Allied Telesis AT-MC14 Guida d'installazione

AT-MC13

AT-MC14

AT-MC15

AT-MC16

Ethernet Media Converters

Installation Guide

PN 613-10724-00 Rev C

Copyright  2001 Allied Telesyn International Corp.

960 Stewart Drive Suite B, Sunnyvale CA 94086 USA

permission fro

Allied Telesyn International Corp.

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 International Corp. 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 International Corp. 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

International Corp. International Corp. has been advised of, known, or should have

known, the possibility of such damages.

iii

Electrical Safety and Emission Compliance

Statement

Standards: This product meets the following standards.

U.S. Federal Communications Commission

DECLARATION OF CONFORMITY

Manufacture Name: Allied Telesyn International Corp.

Manufacture Address: 960 Stewart Drive, Suite B

Sunnyvale, CA 94085 USA

Manufacture Telephone: 408-730-0950

Declares that the product: Ethernet Media Converters

Model Numbers: AT-MC13, AT-MC14, AT-MC15, AT-MC16

This product complies with FCC Part 15B, Class B Limits:

This device complies with part 15 of the FCC Rules. Operation is subject

to the following two conditions: (1) This device must not cause harmful

interference, and (2) this device must accept any interference received,

including interference that may cause undesired operation.

RADIATED ENERGY

Note: This equipment has been tested and found to comply with the

limits for a Class B digital device pursuant to Part 15 of FCC Rules.

These limits are designed to provide reasonable protection against

harmful interference in a residential installation. This equipment

generates, uses and can radiate radio frequency energy and, if not

installed and used in accordance with instructions, may cause harmful

interference to radio or television reception, which can be determined by

turning the equipment off and on. The user is encouraged to try to correct

the interference by one or more of the following measures:

- Reorient or relocate the receiving antenna.

- Increase the separation between the equipment and the receiver.

- Connect the equipment into an outlet on a circuit different from that to

which the receiver is connected.

- Consult the dealer or an experienced radio/TV technician for help.

Changes and modifications not expressly approved by the manufacturer

or registrant of this equipment can void your authority to operate this

equipment under Federal Communications Commission rules.

Industry Canada

This Class B digital apparatus meets all requirements of the Canadian

Interference-Causing Equipment Regulations.

Cet appareil numérique de la classe B respecte toutes les exigences du

Règlement sur le matériel brouilleur du Canada.

iv

Warning: In a domestic environment this product may cause radio

interference in which case the user may be required to take adequate

measures.

RFI Emission EN55022 Class B

$ 1

Immunity EN55024 $ 2

Warning (AT-MC13, AT-MC14, AT-MC16): This product requires shielded cables to

comply with emission and immunity standards. If it is used with unshielded

cables, the user may be required to take measures to correct the interference

problem at their own expense.

$ 3

Electrical Safety TUV-EN60950, UL1950, CSA 950

$ 4

Laser EN60825 $ 5

Important: Appendix B contains translated safety statements for installing

this equipment. When you see the

$, go to Appendix B for the translated

safety statement in your language.

Wichtig: Anhang B enthält übersetzte Sicherheitshinweise für die

Installation dieses Geräts. Wenn Sie

$ sehen, schlagen Sie in Anhang B den

übersetzten Sicherheitshinweis in Ihrer Sprache nach.

Vigtigt: Tillæg B indeholder oversatte sikkerhedsadvarsler, der vedrører

installation af dette udstyr. Når De ser symbolet

$, skal De slå op i tillæg B

og finde de oversatte sikkerhedsadvarsler i Deres eget sprog.

Belangrijk: Appendix B bevat vertaalde veiligheidsopmerkingen voor het

installeren van deze apparatuur. Wanneer u de

$ ziet, raadpleeg Appendix

B voor vertaalde veiligheidsinstructies in uw taal.

Important: L'annexe B contient les instructions de sécurité relatives à

l'installation de cet équipement. Lorsque vous voyez le symbole

$, reportez-

vous à l'annexe B pour consulter la traduction de ces instructions dans votre

langue.

Tärkeää: Liite B sisältää tämän laitteen asentamiseen liittyvät käännetyt

turvaohjeet. Kun näet

$-symbolin, katso käännettyä turvaohjetta liitteestä

B.

Importante: l’Appendice B contiene avvisi di sicurezza tradotti per

l’installazione di questa apparecchiatura. Il simbolo

$, indica di consultare

l’Appendice B per l’avviso di sicurezza nella propria lingua.

Viktig: Tillegg B inneholder oversatt sikkerhetsinformasjon for installering

av dette utstyret. Når du ser

$, åpner du til Tillegg B for å finne den

oversatte sikkerhetsinformasjonen på ønsket språk.

Importante: O Anexo B contém advertências de segurança traduzidas para

instalar este equipamento. Quando vir o símbolo

$, leia a advertência de

segurança traduzida no seu idioma no Anexo B.

Importante: El Apéndice B contiene mensajes de seguridad traducidos para

la instalación de este equipo. Cuando vea el símbolo

$, vaya al Apéndice B

para ver el mensaje de seguridad traducido a su idioma.

Obs! Bilaga B innehåller översatta säkerhetsmeddelanden avseende

installationen av denna utrustning. När du ser

$, skall du gå till Bilaga B

för att läsa det översatta säkerhetsmeddelandet på ditt språk.

v

Table of Contents

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

Welcome to Allied Telesyn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

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

Document Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

Contacting Allied Telesyn Technical Support . . . . . . . . . . . . . . . . . . . . . . . . viii

Online Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii

Telephone and Fax Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii

Technical Support E-mail Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ix

Returning Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

FTP Server. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

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

Tell Us What You Think . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x

Chapter 1

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

Key Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Status LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

MDI/MDI-X Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Fiber Link Test Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Auto-negotiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

MissingLink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Terminator Switch (AT-MC15 Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

External AC/DC Power Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Network Topologies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Standalone Topology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Back-to-Back Topology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Chapter 2

Installing the Media Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Verifying Package Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Planning the Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Reviewing Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Installing the Media Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Warranty Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

vi

Chapter 3

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Appendix A

Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Physical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Electrical Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Agency Certifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Appendix B

Translated Safety and Emission Information. . . . . . . . . . . . . . . . . . . . . 25

Appendix C

Technical Support Fax Order Form . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Incident Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

vii

Welcome to Allied Telesyn

This guide contains instructions on how to install the AT-MC1x Series

Ethernet Media Converters.

Where to Find Web-based Guides

The Allied Telesyn web site at www.alliedtelesyn.com provides you with an

easy way to access the most recent documentation and technical information

for all of our products. For product guides, you can go directly to the following

web page: www.alliedtelesyn.com/support/prd_libs.htm.

Document Conventions

This guide uses several conventions that you should become familiar with first

before installing the product.

Note

A note provides additional information.

Caution

A caution indicates that performing or omitting a specific action may

result in equipment damage or loss of data.

Warning

A warning indicates that performing or omitting a specific action may

result in bodily injury.

Welcome to Allied Telesyn

viii

Contacting Allied Telesyn Technical Support

You can contact Allied Teleysn technical support online or by telephone, fax, or

e-mail.

Online Support

You can request technical support online by filling out the Online Technical

Support Form at www.alliedtelesyn.com/support/supportf.asp or by

accessing the Technical Support Knowledge Base from Allied Telesyn’s North

American web site. You can use the Knowledge Base to submit questions to our

technical support staff and review answers to previously asked questions.

Telephone and Fax Support

For Technical Support via fax, please fill out the “Technical Support Fax

Order” on page 35 and send it to the appropriate location listed below.

Americas

United States, Canada, Mexico,

Central America, South America

Tel: 1 (800) 428-4835, option 4

Fax: 1 (425) 481-3790

Germany

Germany, Switzerland, Austria, Eastern

Europe

Tel: (+49) 30-435-900-126

Fax: (+49) 30-435-70-650

Asia

Singapore, Taiwan, Thailand, Malaysia,

Indonesia, Korea, Philippines, China,

India, Hong Kong

Tel: (+65) 3815-612

Fax: (+65) 3833-830

Italy

Italy, Spain, Portugal, Greece, Turkey,

Israe

l

Tel: (+39) 02-41-30-41

Fax: (+39) 02-41-30-42-00

Australia

Tel: 1 (800) 000-880

Fax: (+61) 2-9438-4966

Japan

Tel: (+81) 3-3443-5640

Fax: (+81) 3-3443-2443

France

France, Belgium, Luxembourg,

The Netherlands, Middle East, Africa

Tel: (+33) 0-1-60-92-15-25

Fax: (+33) 0-1-69-28-37-49

United Kingdom

United Kingdom, Denmark, Norway,

Sweden, Finland

Tel: (+0044) 1235-442500

Fax: (+44) 1-235-442680

AT-MC1x Series Installation Guide

ix

Technical Support E-mail Addresses

United States and Canada

TS1@alliedtelesyn.com

Latin America, Mexico, Puerto Rico, Caribbean, and Virgin Islands

latin_america@alliedtelesyn.com

Europe

support_europe@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 a RMA

number will be returned to the sender at the sender’s expense.

To obtain an RMA number, contact Allied Telesyn’s Technical Support at one

of the following locations:

FTP Server

If you need management software for an Allied Telesyn managed device and

you know the file name of the software, you can download the software by

connecting directly to our FTP server at ftp.alliedtelesyn.com. At login,

enter ‘anonymous’ as the user name and your e-mail address for the password.

North America

Toll-free: 1-800-428-4835, option 4

Fax: 1-425-481-3790

Europe, Africa, and the Middle East

Tel: +44-1793-501401

Fax: +44-1793-431099

Latin America, the Caribbean, and

Virgin Islands

Tel: international code + 425-481-3852

Fax: international code + 425-481-3895

Puerto Rico

Tel: 1-800-424-5012, ext 3852 or

1-800-424-4284, ext 385

2

Mexico

Toll-free: 800-424-5012, ext 3852

Fax: international code + 425-481-3895

Asia and Southeast Asia

Tel: +65-381-5612

Fax: +65-383-3830

Australia

Toll-free: 1-800-000-880

Fax: +61-2-9438-4966

New Zealand

Toll-free: 0800-45-5782

Welcome to Allied Telesyn

x

For Sales or Corporate Information

You can contact Allied Telesyn for sales or corporate information at one of the

locations below:

Allied Teleyn International Corp.

19800 North Creek Parkway, Suite 200

Bothell, WA 98011

Tel: 1 (425) 487-8880

Fax: 1 (425) 489-9191

Allied Telesyn International Corp.

960 Stewart Drive, Suite B

Sunnyvale, CA 94085

Tel: 1 (800) 424-4284 (US and Canada)

Fax: 1 (408) 736-0100

Tell Us What You Think

If you have any comments or suggestions on how we might improve this or

other Allied Telesyn documents, please fill out the Send Us Feedback Form at

www.alliedtelesyn.com/contact/feedbackf.asp.

1

Chapter 1

Overview

The AT-MC1x Series Ethernet Media Converters includes the following

models:

These media converters are designed to extend the distance of your network by

interconnecting twisted pair cabling to single-mode or multimode fiber optic

cabling or thinnet cabling. The AT-MC1x Series Media Converters allow you to

interconnect LAN devices over large distances.

The AT-MC13, AT-MC14, and AT-MC16 media converters feature a 10Base-T

twisted pair port and a 10Base-F fiber optic port. The twisted pair port has an

RJ-45 connector and a maximum operating distance of 100 meters (328 feet).

The fiber optic port has an ST or SC connector and a maximum operating

distance of 2 kilometers (1.2 miles) to 100 kilometers (62 miles), depending on

the model. These media converters operate at 10 Mbps and feature half- and

full-duplex operation.

The AT-MC15 features a 10Base-T twisted pair port and a 10Base2 thinnet

port. The twisted pair port has an RJ-45 connector and a maximum operating

distance of 100 meters (328 feet). The thinnet port has a BNC-type connector

and a maximum operating distance of 185 meters (606 feet). The AT-MC15

operates at 10 Mbps and features half-duplex operation.

The AT-MC1x Series Media Converters can be used on a desktop or in an

AT-MCR12 chassis. These media converters are easy to install and do not

require software configuration or management.

q AT-MC13 q AT-MC15

q AT-MC14 q AT-MC16

2

Figure 1 illustrates an AT-MC1x Series Media Converter.

Figure 1 AT-MC1x Series Media Converter (AT-MC13 model)

Table 1 lists the maximum operating distances for the AT-MC13, AT-MC14,

and the AT-MC16 media converters.

Table 1 Maximum Operating Distances

Table 2 lists the maximum operating distances for the AT-MC15 media

converter.

Table 2 Maximum Operating Distances

Model

10Base-F 10Base-T

Connector

Maximum Operating

Distance

1

1. Maximum operating distance may be less depending on the duplex mode of the end stations and the type of fiber

optic cabling used with the port.

Connector

Maximum Operating

Distance

AT-MC13 ST 2 km (1.2 mi) RJ-45 100 m (328 ft)

AT-MC14 SC 2 km (1.2 mi) RJ-45 100 m (328 ft)

AT-MC16 ST 15 km (9.3 mi) RJ-45 100 m (328 ft)

Model

10Base2 10Base-T

Connector

Maximum Operating

Distance

Connector

Maximum Operating

Distance

AT-MC15 BNC 185 m (606 ft) RJ-45 100 m (328 ft)

10Base-F

REC

LNK

TX RX

MC13 ETHERNET MEDIA CONVERTER

MDI MDI-X

10Base-T

REC

LNK

PWR

NML

FIBER

LINK TEST

AT-MC1x Series Installation Guide

3

Key Features

The media converters have the following key features:

q LEDs for unit and port status

q Full- or half-duplex mode operation (except AT-MC15)

q Half-duplex mode operation (AT-MC15 only)

q MissingLink notifies end-nodes of link failures (fiber models only)

q Link Test feature performs a link test on the media converter’s fiber

port

q MDI/MDI-X switch that eliminates the need for a crossover cable

q Internal termination on the BNC port (AT-MC15 only)

q External AC/DC power adapter

q Standard, compact size for desktop use or in an AT-MCR12 rackmount

chassis

Status LEDs

Table 3 lists the status LEDs for the AT-MC1x Series Media Converters.

Table 3 Status LEDs for the Media Converters

LED Color Description

All Models

PWR Green Power is applied to the media converter.

LNK Green A link has been established on the port.

REC Green Data is being received.

AT-MC13, AT-MC14 and AT-MC16 only

NML Green

OFF

The MissingLink feature is enabled and the media converter is

functioning in normal operating mode.

The MissingLink feature is disabled and the media converter is

performing a link test.

4

MDI/MDI-X Switch

An RJ-45 port on a 10 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 switch or

hub is usually MDI-X.

To connect two 10 Mbps network devices together that have dissimilar port

wiring configurations, such as MDI to MDI-X, you use a straight-through cable.

To connect two network devices that have an RJ-45 port with the same wiring

configuration, such as MDI to MDI, you use a crossover cable.

The RJ-45 port on the media converters feature an MDI/MDI-X button. You can

use this button to configure the twisted pair port on the media converter as

either MDI or MDI-X, thus eliminating the need for a crossover cable

regardless of the type of network device you are connecting to the unit.

Table 4 lists the pinouts of the RJ-45 ports for both MDI and MDI-X wiring

configurations.

Table 4 RJ-45 Pinout

AT-MC15 Only

TX Green Data is being transmitted on the BNC port.

RX Green Data is being received on the BNC port.

ONLINE Green The BNC port is connected to an active 10Base2 segment.

COL Green The BNC port is sensing a collision signal.

MDI Pinout MDI-X Pinout

Pin Signal Pin Signal

1 TD + 1 RD+

2TD-2RD-

3 RD+ 3 TD+

6 RD- 6 TD-

4, 5, 7, 8 N/A 4, 5, 7, 8 N/A

Table 3 Status LEDs for the Media Converters (Continued)

LED Color Description

AT-MC1x Series Installation Guide

5

Fiber Link Test Switch

The AT-MC13, AT-MC14, and AT-MC16 media converters feature a Fiber Link

Test switch. This switch sets the fiber port into an artificial link transmission

state for testing without the twisted pair port being connected. When the Fiber

Link Test switch is in the DOWN (default) position, the NML LED is green

indicating that the media converter is functioning normally. For a link test, set

the switch in the UP position. Be sure to set the switch back to the default

position after performing a link test. If the switch is left in the UP position, the

media converter will not function properly. Refer to Figure 2 for the location of

the Fiber Link Test switch.

Figure 2 Fiber Link Test Switch

10Base-F

REC

LNK

TX RX

MC13 ETHERNET MEDIA CONVERTER

MDI MDI-X

10Base-T

REC

LNK

PWR

NML

FIBER

LINK TEST

FIBER

LINK TEST

6

Auto-negotiation

Auto-negotiation determines the duplex mode of the ports. The duplex mode

refers to the manner in which an end-node sends and receives data on the

network. Depending on its capabilities, an end-node can operate in either half-

or full-duplex mode. An end-node operating in half-duplex can either send or

receive data, but not both at the same time. However, an end-node operating

in full-duplex can send and receive data simultaneously. The best network

performance is achieved when an end-node can operate in full-duplex mode.

The AT-MC13, AT-MC14, and AT-MC16 media converters can operate in

either full- or half-duplex mode. However, it is important to note that the end-

nodes connected to these media converters must operate in the same duplex

mode to avoid a duplex mode mismatch which can result in poor network

performance.

Figure 1 shows an example of a duplex mode mismatch. A repeater (Unit 1),

capable of operating in half-duplex mode only, is connected to the 10Base-F

port on the media converter, while a switch (Unit 2), capable of either half- or

full-duplex mode, is connected to the 10Base-T port on the media converter.

Figure 1 Example of a Duplex Mode Mismatch

In attempting to auto-negotiate with Unit 1, the media converter will

determine that the repeater is capable of half-duplex only and will set the port

connected to the unit appropriately. In auto-negotiating with Unit 2, the

media converter will determine that the switch can manage full-duplex and

will set the port connected to the switch to full-duplex. The result is a duplex

mode mismatch, with one unit operating in half-duplex and the other unit

operating in full-duplex. You can resolve the duplex mode mismatch by

manually configuring Unit 2, if possible, so that the port connected to the

media converter is set to half-duplex.

Unit 1

Unit 2

100Base-TX Repeater

Media Converter 100Base-TX Switch

REC

LNK

TX RX

MDI MDI-X

FIBER

LINK TEST

10Base-T

REC

LNK

PWR

NML

10Base-F

AT-MC1x Series Installation Guide

7

MissingLink

The MissingLink feature enables the ports on the media converter to pass the

“Link” status of their connections to each other. When the media converter

detects a problem with one of the ports, such as the loss of connection to a end-

node, the media converter shuts down the connection to the other port, thus

notifying the end-node that the connection has been lost.

For example, if the network twisted pair cable on an AT-MC14 were to fail, the

module would respond by dropping the link on the fiber optic port. In this way,

the AT-MC14 notifies the end-node connected to the fiber optic port that the

connection on the twisted pair port has been lost. If the failure had started with

the fiber optic cabling, the unit would drop the link to the twisted pair port.

The value to this type of network monitoring and fault notification is that some

hubs and switches can be configured to take a specific action in the event of the

loss of connection on a port. In some cases, the unit can be configured to seek a

redundant path to a disconnected end-node or send out a trap to a network

management station, alerting the network administrator of the problem.

Note

MissingLink is disabled when you perform a link test with the Fiber

Link Test switch. Consequently, to ensure that MissingLink is enabled

on the media converter, always set the Fiber Link Test switch to the

DOWN position during normal network operations.

8

Terminator Switch (AT-MC15 Only)

The Terminator switch on the AT-MC15 media converter offers 50 Ω

termination without the use of a T-connector and 50 Ω barrel terminator. Only

end-point nodes need 50 Ω termination. Internal nodes on a thinnet segment

should be connected to the cable through standard 10Base2 T-connectors. Refer

to Figure 3 for the location of the Terminator switch.

Figure 3 Terminator Switch

10Base2

MC15 ETHERNET MEDIA CONVERTER

MDI MDI-X

10Base-T

TX

RX

ONLINE

COL

RX

TX

PWR

LNK

TERMINATOR

O

F

O

N

TERMINATOR

O

F

O

N

AT-MC1x Series Installation Guide

9

External AC/DC Power Adapter

An external AC/DC power adapter is included with the media converter for

desktop operation (see Figure 4). The power adapter supplies 12 V DC to the

media converter. Allied Telesyn supplies an approved safety compliant AC

power adapter for the 120 and 240 V AC versions with an unregulated output

of 12 V DC at 1 A. The power requirement for the AT-MC13, AT-MC14, and

AT-MC16 media converters is 12 V DC, 500 mA. The power requirement for the

AT-MC15 is 12 V DC, 300 mA

Note

The power adapter is not used if you install the media converter in an

AT-MCR12 chassis.

Figure 4 External AC/DC Power Adapter (North American Version)

10

Network Topologies

The AT-MC1x Series Media Converters can be used in two different topologies:

standalone and back-to-back. Both types of topologies are described below.

Standalone Topology

A standalone topology uses one media converter between the end-nodes. Figure

5 illustrates a standalone topology that uses an AT-MC13 media converter to

connect two switches.

Figure 5 Standalone Topology

STATUS

RESET

FAULT

RPS

PWR

10BASE-T / 100BASE-TX

FAST ETHERNET SWITCH

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

10BASE-T / 100BASE-TX

1X 3X 5X 7X

2X 4X 6X 8X

9X 11X 13X 15X

10X 12X 14X 16X

17X 19X 21X 23X

18X 20X 22X 24X

A

B

RS-232

TERMINAL PORT

100M LINK / ACTIVITY 10M LINK / ACTIVITY

HALF DUP/

COL

FULL DUP

PORT ACTIVITY

L/A

D/C

L/A

D/C

10Base-F

REC

LNK

TX RX

MC13 ETHERNET MEDIA CONVERTER

MDI MDI-X

10Base-T

REC

LNK

PWR

NML

FIBER

LINK TEST

AT-MC13

Fiber Optic

Twisted Pair

AT-8224XL Switch

10Base-F Fiber Optic Switch

2 km (1.2 mi)

100 m (328 ft)

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Allied Telesis AT-MC14 Guida d'installazione

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