadian customers can speak to a technical support representative by contactingKeating Technologies at:

905-479-0231

This is not a toll-free number.

There is also online support on the Web 24 hours a day at:

http://support.3com.com/broadbandsupport.htm

If you need to return the Modem to Us

Contact 3Com Customer Support. If the support representative determines that youneed to return the modem, you will receive an USO (User Service Order) number. Youmust have an USO number before returning the modem to us. Ship the unit, postagepaid, in a strong box made of corrugated cardboard with plenty of packing material.DO NOT send the modem back in the original box. Send ONLY the modem (NOTmanuals, diskettes, etc.) Include your USO number, name and address on the shippinglabel as well as inside the package. If possible, send the package via a courier capableof tracking the progress of the shipment. Ship to the following address:

3ComUSO# _________Attn: Dock 151800 W. Central RoadMount Prospect, IL 60056

Customers in Canada needing to return a modem for repair or replacement should sendthe modem to the following address:

Keating Technologies25 Royal Crest Court; Suite 120Markham, ONT L3R 9X4

Technical Support

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http://support.3com.com/broadbandsupport.htm

Introduction What is ADSL? Using your Modem

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