ZyXEL Communications ES-2048 User manual

ES-2048
Intelligent Layer 2 Switch
48-port Fast Ethernet +
2 GbE Dual Personality Interfaces (Copper/SFP)
User’s Guide
Version 3.70
8/2006
Edition 1

ES-2048 User’s Guide
Copyright 1
Copyright
Copyright © 2006 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.
Trademarks
ZyNOS (ZyXEL Network Operating System) is a registered trademark of ZyXEL
Communications, Inc. Other trademarks mentioned in this publication are used for
identification purposes only and may be properties of their respective owners.

ES-2048 User’s Guide
2Certifications
Certifications
Federal Communications Commission (FCC) Interference Statement
This 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.
FCC Warning
This device has been tested and found to comply with the limits for a Class A digital switch,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a commercial environment. This device generates,
uses, and can radiate radio frequency energy and, if not installed and used in accordance with
the instruction manual, may cause harmful interference to radio communications. Operation of
this device in a residential area is likely to cause harmful interference in which case the user
will be required to correct the interference at his own expense.
CE Mark Warning:
This is a class A product. In a domestic environment this product may cause radio interference
in which case the user may be required to take adequate measures.
Taiwanese BSMI (Bureau of Standards, Metrology and Inspection) A
Warning:
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 A digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada.
Viewing Certifications
1Go to http://www.zyxel.com.

ES-2048 User’s Guide
Certifications 3
2Select your product from the drop-down list box on the ZyXEL home page to go to that
product's page.
3Select the certification you wish to view from this page.

ES-2048 User’s Guide
4Safety Warnings
Safety Warnings
For your safety, be sure to read and follow all warning notices and instructions.
• Do NOT use this product near water, for example, in a wet basement or near a swimming
pool.
• Do NOT expose your device to dampness, dust or corrosive liquids.
• Do NOT store things on the device.
• Do NOT install, use, or service this device during a thunderstorm. There is a remote risk
of electric shock from lightning.
• Connect ONLY suitable accessories to the device.
• Do NOT open the device or unit. Opening or removing covers can expose you to
dangerous high voltage points or other risks. ONLY qualified service personnel should
service or disassemble this device. Please contact your vendor for further information.
Make sure to connect the cables to the correct ports.
• Place connecting cables carefully so that no one will step on them or stumble over them.
• Always disconnect all cables from this device before servicing or disassembling.
• Use ONLY an appropriate power adaptor or cord for your device.
• Connect the power adaptor or cord to the right supply voltage (for example, 110V AC in
North America or 230V AC in Europe).
• Do NOT allow anything to rest on the power adaptor or cord and do NOT place the
product where anyone can walk on the power adaptor or cord.
• Do NOT use the device if the power adaptor or cord is damaged as it might cause
electrocution.
• If the power adaptor or cord is damaged, remove it from the power outlet.
• Do NOT attempt to repair the power adaptor or cord. Contact your local vendor to order a
new one.
• Do not use the device outside, and make sure all the connections are indoors. There is a
remote risk of electric shock from lightning.
• CAUTION: RISK OF EXPLOSION IF BATTERY (on the motherboard) IS REPLACED
BY AN INCORRECT TYPE. DISPOSE OF USED BATTERIES ACCORDING TO
THE INSTRUCTIONS. Dispose them at the applicable collection point for the recycling
of electrical and electronic equipment. For detailed information about recycling of this
product, please contact your local city office, your household waste disposal service or
the store where you purchased the product.
• Do NOT obstruct the device ventilation slots, as insufficient airflow may harm your
device.
• The length of exposed (bare) power wire should not exceed 7mm.

ES-2048 User’s Guide
Safety Warnings 5
This product is recyclable. Dispose of it properly.

ES-2048 User’s Guide
6ZyXEL Limited Warranty
ZyXEL Limited Warranty
ZyXEL warrants to the original end user (purchaser) that this product is free from any defects
in materials or workmanship for a period of up to two years from the date of purchase. During
the warranty period, and upon proof of purchase, should the product have indications of failure
due to faulty workmanship and/or materials, ZyXEL will, at its discretion, repair or replace the
defective products or components without charge for either parts or labor, and to whatever
extent it shall deem necessary to restore the product or components to proper operating
condition. Any replacement will consist of a new or re-manufactured functionally equivalent
product of equal or higher value, and will be solely at the discretion of ZyXEL. This warranty
shall not apply if the product has been modified, misused, tampered with, damaged by an act
of God, or subjected to abnormal working conditions.
Note
Repair or replacement, as provided under this warranty, is the exclusive remedy of the
purchaser. This warranty is in lieu of all other warranties, express or implied, including any
implied warranty of merchantability or fitness for a particular use or purpose. ZyXEL shall in
no event be held liable for indirect or consequential damages of any kind to the purchaser.
To obtain the services of this warranty, contact ZyXEL's Service Center for your Return
Material Authorization number (RMA). Products must be returned Postage Prepaid. It is
recommended that the unit be insured when shipped. Any returned products without proof of
purchase or those with an out-dated warranty will be repaired or replaced (at the discretion of
ZyXEL) and the customer will be billed for parts and labor. All repaired or replaced products
will be shipped by ZyXEL to the corresponding return address, Postage Paid. This warranty
gives you specific legal rights, and you may also have other rights that vary from country to
country.
Registration
Register your product online to receive e-mail notices of firmware upgrades and information
at www.zyxel.com for global products, or at www.us.zyxel.com for North American products.

ES-2048 User’s Guide
Customer Support 7
Customer Support
Please have the following information ready when you contact customer support.
• 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.
METHOD
LOCATION
SUPPORT E-MAIL TELEPHONE WEB SITE
REGULAR MAIL
SALES E-MAIL FAX FTP SITE
CORPORATE
HEADQUARTERS
(WORLDWIDE)
[email protected] [phone] www.zyxel.com
www.europe.zyxel.com
ZyXEL Communications Corp.
6 Innovation Road II
Science Park
Hsinchu 300
Ta i w a n
[email protected] [phone] ftp.zyxel.com
ftp.europe.zyxel.com
COSTA RICA
[email protected] [phone] www.zyxel.co.cr ZyXEL Costa Rica
Plaza Roble Escazú
Etapa El Patio, Tercer Piso
San José, Costa Rica
[email protected] [phone] ftp.zyxel.co.cr
CZECH REPUBLIC
[email protected] [phone] www.zyxel.cz ZyXEL Communications
Czech s.r.o.
Modranská 621
143 01 Praha 4 - Modrany
Ceská Republika
[email protected] [phone]
DENMARK
[email protected] [phone] www.zyxel.dk ZyXEL Communications A/S
Columbusvej
2860 Soeborg
Denmark
[email protected] [phone]
FINLAND
[email protected] [phone] www.zyxel.fi ZyXEL Communications Oy
Malminkaari 10
00700 Helsinki
Finland
[email protected] [phone]
FRANCE
[email protected] [phone] www.zyxel.fr ZyXEL France
1 rue des Vergers
Bat. 1 / C
69760 Limonest
France
[phone]
GERMANY
[email protected] [phone] www.zyxel.de ZyXEL Deutschland GmbH.
Adenauerstr. 20/A2 D-52146
Wuerselen
Germany
[email protected] [phone]
HUNGARY
[email protected] [phone] www.zyxel.hu ZyXEL Hungary
48, Zoldlomb Str.
H-1025, Budapest
Hungary
[email protected] [phone]
KAZAKHSTAN
http://zyxel.kz/support [phone] www.zyxel.kz ZyXEL Kazakhstan
43, Dostyk ave.,Office 414
Dostyk Business Centre
050010, Almaty
Republic of Kazakhstan
[email protected] [phone]
NORTH AMERICA
[email protected] 1-800-255-4101
[phone]
www.us.zyxel.com ZyXEL Communications Inc.
1130 N. Miller St.
Anaheim
CA 92806-2001
U.S.A.
[email protected] [phone] ftp.us.zyxel.com

ES-2048 User’s Guide
8Customer Support
+” is the (prefix) number you enter to make an international telephone call.
NORWAY
[email protected] [phone] www.zyxel.no ZyXEL Communications A/S
Nils Hansens vei 13
0667 Oslo
Norway
[email protected] [phone]
POLAND
[email protected] [phone] www.pl.zyxel.com ZyXEL Communications
ul. Okrzei 1A
03-715 Warszawa
Poland
[phone]
RUSSIA
http://zyxel.ru/support [phone] www.zyxel.ru ZyXEL Russia
Ostrovityanova 37a Str.
Moscow, 117279
Russia
[email protected] [phone]
SPAIN
[email protected] [phone] www.zyxel.es ZyXEL Communications
Arte, 21 5ª planta
28033 Madrid
Spain
[email protected] [phone]
SWEDEN
[email protected] [phone] www.zyxel.se ZyXEL Communications A/S
Sjöporten 4, 41764 Göteborg
Sweden
[email protected] [phone]
UKRAINE
[email protected] [phone] www.ua.zyxel.com ZyXEL Ukraine
13, Pimonenko Str.
Kiev, 04050
Ukraine
[email protected] [phone]
UNITED KINGDOM
[email protected] [phone]
08707 555779 (UK only)
www.zyxel.co.uk ZyXEL Communications UK
Ltd.,11 The Courtyard,
Eastern Road, Bracknell,
Berkshire, RG12 2XB,
United Kingdom (UK)
[email protected] [phone] ftp.zyxel.co.uk
METHOD
LOCATION
SUPPORT E-MAIL TELEPHONE WEB SITE
REGULAR MAIL
SALES E-MAIL FAX FTP SITE