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MGS3520 Series User’s Guide
391
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P P E N D I X
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Customer Support
In the event of problems that cannot be solved by using this manual, you should contact your
vendor. If you cannot contact your vendor, then contact a ZyXEL office for the region in which you
bought the device.
See
http://www.zyxel.com/homepage.shtml
and also
http://www.zyxel.com/about_zyxel/zyxel_worldwide.shtml
for the latest information.
Please have the following information ready when you contact an office.
Required Information
• Product model and serial number.
• Warranty Information.
• Date that you received your device.
• Brief description of the problem and the steps you took to solve it.
Corporate Headquarters (Worldwide)
Taiwan
• ZyXEL Communications Corporation
• http://www.zyxel.com
Asia
China
• ZyXEL Communications (Shanghai) Corp.
ZyXEL Communications (Beijing) Corp.
ZyXEL Communications (Tianjin) Corp.
• http://www.zyxel.cn
India
• ZyXEL Technology India Pvt Ltd
• http://www.zyxel.in
Kazakhstan
• ZyXEL Kazakhstan
• http://www.zyxel.kz
Summary of Contents for XS1920 Series
Page 18: ...18 PART I User s Guide ...
Page 32: ...32 PART II Technical Reference ...
Page 177: ...Chapter 21 Classifier XS1920 Series User s Guide 177 Figure 122 Classifier Example EXAMPLE ...
Page 408: ...Appendix C IPv6 XS1920 Series User s Guide 408 ...
Page 412: ...Appendix D Legal Information XS1920 Series User s Guide 412 Environmental Product Declaration ...