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3Com Corporation
5400 Bayfront Plaza
Santa Clara, California
95052-8145
Copyright ©
3Com Corporation, 1997.
All rights reserved. No part of this 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 Corporation.
3Com Corporation reserves the right to revise this documentation and to make changes in content from
time to time without obligation on the part of 3Com Corporation to provide notification of such revision or
change.
3Com Corporation 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.
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:
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 Corporation, 5400 Bayfront Plaza, Santa Clara, California 95052-8145.
For civilian agencies:
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 Corporation’s standard commercial agreement for the software.
Unpublished rights reserved under the copyright laws of the United States.
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.
Unless otherwise indicated, 3Com registered trademarks are registered in the United States and may or may
not be registered in other countries.
3Com, NETBuilder, and SuperStack are registered trademarks of 3Com Corporation. 3TECH is a trademark
of 3Com Corporation. 3ComFacts is a service mark of 3Com Corporation.
CompuServe is a registered trademark of CompuServe, Inc. IBM is a registered trademark of International
Business Machines Corporation. AppleTalk is a registered trademark of Apple Corporation. Banyan and
VINES are registered trademarks of Banyan Systems. UNIX is a registered trademark in the United States and
other countries, licensed exclusively through X/Open Company Limited. XNS is a trademark of Xerox
Corporation. Siemens and EWSD are registered trademarks of Siemens Aktiengesellschaft. AT&T and 5ESS
are registered trademarks of American Telephone and Telegraph. DMS is a registered trademark of Nothern
Telecom Limited.
Other brand and product names may be registered trademarks or trademarks of their respective holders.
Guide written by Ramona Boersma. Edited by Amy Guzules. Technical illustration by Debra Knodel.
Production by Ramona Boersma.
Electromagnetic Compatibility Information
Classes
Various national agencies (in the United States, The Federal Communications Commission (FCC)) govern the
levels of electromagnetic emissions from digital devices. Electromagnetic emissions can interfere with radio
and television transmission. To reduce the risk of harmful interference these agencies have established
requirements for manufacturers of digital devices
The manufacturer of a digital device must test and label a product to inform an end-user of the maximum
emission level from the product when used in accordance with its instructions. The emission levels
encountered are classified as Class A or Class B. A system that meets the Class A requirement can be
marketed for use in an industrial or a commercial area. A system that meets the more stringent Class B
requirement can be marketed for use in a residential area in addition to an industrial or a commercial area.
The end user is generally held responsible for ensuring that his system is suitable for its environment as
stated in the above paragraph and bears the financial responsibility for correcting any harmful interference.
SS2TRHWBook Page ii Monday, May 5, 1997 3:11 PM