The SuperStack II Baseline Dual Speed Hub is part of the extensive SuperStack IIrange of 3Com products. This range includes hubs, switches, power systemsand other networking equipment, and is continually being developed. Contactyour supplier for the latest product information and to order these products.Product RegistrationYou can now register your SuperStack II Switch on the 3Com web site toreceive up-to-date information on your product:http://www.3com.com/productreg/pddFeedbackYour suggestions are very important to us. They will help make ourdocumentation more useful to you. Please e-mail comments about thisdocument to 3Com at: pddtechpubs_comments@3Com.comPlease include the following information when commenting: the documenttitle, part number (shown at the bottom of page 8), and page number, ifappropriate.Environmental StatementIt is the policy of 3Com Corporation to be environmentally-friendly in all operations.To uphold our policy, we are committed to: Establishing environmental performance standards that comply with nationallegislation and regulations. Conserving energy, materials and natural resources in all operations. Reducing the waste generated by all operations. Ensuring that all waste conforms to recognized environmental standards. Maximizing the recyclable and reusable content of all products. Ensuring that all products can be recycled, reused and disposed of safely. Ensuring that all products are labelled according to recognized environmentalstandards. Improving our environmental record on a continual basis.© 3Com Technologies, 2000. All rights reserved. No part of thisdocumentation may be reproduced in any form or by any means or used tomake any derivative work (such as translation, transformation, or adaptation)without permission from 3Com Technologies.3Com Technologies reserves the right to revise this documentation and tomake changes in content from time to time without obligation on the part of3Com Technologies to provide notification of such revision or change.3Com Technologies provides this documentation without warranty of any kind,either implied or expressed, including, but not limited to, the impliedwarranties of merchantability and fitness for a particular purpose. 3Com maymake improvements or changes in the product(s) and/or the program(s)described in this documentation at any time.UNITED STATES GOVERNMENT LEGENDS:If you are a United States government agency, then this documentation andthe software described herein are provided to you subject to the followingrestricted rights:For units of the Department of Defense:Restricted Rights Legend: Use, duplication or disclosure by the Government issubject to restrictions as set forth in subparagraph (c) (1) (ii) for restrictedRights in Technical Data and Computer Software clause at 48 C.F.R.52.227-7013. 3Com Centre, Boundary Way, Maylands Park South, HemelHempstead, Herts, HP2 7YU, U.K.For civilian agencies:Restricted Rights Legend: Use, reproduction or disclosure is subject torestrictions set forth in subparagraph (a) through (d) of the CommercialComputer Software - Restricted Rights Clause at 48 C.F.R. 52.227-19 and thelimitations set forth in 3Com Corporation’s standard commercial agreement forthe software. Unpublished rights reserved under the copyright laws of theUnited States.If there is any software on removable media described in this documentation, itis furnished under a license agreement included with the product as a separatedocument, in the hard copy documentation, or on the removable media in adirectory file named license.txt. If you are unable to locate a copy, pleasecontact 3Com and a copy will be provided to you.Unless otherwise indicated, 3Com registered trademarks are registered in theUnited States and may or may not be registered in other countries.3Com and SuperStack are registered trademarks of 3Com Corporation.Other brand and product names may be registered trademarks or trademarksof their respective holders.PRODUCTSLEGAL N OTICES8Part Number: DUA1659-2AAA03Revision: 00Published: March 2000