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ZyWALL USG 20-2000 User’s Guide 145
APPENDIX A
Legal Information
Copyright
Copyright © 2013 by ZyXEL Communications Corporation.
The contents of this publication may not be reproduced in any part or as a whole, transcribed, stored in a retrieval system, translated into
any language, or transmitted in any form or by any means, electronic, mechanical, magnetic, optical, chemical, photocopying, manual, or
otherwise, without the prior written permission of ZyXEL Communications Corporation.
Published by ZyXEL Communications Corporation. All rights reserved.
Disclaimer
ZyXEL does not assume any liability arising out of the application or use of any products, or software described herein. Neither does it
convey any license under its patent rights nor the patent rights of others. ZyXEL further reserves the right to make changes in any
products described herein without notice. This publication is subject to change without notice.
Certifications (Class B for ZyWALL USG 20, 20W, 50, 100, 100-PLUS, and 200)
Federal Communications Commission (FCC) Interference Statement
The device complies with Part 15 of 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 operations.
This device 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 device 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 device does cause harmful interference to radio/television reception, which can be determined by turning the device off and on, the
user is encouraged to try to correct the interference by one or more of the following measures:
1 Reorient or relocate the receiving antenna.
2 Increase the separation between the equipment and the receiver.
3 Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
4 Consult the dealer or an experienced radio/TV technician for help.
FCC Radiation Exposure Statement
This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
IEEE 802.11n (20MHz) operation of this product in the U.S.A. is firmware-limited to channels 1 through 11. IEEE 802.11n (40MHz)
operation of this product in the U.S.A. is firmware-limited to channels 3 through 9.
To comply with FCC RF exposure compliance requirements, a separation distance of at least 20 cm must be maintained between the
antenna of this device and all persons.
For product available in the USA market, only channel 1~11 can be operated. Selection of other channels is not possible.
注意 !
依據 低功率電波輻射性電機管理辦法
第十二條 經型式認證合格之低功率射頻電機,非經許可,公司、商號或使用
者均不得擅自變更頻率、加大功率或變更原設計之特性及功能。
第十四條 低功率射頻電機之使用不得影響飛航安全及干擾合法通信;經發現
有干擾現象時,應立即停用,並改善至無干擾時方得繼續使用。
前項合法通信,指依電信規定作業之無線電信。低功率射頻電機須
受合法通信或工業、科學及醫療用電波輻射性電機設備之干擾。
本機限在不干擾合法電臺與不受被干擾保障條件下於室內使用。
減少電磁波影響,請妥適使用。
Notices
Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the
equipment.
This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.
145


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