D-Link DFE-650TXD Manuale utente

DFE-650TXD

10/100 Ethernet PC Card

User's Manual

Table of Contents for the DFE-650TX/TXD

10/100 Ethernet PC Card

Introduction i

Contents of Package iii

About Fast Ethernet 1

About Autonegotiation 2

Troubleshooting 4

Networking Basics 15

Technical Support 42

D-Link Locations Worldwide 43

Specifications 44

Warranty 47

Registration 52

INTRODUCTION

The D-Link DFE-650TXD 10/100Mbps PC Card adapter is an

ideal way to connect your laptop computer to your LAN (Local Area

Network.) After completing the steps in the Quick Install Guide, you

will have the ability to share information and resources - such as

files and printers - and take full advantage of a connected environ

ment for work and play!

The DFE-650TXD comes with drivers for the most popular oper

ating systems and can be integrated into a large network. You can

connect your laptop to a network when running Windows 98,

Windows ME, NT 4.0 or 2000.

The D-Link DFE-650TXD 10/100 Ethernet PC Card for notebook

PCs is a credit-card sized Ethernet / Fast-Ethernet adapter for con

necting a notebook PC to an IEEE 802.3 or 802.3u Ethernet net

work. The notebook PC must be equipped with PCMCIA (16 bit)

extension bus and Type II PC Card slot(s) compliant.

NOTE: The terms "PC Card" is used throughout this manual to refer to those

objects as defined in the PCMCIA / PC Card standards published by Personal

Computer Memory Card Industry Association (PCMCIA). The term "slot" as used

in this manual is synonymous with "socket" where the standards use the latter

term in reference to the physical receptacles of a host notebook computer, for

insertion/connection of PC Cards. More information on the standards is available

from PCMCIA's www server at http://www.pc-card.com.

The DFE-650TXD automatically detects the parameters of its

Ethernet environment, and automatically negotiates and determines its

own speed and duplex settings as required for maximum performance

within the environment. (The autonegotiation function is effective only

when the DFE-650TXD is connected to the network by a device

(switch or hub) which also has autonegotiation functionality.)

INTRODUCTION

continued

Inside its compact case, the D-Link DFE-650TXD holds an

Ethernet controller, network processing interface, a 68-pin PC Card

Standard front-end plug, which connects to the notebook PC, and a

direct port for connecting RJ-45. The DFE-650TXD requires no

pre-installation setup -- simply insert its front end into the notebook

PC's PC-Card slot.

The DFE-650TXD is supplied with an RJ-45 receptacle, which

receives the network cable. The direct port features full LED dis

play for linkage and activity states, speed and duplex, transmitting

and receiving data, and carrier detection.

CONTENTS OF PACKAGE

iii

DFE-650TXD 10/100 Ethernet PC Card

Package Contents

ADFE-650TXD 10/100 Ethernet PC Card

BDriver CD

CUser's Manual in CD

DQuick Install Guide

One plastic storage bag for the DFE-650TXD card

DFE-650TXD 10/100

Ethernet PC Card

About Fast Ethernet

Fast Ethernet is a network technology specified by IEEE Standard

802.3u. It extends the traditional 10Mbps (10 megabit/sec)

Ethernet technology to achieve 100Mbps (100 megabit/sec) trans

mission and reception. Because Fast Ethernet retains the tradition

al Ethernet CSMA/CD (Carrier Sense, Multiple Access, Collision

Detect) protocol, it remains wholly compatible with 10Mbps

Ethernet while providing a tenfold increase in network capacity.

The Fast Ethernet standard specifies three subt

ypes, correspon

ding to three media types:

100Base-TX (using two twisted pairs in EIA 568 Category 5

UTP or STP cable)

?100Base-T4 (using four twisted pairs in a Category 3,

Category 4, or Category 5 UTP cable)

?100Base-FX (using two fiber-optic strands.)

The DFE-650TXD provides full-duplex and half-duplex

100Base-TX operation (in Category 5 twisted-pair cable environ

ments). It does not provide 100Base-T4 or 100Base-FX operation.

To provide for traditional 10Mbps Ethernet operation in twisted-pair

cable environments, the DFE-650TXD also offers 10Mbps

Ethernet operation, in full-duplex and half-duplex modes. The

DFE-650TXD's autonegotiation capability provides for automatic

selection of the best operation mode.

About Autonegotiation

The basic idea of auto-negotiation is similar to the familiar process

of making a dialup connection between two modems. When you

attempt a connection you have probably heard some gravelly-

sounding exchanges between your local modem and a modem at

the other end of a telephone line. These annoying sounds let you

know that your modem and the remote modem are preparing for

your intended communication with the remote computer.

During those few seconds before you see the "connect" message

the modems are negotiating the best data communication scheme

which is supported by both modems, and which is suitable for the

quality of the telephone-line connection between them. The

parameters to be settled between the two modems include best

baud rate, compression method, and error correction method.

When the two modems have tested the phone-line quality and

have switched to the combination of parameters which will provide

the best data communication, then you are given the "connect"

message which signals the end of the inter-modem negotiation and

the beginning of your intended communication with the remote

computer.

Autonegotiation between devices within an Ethernet LAN is similar

in concept, but much briefer. The two devices involved in the

autonegotiation will be your DFE-650TXD and the switch or hub

through which it is connected into the LAN. (Switches ordinarily

provide for autonegotiation; traditional hubs do not.)

The parameters to be negotiated between the DFE-650TXD

and its supporting switch or hub include speed (100Mbps = Fast

Ethernet, or 10Mbps = traditional Ethernet) and duplex mode (half-

duplex or full-duplex.)

About Autonegotiation continued

Startup communication between the two devices occurs

when both devices are operating, the cable connection

between them is good, and the connected notebook PC's

network software is loaded. As soon as those conditions are

satisfied, the preparatory process of auto-negotiation

between the DFE-650TXD and its supporting device

begins and proceeds automatically.

If the supporting switch or hub has autonegotiation functional

ity, then it and the DFE-650TXD exchange a series of

messages in which each device signals its capabilities and

listens for corresponding information about the other. The

auto-negotiation process requires only a few milliseconds,

and the two devices select the best communication parame

ters supported by both devices.

If the supporting device does not have autonegotiation func

tionality, then its monotone (single capability) message will be

recognized by the DFE-650TXD's autonegotiation facility,

and the DFE-650TXD will simply switch to the one of its

own capabilities which matches that of the supporting device.

Once the auto-negotiation is completed, then the line is

ready, and it will provide an optimal data channel between the

DFE-650TXD and the supporting device. The line will

remain ready without further auto-negotiation action until the

linkage is broken. Auto-negotiation then reoccurs at any time

that the linkage is restored, again making the line ready for

optimal data communications.

TROUBLESHOOTING

A network can be simple to install and maintain. However,

occasionally something might go wrong. The best approach to

troubleshooting network problems is to start at the very simplest

level and work your way up.

On the following pages we have covered many of the common

troubleshooting situations. Please read through these

pages or skip to the specific one that interests you.

TROUBLESHOOTING continued

UNDERSTANDING THE INDICATORS

Your DFE-650TXD PC Card has indicator lights that can give you

information about your network traffic and help you determine

problems when troubleshooting.

The DFE-650TXD PC Card has six LED indicators:

1. 100/10 Indicator:

An orange light indicates that it is ON.

2. Full Indicator: A green light indicates that it is ON.

3. Link Indicator: A green light indicates that it is ON.

4. RX Indicator:

A green and flashing light indicates that

data is being received

5. TX Indicator:

A green and flashing light indicates that data

is being transmitted.

6. COL Indicator: An orange light indicates interference.

Full

Link

100/10

COL

Indice

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