3Com CMX 3CR292-DE56 Manuale utente

3Com U.S. RoboticsCable Modem CMX

Quick Installation Guide

What You Need to Install Your Cable Modem CMX

IInncclluuddeedd::

•Cable modem

•Cable modem power supply

•RJ-45 network cable

•Rubber feet and stacking clips kit

•Cable ConnectionsCD-ROM

•This Quick Installation Guide

•User’s Guide & Reference

PN 1.024.1970-00

are registered trademarks and Connections is a trademark of 3Com

Corporation. Windows is a registered trademark of Microsoft Corp.

Macintosh is a registered trademark of Apple Computer, Inc. Any other

trademarks, trade names, or service marks used in this manual are the

property of their respective owners.

NNoott IInncclluuddeedd::

•A PC running Windows95 (or later) or a Macintosh

running System 7.5 (or later) with TCP/IP protocol

installed (see the “Before You Begin” section in the

included User’s Guide & Reference for more information

about installing TCP/IP)

•An active two-way cable line

•An active Ethernet port or network interface card (NIC)

installed in your computer

•A 7/16 inch (or adjustable) wrench for securing the cable

line to the modem

•A screwdriver, pushpins, and screws (for optional wall-

mounting). The screw heads should be at least 0.2” (5mm)

in diameter for them to be properly captured in the slot. If

you are using wood screws, use #6 pan heads or

equivalent.

Hardware Installation

1. Contact your local cable company. They can help you establish a cable Internet access account and install a cable access outlet

in the room where your computer is located.

2. Prepare your workspace. If you are planning to wall-mount your cable modem, see page 11 in the User’s Guide & Reference or

the perforated card that is part of this Installation Guide. Otherwise, prepare to use your cable modem by performing the following

steps:

•Position your computer near your cable outlet.

•If you plan to install the modem on your desktop, attach the rubber feet to the bottom of the modem (see page 13 in the

User’s Guide & Reference for details).

•If you plan to wall-mount the modem, you will need the mounting template included as the last page of this guide (see

page 11 in the User’s Guide & Reference for more information)

•If you plan to stack the modem on top of 3Com OfficeConnectproducts, you will need the stacking clips included with

your modem (see page 13 in the User’s Guide & Reference for more information)

•Place the modem where it will be near your computer and the cable outlet, leaving plenty of room to guide the cables away

from the modem without crimping the cables.

•The modem should have access to constant airflow.

•Do not stack anything on top of the modem (see page 13 in the User’s Guide & Reference for information on stacking the

cable modem on top of 3Com OfficeConnect products).

•The temperature where the cable modem will be located should be within 0 and 40°C (32 and 104°F). Relative humidity

should be between 5 and 95%, non-condensing.

3. Verify your computer is set up for networking. Windows users should install the TCP/IP protocol and Mac users should verify

that networking support is installed. The cable modem requires your computer to have an RJ-45 Ethernet interface and TCP/IP

installed. See the “Before Your Begin” section in the User’s Guide & Reference for more information.

4. Connect your cable modem to your computer and the cable line. Use the diagrams below as a guide. See the section titled

“Cable Modem Hardware Installation” in the User’s Guide & Reference for detailed instructions.

5. Power up the cable modem. Plug the cable modem power supply into a wall outlet. After your cable modem completes start up

and initialization (both the Cable modem Power and Cable modem Status LEDs are lighted solid green), power up your computer,

launch your Web browser and experience the Internet at blazing speeds using your new U.S. Robotics Cable Modem CMX!

CATV

SERIAL 10 BT

cable line (to cable

outlet) RJ-45 Cable

power supply

(to wall outlet)

RJ-45 cable

(to NIC)

13 212

311

410

68 7

15 2585

3080

4575

5070

5565 60

RJ-45 cable

(to NIC)

cable outlet

Cable

Modem PC Link Cable

Status

Power Status Activity Activity FCN

power supply cable

(to wall outlet)

3ComU.S. Robotics

CableModem

CMX

Installing the Cable

Connections

CD-ROM

Although you do not need to install the included Cable Connections CD-ROM to use your Cable Modem CMX, you will want to

discover the valuable free software products and Internet service provider offers included on the CD-ROM. To install Cable

Connections, follow the instructions inside the CD’s jacket or on the CD-ROM itself.

Cable Modem Operation

Once your cable modem is properly installed and power supply is connected to AC power, it should automatically scan for the active

cable modem channel from your cable company’s server. Once the front panel LEDs indicate the modem is connected to the server, all

you need to do is launch your Internet or e-mail software and you’re ready to work online. Here’s a quick overview of the LED lights

on the front panel of your modem and what they can tell you about the performance of your modem and the condition of your

connection.

Cable

Modem PC Link Cable

Status

Power Status Activity Activity FCN

123456

1. Cable Modem Power - Indicates power is applied to the cable modem. This light is solid green when the modem is on.

2. Cable Modem Status - When this LED is solid green, the modem has completed initial communications with the cable company

server and is functional. If it is blinking, the modem is still starting up. If this LED never stops blinking, you may be using the

wrong power supply or the modem may require service.

3. PC Link Status - Indicates that the cable modem is connected to the Ethernet card in your computer. This light is solid green when

this link is established.

4. PC Link Activity - Indicates that data is being transmitted to or from your PC over the Ethernet port. Flashing orange indicates

traffic. This LED should blink when data is being transmitted or received over the Ethernet port.

5. Cable Activity - Indicates that data is being transmitted to or from your cable company over the RF (cable) port. Flashing orange

indicates traffic.

6. FCN - Individual cable operators determine the function of this LED.

INSTRUCTIONS FORWALL-MOUNTINGTHE CABLE MODEM

Wall-mounting Template

See other side for basic instructions.

For complete instructions, see the

User's Guide & Reference

INSTRUCTIONS FORWALL-MOUNTINGTHE CABLE MODEM

1Remove this template from

this

Installation Guide

4Secure the screws in the starter

holes, leaving at least 1/4" (6mm)

clearance.

3Insert pushpins into the

cross hairs on the template.

2Place the template at least 20" (50 cm)

above and parallel to the floor.

INSTRUCTIONS FORWALL-MOUNTING THE CABLE MODEM

Wall-mountingTemplate

Seeother side for basic instructions.

Forcomplete instructions, see the

User'sGuide & Reference

INSTRUCTIONS FORWALL-MOUNTING THE CABLE MODEM

Wall-mountingTemplate

Seeother side for basic instructions.

Forcomplete instructions, see the

User'sGuide & Reference

20"

[50 cm]

INSTRUCTIONS FOR WALL-MOUNTING THE CABLE MODEM

Wall-mounting Template

See other side for basic instructions.

For complete instructions, see the

User's Guide & Reference

1/4"

[6 mm]

Starter hole

Screw

5Attach the cables.

CATV

SERIAL 10 BT

power supply

(to wall outlet)

cable line (to cable

outlet)

RJ-45 cable

(to NIC)

6Fit the mounting holes over the screw heads

and slide the unit down until it locks in place.

Screws

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