Allied Telesis AT-EX1001SC/GM1 User manual

AT-EX1001SC/GM1
Gigabit Ethernet Multimode Extender
Installation Guide
PN 613-10857-00 Rev A

Copyright  2000 Allied Telesyn International, Corp.
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 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. has been advised of, known, or should have known, the possibility of such
damages.

iii
Electrical Safety and Emission Statement
Standards: This product meets the following standards.
RFI Emission EN55022 Class A !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 EN50082-1, UL 1950 !3
Electrical Safety EN60950 !4
Laser EN60825 !5
Important: Appendix A contains translated safety statements for installing this equipment. When you see
the !, go to Appendix A for the translated safety statement in your language.
Wichtig: Anhang A enthält übersetzte Sicherheitshinweise für die Installation dieses Geräts. Wenn Sie !
sehen, schlagen Sie in Anhang A den übersetzten Sicherheitshinweis in Ihrer Sprache nach.
Vigtigt: Tillæg A indeholder oversatte sikkerhedsadvarsler, der vedrører installation af dette udstyr. Når
De ser symbolet !, skal De slå op i tillæg A og finde de oversatte sikkerhedsadvarsler i Deres eget sprog.
Belangrijk: Appendix A bevat vertaalde veiligheidsopmerkingen voor het installeren van deze apparatuur.
Wanneer u de !ziet, raadpleeg Appendix A voor vertaalde veiligheidsinstructies in uw taal.
Important: L'annexe A contient les instructions de sécurité relatives à l'installation de cet équipement.
Lorsque vous voyez le symbole !, reportez-vous à l'annexe A pour consulter la traduction de ces
instructions dans votre langue.
Tärkeää: Liite A sisältää tämän laitteen asentamiseen liittyvät käännetyt turvaohjeet. Kun näet !-
symbolin, katso käännettyä turvaohjetta liitteestä A.
Importante: l’Appendice A contiene avvisi di sicurezza tradotti per l’installazione di questa apparecchiatura.
Il simbolo !, indica di consultare l’Appendice A per l’avviso di sicurezza nella propria lingua.
Viktig: Tillegg A inneholder oversatt sikkerhetsinformasjon for installering av dette utstyret. Når du ser
!, åpner du til Tillegg A for å finne den oversatte sikkerhetsinformasjonen på ønsket språk.
Importante: O Anexo A contém advertências de segurança traduzidas para instalar este equipamento.
Quando vir o símbolo !, leia a advertência de segurança traduzida no seu idioma no Anexo A.
Importante: El Apéndice A contiene mensajes de seguridad traducidos para la instalación de este equipo.
Cuando vea el símbolo !, vaya al Apéndice A para ver el mensaje de seguridad traducido a su idioma.
Obs! Bilaga A innehåller översatta säkerhetsmeddelanden avseende installationen av denna utrustning.
När du ser !, skall du gå till Bilaga A för att läsa det översatta säkerhetsmeddelandet på ditt språk.
U.S. Federal Communications Commission
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.

v
Electrical Safety and Emission Statement .............................................iii
Welcome to Allied Telesyn ......................................................................... vii
Where to Find Web-based Guides .................................................................. vii
Document Conventions ................................................................................... vii
Contacting Allied Telesyn .............................................................................. viii
Online Support ........................................................................................ viii
Telephone and Fa Support .................................................................... viii
E-mail Support ........................................................................................ viii
Returning Products .......................................................................................... i
FTP Server........................................................................................................ i
For Sales or Corporate Information .................................................................
Tell Us What You Think ...................................................................................
Overview .......................................................................................................... 1
Gigabit Ethernet Technology and FDDI Technology ...................................... 2
Features and Components ................................................................................ 3
Fiber Optic Port 1 (P1) ............................................................................... 4
Fiber Optic Port 2 (P2) ............................................................................... 4
AC Power Socket ........................................................................................ 4
Port and System LEDs ............................................................................... 5
Installing the AT-EX1001SC/GM1 Multimode E tender................................ 6
Planning the Installation ........................................................................... 6
Selecting a Site ........................................................................................... 7
Verifying Package Contents ...................................................................... 7
Reviewing Safety Guidelines ..................................................................... 7
Installing the Unit ...................................................................................... 9
Troubleshooting............................................................................................... 10
Technical Specifications .................................................................................. 11
Warranty Registration .................................................................................... 11
Appendix A
Translated Safety and Emission Information ....................................... 13
Appendix B
Technical Support Fax Order ................................................................... 25
Incident Summary........................................................................................... 25
Appendix C
AT EX1001SC/GM1 Installation Guide Feedback ................................. 27
Table of Contents

vii
This guide contains instructions on how to install the AT-EX1001SC/GM1
Gigabit Ethernet Multimode E tender.
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. All web-based documents relating to this product and
other Allied Telesyn products can be downloaded from the web site in PDF
format.
Document Conventions
This guide uses several conventions that you should become familiar with first
before you begin to install 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
There are several ways that you can contact Allied Telesyn technical support:
online, telephone, fa , or e-mail.
Online Support
You can request technical support online by filling out the Online Technical
Support Form at www.alliedtelesyn.com/forms/support.htm.
Telephone and Fax Support
E-mail Support
United States and Canada
[e-mail]
Latin America, Mexico, Puerto Rico, Caribbean, and Virgin Islands
[e-mail]
United Kingdom, Sweden, Norway, Denmark, and Finland
[e-mail]
Americas
United States, Canada, Me ico,
Central America, South America
Tel: [phone], option 4
Fa : 1 [phone]
Germany
Germany, Switzerland, Austria, Eastern
Europe
Tel: [phone]
Fa : ([phone]
Asia
Singapore, Taiwan, Thailand, Malaysia,
Indonesia, Korea, Philippines, China,
India, Hong Kong
Tel: [phone]
Fa : ([phone]
Italy
Italy, Spain, Portugal, Greece, Turkey,
Israel
Tel: [phone]
Fa : ([phone]
Australia
Tel: [phone]
Fa : ([phone]
Japan
Tel: [phone]
Fa : ([phone]
France
France, Belgium, Lu embourg,
The Netherlands, Middle East, Africa
Tel: [phone]
Fa : ([phone]
United Kingdom
United Kingdom, Denmark, Norway,
Sweden, Finland
Tel: [phone]
Fa : ([phone]

AT-EX1001SC/GM1 Installation Guide
ix
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 e pense.
To obtain an RMA number, contact Allied Telesyn’s Technical Support at one
of the following locations:
FTP Server
If you need a device driver for an Allied Telesyn device and you know the
name of the driver, you can download the software by connecting directly to
our FTP server at ftp://gateway.centre.com.
At login, enter ‘anonymous’. Enter your e-mail address for the password as
requested by the server at login.
North America
2205 Ringwood Ave
San Jose, CA 95131
Tel: [phone], option 4
Fa : 1-503-639-3716
European Customer Support Centre
10/11 Bridgemead Close
Westmead Industrial Estate
Swindon, Wiltshire SN5 7YT
England
Tel: [phone]
Fa : [phone]
Latin America, the Caribbean,
Virgin Islands
Tel: international code + 425-481-3852
Fa : international code + 425-483-9458
Mexico and Puerto Rico
Tel: [phone], e t 3852 or
1-800-424-4284, e t 3852
Me ico only: 95-800-424-5012, e t 3852
Fa : international code + 425-489-9191

x
For Sales or Corporate Information
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 “AT-EX1001SC/GM1
Installation Guide Feedback” on page 27 and return the form to us at the
address or fa number provided. You can also provide feedback online by
filling out the send Us Feedback Form at www.alliedtelesyn.com/forms/
feedback.htm.
Allied Telesyn International, Corp.
19800 North Creek Parkway, Suite 200
Bothell, WA 98011
Tel: [phone]
Fa : 1 [phone]
Allied Telesyn International, Corp.
960 Stewart Drive, Suite B
Sunnyvale, CA 94085
Tel: [phone] (USA and Canada)
Fa : 1 [phone]

1
Overview
The AT-EX1001SC/GM1 Gigabit Ethernet Multimode E tender (Figure 1)
allows you to e tend the ma imum distance of standard multimode fiber cable
for 1000Base-SX Gigabit Ethernet beyond the distance limitations imposed by
the current IEEE 802.3z standard. With this unit, you can e tend your network
up to 2 kilometers (1.24 miles) over 50/125 or 62.5/125 micron multimode fiber
optic cabling.
Figure 1 AT-EX1001SC/GM1 Gigabit Ethernet Multimode Extender
EX1001SC/GM1
PBAC POCPOC
P1 P2
PWR SD SD
TRSD
R

2
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 e tremely high rates of
throughput, greater than that allowed by FDDI, have emerged and have
e ceeded the capabilities of FDDI to handle the load. E amples 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,
typically single-mode fiber. Currently, Gigabit Ethernet transmission on
multimode fiber is limited to a ma imum of 550 meters (1500 feet) on 50/125
micron fiber and 275 meters (754 feet) on 62.5/125 micron. In network
configurations requiring greater distances, a network administrator has been
confronted with the choice of either retaining FDDI and its lower bandwidth or
replacing the e isting multimode fiber cable with single-mode cable, typically
at great cost.
The AT-EX1001SC/GM1 Gigabit Ethernet Multimode E tender greatly
simplifies the migration by allowing the network administrator to install
Gigabit Ethernet while maintaining the e isting multimode fiber cable. With
this unit, which must be used in pairs, the network administrator can e tend
the distance of Gigabit Ethernet transmission over multimode fiber cable from
the current limitation of 550 meters (1500 feet) to 2 kilometers (1.24 miles). In
many situations, this eliminates the need of replacing the e isting multimode
fiber cable by enabling the network administrator to use the legacy cable
system.
Figure 2 illustrates a network that incorporates two AT-EX1001SC/GM1
Gigabit Multimode E tenders. The units interconnect an AT-8224XL Fast
Ethernet Switch with an AT-A15/SX E pansion Module and an AT-9006
Gigabit Ethernet Switch.

AT-EX1001SC/GM1 Installation Guide
3
Figure 2 Example Topology
Features and Components
The AT-EX1001SC/GM1 Gigabit Ethernet Multimode E tender has the
following features:
❑One 1000Base-X fiber optic port (Port 1) with a ma imum operating
distance of 2 kilometers (1.24 miles) using 50/125 or 62.5/125 micron
multimode fiber
❑One 1000Base-SX fiber optic port (Port 2) with a ma imum range of
550 meters (1500 feet) using 50/125 micron multimode fiber or 275
meters (754 feet) using 62.5/125 micron multimode fiber
❑System and port status LEDs
❑Full-duple operation
❑One AC power supply socket.
STATUS
RESET
FAULT
RPS
PWR
1000BASE-SX
A
B
RS-232
TERMINALPORT
PORTACTIVITY
L/A
D/C
L/A
D/C
L/A
D/C
L/A
D/C
L/A
D/C
L/A
D/C
LINK ACTIVITY
FULLDUP
L/A
D/C
HALFDUP
COL
1
RXTX
4
RX
TX
2
RXTX
5
RXTX
3
RXTX
6
RX
TX
1000BASE-SXGIGABITETHERNET SWITCH
RS-232
TERMINALPORT
STATUS
10BASE-T/ 100BASE-TX
FASTETHERNET SWITCH
PORTACTIVITY
10BASE-T/100BASE-TX
R
R
AT-8224XL Switch with AT-9006 Switch
AT-EX1001 Gigabit
2 km
275 m / 550 m
275 m / 550 m
Multimode fiber cable
Multimode Extenders
AT-A15 Expansion Module

4
Figure 3 illustrates the front panel of the unit.
Figure 3 AT-EX1001SC/GM1 Front Panel
Fiber Optic Port 1 (P1)
Port 1 is a 1000Base-X port that operates with either 50/125 or 62.5/125 micron
multimode fiber and has a ma imum operating distance of 2 kilometers (1.24
miles). This port operates in full-duple mode at 1000 Mbps.
Note
Port 1 must be connected to Port 1 on another AT-EX1001SC/GM1
Multimode E tender. Do not connect Port 1 to any other type of network
device.
Fiber Optic Port 2 (P2)
Port 2 is a 1000Base-SX port that operates with either 50/125 micron
multimode fiber for a ma imum operating distance of 550 meters (1500 feet) or
62.5/125 micron multimode fiber for a ma imum distance of 275 meters (754
feet). This port can be connected to a switch, server, or other network device
that can operate at 1000 Mbps in full-duple mode.
AC Power Socket
The single AC power supply socket in the front panel has autoranging AC
voltage inputs, ranging from 100 to 240 VAC, 50/60 Hz
EX1001SC/GM1
Port 2 (P2)Port 1 (P1)
1000Base-X
Fiber Optic
1000Base-SX
Fiber Optic

AT-EX1001SC/GM1 Installation Guide
5
Port and System LEDs
The front panel has several LEDs that display the status of the ports and the
unit. Table 1 describes the functions of the LEDs.
Note
A valid port link is indicated only when both the SD and the PLL LOCK
LEDs are ON.
Table 1 AT-EX1001SC/GM1 LED Indicators
LED Description State Indicates
System LEDs
PWR/
NMS
Power Green Extender is powered up and ready for
use.
LP/BACK Loop Back N/A Not implemented.
Port LEDs
SD Signal Detect Green Signal is present on this port.
PLL
LOCK
Phase Lock
Loop Lock
Green Phase Lock Loop is locked on this
port.

6
Installing the AT-EX1001SC/GM1 Multimode Extender
The AT-EX1001SC/GM1 Multimode E tender is installed and used in pairs.
The units do not support the use of any media converters in the configuration.
The pair of e tenders is connected directly to the host and to each other. The
units are easy to install and do not require any software configuration or
software management.
Planning the Installation
When installing an AT-EX1001SC/GM1 Multimode E tender, do not e ceed
the ma imum cable distances intended for its media type. Refer to Table 2 for
a description of the standards (connectors), media, and ma imum distances for
each port.
Note
Do not use single-mode fiber on either port of the AT-EX1001SC/GM1
Multimode E tender.
Table 2 Media Types and Distances
Port Connector
Type Media Type MHz/km Rating
Maximum
Distance
Port 1 (P1)1
1. Assumes that the opposite end of the fiber cable is connected to P1 on another AT-EX1001SC/GM1
Gigabit Ethernet Mulitmode Extender.
SC 50/125 micron or 62.5/
125 micron multimode
fiber
N/A 2 km (1.24 mi)
Port 2 (P2) SC 50/125 micron
multimode fiber
500
400
550 m (1500 ft)
500 m (1370 ft)
62.5/125 micron
multimode fiber
200
160
275 m (754 ft)
220 m (604 ft)

AT-EX1001SC/GM1 Installation Guide
7
Selecting a Site
Be sure to observe the following requirements when choosing a site for the
AT-EX1001SC/GM1 Multimode E tender.
❑Select a site that is dust-free and moisture-free.
❑Do not block the ventilation openings on the unit. The site should
allow for proper heat dissipation from and adequate ventilation
around the unit.
❑Be sure that the site will allow you to easily access the fiber optic
cables and the power cable.
❑Use dedicated power circuits or power conditioners to supply reliable
power to the unit.
Verifying Package Contents
Make sure that the following items are included in your package, If any of the
following items are missing or damaged, contact your Allied Telesyn sales
representative.
❑One AT-EX1001SC/GM1 Gigabit Ethernet Multimode E tender
❑Power cord (Americas, EC, Australia, and UK only)
❑This installation guide
❑Warranty card
Reviewing Safety Guidelines
Please review the following safety guidelines before you begin to install the
unit. Refer to Appendi A for translated safety statements in your language.
Laser
Class 1 laser product. ! 6
Laser
Do not stare into the laser beam. ! 7
Warning
Electric Shock Hazard: To prevent electric shock, do not remove the
cover. There are no user-serviceable parts inside. The unit contains
hazardous voltages and should only be opened by a trained and qualified
technician. ! 8

8
Warning
Lightning Danger: Do not work on this equipment or cables during
periods of lightening activity. ! 9
Warning
Power cord is used as a disconnection device: To de-energize
equipment, disconnect the power cord. ! 10
Warning
Electrical Type Class 1 Equipment: This equipment must be
earthed. The power plug must be connected to a properly wired earth
ground socket outlet. An improperly wired socket outlet could place
hazardous voltages on accessible metal parts. ! 11
Caution
Pluggable Equipment: The socket outlet should be installed near the
equipment and should be easily accessible. ! 12
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. ! 13
Caution
Operating Temperature: This product is designed for a ma imum
ambient temperature of 50°C. ! 14
Caution
All Countries: Install this product in accordance with local and
National Electric Codes. ! 15

AT-EX1001SC/GM1 Installation Guide
9
Installing the Unit
To install the AT-EX1001SC/GM1 Multimode E tender on a desktop, perform
the following steps:
1. Remove all components from the shipping package and store the
packaging material in a safe location.
2. Locate a level, secure surface for the unit.
Warning
The power cord is used as a disconnection device. To de-energize
equipment, disconnect the power cord. ! 10
3. Apply AC power to the AT-EX1001SC/GM1 Multimode E tender by
plugging the power cord into the AC power connector on the front of the
unit and plugging the other end into a wall outlet. Check that the Power
LED illuminates.
Caution
Do not remove the dust covers from the fiber optic ports on the unit until
you are ready to connect the cables. Dust contamination can adversely
impact the operation of the ports.
4. Remove the dust cover from Port 1 (P1) on the AT-EX1001SC/GM1
Multimode E tender.
5. Connect the appropriate fiber optic cable to Port 1 (P1) on the Gigabit
Ethernet multimode e tender. The cable should connect the TX port of one
AT-EX1001SC/GM1 Multimode E tender to the RX port of the other
multimode e tender.
6. Remove the dust cover from Port 2 (P2) on the AT-EX1001SC/GM1
Multimode E tender.
7. Connect one end of the fiber optic cable to Port 2 (P2) and the other end to
the host. The cable should connect the TX port of the e tender to the RX
port of the host device. Similarly, the RX port of the e tender should
connect to the TX port of the host device.
8. Check that the LEDs on the unit. Refer to Table 1 for a description of the
functions of each LED.

10
Troubleshooting
This sections contains troubleshooting recommendations should you encounter
any problems with the unit.
If the Power LED does not light up after connecting the AC power cord, do the
following:
❑Make sure that the power cord is securely connected to the front of the
AT-EX1001SC/GM1 Multimode E tender and that the other end is
securely connected to a power outlet.
❑Try using another power cord to see if power is supplied to the unit.
❑Check that the power outlet has power by connecting another device
to it.
If the PLL Lock and SC LEDs of Port 1 do not illuminate after connecting both
AT-EX1001SC/GM1 Multimode E tenders, do the following:
❑Make sure that the power cords of both units are securely connected
to their power outlets and that power is being fed into the units.
❑Check the connections between units. The cable attached to the TX
port of one unit should connect to the RX port of the other unit.
❑Make sure that the entire network is functioning properly in case the
problem might lie beyond the unit.
If after connecting one of the units to the host device the PLL Lock and SC
LEDs of Port 2 fail to light up, do the following:
❑Make sure that both the host device and the AT-EX1001SC/GM1
Multimode E tender are powered up and functioning properly.
❑Check the connections between the AT-EX1001SC/GM1 Multimode
E tender and the host device. The cable attached to the TX port on
AT-EX1001SC/GM1 Multimode E tender should connect to the RX
port of the host. Likewise, the RX port of the unit should connect to the
TX port of the host device.
❑Check that the entire network is functioning properly in case the
problem might lie beyond the AT-EX1001SC/GM1 Multimode
E tender.