3Com Switch DUA1771 0AAA01 User Manual

®
SuperStack 3 Switch 4900 Series 1000BASE-SX Module (3C17710)  
User Guide  
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INTRODUCTION  
The 1000BASE-SX Module (3C17710) provides your  
The Module conforms to the full duplex implementation  
®
SuperStack 3 Switch 4900 series with full duplex, four  
wire speed Gigabit Ethernet fiber optic ports. This allows  
you to provide connectivity between the Switch and  
remote workgroups or to create a high capacity aggre-  
gated link backbone connection.  
of the Gigabit Ethernet standard, IEEE 802.3z. The ports  
use 62.5 µm or 50 µm multimode fiber optic cable with  
MT-RJ duplex connectors, and support the segment  
lengths specified in IEEE 802.3z, as shown below:  
Fiber Size  
Fiber Bandwidth Segment Lengths Supported  
at 850 nm  
62.5 µm  
160 MHz/km  
200 MHz/km  
2–220 m (7–722 ft)  
2–275 m (7–902 ft)  
50 µm  
400 MHz/km  
500 MHz/km  
2–500 m (7–1805 ft)  
2–550 m (7–1805 ft)  
DUA1771-0AAA01  
1
 
INSTALLATION AND REMOVAL  
Installing the Module into a Switch  
LEDs  
You can gather information about the status of the  
Module and its packet activity using the Expansion  
Module LEDs on the front of the Switch and the Port  
LEDs on the rear of the Module.  
CAUTION: This Module is not hot-insertable or  
hot-swappable. Always make sure that the Switch is  
powered down and disconnected from the mains before  
installing or removing a Module. Use the following  
instructions when installing or removing a Module.  
Expansion Module Activity LED (Switch)  
CAUTION: This Module is only designed to work with  
the 3Com SuperStack 3 Switch 4900 series.  
Status  
Color  
Meaning  
On  
Amber  
Packets are being transmitted or received  
on the Module.  
To install the Module:  
Off  
No color  
There are no packets being transmitted or  
received on the Module.  
1 Ensure that the Switch is disconnected from the mains  
power supply and that you are wearing an anti-static  
wristband connected to a suitable earth point.  
Expansion Module Status LED (Switch)  
Status  
Color  
Meaning  
2 Place the Switch on a flat surface. Using a suitable  
screwdriver, remove the blanking plate from the rear of  
the Switch. Do not remove any other screws from the  
rear of the Switch.  
On  
Green  
N/A (cannot report status of all ports  
together).  
Off  
No color  
Amber  
The Module is not installed.  
3 Keep the blanking plate and screws in a safe place. If  
you remove the Module at any time, you must replace  
the blanking plate to prevent dust and debris entering  
the Switch and to aid the circulation of cooling air.  
Flashing  
The Module is installed but is not  
recognised (faulty or unsupported).  
On  
Amber  
The Module is installed.  
Port Activity LED (Module)  
4 Hold the Module so that the text on the front panel is  
upright, and insert it into the Switch, ensuring the back  
panel is flush against the back of the Switch. Tighten  
the three captive thumbscrews securing the Module with  
a suitable tool.  
Status  
Color  
Meaning  
On  
Amber  
Packets are being transmitted or received  
on this port.  
Off  
No color  
There are no packets being transmitted or  
received on this port.  
5 To activate the Module:  
Port Status LED (Module)  
a Ensure that the Switch is powered-up.  
Status  
On  
Color  
Meaning  
b Remove the protective plastic covers from the fiber  
connections on the Module.  
Green  
No color  
Green  
A link is present and the port is enabled.  
There is no link present.  
c
Plug the MT-RJ connector on the fiber cable into the  
fiber port on the Module.  
Off  
Flashing  
A link is present and the port is disabled.  
d Connect the other end of the fiber optic cable to a  
device fitted with a 1000BASE-SX Gigabit Ethernet  
connection.  
6 Check the LEDs on the front of the Switch and the rear  
of the Module to ensure that the Module is operating  
correctly. Refer to LEDsbelow for more information.  
Removing the Module from a Switch  
1 Ensure that the power supply and the fiber backbone  
connection cables are disconnected from the Switch.  
2 Place the Switch on a flat surface. Undo the three  
captive thumbscrews securing the Module into the  
Switch. Do not remove any other screws from the  
Switch.  
3 If you are not fitting another Module immediately,  
replace the blanking plate to ensure that dust and debris  
do not enter the Switch and to aid the circulation of  
cooling air.  
3
 
 
MANAGING THE MODULE  
When the Module is installed you can configure it  
®
through your Switch. Refer to the SuperStack 3 Switch  
Implementation Guide and the Management Interface  
Reference Guide supplied with your Switch for more  
information.  
MODULE RESTRICTIONS  
When using the Module, note the following:  
The ports only operate at 1000 Mbps.  
The Module is not hot-insertable.  
The Module is not hot-swappable.  
The ports only operate in full duplex mode.  
The Module only operates with multimode fiber optic  
cable.  
PROBLEM SOLVING  
If you suspect a problem, carry out these steps before  
Check that all connectors on the fiber optic segment  
are correctly engaged.  
contacting your supplier:  
Ensure that the Module is correctly installed in the  
Switch and that the three captive thumbscrews which  
secure the Module are tightened with a suitable tool.  
Clean the terminators by wiping them gently with a  
clean tissue or cotton bud moistened with a little  
ethanol. Dirty fiber terminators on the fiber optic  
segment impair the quality of the light transmitted  
through the cable.  
Ensure that the Switch in which the Module is fitted  
is powered-up.  
For information about technical support, refer to  
Ensure that the device at the far end of the link is  
powered-up and operating correctly.  
4
 
TECHNICAL SPECIFICATIONS  
®
The SuperStack 3 Switch 4900 Series 1000BASE-SX  
Environmental  
Module has been designed to the following standards:  
Operating Temperature  
Storage Temperature  
Operating Humidity  
Power Consumption  
Standards  
040°C (32104°F)  
-10 to +70°C (14158°F)  
Functional  
ISO 8802-3, IEEE 802.3, IEEE 802.3x, IEEE 802.3z, IEEE  
802.1D, IEEE 802.1Q  
1095% (relative humidity, non-condensing)  
35 W (watts) maximum  
Safety  
EMC  
UL 1950, EN 60950, CSA 22.2#950, IEC 60950, IEC  
825-1, EN 60825-1  
EN60068 (IEC68)various parts  
CISPRR 22 Class A, EN55022 Class A, FCC Part 15  
Subpart B Class A, ICES-003 Class A, VCCI Class A,  
AS/NZS 3548 Class A, CNS 13438 Class A  
Physical  
Width  
Depth  
Height  
Weight  
244 mm (9.61 in.)  
Immunity  
EN 55024  
150 mm (5.91 in.)  
46 mm (1.81 in.) or 1U  
0.37 kg (0.82 lb)  
REGULATORY NOTICES  
FCC Statement  
CSA Statement  
This equipment has been tested and found to comply with the limits for  
a Class A digital device, pursuant to part 15 of the FCC rules. These  
limits are designed to provide reasonable protection against harmful  
interference when the equipment is operated in a commercial  
environment. This equipment 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.  
Operation of this equipment in a residential area is likely to cause  
harmful interference to radio communications, in which case the user will  
be required to correct the interference at their own expense.  
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.  
CE Statement (Europe)  
This product complies with the European Low Voltage Directive  
73/23/EEC and EMC Directive 89/336/EEC as amended by European  
Directive 93/68/EEC.  
Information To The User  
VCCI Statement  
If this equipment does cause 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 the receiving antenna.  
BSMI Statement  
Relocate the equipment with respect to the receiver.  
Move the equipment away from the receiver.  
Plug the equipment into a different outlet so that equipment and  
receiver are on different branch circuits.  
If necessary, the user should consult the dealer or an experienced  
radio/television technician for additional suggestions. The user may find  
the following booklet prepared by the Federal Communications  
Commission helpful:  
How to Identify and Resolve Radio-TV Interference Problems  
This booklet is available from the U.S. Government Printing Office,  
Washington, DC 20402, Stock No. 004-000-00345-4.  
In order to meet FCC emissions limits, this equipment must be used only  
with cables which comply with IEEE 802.3.  
5
 
LIFETIME LIMITED WARRANTY  
This warranty applies to customers located in the United States, Australia, Canada (except  
Quebec), Ireland, New Zealand, U.K., and other English language countries, and countries  
for which a translation into the local language is not provided  
export or import procedures. The shipment of a replacement product prior to 3Com  
receiving the defective product is subject to local legal requirements and may not be  
available in all locations. When such a replacement is provided and Customer fails to  
return the original product to 3Com within fifteen (15) days after shipment of the  
replacement, 3Com will charge Customer for the replacement product, at list price.  
Shipment of a Replacement Prior to 3Com Receiving the Defective Product is  
provided for five (5) years, after which time it may be available for a specified fee, but  
in either case only if Customer provides a purchase order number, credit card number,  
or other method of payment acceptable to 3Com, to be used if 3Com needs to  
charge Customer for the replacement, as explained below. 3Com will make  
commercially reasonable efforts to ship the replacement product not later than five (5)  
business days after receiving the request for a replacement, but may be delayed due  
to product availability or export or import procedures. The shipment of a replacement  
product prior to 3Com receiving the defective product is subject to local legal  
requirements and may not be available in all locations. When such a replacement is  
provided and Customer fails to return the original product to 3Com within fifteen (15)  
days after shipment of the replacement, 3Com will charge Customer for the  
replacement, at list price. This replacement prior to 3Com receiving the defective  
product is different from the fee-based Advance Hardware Replacement Service,  
which is available as a contracted service offering.  
®
SuperStack 3 Switch 4900 Series 1000BASE-SX Module  
(3C17710)  
Hardware  
3Com warrants to the end user ("Customer") that this hardware product will be free  
from defects in workmanship and materials, under normal use and service, for the  
following length of time from the date of purchase from 3Com or its authorized  
reseller:  
Lifetime, for as long as the original Customer owns the product (not transferable to a  
subsequent end user)  
3Com's sole obligation under this express warranty shall be, at 3Com's option and  
expense, to repair the defective product or part, deliver to Customer an equivalent  
product or part to replace the defective item, or if neither of the two foregoing  
options is reasonably available, 3Com may, in its sole discretion, refund to Customer  
the purchase price paid for the defective product. All products that are replaced will  
become the property of 3Com. Replacement products or parts may be new or  
reconditioned. 3Com warrants any replaced or repaired product or part for ninety  
(90) days from shipment, or the remainder of the initial warranty period, whichever is  
longer.  
Included Services  
3Com's Electronic Support Services, available at no charge, include 3Com  
Knowledgebase, information on known bugs, documentation, release notes, and  
publicly available software and firmware upgrades. 3Com reserves the right to modify  
or cancel this offering at any time, without advance notice.  
Software  
3Com warrants to Customer that each software program licensed from it, except as  
noted below, will perform in substantial conformance to its program specifications, for  
a period of ninety (90) days from the date of purchase from 3Com or its authorized  
reseller. 3Com warrants the media containing software against failure during the  
warranty period. No updates are provided, unless specifically included in the Included  
Services section. 3Com's sole obligation under this express warranty shall be, at  
3Com's option and expense, to refund the purchase price paid by Customer for any  
defective software product, or to replace any defective media with software which  
substantially conforms to applicable 3Com published specifications. Customer  
assumes responsibility for the selection of the appropriate applications program and  
associated reference materials. 3Com makes no warranty or representation that its  
software products will meet Customer's requirements or work in combination with  
any hardware or applications software products provided by third parties, that the  
operation of the software products will be uninterrupted or error free, or that all  
defects in the software products will be corrected. For any third party products listed  
in the 3Com software product documentation or specifications as being compatible,  
3Com will make reasonable efforts to provide compatibility, except where the  
non-compatibility is caused by a "bug" or defect in the third party's product or from  
use of the software product not in accordance with 3Com's published specifications  
or user manual.  
Telephone Technical Support, with coverage for basic troubleshooting only, will be  
provided at no additional charge for 12 months from the date of purchase, on a  
commercially reasonable efforts basis. Telephone support is provided by 3Com only if  
Customer purchased this product directly from 3Com, or if Customer's reseller is  
unable to provide telephone support. To qualify for this telephone technical support,  
and state the date of purchase, product number, and serial number. 3Com's  
response to a request for telephone technical support will be in the form of a return  
call from a 3Com representative by close of business the following business day,  
defined as 9 a.m. to 5 p.m., local time, Monday through Friday, excluding local  
holidays. Please refer to the Technical Support appendix in the User Guide for  
telephone numbers.  
Software Updates, All software and firmware upgrades and the latest code for this  
product downloaded through the 3Com Software Library.  
Warranties Exclusive  
IF A 3COM PRODUCT DOES NOT OPERATE AS WARRANTED ABOVE, CUSTOMER'S  
SOLE REMEDY FOR BREACH OF THAT WARRANTY SHALL BE REPAIR, REPLACEMENT,  
OR REFUND OF THE PURCHASE PRICE PAID, AT 3COM'S OPTION. TO THE FULL  
EXTENT ALLOWED BY LAW, THE FOREGOING WARRANTIES AND REMEDIES ARE  
EXCLUSIVE AND ARE IN LIEU OF ALL OTHER WARRANTIES, TERMS, OR CONDITIONS,  
EXPRESS OR IMPLIED, EITHER IN FACT OR BY OPERATION OF LAW, STATUTORY OR  
OTHERWISE, INCLUDING WARRANTIES, TERMS, OR CONDITIONS OF  
THIS 3COM PRODUCT MAY INCLUDE OR BE BUNDLED WITH (1) THIRD PARTY SOFT-  
WARE, OR (2) 3COM SOFTWARE THAT IS LICENSED "AS IS", THE USE OF WHICH IS  
GOVERNED BY A SEPARATE END USER LICENSE AGREEMENT. THIS 3COM WAR-  
RANTY DOES NOT APPLY TO SUCH THIRD PARTY SOFTWARE OR 3COM SOFTWARE  
LICENSED "AS IS". FOR THE APPLICABLE WARRANTY, PLEASE REFER TO THE END  
USER LICENSE AGREEMENT GOVERNING THE USE OF SUCH SOFTWARE OR THE  
ACCOMPANYING DOCUMENTATION RELATING TO SUCH SOFTWARE.  
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, SATISFACTORY QUALITY,  
CORRESPONDENCE WITH DESCRIPTION, AND NON-INFRINGEMENT, ALL OF WHICH  
ARE EXPRESSLY DISCLAIMED. 3COM NEITHER ASSUMES NOR AUTHORIZES ANY  
OTHER PERSON TO ASSUME FOR IT ANY OTHER LIABILITY IN CONNECTION WITH THE  
SALE, INSTALLATION, MAINTENANCE OR USE OF ITS PRODUCTS.  
3COM SHALL NOT BE LIABLE UNDER THIS WARRANTY IF ITS TESTING AND  
EXAMINATION DISCLOSE THAT THE ALLEGED DEFECT OR MALFUNCTION IN THE  
PRODUCT DOES NOT EXIST OR WAS CAUSED BY CUSTOMER'S OR ANY THIRD  
PERSON'S MISUSE, NEGLECT, IMPROPER INSTALLATION OR TESTING, UNAUTHORIZED  
ATTEMPTS TO OPEN, REPAIR OR MODIFY THE PRODUCT, OR ANY OTHER CAUSE  
BEYOND THE RANGE OF THE INTENDED USE, OR BY ACCIDENT, FIRE, LIGHTNING,  
POWER CUTS OR OUTAGES, OTHER HAZARDS, OR ACTS OF GOD.  
Year 2000 Warranty  
In addition to the Hardware Warranty and Software Warranty stated above, 3Com  
warrants that each product sold or licensed to Customer on and after January 1, 1998  
that is date sensitive will continue performing properly with regard to such date data  
on and after January 1, 2000, provided that all other products used by Customer in  
connection or combination with the 3Com product, including hardware, software,  
and firmware, accurately exchange date data with the 3Com product, with the  
exception of those products identified at 3Com's Web site,  
appears that any product that is stated to meet this standard does not perform  
properly with regard to such date data on and after January 1, 2000, and Customer  
notifies 3Com within ninety (90) days after purchase of the product from 3Com or its  
authorized reseller, 3Com shall, at its option and expense, provide a software update  
which would effect the proper performance of such product, repair such product,  
deliver to Customer an equivalent product to replace such product, or if none of the  
foregoing is feasible, refund to Customer the purchase price paid for such product.  
Any software update or replaced or repaired product will carry a Year 2000 Warranty  
for ninety (90) days after purchase.  
Limitation of Liability  
TO THE FULL EXTENT ALLOWED BY LAW, 3COM ALSO EXCLUDES FOR ITSELF AND  
ITS SUPPLIERS ANY LIABILITY, WHETHER BASED IN CONTRACT OR TORT (INCLUDING  
NEGLIGENCE), FOR INCIDENTAL, CONSEQUENTIAL, INDIRECT, SPECIAL, OR PUNITIVE  
DAMAGES OF ANY KIND, OR FOR LOSS OF REVENUE OR PROFITS, LOSS OF BUSINESS,  
LOSS OF INFORMATION OR DATA, OR OTHER FINANCIAL LOSS ARISING OUT OF OR  
IN CONNECTION WITH THE SALE, INSTALLATION, MAINTENANCE, USE,  
PERFORMANCE, FAILURE, OR INTERRUPTION OF ITS PRODUCTS, EVEN IF 3COM OR  
ITS AUTHORIZED RESELLER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH  
DAMAGES, AND LIMITS ITS LIABILITY TO REPAIR, REPLACEMENT, OR REFUND OF THE  
PURCHASE PRICE PAID, AT 3COM'S OPTION. THIS DISCLAIMER OF LIABILITY FOR  
DAMAGES WILL NOT BE AFFECTED IF ANY REMEDY PROVIDED HEREIN SHALL FAIL OF  
ITS ESSENTIAL PURPOSE.  
Obtaining Warranty Service  
Customer must contact a 3Com Corporate Service Center or an Authorized 3Com  
Service Center within the applicable warranty period to obtain warranty service  
authorization. Dated proof of purchase from 3Com or its authorized reseller may be  
required. Products returned to 3Com's Corporate Service Center must be  
pre-authorized by 3Com with a User Service Order (USO) number (or a Return  
Material Authorization (RMA) number or a Service Repair Order (SRO) number,  
whichever was issued) marked on the outside of the package, and sent prepaid and  
packaged appropriately for safe shipment, and it is recommended that they be insured  
or sent by a method that provides for tracking of the package. Responsibility for loss  
or damage does not transfer to 3Com until the returned item is received by 3Com.  
The repaired or replaced item will be shipped to Customer, at 3Com's expense, not  
later than thirty (30) days after 3Com receives the defective product, and 3Com will  
retain risk of loss or damage until the item is delivered to Customer.  
Disclaimer  
Some countries, states, or provinces do not allow the exclusion or limitation of implied  
warranties or the limitation of incidental or consequential damages for certain  
products supplied to consumers, or the limitation of liability for personal injury, so the  
above limitations and exclusions may be limited in their application to you. When the  
implied warranties are not allowed to be excluded in their entirety, they will be limited  
to the duration of the applicable written warranty. This warranty gives you specific  
legal rights which may vary depending on local law.  
Governing Law  
This Limited Warranty shall be governed by the laws of the State of California, U.S.A.,  
and by the laws of the United States, excluding their conflicts of laws principles. The  
United Nations Convention on Contracts for the International Sale of Goods is hereby  
excluded in its entirety from application to this Limited Warranty.  
3Com Corporation  
3Com shall not be responsible for any software, firmware, information, or memory  
data of Customer contained in, stored on, or integrated with any products returned to  
3Com for repair, whether under warranty or not.  
Dead- or Defective-on-Arrival. In the event a product completely fails to function or  
exhibits a defect in materials or workmanship within the first forty-eight (48) hours of  
installation but no later than thirty (30) days after the date of purchase, and this is verified  
by 3Com, it will be considered dead- or defective-on-arrival (DOA) and a replacement shall  
be provided prior to 3Com receiving the defective product, but only if Customer provides  
a purchase order number, credit card number, or other method of payment acceptable to  
3Com, to be used if 3Com needs to charge Customer for the replacement, as explained  
below. The replacement product will normally be shipped not later than three (3)  
business days after 3Com's verification of the DOA product, but may be delayed due to  
5400 Bayfront Plaza  
P.O. Box 58145  
Santa Clara, CA 95052-8145  
(408) 326-5000  
June 7, 1999  
3Com reserves the right to modify or cancel this offering at any time, without  
advance notice. This offering is not available where prohibited or restricted by law.  
6
 
TECHNICAL SUPPORT  
The following numbers may be used for technical  
support:  
Country  
Telephone Number  
Country  
Telephone Number  
Asia, Pacific Rim  
Australia  
Hong Kong  
India  
Indonesia  
Japan  
1 800 678 515  
800 933 486  
+61 2 9937 5085  
001 800 61 009  
0531 61 6439  
P.R. of China  
10800 61 00137 or  
021 6350 1590  
800 6161 463  
Singapore  
S. Korea  
82 2 3455 6455  
From anywhere in S. Korea: 00798 611 2230  
Malaysia  
New Zealand  
Pakistan  
1800 801 777  
0800 446 398  
+61 2 9937 5083  
1235 61 266 2602  
From Seoul:  
Taiwan, R.O.C.  
Thailand  
00798 611 2230  
0080 611 261  
001 800 611 2000  
Philippines  
Europe  
From anywhere in Europe, call: +31 (0)30 6029900 phone  
+31 (0)30 6029999 fax  
Europe, South Africa, and Middle East  
From the following countries, you may use the toll-free numbers:  
Austria  
Belgium  
Denmark  
Finland  
France  
Germany  
Hungary  
Ireland  
0800 297468  
0800 71429  
800 17309  
Middle East  
Netherlands  
Norway  
Poland  
Portugal  
Russia  
South Africa  
Spain  
Sweden  
Switzerland  
U.K.  
1800 945 3794  
0800 0227788  
800 11376  
00800 3111206  
0800 831416  
0800 995014  
0800 995014  
900 983125  
0800 113153  
0800 917959  
0800 1821502  
06800 12813  
1800 553117  
1800 9453794  
1678 79489  
0800 3625  
Israel  
Italy  
Luxembourg  
020 795482  
0800 55 3072  
0800 966197  
Latin America  
Argentina  
Brazil  
5411 4510 3200  
0800 13 3266  
571 629 4827  
Mexico  
Puerto Rico  
South America  
01 800 CARE (01 800 2273)  
800 666 5065  
1800 666 5065  
Colombia  
North America  
1 800 NET 3Com  
(1 800 638 3266)  
Enterprise Customers:  
1 800 876-3266  
LEGAL NOTICES  
© 3Com Technologies, 2000. All rights reserved. No part of this  
For civilian agencies:  
documentation may be reproduced in any form or by any means or used  
to make any derivative work (such as translation, transformation, or  
adaptation) without permission from 3Com Technologies.  
Restricted Rights Legend: Use, reproduction or disclosure is subject to  
restrictions set forth in subparagraph (a) through (d) of the Commercial  
Computer Software - Restricted Rights Clause at 48 C.F.R. 52.227-19 and  
the limitations set forth in 3Com Corporations standard commercial  
agreement for the software. Unpublished rights reserved under the  
copyright laws of the United States.  
3Com Technologies reserves the right to revise this documentation and  
to make changes in content from time to time without obligation on the  
part of 3Com Technologies to provide notification of such revision or  
change.  
If there is any software on removable media described in this  
documentation, it is furnished under a license agreement included with  
the product as a separate document, in the hard copy documentation, or  
on the removable media in a directory file named license.txt. If you  
are unable to locate a copy, please contact 3Com and a copy will be  
provided to you.  
3Com Technologies provides this documentation without warranty of any  
kind, either implied or expressed, including, but not limited to, the  
implied warranties of merchantability and fitness for a particular purpose.  
3Com may make improvements or changes in the product(s) and/or the  
program(s) described in this documentation at any time.  
Unless otherwise indicated, 3Com registered trademarks are registered in  
the United States and may or may not be registered in other countries.  
UNITED STATES GOVERNMENT LEGENDS:  
If you are a United States government agency, then this documentation  
and the software described herein are provided to you subject to the  
following restricted rights:  
3Com and SuperStack are registered trademarks of 3Com Corporation.  
Other brand and product names may be registered trademarks or  
trademarks of their respective holders.  
For units of the Department of Defense:  
Restricted Rights Legend: Use, duplication or disclosure by the  
Government is subject to restrictions as set forth in subparagraph (c) (1)  
(ii) for restricted Rights in Technical Data and Computer Software clause  
at 48 C.F.R. 52.227-7013. 3Com Centre, Boundary Way, Maylands Park  
South, Hemel Hempstead, Herts, HP2 7YU, U.K.  
7
 
 
ENVIRONMENTAL STATEMENTS  
General Environmental Statement  
End Of Life Statement  
It is the policy of 3Com Corporation to be environmen-  
tally-friendly in all operations. To uphold our policy, we  
are committed to:  
3Com processes allow for the recovery, reclamation and  
safe disposal of all end-of-life electronic components.  
Regulated Materials Statement  
Establishing environmental performance standards  
that comply with national legislation and regulations  
3Com products do not contain any hazardous or  
ozone-depleting material.  
Conserving energy, materials and natural resources in  
all operations  
Environmental Statement about the Documentation  
Reducing the waste generated by all operations  
The documentation for this product is printed on paper  
that comes from sustainable, managed forests; it is fully  
biodegradable and recyclable, and is completely chlo-  
rine-free. The varnish is environmentally-friendly, and the  
inks are vegetable-based with a low heavy-metal con-  
tent.  
Ensuring that all waste conforms to recognized envi-  
ronmental standards  
Maximizing the recyclable and reusable content of all  
products  
Ensuring that all products can be recycled, reused and  
disposed of safely  
Environmental Statement about the Product  
Packaging  
Ensuring that all products are labelled according to  
recognized environmental standards  
The packaging for this product is fully recyclable. It has a  
recycled (post consumer) waste content of at least 40%  
by weight, and no heavy-metal content.  
Improving our environmental record on a continual  
basis  
®
The SuperStack 3 Switch 4900 Series 1000BASE-SX Module is part of the extensive SuperStack range of 3Com products. This  
range includes hubs, switches, power systems and other networking equipment, and is continually being developed. Contact  
your supplier for the latest product information and to order these products.  
Product Registration  
You can now register your 1000BASE-SX Module on the 3Com web site to receive up-to-date information on your product:  
Documentation Feedback  
Your suggestions are very important to us. They will help make our documentation more useful to you. Please e-mail comments  
about this document to 3Com at:  
Please include the following information when commenting: the document title, part number (shown at the bottom of page 8),  
and page number, if appropriate.  
Part Number: DUA1771-0AAA01  
Published: August 2000  
8
 

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