Allied Telesis AT-FS202SC/FS1 User Manual

AT-FS201 AT-FS202 AT-FS202SC/FS1

Bridging Media Converters

Version 4

Installation Guide

PN 613-000400 Rev A

Ethernet is a registered trademark of Xerox Corporation. All other product names, company names, logos or other designations mentioned herein are trademarks or registered trademarks of their respective owners.

Allied Telesyn, Inc. reserves the right to make changes in specifications and other information contained in this document without prior written notice. The information provided herein is subject to change without notice. In no event shall Allied Telesyn, Inc. be liable for any incidental, special, indirect, or consequential damages whatsoever, including but not limited to lost profits, arising out of or related to this manual or the information contained herein, even if Allied Telesyn, Inc. has been advised of, known, or should have known, the possibility of such damages.

Electrical Safety and Emission Compliance Statement

Standards: This product meets the following standards.

U.S. Federal Communications Commission

Declaration of Conformity

Radiated Energy Note: This equipment has been tested and found to comply with the limits for

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

Note: Modifications or changes not expressly approved of by the manufacturer or the FCC, can void your right to operate this equipment.

Industry Canada

This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.

Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.

RFI Emissions FCC Class A, EN55022 Class A,

Warning: In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures.

Immunity EN55024 Electrical Safety EN60950 (TUV), UL 60950 (

Laser Safety EN60825

Warning: Class 1 Laser product. This is a “Class 1 LED Product” (AT-FS201 model). Warning: Do not stare into the Laser beam. At time of installation, the Fiber Optic Lasers comply with FDA Radiation

Performance Standard 21CFR Subchapter J, applicable at date date of manufacture.

CSA 950

 1

 2

CULUS

iii

Electrical Safety and Emission Compliance Statement

Important: Appendix C contains translated safety statements for installing this equipment.

Wichtig: Anhang C enthält übersetzte Sicherheitshinweise für die Installation dieses

Importante: El Apéndice C contiene mensajes de seguridad traducidos para la instalación

Important : L'annexe C contient les instructions de sécurité relatives à l'installation de cet

Importante: I’Appendice C contiene avvisi di sicurezza tradotti per l’installazione di questa

Важно: Приложение C содержит переведенную инструкцию по безопасности при

When you see the , go to Appendix C for the translated safety statement in your language.

Geräts. Wenn Sie  sehen, schlagen Sie in Anhang C den übersetzten Sicherheitshinweis in Ihrer Sprache nach.

de este equipo. Cuando vea el símbolo , vaya al Apéndice C para ver el mensaje de seguridad traducido a su idioma.

équipement. Lorsque vous voyez le symbole , reportez-vous à l'annexe C pour consulter la traduction de ces instructions dans votre langue.

apparecchiatura. Il simbolo , indica di consultare l’Appendice C per l’avviso di sicurezza nella propria lingua.

установке данного устройства. Если Вы встретите , перейдите к Приложению C для получения переведенной инструкции по безопасности.

Electrical Safety and Emission Compliance Statement .................................iii

Preface ...............................................................................................................vii

How This Guide is Organized .............................................................................vii

Document Conventions......................................................................................viii

Where to Find Web-based Guides.......................................................................ix

Contacting Allied Telesyn..................................................................................... x

Online Support.............................................................................................. x

Email and Telephone Support ...................................................................... x

Returning Products ....................................................................................... x

Sales or Corporate Information..................................................................... x

Chapter 1

Overview ............................................................................................................. 1

Introduction .......................................................................................................... 2

Bridging Media Converter Components...............................................................4

External Power Supply.........................................................................................6

Key Features........................................................................................................ 7

Status LEDs .........................................................................................................8

Twisted Pair Port.................................................................................................. 9

Port Speed....................................................................................................9

Duplex Mode................................................................................................. 9

Auto MDI/MDI-X.......................................................................................... 10

Fiber Optic Port..................................................................................................11

Port Speed..................................................................................................11

Duplex Mode...............................................................................................11

Bridging Media Converter Performance............................................................. 12

DIP Switches...................................................................................................... 13

MAC Address Table...........................................................................................14

Store and Forward ............................................................................................. 15

Network Topology .............................................................................................. 16

Contents

Chapter 2

Installation ........................................................................................................ 17

Verifying Package Contents............................................................................... 17

Planning the Installation..................................................................................... 18

Selecting a Site .................................................................................................. 20

Reviewing Safety Guidelines ............................................................................. 21

Installing the Bridging Media Converter .............................................................23

Using the Bridging Media Converter on a Desktop..................................... 23

Connecting a 12VDC Powered Unit................................................................... 28

Warranty Registration ........................................................................................ 29

Chapter 3

Troubleshooting...............................................................................................31

Appendix A

Technical Specifications ................................................................................. 35

Physical.............................................................................................................. 35

Temperature.......................................................................................................35

Electrical Rating ................................................................................................. 35

Agency Certifications ......................................................................................... 36

RJ-45 Twisted Pair Port Pinouts ........................................................................ 37

Fiber Optic Port Specifications........................................................................... 38

Appendix B

Cleaning Fiber Optic Connectors................................................................... 41

Using a Cartridge-Type Cleaner ........................................................................ 42

Using a Swab..................................................................................................... 44

Appendix C

Translated Electrical, Safety, and Emission Information .............................47

Preface

This guide contains instructions on how to install an AT-FS201, AT-FS202, and AT-FS202SC/FS1 Bridging Media Converters.

How This Guide is Organized

This guide contains the following chapters and appendices:

 Chapter 1, ”Overview” on page 1  Chapter 2, ”Installation” on page 17  Chapter 3, ”Troubleshooting” on page 31  Appendix A, ”Technical Specifications” on page 35  Appendix B, ”Cleaning Fiber Optic Connectors” on page 41  Appendix C, ”Translated Electrical, Safety, and Emission Information”

on page 47

This preface contains the following sections:

 “Document Conventions” on page viii  “Where to Find Web-based Guides” on page ix  “Contacting Allied Telesyn” on page x

vii

Preface

Document Conventions

This document uses the following conventions:

Note

Notes provide additional information.

Caution

Cautions inform you that performing or omitting a specific action may result in equipment damage or loss of data.

Warning

Warnings inform you that performing or omitting a specific action may result in bodily injury.

viii

AT-FS20x Series Installation Guide

Where to Find Web-based Guides

The installation and user guides for all Allied Telesyn products are available in portable document format (PDF) on our web site at www.alliedtelesyn.com. You can view the documents online or download them onto a local workstation or server.

Preface

Contacting Allied Telesyn

This section provides Allied Telesyn contact information for technical support as well as sales or corporate information.

Online Support

You can request technical support online by accessing the Allied Telesyn Knowledge Base: www.alliedtelesyn.com/kb. You can use the Knowledge Base to submit questions to our technical support staff and review answers to previously asked questions.

Email and Telephone Support

For technical support via email or telephone, refer to the Support & Services section of the Allied Telesyn web site: www.alliedtelesyn.com.

Returning Products

Products for return or repair must first be assigned a return materials authorization (RMA) number. A product sent to Allied Telesyn without an RMA number will be returned to the sender at the sender’s expense.

To obtain an RMA number, contact Allied Telesyn’s Technical Support group through the Allied Telesyn web site: www.alliedtelesyn.com.

Sales or Corporate Information

You can contact Allied Telesyn for sales or corporate information on our web site: www.alliedtelesyn.com. To find the contact information for your country, select Contact Us -> Worldwide Contacts.

Chapter 1 Overview

The AT-FS201, AT-FS202, and AT-FS202SC/FS1 Bridging Media Converters include the following models:

 AT-FS201

 AT-FS202

 AT-FS202SC/FS1

The AT-FS201, AT-FS202, and AT-FS202SC/FS1 Bridging Media Converters are designed to extend the distance of your network by converting Fast Ethernet data between twisted pair cabling and fiber optic cabling. These dual-port converters can also improve the performance of your network by dividing it into smaller, more manageable segments.

Each converter features a 100Base-FX fiber optic port and a 10Base-T/ 100Base-TX twisted pair port. The fiber optic port has either a dual SC or a dual ST connector and a maximum operating distance of 2 kilometers (1.24 miles) to 15 kilometers (9.4 miles), depending on the model. The twisted pair port has a RJ-45 connector with a maximum operating distance of 100 meters (328 feet).

The fiber optic port operates at 100 Mbps, while the twisted pair port operates at 10 Mbps or 100 Mbps. Both ports feature half- and full-duplex operation.

AT-FS201, AT-FS202, and AT-FS202SC/FS1 Bridging Media Converters can be installed on a desktop or in an AT-MCR12 chassis. These converters are easy to install and do not require software configuration or management.

Chapter 1: Overview

Introduction

The fiber optic port on the bridging converter offers an important advantage over fiber optic ports commonly found on Fast Ethernet equipment. It can simultaneously transmit and receive Ethernet data for full-duplex operation over a single fiber strand. In comparison, a conventional fiber optic port requires two fiber strands for full-duplex operation.

In a conventional fiber optic installation, each fiber optic strand carries only one data stream at a time and in only one direction, as shown in Figure 1.

Fiber Strand

Data Stream

λ1

Figure 1. Data Stream on a Single Fiber Strand

The data stream is transmitted at a specific wavelength, typically 850 nanometers (nm), 1310 nm, or 1550 nm. These wavelengths are known for their low attenuation.

Full-duplex operation in a conventional fiber installation involves two separate fiber strands, one for transmitting data and another for receiving data, as shown in Figure 2. Both data streams are transmitted at the same wavelength, but since each is on a separate strand, the signals remain separate.

λ1

Figure 2. Full-duplex Operation on a Conventional Fiber Optic Installation

The fiber optic port on the bridging converter combines two data streams onto one fiber optic strand. This allows you to use more of the bandwidth inherent in fiber cable and so significantly increase the efficiency of your existing fiber optic backbone network.

AT-FS20x Series Installation Guide

The port can simultaneously send and receive Ethernet packets using the same wavelength of 1310 nm for both data streams. This allows for fullduplex operation with just one strand, as shown in Figure 3.

λ1 λ1

Figure 3. Two Data Streams on a Fiber Strand

The fiber optic port makes these bridging converter extremely useful in situations where a conventional fiber optic backbone network no longer has sufficient bandwidth to handle the data traffic. This problem has become a common occurrence on many networks due to the rapid growth of data traffic from sources such as voice over IP, multimedia applications, video conferencing, and the Internet.

The traditional solution to increasing bandwidth on a fiber optic backbone has been to install additional fiber optic cable. But this can be an extremely costly and time-consuming process. Additionally, conventional fiber optic installations are unable to use the extremely large bandwidth capacity that is inherent in fiber optic cable.

Chapter 1: Overview

Bridging Media Converter Components

Figure 4 shows the front panel of the AT-FS201 Bridging Media Converter.

100Base-FX

LNK/ ACT

FD/COL

AT-FS201

MULTI MODE

TX RX

BRIDGING MEDIA CONVERTER IEEE 802.3/802.3U AUTO MDI/MDI-X

10Base-T/100Base-TX

CLASS 1

LED PRODUCT

PORT 2PORT 1

LNK/ ACT

COL

PWR

AUTO NEG

FD/

100M

Figure 4. AT-FS201 Front Panel

Figure 5 shows the front panel of the AT-FS202 Bridging Media Converter.

100Base-FX

LNK/ ACT

FD/COL

PORT 1

TX RX

10Base-T/100Base-TX

CLASS 1

LASER PRODUCT

PORT 2

LNK/ ACT

COL

PWR

AUTO NEG

FD/

100M

MULTI MODE

AT-FS202 BRIDGING MEDIA CONVERTER IEEE 802.3/802.3U AUTO MDI/MDI-X

Figure 5. AT-FS202 Front Panel

Figure 6 shows a front panel of an AT-FS202SC/FS1 Bridging Media Converter.

100Base-FX

LNK/ ACT

FD/COL

AT-FS202SC/FS1

SINGLE MODE

TX RX

PORT 1

10Base-T/

100Base-TX

CLASS 1

LASER PRODUCT

PORT 2

BRIDGING MEDIA CONVERTER IEEE 802.3/802.3U AUTO MDI/MDI-X

Figure 6. AT-FS202SC/FS1 Front Panel

LNK/ ACT

COL

PWR

AUTO NEG

FD/

100M

938

AT-FS20x Series Installation Guide

The back panel of the AT-FS201, AT-FS202, and AT-FS202SC/FS1 Bridging Media Converters features a DC power connector and DIP switches for manually configuring the ports.

Figure 7 shows the back panel of the AT-FS201, AT-FS202, and AT-FS202SC/FS1 Bridging Media Converters with a 12VDC power connector.

PORT

1222

21 34

DUPLEX

12 V DC

SPEED (Mbps)

AUTO

MODE

HALF FULL

NEG

OFF ON

10 100

Figure 7. Back Panel of the AT-FS201, AT-FS202, and AT-FS202SC/FS1

Bridging Media Converters (12VDC Power Connector)

Table 1 lists the maximum operating distances for the converters.

Table 1. Maximum Operating Distances

100Base-FX

Model

Connect

Maximum Operating

Distance

AT-FS201 Dual ST 2 km

10Base-T/100Base-

Connect

RJ-45 100 m

(1.24 mi)

AT-FS202 Dual SC 2 km

RJ-45 100 m

(1.24 mi)

AT-FS202SC/FS1 Dual SC 15 km

RJ-45 100 m

(9.4 mi)

1. Maximum distance for 100 Mbps optical datalinks is dependent on the following factors: type of optical fiber, duplex mode of both end-nodes, and maximum optical loss budget for each of the optical fiber at the operating optical wavelength.

2. Maximum distance can only be obtained when the UTP/STP cabling is installed and verified to TIA/EIA 568A Commercial Building Telecommunications Cabling Standard.

Maximum Operating

Distance

(328 ft)

Chapter 1: Overview

External Power Supply

The 12VDC-version converters come with the AC/DC power adapter, shown in Figure 8. This is an approved safety compliant AC power adapter for the 100 and 240V AC versions with an unregulated output of 12VDC.

Figure 8. AC/DC Power Adapter for the 12VDC Version Converters

AT-FS20x Series Installation Guide

Key Features

The AT-FS201, AT-FS202, and AT-FS202SC/FS1 Bridging Media Converters have the following features:

 LEDs for unit and port status  Auto MDI/MDI-X  DIP switches for configuring the ports  Half- or full-duplex operation on both ports  RJ-45 twisted pair connector  Dual SC or Dual ST fiber optic connector  Data packet forwarding and filtering at full wire speed

(10 Mbps to 100 Mbps and 100 Mbps to 100 Mbps)

 Store and forward switching mode  Automatic address learning and aging  IEEE 802.3u compliant Auto-Negotiation  External AC/DC power adapter  For use on a desktop, in an AT-WLMT-010 wallmounting bracket or in

an AT-MCR12 chassis

Chapter 1: Overview

Status LEDs

Table 2 defines the LEDs for the AT-FS201, AT-FS202, and AT-FS202SC/FS1 Bridging Media Converters.

Table 2. Status LEDs

LED Color Description

PWR Green Power is applied to the unit.

AUTO NEG

100M Green

LNK/ ACT

FD/COL Green

Green

OFF

Green

Blinking

OFF

Blinking

Auto-negotiation on the twisted pair port is enabled.

Auto-negotiation on the twisted pair port is disabled.

The twisted pair port is operating at 100 Mbps.

The twisted pair port is operating at 10 Mbps.

A valid link has been established on the port.

Data is being received or transmitted on the port.

The converter is operating in full-duplex mode.

The converter is operating in half-duplex mode.

Collision are detected on the port.

AT-FS20x Series Installation Guide

Twisted Pair Port

The AT-FS201, AT-FS202, and AT-FS202SC/FS1 Bridging Media Converters have one 10Base-T/100Base-TX twisted pair port. The twisted pair port features a RJ-45 connector.

Port Speed

The twisted pair port is compliant with the 10Base-T and 100Base-TX standards and is capable of either 10 Mbps or 100 Mbps operation. You can set the port speed manually or, since the port is IEEE 802.3u AutoNegotiation compliant, you can let the converter set the port speed automatically. With Auto-Negotiation, the speed of the port is set automatically by the converter after it determines the speed of the endnode connected to the port. Auto-negotiation is designed to ensure that the port on the converter and the end-node are operating at the same speed and that they are communicating at the highest possible common speed of the devices.

Duplex Mode

Duplex mode refers to how an end-node receives and transmits data. If an end-node can receive or transmit data, but not both simultaneously, the end-node is operating in what is referred to as half-duplex mode. If an end-node can both receive and transmit data simultaneously, the endnode is said to be operating in full-duplex mode. Naturally, an end-node capable of operating in full-duplex can handle data much faster than an end-node that can only operate in half-duplex mode.

The twisted pair ports on the AT-FS201, AT-FS202, and AT-FS202SC/ FS1 Bridging Media Converters can operate in either half-or full-duplex mode. They are IEEE 802.3u-compliant and use Auto-Negotiation to set the duplex mode setting for you automatically.

For Auto-Negotiation to operate properly on a converter, the end-nodes connected to the converter should also use Auto-Negotiation. If an endnode does not have this feature and has a fixed duplex mode of fullduplex, the result will be a duplex mode mismatch between the end-node and a converter port. A port on the converter connected to an end-node with a fixed duplex mode of full-duplex will operate at only half-duplex. This results in the end node using full-duplex and the switch port using half-duplex. This can produce network performance problems. Should you encounter this situation, you must configure the port on the end-node to use Auto-Negotiation or, if it lacks that feature, to half-duplex.

Chapter 1: Overview

Auto MDI/MDI-X

An RJ-45 twisted pair port on a 10 Mbps or 100 Mbps Ethernet network device can have one of two possible wiring configurations: MDI or MDI-X. The RJ-45 port on a PC, router, or bridge is typically wired as MDI, while the twisted pair port on a converter or hub is usually MDI-X.

When the twisted pair port on the AT-FS201, AT-FS202, and AT-FS202SC/FS1 converters is set to Auto-Negotiation, the port features automatic MDI/MDI-X. The RJ-45 port automatically determines the configuration of the port on the end-node and then configures itself appropriately. This feature allows you to use either a straight-through or crossover cable when connecting an end-node to the twisted pair port.

When the port on the AT-FS201, AT-FS202, and AT-FS202SC/FS1 converter is not set to Auto-Negotiation, the port defaults to MDI-X. To connect to an end-node that has the same wiring configuration, such as MDI-X to MDI-X, you would use a crossover twisted pair cable. To connect to an end-node that has different port wiring configuration, such as MDI to MDI-X, you would use a straight-through cable.

AT-FS20x Series Installation Guide

Fiber Optic Port

The AT-FS201, AT-FS202, and AT-FS202SC/FS1 Bridging Media Converters have one 100Base-FX fiber optic port. The fiber optic port features either a dual SC or a dual ST connector, depending on the model.

Port Speed

The fiber optic port is compliant with the 100Base-FX standard and has a fixed operating speed of 100 Mbps. The end-node connected to the fiber optic port on the converter must also be able to operate at 100 Mbps.

Duplex Mode

The fiber optic port on the converter can operate in half- or full-duplex mode. You must set the duplex mode manually using the DIP switches on the back of the unit.

Chapter 1: Overview

Bridging Media Converter Performance

The bridging media converters perform at:

 148,800 pps for 100 Mbps and 14,880 pps for 10 Mbps for full wire

speed forwarding and filtering

 200 Mbps maximum throughput in 100 Mbps, full-duplex mode  20 Mbps maximum throughput in 10 Mbps, full-duplex mode  Storage for up to 512 MAC addresses  60 KBytes total packet buffer  Low latency 14.3 µs (64-byte packet, 100 Mbps full-duplex)

AT-FS20x Series Installation Guide

DIP Switches

The DIP switches are used to manually configure the operating characteristics of the ports, such as port speed, duplex mode, and AutoNegotiation.

For the 100Base-FX fiber optic port, you can manually set the duplex mode to either half- or full-duplex.

On the 10Base-T/100Base-TX twisted pair port, you can manually set the speed of the port to either 10 Mbps or 100 Mbps, set the duplex mode to either half- or full-duplex, and enable or disable Auto-Negotiation. Enabling Auto-Negotiation will automatically set the port’s speed and duplex mode.

Note

A change to the DIP switch setting does not take effect until after you reset the unit. To reset the unit, power the unit OFF then ON.

Chapter 1: Overview

MAC Address Table

Up to 512 MAC addresses can be stored in the converter’s MAC address table. The converter’s self-learning feature will learn all new addresses in real-time after power-up. If the source address of an incoming packet is not found in the MAC address table, the converter will update the table with the new address.

The converter also has an automatic address aging feature that will delete a source address from the table if it has not seen a frame from the end-node with that address within five minutes. This prevents the table from becoming filled with addresses of end-nodes that are no longer active.

The converter forwards all multicast, broadcast, and unlearned unicast packets when the MAC address table has exceeded its storage limit.

AT-FS20x Series Installation Guide

Store and Forward

The AT-FS201, AT-FS202, and AT-FS202SC/FS1 Bridging Media Converters support store and forward switching at Fast Ethernet full-wire speed in 100 Mbps, half- or full-duplex mode. Packets entering each port are stored in buffers. Once the full packet is received, the converter will forward or discard the packet, depending on its destination address and error status. This ensures that only error-free packets destined for another segment will be transferred across the converter, reducing network load. For example, if the packet entering from Port 1 is destined for an end-node on Port 2, the converter forwards the frame if the frame does not contain any errors. If the packet from Port 1 is destined for an end-node also connected to Port 1, the packet is discarded.

The converter will discard CRC errors, misaligned, runt, and underoversized packets. When the packet has dribble bits at the end, the converter will truncate to octet boundary and check for a good FCS before forwarding.

Network Topology

Figure 9 illustrates a topology using one AT-FS202 Bridging Media Converter to interconnect two small networks of stakable hubs.

 Network 1 has an AT-8026FC switch connected to the 100Base-FX

port on the AT-FS202 Converter.

 Network 2 has an AT-FS708 switch connected to the 10Base-T/

100Base-TX port on the AT-FS202 Converter.

X T

e s a

B 0

TI MODE

-T e s

MUL

B 0 1

-F

e s a

0 0 1

/ K N

T C

/C D F

RT 1 O P

BRIDGING MEDI

0 2

AT-F

AT-FS202

A CONVERTER IEEE 802.3/802.3U

R W

O T U

A / K

N L

G E

N T

1 S

S A L C

C U D

R P R

E S A L

/ D

0 0 1

L O C

2 T R

-X I

I/M

T U A

AT-FS708

AT-8026FC

Twisted Pair

Fiber Optic

Figure 9. Typical Configuration Using the AT-FS202 Bridging Media

939

Chapter 2 Installation

This chapter explains how to install the AT-FS201, AT-FS202, and AT-FS202SC/FS1 Bridging Media Converters. These converters can be installed on a desktop, in an AT-WLMT-010 wallmounting bracket, or in an AT-MCR12 chassis.

Verifying Package Contents

Make sure the following items are included in your package. If any item is missing or damaged, contact your Allied Telesyn sales representative for assistance.

 One AT-FS201, AT-FS202, or AT-FS202SC/FS1 Bridging Media

Converter

 Four protective feet (for desktop use only)  External AC/DC power supply (12VDC model only)  This installation guide  Warranty card

Note

For information on the power supplies used with the AT-FS201, AT-FS202, and AT-FS202SC/FS1 Bridging Media Converters, refer to “External Power Supply” on page 6.

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