Cabletron Systems FLIU-1 Manuale utente

C A B L E T R O N

S Y S T E M S,

I N C.

Desktop

Network

Interface

Products

FreeLINK WIRELESS LAN

INSTALLATION GUIDE

FreeLINK cover Page 1 Wednesday, April 19, 2000 11:52 AM

NOTICE

Cabletron Systems reserves the right to make changes in

speciÞcations and other information contained in this document

without prior notice. The reader should in all cases consult

Cabletron Systems to determine whether any such changes have

been made. The hardware, Þrmware, or software described in this

manual is subject to change without notice.

IN NO EVENT SHALL CABLETRON SYSTEMS BE LIABLE FOR

ANY INCIDENTAL, INDIRECT, SPECIAL, OR

CONSEQUENTIAL DAMAGES WHATSOEVER (INCLUDING

BUT NOT LIMITED TO LOST PROFITS) ARISING OUT OF OR

RELATED TO THIS MANUAL OR THE INFORMATION

CONTAINED IN IT, EVEN IF CABLETRON SYSTEMS HAS

BEEN ADVISED OF, KNOWN, OR SHOULD HAVE KNOWN,

THE POSSIBILITY OF SUCH DAMAGES.

Cabletron Systems, Inc.

35 Industrial Way, P.O. Box 5005

Rochester, NH 03867-0505

Printed in the United States of America

Order Number: 9030833 May 93

SPECTRUM

LANVIEW

, and

Remote LANVIEW

are

registered trademarks and

FreeLINK

is a trademark of

Cabletron Systems, Inc.

Ethernet

is a registered trademark of Xerox Corporation. The term

Ethernet is used to indicate any IEEE 802.3-compliant network.

Printed on Recycled Paper.

NOTICE

CONTENTS

iii

CONTENTS

CHAPTER 1 INTRODUCTION

1.1 Using This Manual ................................................................... 1-1

1.2 Getting Help .............................................................................. 1-2

1.3 FreeLINK Wireless LAN System Features ............................ 1-3

1.3.1 Connectivity ................................................................. 1-4

1.3.2 Spread Spectrum Technology .................................... 1-4

1.3.3 Data Security ................................................................ 1-4

1.3.4 Safety Information ....................................................... 1-5

1.3.5 FreeLINK Architecture................................................ 1-5

1.3.6 The Wireless Hub......................................................... 1-6

1.3.7 The Wireless Transceiver/Interface Units................ 1-6

1.4 Software...................................................................................... 1-7

1.5 System LED Indicators............................................................. 1-8

1.6 SpeciÞcations ............................................................................. 1-9

1.6.1 Wireless Hub/62, Wireless Transceiver

FLIU-1, FLIU-8 ............................................................. 1-9

CHAPTER 2 SITE PLANNING AND INSTALLATION

2.1 System Components................................................................. 2-1

2.2 Transceiver Installation ............................................................ 2-2

2.3 Connecting Transceiver/Interface Units ............................... 2-2

2.4 Transceiver Serial Numbers .................................................... 2-3

2.5 FreeLINK Wireless Ethernet Hub........................................... 2-4

2.5.1 Wireless Hub Antenna ................................................ 2-5

2.6 Wireless Hub Chassis ............................................................... 2-6

2.7 Hub Ethernet Connections ...................................................... 2-7

2.8 Hub SETUP................................................................................ 2-7

2.9 Orienting the Hub Antenna .................................................... 2-8

2.10 ConÞguring the Wireless Hub Software................................ 2-8

2.11 Aligning FreeLINK Components ........................................... 2-8

CHAPTER 3 INSTALLING SYSTEM SOFTWARE

3.1 ConÞguring the Software ........................................................ 3-1

CONTENTS

APPENDIX A TROUBLESHOOTING

APPENDIX B TRANSCEIVER SERIAL NUMBERS

INTRODUCTION

Page 1 - 1

CHAPTER 1

INTRODUCTION

Welcome to the Cabletron Systems FreeLINK

Wireless LAN

Installation Guide. This manual provides installation and reference

information for the Cabletron Systems FreeLINK Wireless LAN

System.

The FreeLINK Wireless LAN System uses spread spectrum radio

transmission technology to wirelessly connect Ethernet devices to

an Ethernet Network link.

You should read through this manual to gain a full understanding

of the capabilities of CabletronÕs FreeLINK Wireless LAN System.

1.1 USING THIS MANUAL

This manual is structured so that you follow sequential chapters as

you install the Cabletron FreeLINK Wireless LAN System.

Chapter 1,

Introduction

, discusses the capabilities of the Wireless

LAN system and lists its operating and environmental

speciÞcations.

Chapter 2,

Site Planning and Installation

, contains instructions

for planning the wireless LAN site and installing the hardware

components of the FreeLINK Wireless LAN System.

Chapter 3,

Installing FreeLINK Software

, provides instructions

for installing the wireless LAN software and conÞguring the LAN

SystemÕs operating parameters.

NOTE: Those who are familiar with Ethernet 802.3 technology can use

the Quick Start Installation Procedure to expedite installation.

The Quick Start procedure contains Section Number references

to this manual.

Page 1 - 2

INTRODUCTION

1.2 GETTING HELP

If you need additional support related to the FreeLINK Wireless

LAN System, or if you have any questions, comments, or

suggestions concerning this manual, contact Cabletron Systems

Technical Support. Before calling Cabletron Technical Support,

please have the following information available for use by the

Cabletron Technical Support personnel who will assist you.

¥ The FreeLINK transmitter and receiver type and Serial

Number.

¥ The Wireless LAN software version that appears on the front of

the software diskette.

¥ Any other relevant information pertaining to the site

conÞguration, etc.

You can contact Cabletron Systems Technical Support by:

Phone: (603) 332-9400

FAX: (603) 335-4743

BBS: (603) 335-3358 (4 lines available)

AppleLink D3355, The Cabletron folder, in Third Party

Vendors folder, contains latest Cabletron

network drivers.

Cabletron Technical Support can also be reached over the Internet

by sending email to:

support@ctron.com (IP Address 134.141.197.25)

CompuServe subscribers can also contact Cabletron Technical

Support through the Cabletron Forum by entering:

GO CTRON at any ! prompt.

INTRODUCTION

Page 1 - 3

1.3 FreeLINK WIRELESS LAN SYSTEM FEATURES

This section outlines the features of the FreeLINK Wireless LAN

System. Figure 1-1, below, shows the components of the FreeLINK

Wireless LAN System.

Figure 1-1. FreeLINK Wireless LAN System Components

Signal

Quality

Link

10BASE-T

Ports

Antenna

Cable

AC Power Cord FLIU-8 Multi-User

Interface Unit

Connection to

Network/Backbone

LED

Indicators

Antenna

FreeLINK

Wireless Hub Antenna

FreeLINK /62

Wireless Ethernet Hub

Transmit

Page 1 - 4

INTRODUCTION

1.3.1 Connectivity

With the Cabletron Systems FreeLINK Wireless LAN System you

can connectEthernet nodes within an wireless 80 meter radius of

the transmitter hub antenna. The FreeLINK system accommodates

up to 62 wireless transceivers, distributed anywhere within the 80

meter operating radius.

1.3.2 Spread Spectrum Technology

Spread spectrum radio communications is a technique used to

transmit radio signals that was originally developed for the

military. It was initially implemented in the 1950s for use in

battleÞeld voice communications because it is extremely difÞcult

to detect that the signal is even present, and if detected, it is even

more difÞcult to decode. It is extremely difÞcult to interfere with,

or jam, the signal.

There are two techniques used in spread spectrum: frequency

hopping and direct sequence. Most wireless network systems

today, including FreeLINK, use direct sequence. Spread spectrum

radio, and FreeLINK in particular, resists detection and

interference, and allows multiple systems to operate in the same

area (hence permitting overlapping FreeLINK hubs). This level of

security far exceeds that of narrow-band transmission and

unshielded twisted pair wire, and uses very little power.

1.3.3 Data Security

Spread spectrum radio transmission techniques were used

exclusively by the U.S. Army since the 1950s for battleÞeld

communications. Spread spectrum has been used since 1967 by the

Israeli military for voice and telemetry communications. The

overriding reason for the militaryÕs extensive use of spread

spectrum is its inherent data security characteristic.

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