Allied Telesis AT-EX1002 User manual

Gigabit Ethernet
Network Extender
AT-EX1002
◆
Installation
Guide
®
PN 613-50379-00 Rev A

Copyright 2002 Allied Telesyn, Inc.
960 Stewart Drive Suite B, Sunnyvale, CA 94085 USA
All rights reserved. No part of this publication may be reproduced without prior written permission from Allied Telesyn, Inc.
Microsoft is a registered trademark of Microsoft Corporation, Netscape Navigator is a registered trademark of Netscape
Communications 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.

3
Electrical Safety and Emission
Statement
Standards: This product meets the following standards.
RFI Emission FCC Class B, EN55022 Class B 1
Warning: In a domestic environment this product may cause radio interference in which case the user may be required to take
adequate measures. 2
Immunity EN55024 3
Electrical Safety UL 1950 (UL/cULus), EN60950 (TUV) 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 C 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.
U.S. Federal Communications Commission
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
This device may not cause harmful interference.
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 B digital device, pursuant to part 15 of the
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 the
instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will
not occur in a particular installation. If this equipment does 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 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.
Canadian Department of Communications
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.

4
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.

5
Table of Contents
Preface ......................................................................................................................................................................................................................6
Document Conventions ......................................................................................................................................................................................6
Where to Find Web-based Guides ...................................................................................................................................................................7
Contacting Allied Telesyn ................................................................................................................................................................................... 8
Sales or Corporate Information ................................................................................................................................................................8
Management Software Updates ...................................................................................................................................................................... 9
Chapter 1
AT-EX1002 Gigabit Ethernet Multimode Extender ...........................................................................................................................10
Gigabit Ethernet Technology and FDDI Technology ..............................................................................................................................11
Key Features ...........................................................................................................................................................................................................13
1000Base-X Port ....................................................................................................................................................................................................14
1000Base-SX Port .................................................................................................................................................................................................14
Status LEDs .............................................................................................................................................................................................................14
External AC/DC Power Adapter ......................................................................................................................................................................15
Chapter 2
Installing the AT-EX1002 Unit .....................................................................................................................................................................16
Verifying the Package Contents .....................................................................................................................................................................16
Planning the Installation ...................................................................................................................................................................................17
Selecting a Site ......................................................................................................................................................................................................18
Reviewing Safety Guidelines ............................................................................................................................................................................19
Installing the Unit .................................................................................................................................................................................................20
Warranty Registration .........................................................................................................................................................................................24
Chapter 3
Troubleshooting ................................................................................................................................................................................................25
Appendix A
Technical Specifications .................................................................................................................................................................................27
Appendix B
Translated Electrical Safety and Emission Information ..................................................................................................................29

6
Preface
This guide contains instructions on how to install the AT-EX1002 Gigabit
Ethernet Multimode Extender.
Document Conventions
This document uses the following conventions:
Note
Notes provide additional information.
Warning
Warnings inform you that performing or omitting a specific action
may result in bodily injury.
Caution
Cautions inform you that performing or omitting a specific action
may result in equipment damage or loss of data.

AT-EX1002 Network Extender Installation Guide
7
Where to Find Web-based Guides
The installation and user guides for all Allied Telesyn products are
available in Portable Document Format (PDF) from on our web site at
www.alliedtelesyn.com. You can view the documents on-line or
download them onto a local workstation or server.

Contacting Allied Telesyn
8
Contacting Allied Telesyn
To contact Technical Support by phone, find your country or region in
the table below.
You can also contact Technical Support on-line at
http://kb.alliedtelesyn.com.
Sales or
Corporate
Information
Allied Telesyn, Inc.
19800 North Creek Parkway,
Suite 200
Bothell, WA 98011
Tel:[phone]
Fax:[phone]
United States, Canada, Mexico, Central
America, South America
Tel: [phone] (option 4)
Germany, Switzerland, Austria, Eastern
Europe
Tel: [phone]
United Kingdom, Denmark, Norway,
Sweden, Finland
([phone]
France, Belgium, Luxembourg, The
Netherlands, Middle East, Africa
([phone]
Singapore, Taiwan, Thailand, Malaysia,
Indonesia, Korea, Philippines, China,
India, Hong Kong
Tel: [phone]
Australia
Tel:[phone]
Italy, Spain, Portugal, Greece, Turkey,
Israel
Tel: [phone]
Japan
Tel: [phone]

AT-EX1002 Network Extender Installation Guide
9
Management Software Updates
New releases of management software for our managed products are
available from our web site at www.alliedtelesyn.com and our FTP server
at ftp.alliedtelesyn.com. To use the FTP server, enter ‘anonymous’ for the
user name when you log in and your e-mail address for the password.

10
Chapter 1
AT-EX1002 Gigabit Ethernet
Multimode Extender
The AT-EX1002 Gigabit Ethernet Multimode Extender extends the
distance of your Gigabit Ethernet network up to 2 kilometers (1.25 miles)
over multimode fiber optic cable.
The unit features two fiber optic ports, an 1000Base-SX port and an
1000Base-X port. The 1000Base-SX port has a maximum operating
distance of 500 meters (1,666 feet) while the 1000Base-X port has a
maximum operating distance of 2 kilometers (1.25 miles). Both ports
operate in full-duplex mode and use multimode fiber optic cable.
The unit can be used on a table or in an AT-MCR12, AT-TRAY1, or
AT-TRAY4 chassis. The device is easy to install and does not require any
software configuration or management.
Figure 1 AT-EX1002 Gigabit Ethernet Multimode Extender
MULTI MODE/SINGLE MODE MULTI MODE
LNK LNK
PWR
TX RX
GIGABIT ETHERNET MULTIMODE EXTENDER
CLASS 1
LASER LIGHT
DO NOT STARE
INTO BEAM
1000Base-X
TX RX
1000Base-SX
AT-EX1002
Allied Telesyn

AT-EX1002 Network Extender Installation Guide
11
Gigabit Ethernet Technology and FDDI Technology
Because of its high-speed and fault-tolerant features, fiber distributed
data interface (FDDI) has frequently been used to build backbone
networks. However, the growth of new applications that require
extremely high rates of throughput, greater than that allowed by FDDI,
have emerged and, in many cases, have exceeded the capabilities of
FDDI. Examples of high demand network applications include streaming
audio and video content.
The solution for many networks is to migrate from FDDI to Gigabit
Ethernet, which offers the same resiliency as FDDI but with greater
bandwidth capability. However, one of the principal disadvantages to
migrating from FDDI to Gigabit Ethernet has been the cost of replacing
the legacy multimode fiber optic cabling of the FDDI topology to one
designed for Gigabit Ethernet. Currently, Gigabit Ethernet transmission
on multimode fiber is limited to a maximum of 550 meters (1830 feet) on
50/125 micron fiber and 275 meters (916 feet) on 62.5/125 micron. In
network configurations requiring greater distances, network
administrators have been confronted with the choice of either retaining
FDDI and its lower bandwidth or replacing the existing multimode fiber
cable with single-mode cable, usually at great cost.
The AT-EX1002 Gigabit Ethernet Multimode Extender greatly simplifies
the migration by allowing you to install Gigabit Ethernet while
maintaining the existing multimode fiber cable. With this unit, you can
extend the distance of Gigabit Ethernet transmission over multimode
fiber cable from the current limitation of 550 meters (1830 feet) to 2
kilometers (1.24 miles). In many situations, this eliminates the need of
replacing the existing multimode fiber cable by allowing you to use the
legacy cable system.

12
Figure 2 illustrates a network that uses two AT-EX1002 Gigabit
Multimode Extenders to interconnect two AT-8024GB Fast Ethernet
Switches. (Each switch has an 1000Base-SX GBIC module installed in a
GBIC expansion slot.)
Figure 2 Example Topology
Note
The AT-EX1002 unit must be used in pairs. The 1000Base-X port on
the unit must be connected to an 1000Base-X port on another
AT-EX1002 unit. You cannot connect the 1000Base-X port to any
other network device.
MULTI MODE/SINGLE MODE MULTI MODE
LNK LNK
PWR
TX RX
GIGABIT ETHERNET MULTIMODE EXTENDER
CLASS 1
LASER LIGHT
DO NOT STARE
INTO BEAM
1000Base-X
TX RX
1000Base-SX
AT-EX1002
Allied Telesyn
MULTI MODE/SINGLE MODE MULTI MODE
LNK LNK
PWR
TX RX
GIGABIT ETHERNET MULTIMODE EXTENDER
CLASS 1
LASER LIGHT
DO NOT STARE
INTO BEAM
1000Base-X
TX RX
1000Base-SX
AT-EX1002
Allied Telesyn
Link
Mode
Link
Mode
100
FULL
ACT
MODE
COL
LINK
MODE
25
LINK
MODE
FAULT
MASTER
PWR
AT-8024GB
10Base-T/ 100Base-TXFast Ethernet Switch RS-232 TERMINAL PORT
CLASS1
LASERPRODUCT
DONOT STARE
INTOBEAM
TX TXRX RX
26
Link
Mode
Link
Mode
100
FULL
ACT
MODE
COL
LINK
MODE
25
LINK
MODE
FAULT
MASTER
PWR
AT-8024GB
10Base-T/ 100Base-TXFast Ethernet Switch RS-232 TERMINAL PORT
CLASS1
LASERPRODUCT
DONOT STARE
INTOBEAM
TX TXRX RX
26
AT-8024GB Switch
AT-8024GB Switch
AT-EX1002 Gigabit
2 km
500 m
Multimode Fiber Cable
Multimode Extender
AT-EX1002 Gigabit
Multimode Extender
Multimode Fiber Cable
500 m
Multimode Fiber Cable
with 1000Base-SX
GBIC Module
with 1000Base-SX
GBIC Module

AT-EX1002 Network Extender Installation Guide
13
Key Features
The AT-EX1002 unit has the following key features:
❑One 1000Base-X port with a maximum operating distance of 2
kilometers (1.25 miles) using multimode fiber optic cabling
❑One 1000Base-SX port with a maximum operating distance of 500
meters (1,666 feet) using multimode fiber optic cabling
❑Full-duplex operation
❑LEDs for power and port status
❑External AC/DC power adapter
❑Standard, compact size for use on a table or in an AT-MCR12,
TRAY1 or TRAY4 chassis

14
1000Base-X Port
The 1000Base-X fiber optic port has a dual SC connector and uses
multimode fiber optic cable. The port has a maximum operating
distance of 2 kilometers (1.25 miles) using either 50/125 micron or
62.5/125 micron multimode fiber cable.
Note
This port must be connected to an 1000Base-X port on another
AT-EX1002 unit. You cannot connect this port to any other
networking device.
1000Base-SX Port
The 1000Base-SX port has an SC connector and uses multimode fiber
optic cabling. The port has a maximum distance of 220 meters (730 feet)
using 62.5/125 micron multimode fiber optic cable and 500 meters
(1,666 feet) using 50/125 micron multimode fiber optic cable. The port
operates in full-duplex operation only. The networking device that you
connect to this port must operate at 1000 Mbps in full duplex mode.
Status LEDs
Table 1 defines the unit’s LEDs.
Table 1 Status LEDs
LED State Color Description
PWR ON Green Power is applied to the unit.
LNK ON Green The port has established a valid link
with the end node.

AT-EX1002 Network Extender Installation Guide
15
External AC/DC Power Adapter
The media converter comes with an external AC-to-DC power adapter
(see Figure 3). The power adapter supplies 12 volts 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 required for the media converter is
12 V DC, 500 mA.
Note
The power adapter is not used if you install the media converter in
an AT-MCR12 chassis.
Figure 3 External AC/DC Power Adapter (North American version)

16
Chapter 2
Installing the AT-EX1002 Unit
This chapter explains how to install an AT-EX1002 device.
Verifying the Package Contents
Make sure the following items are included in your AT-EX1002 package.
If any item is missing or damaged, contact your Allied Telesyn sales
representative for assistance.
❑One AT-EX1002 Gigabit Ethernet Multimode Extender
❑Four protective feet (for desktop use only)
❑External AC/DC power adapter (North America, Continental
Europe, United Kingdom, or Australia)
❑Documentation CD
❑Warranty card

AT-EX1002 Network Extender Installation Guide
17
Planning the Installation
Be sure to observe the following guidelines when planning the
installation of your AT-EX1002 unit.
❑The 1000Base-X port must be connected to an 1000Base-X port
on another AT-EX1002 unit.
❑The end-node connected to the 1000Base-SX port on the
AT-EX1002 unit must operate at 1000 Mbps in full-duplex mode.
❑The AT-EX1002 unit can be installed on a desktop or in an
AT-MCR12, AT-TRAY1, or AT-TRAY4 chassis. (An AT-MCR12 chassis
can support a full complement of 12 AT-EX1002 units.)
❑Refer to Table 1 for the fiber optic cabling specifications.
Table 1 Fiber Optic Cabling Specifications
Port Cable Type Maximum
Distance
1000Base-X 62.5/12 5µm multimode
fiber or 50/12 5µm
multimode fiber
2 km (1.25 mi.)
1000Base-SX 62.5/125 µm multimode
fiber
220 m (730 ft.)
50/125 µm multimode
fiber
500 m (1,666 ft.)

Selecting a Site
18
Selecting a Site
Be sure to observe the following requirements when choosing a site for
your AT-EX1002 unit.
❑If you are installing the device on a table, be sure that the table is
level and secure.
❑The power outlet for the device should be located near the unit
and should be easily accessible.
❑The site should provide for easy access to the ports on the front of
the device. This will make it easy for you to connect and
disconnect cables, as well as view the switch’s LEDs.
❑To allow proper cooling of the device, air flow around the unit
should not be restricted.
❑Do not place objects on top of the device.
❑Do not expose the device to moisture or water.
❑Make sure that the site is a dust-free environment.
❑Use dedicated power circuits or power conditioners to supply
reliable electrical power to the network devices.

AT-EX1002 Network Extender Installation Guide
19
Reviewing Safety Guidelines
Please review the following safety guidelines before you begin to install
the device.
Warning
Class 1 laser device. 6
Warning
Do not stare into the laser beam. 7
Warning
Lightning Danger: Do not work on this equipment or cables
during periods of lightning activity. 8
Caution
Power cord is used as a disconnection device: To de-energize
equipment, disconnect the power cord. 9
Caution
Pluggable Equipment: The socket outlet should be installed near
the equipment and should be easily accessible. 10
Caution
Power to the hub must be sourced only from the adapter. 11
Caution
Air vents: The air vents must not be blocked on the unit and must
have free access to the room ambient air for cooling. 12
Caution
Operating Temperature: This product is designed for a maximum
ambient temperature of 40°C. 13
Caution
All Countries: Install this product in accordance with local and
National Electric Codes. 14

Installing the Unit
20
Installing the Unit
To install the unit, perform the following procedure:
1. Remove all equipment from the shipping package and store the
packaging material in a safe place.
Note
Do not remove the dust covers from the fiber optic ports on the unit
until you are ready to connect the fiber optic cables. Dust
contamination can adversely impact the operating performance of
the ports and the network extender.
2. If you are installing the unit on a desktop, attach the four rubber feet
to each corner of the base of the unit. (Do not attach the rubber feet
if you are installing the unit in an AT-MCR12, AT-TRAY1, or AT-TRAY4
chassis.)
Figure 1 Attaching the Protective Feet
Note
To install the network extender in an AT-MCR12, AT-TRAY1 or TRAY4
chassis, refer to the instructions included with the chassis.
3. Place the media converter on a level, secure surface (such as a desk or
table), leaving free space around the unit for ventilation.
MULTI MODE/SINGLE MODE MULTI MODE
LNK LNK
PWR
TX RX
GIGABIT ETHERNET MULTIMODE EXTENDER
CLASS 1
LASER LIGHT
DO NOT STARE
INTO BEAM
1000Base-X
TX RX
1000Base-SX
AT-EX1002
Allied Telesyn