ZyXEL Communications ETHERNET SWITCHES ES-1016 User manual

Dimension
ES-1016/ES-1024
Ethernet Switch
User’s Guide
January 2003

Dimension ES-1016/ES-1024 Ethernet Switch
ii Copyright
Copyright
Copyright © 2003 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 patents 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
Trademarks mentioned in this publication are used for identification purposes only and may be properties of
their respective owners.

Dimension ES-1016/ES-1024 Ethernet Switch
ZyXEL Limited Warranty iii
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 (2) 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 value, and will be solely at the discretion of ZyXEL. This warranty shall not apply if the
product is 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 of character 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.

Dimension ES-1016/ES-1024 Ethernet Switch
iv Interference Statements and Warnings
Interference Statements and Warnings
FCC Interference Statement
This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference.
(2) This device must accept any interference received, including interference that may cause undesired
operations.
FCC Warning
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to
Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a commercial environment. This equipment 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 equipment 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 BCIQ A Warning
Certifications
Refer to the product page at www.zyxel.com.

Dimension ES-1016/ES-1024 Ethernet Switch
Customer Support v
Customer Support
If you have questions about your ZyXEL product or desire assistance, contact ZyXEL Communications
Corporation offices worldwide, in one of the following ways:
Contacting Customer Support
• When you contact your customer support representative, have the following information ready:
• Product model and serial number.
• Warranty information.
• Date you received your product.
• Brief description of the problem and the steps you took to solve it.
Method
Location
e-mail
Support/Sales
Telephone/Fax Web Site/ FTP Site Regular Mail
[email protected]
m.tw
[phone] www.zyxel.com
www.europe.zyxel.
com
Worldwide
[e-mail].t
w
[phone] ftp.europe.zyxel.co
m
ZyXEL Communications
Corp., 6 Innovation
Road II, Science-Based
Industrial Park, Hsinchu
300, Taiwan
[email protected]
m
[phone]
800-255-4101
www.zyxel.comNorth America
[e-mail] [phone] ftp.zyxel.com
ZyXEL Communications
Inc., 1650 Miraloma
Avenue, Placentia, CA
92870, U.S.A.
[email protected] [phone] www.zyxel.dkScandinavia
[e-mail] [phone] ftp.zyxel.dk
ZyXEL Communications
A/S, Columbusvej 5,
2860 Soeborg,
Denmark
[email protected] [phone] www.zyxel.deGermany
[e-mail] [phone]
ZyXEL Deutschland
GmbH. Adenauerstr.
20/A2 D-52146
Wuerselen, Germany

Dimension ES-1016/ES-1024 Ethernet Switch
Table of Contents vii
Table of Contents
Copyright .............................................................................................................................................. ii
ZyXEL Limited Warranty..................................................................................................................... iii
Interference Statements and Warnings ............................................................................................iv
Customer Support ............................................................................................................................... v
List of Figures ..................................................................................................................................... ix
List of Tables ....................................................................................................................................... ix
Preface .................................................................................................................................................. x
Chapter 1 Getting to Know Your switch ......................................................................................... 1-1
1.1 Introduction ....................................................................................................................... 1-1
1.2 Features............................................................................................................................ 1-2
1.3 Package Contents............................................................................................................. 1-2
1.4 Applications....................................................................................................................... 1-2
1.4.1 Standalone Workgroup ............................................................................................ 1-2
1.4.2 Bridging.................................................................................................................... 1-3
Chapter 2 Hardware Description and Installation.......................................................................... 2-4
2.1 Desktop Installation........................................................................................................... 2-4
2.2 Rack-Mount Installation ....................................................................................................2-5
2.3 Rear Panel ........................................................................................................................ 2-6
2.4 Rear Panel Power Connection ......................................................................................... 2-6
2.5 Front Panel ....................................................................................................................... 2-6
2.5.1 10Base-T/100Base-TX RJ-45 auto-negotiating ports .............................................. 2-6
2.5.2 Auto-sensing MDI/MDIX ports ................................................................................. 2-7
2.5.3 Front Panel Connections ......................................................................................... 2-7
2.5.4 Front Panel LEDs .................................................................................................... 2-7
Chapter 3 Troubleshooting .............................................................................................................. 3-8
3.1 Introduction ....................................................................................................................... 3-8
3.1.1 PWR LED................................................................................................................. 3-8
3.1.2 LK/ACT LED ............................................................................................................ 3-8
3.1.3 FD/COL LED............................................................................................................ 3-8
3.2 Improper Network Cabling and Topology.......................................................................... 3-9
Appendix A Product Specifications ...................................................................................................A
Index......................................................................................................................................................C

Dimension ES-1016/ES-1024 Ethernet Switch
List of Figures/Tables ix
List of Figures
Figure 1-1 The ES-1016 ........................................................................................................................................1-1
Figure 1-2 The ES-1024 ........................................................................................................................................1-1
Figure 1-3 Standalone ES-1024 Workgroup Example ..........................................................................................1-3
Figure 1-4 Bridging Example................................................................................................................................1-3
Figure 2-1 Attaching Rubber Feet .........................................................................................................................2-4
Figure 2-2 Attaching Mounting Brackets and Screws ..........................................................................................2-5
Figure 2-3 Mounting the ES to an EIA standard 19-inch rack..............................................................................2-5
Figure 2-4 Rear Panel of the ES-1016/ES-1024 ...................................................................................................2-6
Figure 2-5 The Front Panel of the ES-1016 ..........................................................................................................2-6
Figure 2-6 The Front Panel of the ES-1024 ..........................................................................................................2-6
Figure 2-7 The Front Panel LEDs of the ES-1024................................................................................................2-7
List of Tables
Table 2-1 Network Cable Types ............................................................................................................................2-7
Table 2-2 The Front Panel LED Descriptions .......................................................................................................2-7
Table 3-1 Troubleshooting Power LED.................................................................................................................3-8
Table 3-2 Troubleshooting LK/ACT LED ............................................................................................................3-8
Table 3-3 Troubleshooting FD/COL LED.............................................................................................................3-8
Table 3-4 Troubleshooting Improper Network Cabling and Topology.................................................................3-9

Dimension ES-1016/ES-1024 Ethernet Switch
xPreface
Preface
Congratulations on your purchase of the Dimension ES-1016/ES-1024 Ethernet Switch.
About the Dimension ES-1016/ES-1024 Ethernet Switches
The Dimension ES-1016/ES-1024 switch is a cost effective Fast Ethernet switch ideal for setting up a small
workgroup or for bridging two separate networks.
The ES-1016 comes with 16 10/100M ports and the ES-1024 with 24 10/100M ports.
General Syntax Conventions
For brevity’s sake, we will use “e.g.” as shorthand for “for instance”, and “i.e.” as shorthand for “that is” or “in
other words” throughout this manual.
The Dimension ES-1016/ES-1024 Ethernet Switch will be referred to as ES-1016/ES-1024 or the switch in this
manual.
Unless specified, images of the ES-1024 are used throughout this document. The ES-1016 has 16 available
Ethernet ports however the images used in this User’s Guide show the 24 available ports that are featured on the
ES-1024. Images that directly relate to the ES-1016 are used when referring to the key differences between the
two models.
Related Documentation
ZyXEL Web Site
The ZyXEL download library at www.zyxel.com contains additional support documentation and an online
glossary of networking terms.

Dimension ES-1016/ES-1024 Ethernet Switch
Troubleshooting 1-1
Chapter 1
Getting to Know Your switch
This chapter describes the key features, benefits and applications of your switch.
1.1 Introduction
The switch is a multi-port switch that can be used to build high-performance switched workgroup networks.
The switch is a store-and-forward device that offers low latency for high-speed networking. The switch is
designed for workgroups, departments or backbone computing environments for SME (small, medium
enterprise) businesses.
Figure 1-1 The ES-1016
Figure 1-2 The ES-1024

Dimension ES-1016/ES-1024 Ethernet Switch
1-2 Troubleshooting
1.2 Features
The following are the essential features of the switch.
• Conforms to IEEE 802.3, 802.3u, and 802.3x standards.
• Auto-negotiating 10/100Mbps Ethernet RJ-45 ports.
• Auto-sensing crossover for all 10/100Mbps Ethernet RJ-45 ports.
• Supports Back-Pressure-Base flow control on Half-duplex ports.
• Supports Pause-Frame-Base flow control on Full-duplex ports.
• Supports store-and-forward switching.
• Supports automatic address learning.
• Full wire speed forwarding rate.
• Embedded 8K MAC address table providing 8000 MAC addresses entries.
• Power, LK/ACT and FD/COL LEDs.
• Standard 19-inch rack-mount design.
1.3 Package Contents
Compare the contents of your ES-1016/ES-1024 Ethernet Switch package with the checklist below. If any
item is missing or damaged, please contact your local dealer.
• ES-1016/ES-1024 Ethernet switch
• Power cord
• This User’s Guide
• Four self-adhesive rubber feet
• Rack mount brackets
1.4 Applications
This section provides two network topology examples in which the switch is used.
1.4.1 Standalone Workgroup
The switch can be used as a standalone switch to which computers, servers and printer server are directly
connected to form a small workgroup.

Dimension ES-1016/ES-1024 Ethernet Switch
Troubleshooting 1-3
Figure 1-3 Standalone ES-1024 Workgroup Example
1.4.2 Bridging
With its large address table (8000 MAC address entries) and high performance, the switch is an ideal solution
for department networks to connect to the corporate backbone or for connecting network segments.
The following figure depicts a typical segment bridge application of the switch in an enterprise environment.
The two workgroups, the standalone server and the two servers can all communicate with each other and share
all network resources.
Figure 1-4 Bridging Example

Dimension ES-1016/ES-1024 Ethernet Switch
2-4 Troubleshooting
Chapter 2
Hardware Description and Installation
This section shows two switch installations, describes the hardware of the switch and gives a
functional overview of the switch.
The switch is suitable for an office environment where it can be rack mounted on standard EIA racks or as a
standalone.
For proper ventilation, allow at least 4 inches (10 cm) of clearance at the front and
3.4 inches (8 cm) at the back of the switch. This is especially important for
enclosed rack installations.
2.1 Desktop Installation
Step 1. Make sure the switch is clean and dry.
Step 2. Set the switch on a smooth, leveled and sturdy flat space strong enough to support the weight of
the switch and the connected cables. Make sure there is a power outlet nearby.
Step 3. Make sure there is enough clearance around the switch to allow air circulation and the
attachment of cables and the power cord.
Step 4. Remove the adhesive backing from the supplied rubber feet.
Step 5. Attach the rubber feet to each corner on the bottom of the switch. These rubber feet help protect
the switch from shock or vibration and ensure space between devices when stacking.
Figure 2-1 Attaching Rubber Feet
Do not block the ventilation holes. Leave space between switches when stacking.

Dimension ES-1016/ES-1024 Ethernet Switch
Troubleshooting 2-5
2.2 Rack-Mount Installation
The switch can be mounted on an EIA standard size, 19-inch rack or in a wiring closet with other equipment.
Follow the steps below to mount your switch on a standard EIA rack using the included rack-mounting kit.
Step 1. Align one bracket with the holes on one side of the switch and secure it with the bracket screws
smaller than the rack-mouting screws. Similarly, attach the other brackets.
Figure 2-2 Attaching Mounting Brackets and Screws
Step 2. After attaching both mounting brackets, position the switch in the rack by lining up the holes in
the brackets with the appropriate holes on the rack. Secure the switch to the rack with the rack-
mounting screws.
Figure 2-3 Mounting the ES to an EIA standard 19-inch rack

Dimension ES-1016/ES-1024 Ethernet Switch
2-6 Troubleshooting
2.3 Rear Panel
The three-pronged power receptacle is located on the rear panel of the switch. Refer to the Product
Specifications for power specification.
Figure 2-4 Rear Panel of the ES-1016/ES-1024
2.4 Rear Panel Power Connection
Connect one end of the supplied power cord to the power receptacle on the back of the switch and the other
end to the appropriate power source.
2.5 Front Panel
The front panel of the switch includes the auto-negotiating 10Base-T/100Base-TX RJ-45 ports and the LEDs.
Figure 2-5 The Front Panel of the ES-1016
Figure 2-6 The Front Panel of the ES-1024
2.5.1 10Base-T/100Base-TX RJ-45 auto-negotiating ports
Your switch comes with 16 or 24 10Base-T/100Base-TX RJ-45 ports depending on the model of your switch.
The auto-negotiation feature allows the switch to detect the speed of incoming transmission and adjust
appropriately without manual intervention. It allows data transfers of either 10 Mbps or 100 Mbps in either
half- duplex or full-duplex mode depending on your Ethernet network.
LED
24 RJ-45 Ports
LED 16 RJ-45 Ports

Dimension ES-1016/ES-1024 Ethernet Switch
Troubleshooting 2-7
2.5.2 Auto-sensing MDI/MDIX ports
Each 10Base-T/100Base-TX RJ-45 MDI/MDIX port allows you to connect to a computer or to a hub using
either a straight-through or a crossover Ethernet cable.
2.5.3 Front Panel Connections
You can use unshielded twisted pair (UTP) or shielded twisted-pair (STP) Ethernet cables for RJ-45 ports.
The following table describes the types of network cable used for the different connection speeds.
Make sure the cable length between connections does not exceed 100 meters
(328 feet).
Table 2-1 Network Cable Types
SPEED NETWORK CABLE TYPE
10 Base-T 100Ω2-pair UTP/STP Category 3, 4 or 5
100 Base-TX 100Ω2-pair UTP/STP Category 5
2.5.4 Front Panel LEDs
The LED Indicators give real-time information about the status of the switch. The following table provides
descriptions of the LEDs.
Figure 2-7 The Front Panel LEDs of the ES-1024
Table 2-2 The Front Panel LED Descriptions
LED COLOR STATUS DESCRIPTION
PWR Green On The switch is on and receiving power.
Off The switch is not receiving power.
LK/ACT Green On The port is connected to an Ethernet network.
Off The port is not connected to an Ethernet network.
Blinking The port is receiving or transmitting data.
Orange On The port is operating in full-duplex mode.
Blinking Packet collision occurred on this port.
FD/COL
Off The port is operating in half-duplex mode.

Dimension ES-1016/ES-1024 Ethernet Switch
3-8 Troubleshooting
Chapter 3
Troubleshooting
This section describes common problems you may encounter with the switch and possible
solutions.
3.1 Introduction
Troubleshoot the switch using the LEDs to detect problems.
3.1.1 PWR LED
The PWR LED on the front panel does not light up.
Table 3-1 Troubleshooting Power LED
STEPS CORRECTIVE ACTION
1 Check the connections from your switch to the power source. Make sure you are using the
supplied power cord and that you are using an appropriate power source. Refer to the
Product Specifications section.
2 Make sure the power source is turned on and that the switch is receiving sufficient power.
3 If these steps fail to correct the problem, contact your local distributor for assistance.
3.1.2 LK/ACT LED
The LK/ACT LED does not light up when a device is connected.
Table 3-2 Troubleshooting LK/ACT LED
STEPS CORRECTIVE ACTION
1 Verify that the attached device(s) is turned on and properly connected to your switch.
2 Make sure the Network Interface Cards (NICs) are working on the attached devices.
3 Verify that proper network cable type is used and its length does not exceed 100 meters.
For more information on network cable types, see the Front Panel Connections section.
3.1.3 FD/COL LED
The FD/COL LED blinks.
Table 3-3 Troubleshooting FD/COL LED
STEP CORRECTIVE ACTION
0 Some collisions in the network are normal. If the FD/COL LED blinks continuously, proceed
to the steps below.
1 Verify that proper network cable type is used and its length does not exceed 100 meters.
For more information on network cable types, see the Front Panel Connections section.

Dimension ES-1016/ES-1024 Ethernet Switch
Troubleshooting 3-9
Table 3-3 Troubleshooting FD/COL LED
STEP CORRECTIVE ACTION
2 Your network is busy. Try sending large files later, reduce the number of users or segment
your network.
3.2 Improper Network Cabling and Topology
Improper network cabling or topology setup is a common cause of poor network performance or even network
failure.
Table 3-4 Troubleshooting Improper Network Cabling and Topology
DESCRIPTION PROBLEMS AND CORRECTIVE ACTION
Faulty cables Using faulty network cables may affect data rates and have an impact on your
network performance. Replace with new standard network cables.
Non-standard
network cables
Non-standard cables may increase the number of network collisions and
cause other network problems that affect your network performance. Refer to
the Front Panel Connections section for more information on network cable
types.
Cabling Length If you use longer cables than are needed, transmission quality may be
affected.
The network cables should not be longer than the limit of 100 meters.
Too many hubs
between the
computers in the
network
Too many hubs (or repeaters) between the connected computers in the
network may increase the number of network collision or other network
problems. Remove unnecessary hubs from the network.
A loop in the data
path
A data path loop forms when there is more than one path or route between
two networked computers. This results in broadcast storms that will severely
affect your network performance. Make sure there are no loops in your
network topology.