D-Link DGS-1016D - Switch User manual

D-Link ™ DGS-1016D
DGS-1024D
16/24-Port 10/100/1000Mbps
Gigabit Ethernet Switch
Manual
Building Networks for People
RECYCLABLE
(February, 2005)
P/N : 6DGS1024D.01

D-Link DGS-1016D/DGS-1024D Unmanaged Gigabit Ethernet Switch
Information in this document is subject to change without notice.
© 2005 D-Link Computer Corporation. All rights reserved.
Reproduction in any manner whatsoever without the written permission of D-Link Computer Corporation
is strictly forbidden.
Trademarks used in this text: D-Link and the D-LINK logo are trademarks of D-Link Computer
Corporation; Microsoft and Windows are registered trademarks of Microsoft Corporation.
Other trademarks and trade names may be used in this document to refer to either the entities claiming the
marks and names or their products. D-Link Computer Corporation disclaims any proprietary interest in
trademarks and trade names other than its own.
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 when the equipment is operated in a commercial environment. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and used in accordance with this user’s
guide, 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.
Warnung!
Dies ist ein Produkt der Klasse A. Im Wohnbereich kann dieses Produkt
Funkstoerungen verursachen. In diesem Fall kann vom Benutzer verlangt werden,
angemessene Massnahmen zu ergreifen.
Precaución!
Este es un producto de Clase A. En un entorno doméstico, puede causar interferencias
de radio, en cuyo case, puede requerirse al usuario para que adopte las medidas
adecuadas.
Attention!
Ceci est un produit de classe A. Dans un environnement domestique, ce produit
pourrait causer des interférences radio, auquel cas l`utilisateur devrait prendre les
mesures adéquates.
Attenzione!
Il presente prodotto appartiene alla classe A. Se utilizzato in ambiente domestico il prodotto può causare
interferenze radio, nel cui caso è possibile che l`utente debba assumere provvedimenti adeguati.
VCCI Warning

D-Link DGS-1016D/DGS-1024D Unmanaged Gigabit Ethernet Switch
CONTENTS
PREFACE...................................................................................I
NOTES, NOTICES, AND CAUTIONS...........................................I
SAFETY INSTRUCTIONS.......................................................... II
INTRODUCTION........................................................................1
ETHERNET TECHNOLOGY..........................................................................1
SWITCHING TECHNOLOGY.........................................................................3
SWITCH DESCRIPTION...............................................................................4
FRONT-PANEL COMPONENTS....................................................................6
REAR PANEL DESCRIPTION .......................................................................9
INSTALLATION.......................................................................10
PACKAGE CONTENTS ..............................................................................11
BEFORE YOU CONNECT TO THE NETWORK ..............................................11
MOUNTING THE SWITCH ON A RACK........................................................12
ATTACHING THE RUBBER FEET ...............................................................12
PROVIDE FOR ADEQUATE VENTILATION ..................................................13
POWER ON.............................................................................................14
CONNECTING THE SWITCH ..................................................15
SWITCH TO END NODE ...........................................................................15
SWITCH TO HUB OR SWITCH....................................................................17
CONNECTING TO NETWORK BACKBONE OR SERVER.................................18
TECHNICAL SPECIFICATIONS..................................................................19
GLOSSARY................................................................................................21
WARRANTY ..............................................................................................25
WARRANTY (USA ONLY)........................................................................29
REGISTRATION INFORMATION ................................................................35

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Preface
The DGS-1016D/DGS-1024D Manual is divided into sections that describe the system
installation and operating instructions with examples.
Section 1, Introduction - A description of the physical features of the Switch,
including LED indicators, ports, and panel descriptions.
Section 2, Installation – A description of the physical installation of the Switch,
including connecting the Switch to the network and connecting stacked Switch groups.
Section 3, Connecting the Switch – A description of how to connect your Switch to
an end node, hub, Switch, or backbone server.
Appendix A, Technical Specifications - The technical specifications of the DGS-
1016D/DGS-1024D.
Glossary – Lists definitions for terms and acronyms used in this document.
Index – Index of relevant terms in the DGS-1016D/DGS-1024D Manual.
Intended Readers
The DGS-1016D/DGS-1024D Manual contains information for setup and management of the
DGS-1016D/DGS-1024D Switch. This manual is intended for network managers familiar
with network management concepts and terminology.
Notes, Notices, and Cautions
NOTE: A NOTE indicates important
information that helps you make better
use of your device.
NOTICE: A NOTICE indicates either
potential damage to hardware or loss of
data and tells you how to avoid the
problem.
CAUTION: A CAUTION indicates the
potential for property damage, personal
injury, or death.

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Safety Instructions
Use the following safety guidelines to ensure your own personal safety and to help protect
your system from potential damage. Throughout this safety section, the caution icon ( ) is
used to indicate cautions and precautions that you need to review and follow.
Safety Cautions
To reduce the risk of bodily injury, electrical shock, fire, and damage to the equipment,
observe the following precautions.
Observe and follow service markings. Do not service any product except as explained in your
system documentation. Opening or removing covers that are marked with the triangular
symbol with a lightning bolt may expose you to an electrical shock. Only a trained service
technician should service components inside these compartments.
If any of the following conditions occur, unplug the product from the electrical outlet and
replace the part or contact your trained service provider:
– The power cable, extension cable, or plug is damaged.
– An object has fallen into the product.
– The product has been exposed to water.
– The product has been dropped or damaged.
– The product does not operate correctly when you follow the operating
instructions.
• Keep your system away from radiators and heat sources. Also, do not block
cooling vents.
• Do not spill food or liquids on your system components, and never operate the
product in a wet environment. If the system gets wet, see the appropriate section
in your troubleshooting guide or contact your trained service provider.
• Do not push any objects into the openings of your system. Doing so can cause a
fire or an electric shock by shorting out interior components.
• Use the product only with approved equipment.
• Allow the product to cool before removing covers or touching internal
components.
• Operate the product only from the type of external power source indicated on the
electrical ratings label. If you are not sure of the type of power source required,
consult your service provider or local power company.
• To help avoid damaging your system, be sure the voltage selection Switch (if
provided) on the power supply is set to match the power available at your
location:
– 115 volts (V)/60 hertz (Hz) in most of North and South America and some Far
Eastern countries such as South Korea and Taiwan.
– 100 V/50 Hz in eastern Japan and 100 V/60 Hz in western Japan.
– 230 V/50 Hz in most of Europe, the Middle East, and the Far East.

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• Also be sure that attached devices are electrically rated to operate with the power
available in your location.
Safety Instructions (continued)
• Use only approved power cable(s). If you have not been provided with a power
cable for your system or for any AC-powered option intended for your system,
purchase a power cable that is approved for use in your country. The power cable
must be rated for the product and for the voltage and current marked on the
product's electrical ratings label. The voltage and current rating of the cable
should be greater than the ratings marked on the product.
• To help prevent an electric shock, plug the system and peripheral power cables
into properly grounded electrical outlets. These cables are equipped with three-
prong plugs to help ensure proper grounding. Do not use adapter plugs or remove
the grounding prong from a cable. If you must use an extension cable, use a 3-
wire cable with properly grounded plugs.
• Observe extension cable and power strip ratings. Make sure that the total ampere
rating of all products plugged into the extension cable or power strip does not
exceed 80 percent of the ampere ratings limit for the extension cable or power
strip.
• To help protect your system from sudden, transient increases and decreases in
electrical power, use a surge suppressor, line conditioner, or uninterruptible power
supply (UPS).
• Position system cables and power cables carefully; route cables so that they
cannot be stepped on or tripped over. Be sure that nothing rests on any cables.
• Do not modify power cables or plugs. Consult a licensed electrician or your power
company for site modifications. Always follow your local/national wiring rules.
• When connecting or disconnecting power to hot-pluggable power supplies, if
offered with your system, observe the following guidelines:
– Install the power supply before connecting the power cable to the power supply.
– Unplug the power cable before removing the power supply.
– If the system has multiple sources of power, disconnect power from the system
by
unplugging all power cables from the power supplies.
• Move products with care; ensure that all casters and/or stabilizers are firmly
connected to the system. Avoid sudden stops and uneven surfaces.
General Precautions for Rack-
Mountable Products
Observe the following precautions for rack stability and safety. Also refer to the rack
installation documentation accompanying the system and the rack for specific caution
statements and procedures.

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Systems are considered to be components in a rack. Thus, "component" refers to any system
as well as to various peripherals or supporting hardware.
CAUTION: Installing systems in a rack without the front and
side stabilizers installed could cause the rack to tip over,
potentially resulting in bodily injury under certain
circumstances. Therefore, always install the stabilizers
before installing components in the rack.
After installing system/components in a rack, never pull
more than one component out of the rack on its slide
assemblies at one time. The weight of more than one
extended component could cause the rack to tip over and
may result in serious injury.
• Before working on the rack, make sure that the stabilizers are secured to the rack,
extended to the floor, and that the full weight of the rack rests on the floor. Install
front and side stabilizers on a single rack or front stabilizers for joined multiple
racks before working on the rack.

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Safety Instructions (continued)
Always load the rack from the bottom up, and load the heaviest item in the rack first.
Make sure that the rack is level and stable before extending a component from the rack.
Use caution when pressing the component rail release latches and sliding a component into or
out of a rack; the slide rails can pinch your fingers.
After a component is inserted into the rack, carefully extend the rail into a locking position,
and then slide the component into the rack.
Do not overload the AC supply branch circuit that provides power to the rack. The total rack
load should not exceed 80 percent of the branch circuit rating.
Ensure that proper airflow is provided to components in the rack.
Do not step on or stand on any component when servicing other components in a rack.
Protecting Against Electrostatic Discharge
Static electricity can harm delicate components inside your system. To prevent static damage,
discharge static electricity from your body before you touch any of the electronic
components, such as the microprocessor. You can do so by periodically touching an
unpainted metal surface on the chassis.
NOTE: A qualified electrician must perform all
connections to DC power and to safety grounds. All
electrical wiring must comply with applicable local or
national codes and practices.
CAUTION: Never defeat the ground conductor or operate
the equipment in the absence of a suitably installed ground
conductor. Contact the appropriate electrical inspection
authority or an electrician if you are uncertain that suitable
grounding is available.
CAUTION: The system chassis must be positively
grounded to the rack cabinet frame. Do not attempt to
connect power to the system until grounding cables are
connected. Completed power and safety ground wiring
must be inspected by a qualified electrical inspector. An
energy hazard will exist if the safety ground cable is omitted
or disconnected.

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You can also take the following steps to prevent damage from electrostatic discharge (ESD):
1. When unpacking a static-sensitive component from its shipping carton, do not
remove the component from the antistatic packing material until you are ready to
install the component in your system. Just before unwrapping the antistatic
packaging, be sure to discharge static electricity from your body.
2. When transporting a sensitive component, first place it in an antistatic container or
packaging.
3. Handle all sensitive components in a static-safe area. If possible, use antistatic
floor pads, workbench pads, and an antistatic grounding strap.

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SECTION 1
Introduction
Ethernet Technology
Switch Description
Features
Ports
Front-Panel Components
Ethernet Technology
Fast Ethernet Technology
The growing importance of LANs and the increasing
complexity of desktop computing applications are fueling the
need for high performance networks. A number of high-speed
LAN technologies are proposed to provide greater bandwidth
and improve client/server response times. Among them, Fast
Ethernet, or 100BASE-T, provides a non-disruptive, smooth
evolution from 10BASE-T technology.
100Mbps Fast Ethernet is a standard specified by the IEEE
802.3 LAN committee. It is an extension of the 10Mbps
Ethernet standard with the ability to transmit and receive data
at 100Mbps, while maintaining the Carrier Sense Multiple
Access with Collision Detection (CSMA/CD) Ethernet
protocol.

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Gigabit Ethernet Technology
Gigabit Ethernet is an extension of IEEE 802.3 Ethernet
utilizing the same packet structure, format, and support for
CSMA/CD protocol, full-duplex, flow control, and
management objects, but with a tenfold increase in theoretical
throughput over 100Mbps Fast Ethernet and a one hundred-
fold increase over 10Mbps Ethernet. Since it is compatible
with all 10Mbps and 100Mbps Ethernet environments,
Gigabit Ethernet provides a straightforward upgrade without
wasting a company’s existing investment in hardware,
software, and trained personnel.
The increased speed and extra bandwidth offered by Gigabit
Ethernet are essential to coping with the network bottlenecks
that frequently develop as computers and their busses get
faster and more users use applications that generate more
traffic. Upgrading key components, such as your backbone
and servers to Gigabit Ethernet can greatly improve network
response times as well as significantly speed up the traffic
between your sub-networks.
Gigabit Ethernet enables fast optical fiber connections to
support video conferencing, complex imaging, and similar
data-intensive applications. Likewise, since data transfers
occur 10 times faster than Fast Ethernet, servers outfitted with
Gigabit Ethernet NICs are able to perform 10 times the
number of operations in the same amount of time.
In addition, the phenomenal bandwidth delivered by Gigabit
Ethernet is the most cost-effective method to take advantage
of today’s and tomorrow’s rapidly improving switching and
routing internetworking technologies.

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Switching Technology
Another key development pushing the limits of Ethernet
technology is in the field of switching technology. A switch
bridges Ethernet packets at the MAC address level of the
Ethernet protocol transmitting among connected Ethernet or
fast Ethernet LAN segments.
Switching is a cost-effective way of increasing the total
network capacity available to users on a local area network. A
switch increases capacity and decreases network loading by
making it possible for a local area network to be divided into
different segments that do not compete with each other for
network transmission capacity, decreasing the load on each
segment.
The switch acts as a high-speed selective bridge between the
individual segments. Traffic that needs to go from one
segment to another (from one port to another) is automatically
forwarded by the switch, without interfering with any other
segments (ports). This allows the total network capacity to be
multiplied, while still maintaining the same network cabling
and adapter cards.
For Fast Ethernet or Gigabit Ethernet networks, a switch is an
effective way of eliminating problems of chaining hubs
beyond the “two-repeater limit.” A switch can be used to split
parts of the network into different collision domains, for
example, making it possible to expand your Fast Ethernet
network beyond the 205-meter network diameter limit for
100BASE-TX networks. Switches supporting both traditional
10Mbps Ethernet and 100Mbps Fast Ethernet are also ideal
for bridging between existing 10Mbps networks and new
100Mbps networks.

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Switching LAN technology is a marked improvement over the
previous generation of network bridges, which were
characterized by higher latencies. Routers have also been used
to segment local area networks, but the cost of a router and
the setup and maintenance required make routers relatively
impractical. Today’s switches are an ideal solution to most
kinds of local area network congestion problems.
Switch Description
The DGS-1016D/DGS-1024D Switch is equipped with 16 or
24 ports providing dedicated 10, 100, or 1000 Mbps
bandwidth. These ports can be used for connecting PCs,
printers, servers, routers, Switches, and other network
devices. The 16/24 multi-speed ports use standard twisted pair
cabling and are ideal for segmenting networks into small,
connected subnets. Each port can support up to 2000 Mbps of
throughput in full-duplex mode. This stand-alone Switch
enables the network to use some of the most demanding
multimedia and imaging applications concurrently with other
user applications without creating bottlenecks.
Features
The DGS-1016D/DGS-1024D 16/24-Port 10/100/1000BASE-T Gigabit
Ethernet Switch was designed for easy installation and high performance
in an environment where traffic on the network and the number of users
increase continuously.
• Sixteen (16) or twenty-four (24) 10/100/1000BASE-T Gigabit
Ethernet ports
• Cable Diagnostic function at Switch boot up
• Supports Auto-Negotiation for 10/100/1000Mbps and duplex
mode

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• Supports Auto-MDI/MDIX for each port
• Support Full/Half-duplex transfer mode for 10 and 100Mbps
• Support Full-duplex transfer mode for 1000Mbps
• Full wire speed reception and transmission
• Store-and-Forward Switching method
• Supports 8K absolute MAC addresses
• Supports 512 Kbyte RAM for data buffering
• Extensive front-panel diagnostic LEDs
• IEEE 802.3x flow control for Full-duplex
• Back pressure flow control for Half-duplex

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Note: For illustration purposes, the DGS-1016D is used.
Front-Panel Components
The front panel of the Switch consists of LED indicators, 16
or 24 (10/100/1000 Mbps) Ethernet ports.
Figure 1-1. Front Panel View of the Switch
Comprehensive LED indicators display the status of the
Switch and the network.
10/100/1000BASE-T Ports:
Sixteen (16) or twenty-four (24) Gigabit Ethernet, Auto-
Negotiating ports (10/100/1000Mbps)
Comprehensive LED indicators display the conditions of the
Switch and status of the network.
LED Indicators
The LED indicators of the Switch include Power,
100/1000Mbps, and Link/Act. The following shows the LED
indicators for the Switch along with an explanation of each
indicator.

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Figure 1-2. LED Indicators
LED Indicators
Comprehensive LED indicators display the conditions of the Switch and
status of the network. A description of these LED indicators follows
(see LED Indicators). The LED indicators of the Switch include Power,
Link/Act, 1000Mbps, and 100Mbps. The Cable Diagnostic functions of
the Switch are indicated by a combination of the Speed and the Link/Act
LEDs, as described below.
 Power Indicator
This green indicator illuminates when the Switch is receiving
power.
 Link / Act
This green indicator illuminates steadily when a
port is connected to a station successfully and has
a good link. The indicator will blink to indicate
that a port is transmitting or receiving data on the
network.
 Speed —
100Mbps/amber; 1000Mbps/green; 10Mbps/off
This indicator is green when the port is connected to a
1000Mbps Ethernet station. It is unlit when the port is
connected to a 10Mbps Ethernet station or 100Mbps Fast
Ethernet station.
 Cable Diagnostic −LED Indications
When the Switch is first powered on, the Cable
Diagnostic function is initialized and run. The
Cable Diagnostic function will detect three
common faults in an Ethernet cable connecting the
Switch to a remote network device: an open circuit
(a lack of continuity between the pins at each end
of the Ethernet cable or a disconnected cable), a
short circuit (two or more conductors short-

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circuited), and the checking of connectivity for
each of the eight wires of a cable to ensure its
capability for running 1000Mpbs. Any of these
common cable faults will be detected by the Cable
Diagnostic function and the LEDs will display the
results of the Cable Diagnostic function as
follows:
Open, Short, or Improper Connectivity −Speed
LED: Amber −Link/Act LED: Off
Cable connection good −Speed LED: Green −
Link/Act LED: Off
The Cable Diagnostic function operates only during the
Switch boot up (when the Switch is first powered on).
The Cable Diagnostic first scans the 16 or 24 Ethernet ports
to determine if the Ethernet cable is in good working order.
This process is indicated by the Speed LED blinking green
for each of the 16 or 24 ports, sequentially. The initial port
scan takes about 3 seconds. If a cable fault is detected, it is
indicated by the corresponding port’s Speed LED glowing
amber for 5 seconds, after the initial port scan. The Switch is
then reset for normal operation. It takes about 2 seconds for
the Switch to reset. The entire Cable Diagnostic process
takes about 10 seconds from the time the Switch is booted.
So, from the time power is first applied to the Switch, about
10 seconds is required before the Switch will begin normal
operation.
Note: There is no display of cable faults detected by the
Cable Diagnostic function during the normal operation of the
Switch, only when the Switch is booted up or power-cycled.
NOTE: The Cable Diagnostic function does not
support 10M/100M. If the port is connected to a
10M/100M device, see the Link LED to check if
the cable is good or not.

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Rear Panel Description
Power Input:
Internal universal power supply (100-240VAC; 12V/2A,
5V/3A).
Figure 1-3. Rear panel view of the Switch

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SECTION 2
Installation
Package Contents
Before You Connect to the Network
Installing the Switch
Power On
Package Contents
Open the shipping carton of the Switch and carefully unpack
its contents. The carton should contain the following items:
• One DGS-1016D 16-Port/DGS-1024D 24-Port
10/100/1000BASE-T Gigabit Ethernet Switch
• Four rubber feet with adhesive backing
• One power Cord
• Mounting ears for rack-mounting
• This manual
• Quick Installation Guide
If any item is found missing or damaged, please contact your
local D-Link reseller for replacement.

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Before You Connect to the Network
The site where you install the Switch may greatly affect its
performance. Please follow these guidelines for setting up the
Switch.
• Install the Switch on a sturdy, level surface that can
support at least 3 kg (6.6 lbs) of weight. Do not place
heavy objects on the Switch.
• The power outlet should be within 1.82 meters (6 feet)
of the Switch.
• Visually inspect the power cord and see that it is fully
secured to the AC power port.
• Make sure that there is adequate space for proper heat
dissipation from and adequate ventilation around the
Switch. Leave at least 10 cm (4 inches) of space at the
front and rear of the Switch for ventilation.
• Install the Switch in a fairly cool and dry place for the
acceptable temperature and humidity operating ranges.
• Install the Switch in a site free from strong
electromagnetic field generators (such as motors),
vibration, dust, and direct exposure to sunlight.
• When installing the Switch on a level surface, attach
the rubber feet to the bottom of the device. The rubber
feet cushion the Switch, protect the casing from
scratches, and prevent it from scratching other
surfaces.