Cabletron Systems FOT-F3 User Manual

FOT-F3

FIBER OPTIC TRANSCEIVER

USER’S MANUAL

NOTICE

Cabletron Systems reserves the right to make changes in specifications 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, firmware, 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.

Part Number: 9030461-01 July 1996

LANVIEW

is a registered trademark of Cabletron Systems, Inc.

LAN-MD, FOT-F3, FOMIM-32/36/38, MMAC, NBR-220

trademarks of Cabletron Systems, Inc.

Velcro

is a registered trademark of Velcro Industries, B.V.

Printed on Recycled Paper

, and

IRM

are

FOT-F3 USER’S MANUAL i

FCC NOTICE

This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Note:

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment uses, generates, and can radiate radio frequency energy and if not installed in accordance with the operator’s manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause interference in which case the user will be required to correct the interference at his own expense.

Warning:

expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

Changes or modifications made to this device which are not

DOC NOTICE

This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications.

Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites applicables aux appareils numériques de la class A prescrites dans le Règlement sur le brouillage radioélectrique édicté par le ministère des Communications du Canada.

ii FOT-F3 USER’S MANUAL

VCCI NOTICE

This equipment is in the 1st Class Category (information equipment to be used in commercial and/or industrial areas) and conforms to the standards set by the Voluntary Control Council for Interference by Information Technology Equipment (VCCI) aimed at preventing radio interference in commercial and/or industrial areas.

Consequently, when used in a residential area or in an adjacent area thereto, radio interference may be caused to radios and TV receivers, etc.

Read the instructions for correct handling

FOT-F3 USER’S MANUAL iii

DECLARATION OF CONFORMITY

Application of Council Directive(s):

Manufacturer’s Name:

Manufacturer’s Address:

European Representative Name:

European Representative Address:

Conformance to Directive(s)/Product Standards:

Equipment Type/Environment:

We the undersigned, hereby declare that the equipment packaged with this notice conform to the above directives.

Manufacturer Legal Representative in Europe Mr. Richard Michaud Mr. J. Solari

______________________________ ________________________ Full Name Full Name

Manager of Engineering Services Managing Director - E.M.E.A.

______________________________ ________________________ Title Title

Rochester, NH, USA Newbury, Berkshire, England

______________________________ ________________________ Location Location

89/336/EEC 73/23/EEC

Cabletron Systems, Inc. 35 Industrial Way

PO Box 5005 Rochester, NH 03867

Mr. J. Solari Cabletron Systems Limited

Nexus House, Newbury Business Park London Road, Newbury Berkshire RG13 2PZ, England

EC Directive 89/336/EEC EC Directive 73/23/EEC EN 55022 EN 50082-1 EN 60950

Networking Equipment, for use in a Commercial or Light Industrial Environment.

iv FOT-F3 USER’S MANUAL

CHAPTER 1 INTRODUCTION

1.1 USING THIS MANUAL...............................................................1-1

1.2 CONVENTIONS.........................................................................1-2

1.3 OVERVIEW OF THE FOT-F3....................................................1-2

1.3.1 Connections...............................................................1-3

1.3.2 Distance and Cable Type...........................................1-4

1.3.3 LANVIEW LEDs.........................................................1-5

1.3.4 Application..................................................................1-7

1.4 GETTING HELP.........................................................................1-9

1.5 RELATED MANUALS ..............................................................1-10

CHAPTER 2 INSTALLATION REQUIREMENTS

2.1 NETWORK DESIGN GUIDELINES ...........................................2-1

2.1.1 Fiber Optic Requirements..........................................2-1

2.1.2 AUI Cable Requirements ...........................................2-2

CHAPTER 3 INSTALLATION

3.1 UNPACKING THE FOT-F3........................................................3-1

3.2 CONNECTING THE FOT-F3 TO THE NETWORK....................3-2

3.2.1 Setting the SQE Switch..............................................3-2

3.2.3 Connecting the Fiber Optic Cable..............................3-5

3.3 SURFACE MOUNTING THE FOT-F3........................................3-8

3.4 CABLE SUPPORT INSTALLATION...........................................3-9

3.4.1 Cable Strain Relief for Surface Mounted FOT-F3......3-9

3.4.2 Cable Strain Relief for Non-Mounted FOT-F3..........3-10

FOT-F3 USER’S MANUAL v

CONTENTS

CHAPTER 4 TESTING AND TROUBLESHOOTING

4.1 INSTALLATION CHECK-OUT ...................................................4-1

4.1.1 Testing the Fiber Optic Link Segment........................4-1

4.1.2 Testing the FOT-F3 Fiber Optic Transceiver .............4-3

4.2 USING LANVIEW.......................................................................4-4

APPENDIX A SPECIFICATIONS

A.1 FIBER OPTIC INTERFACE.................................................. A-1

A.2 AUI CONNECTOR................................................................ A-3

A.3 POWER SUPPLY ................................................................. A-3

A.4 ENVIRONMENTAL............................................................... A-4

A.5 AGENCY APPROVALS........................................................ A-4

A.6 PHYSICAL ............................................................................ A-4

vi FOT-F3 USER’S MANUAL

CHAPTER 1

INTRODUCTION

Welcome to Cabletron Systems

Transceiver User’s Manual

installation and reference guide for the FOT-F3 transceiver. You should have a general working knowledge of Ethernet or

IEEE 802.3 type data communications networks and their physical layer components before installing the FOT-F3.

FOT-F3 Fiber Optic

. This manual serves as a simple

1.1 USING THIS MANUAL

You should read through this manual to gain a full understanding of the FOT-F3 and its capabilities.

This manual is organized as follows: Chapter 1,

FOT-F3, outlines the conventions used in this manual, provides information on how to receive additional help, and provides a list of related manuals.

Chapter 2, and hardware requirements that must be met before installing the FOT-F3.

Chapter 3, FOT-F3, setting the SQE switch, connecting the transceiver to the network, connecting the transceiver to an active Ethernet device, and, if desired, mounting the transceiver with the Velcro mounts provided with the unit.

Introduction

Installation Requirements

Installation

, discusses the capabilities of the

, contains steps for unpacking the

, contains the network

FOT-F3 USER’S MANUAL 1-1

CHAPTER 1:

INTRODUCTION

Chapter 4,

Testing and T roub leshooting

, contains procedures for verifying the proper installation of the FOT-F3. It also describes LANVIEW LEDs and their function.

Appendix A,

Specifications

, provides the specifications for the

FOT-F3 transceiver.

1.2 CONVENTIONS

The following conventions are used in this manual:

•

Note

— Calls the reader’s attention to any item of

information that may be of special importance.

•

Caution

— Contains information essential to avoid damage

to the equipment.

1.3 OVERVIEW OF THE FOT-F3

The FOT-F3 Fiber Optic Transceiver (Fiber Optic Medium Attachment Unit or FOMAU) (Figure 1-1) is a device that allows the connection of two Ethernet devices using single mode fiber optic cable. The FOT-F3 uses the same signaling protocols specified by FOIRL and is completely IEEE 802.3 compatible at the AUI interface (the AUI port connects the transceiver to a device or workstation via an AUI cable).

The FOT-F3 also has the Cabletron Systems LANVIEW diagnostic system that monitors network activity and can help to quickly diagnose physical layer problems using its LEDs.

1-2 FOT-F3 USER’S MANUAL

OVERVIEW OF THE FOT-F3

DB15 AUI Port

End View

SQE Switch

SQE

Front View

R C V

FOT-F3

802.3 COMPATIBLE SINGLE MODE FIBER OPTIC TRANSCEIVER with LANVIEW

LANVIEW LEDs

1300nm

ST Fiber Optic Ports

End View

0461-01

Figure 1-1 FOT-F3

1.3.1 Connections

The FOT-F3 connects two active Ethernet devices using an AUI cable and a fiber optic link segment. Devices such as repeaters, multiport repeaters, multiport transceivers or host systems are connected using fiber optic cables.

The FOT-F3 is fully compatible with IEEE 802.3 and uses the same signaling specified in FOIRL specifications. It provides the flexibility to connect to networks using Ethernet Version 1, Version 2, and/or IEEE 802.3 equipment through an AUI port. However, the FOT-F3 uses 1300 nm wave-length optical transmitters and receivers and should be used only with Cabletron Systems Ethernet single mode products such as the FOMIM-36, FOMIM-32, and the FOMIM-38.

FOT-F3 USER’S MANUAL 1-3

CHAPTER 1:

INTRODUCTION

A fiber optic cable is connected to the transceiver through ST fiber optic ports on the FOT-F3. This provides an optical link to connect the device to the network.

1.3.2 Distance and Cable Type

The FOT-F3 supports single mode fiber optic cable for sizes such as 8.3/125 µm, 8.7/125 µm, 9/125 µm, and 10/125 µm. You can also use multimode cable such as 62.5/125 µm, but the signal distance will be much shorter.

The signal distance is dependent on the cable type and the overall system fiber optic budget. If the system budgets and timing constraints are met, then a distance of over five kilometers is possible with single mode cable. However, Cabletron Systems only supports a distance of 5 kilometers. If using 62.5/125 multimode cable, signal distance is about 2 km.

An AUI cable, up to 50 meters long, is used to connect an Ethernet device to the AUI port on the transceiver. The AUI cable must meet specifications for either IEEE 802.3 or Ethernet Version 1 or Version 2.

Signal Quality Error (SQE) Test

The FOT-F3 has a Signal Quality Error (SQE) Test Enable Switch that allows the enabling or disabling of the SQE (“heartbeat”) test function. The SQE test enables the FOT-F3 transceiver to generate a signal to ensure that the collision circuit and path are operational between the FOT-F3 and the Ethernet device attached to the AUI port of the transceiver.

1-4 FOT-F3 USER’S MANUAL

OVERVIEW OF THE FOT-F3

The SQE test signal is generated after the FOT-F3 has transmitted a data packet. This signal is generated only between the FOT-F3 and the device; it is not transmitted onto the network.

Note:

Do not enable the SQE test feature when the FOT-F3 is attached to a repeater or Ethernet Version 1 equipment. Otherwise, network problems (excess collisions) will result.

1.3.3 LANVIEW LEDs

The FOT-F3 incorporates Cabletron Systems LANVIEW diagnostic and monitoring system. LANVIEW is a series of LEDs incorporated into all Cabletron Systems products. If a problem arises, troubleshooting of power failures, collisions, cable faults, or many other problems can be diagnosed rapidly using these LEDs.

The LANVIEW LEDs are shown in Figure 1-2 followed by a brief description of each LED.

Note:

Chapter 4, detail about the LANVIEW LEDs and how to interpret them for troubleshooting.

Testing and Troubleshooting,

0461-05

provides more

Figure 1-2 LANVIEW LEDs

FOT-F3 USER’S MANUAL 1-5

CHAPTER 1:

INTRODUCTION

PWR (Power)

When on, this green LED indicates that the FOT-F3 is receiving power.

SQE (Signal Quality Error) Test Function

When on, this yellow LED indicates that SQE is enabled.

XMT (Transmit)

This green LED flashes to indicate that the FOT-F3 is transmitting frames onto the network.

RCV (Receive)

This yellow LED flashes to indicate that the FOT-F3 is receiving frames from the network.

CLN (Collision)

This red LED flashes to indicate that the FOT-F3 is detecting a collision on the network.

LNK (Link OK)

When on, this green LED indicates that a link has been established between the FOT-F3 and the device at the other end of the fiber optic link segment.

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