D-Link DSS-5 - 10/100 Switch, Desktop User manual

DSS-5+
5-port 10/100Mbps Switch
User’s Guide
Rev. 03 (MAR. 2001)
6012-9830016
Printed In Taiwan
RECYCLABLE

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TABLE OF CONTENTS
TABLE OF CONTENTS ................................... I
ABOUT THIS GUIDE .................................... III
PURPOSE...............................................................III
TERMS/USAGE .......................................................III
OVERVIEW OF THIS USER’S GUIDE ............................III
INTRODUCTION .............................................. 1
FAST ETHERNET TECHNOLOGY .................................. 1
SWITCHING TECHNOLOGY......................................... 2
FEATURES.............................................................. 3
UNPACKING AND SETUP.............................. 5
UNPACKING ........................................................... 5
SETUP ................................................................... 5
IDENTIFYING EXTERNAL COMPONENTS
.............................................................................. 6
FRONT PANEL......................................................... 6
REAR PANEL .......................................................... 6
LED INDICATORS.................................................... 7
CONNECTING THE SWITCH........................ 8
PC TO SWITCH........................................................ 8
HUB TO SWITCH ...................................................... 8
SWITCH TO SWITCH (OTHER DEVICES)......................... 8

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PORT SPEED & DUPLEX MODE .................................. 9
TECHNICAL SPECIFICATIONS................. 10

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ABOUT THIS GUIDE
Congratulations on your purchase of the 5-Port 10/100M
Switch. This device integrates 100Mbps Fast Ethernet and
10Mbps Ethernet network capabilities in a highly flexible
desktop package.
Purpose
This manual discusses how to install your 5-Port 10/100M
Switch.
Terms/Usage
In this guide, the term “Switch” (first letter upper case)
refers to your 5-Port 10/100M Switch, and ”switch” (first
letter lower case) refers to other Ethernet switches.
Overview of this User’s Guide
Introduction. Describes the Switch and its features.
Unpacking and Setup. Helps you get started with the basic installation of
the Switch.
Identifying External Components. Describes the front panel, rear panel and
LED indicators of the Switch.
Connecting the Switch. Tells how you can connect the Switch to your
Ethernet network.
Appendix A, Technical Specifications. Lists the technical (general, physical
and environmental, and performance) specifications of the Switch.

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INTRODUCTION
This chapter describes the features of the Switch and some
background information about Ethernet/Fast Ethernet
switching 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 have been proposed to provide
greater bandwidth and improve client/server response times.
Among them, 100BASE-T (Fast Ethernet) provides a non-
disruptive, smooth evolution from the current 10BASE-T
technology. The non-disruptive and smooth evolution
nature, and the dominating potential market base, virtually
guarantee cost effective and high performance Fast Ethernet
solutions in the years to come.
100Mbps Fast Ethernet is a new 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 CSMA/CD
Ethernet protocol. Since the 100Mbps Fast Ethernet is
compatible with all other 10Mbps Ethernet environments, it
provides a straightforward upgrade path and takes
advantage of the existing investment in hardware, software,
and personnel training.

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Switching Technology
Another approach to pushing beyond the limits of Ethernet
technology is the development of switching technology. A
switch bridges Ethernet packets at the MAC address level of
the Ethernet protocol. It transmits packets among connected
Ethernet or Fast Ethernet LAN segments.
Switching is a cost-effective way of increasing the total
network bandwidth available to users on a local area
network. A switch divides a local area network into
multiple, separate segments. Each segment has it’s own full
Ethernet or Fast Ethernet bandwidth that doesn’t compete
with the other segments for network transmission.
The switch acts as a high-speed selective bridge between the
individual segments. The switch, without interfering with
any other segments, automatically forwards traffic that
needs to go from one segment to another and blocks traffic
that does not need to be transmitted. By doing this the total
network bandwidth is multiplied, while still maintaining the
same network cabling and adapter cards.
For Fast Ethernet networks, a switch is an effective way of
eliminating the problem of chaining hubs beyond the “two-
repeater limit.” A switch can be used to split parts of the
network into different collision domains, making it possible
to expand a Fast Ethernet network beyond the 205-meter
network diameter limit. Switches supporting both
traditional 10Mbps Ethernet and 100Mbps Fast Ethernet
are 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. Today switches are an
ideal solution to most kinds of local area network congestion
problems.
Features
The DSS-5+ was designed for easy installation and high
performance in an environment where network traffic and
the number of users increases continuously.
Designed with the small and medium network in mind, the
DSS-5+ comes in a small and compact size. Whether used to
connect 10Mb and 100Mb network segments and servers
together, or to extend an existing switched network, it has
the necessary speed to do the job.
The DSS-5+ is expandable by cascading two or more
switches together. All ports support up to 200Mbps. Any
one of its five ports may be used to cascade to an additional
switch to open a Full-Duplex Fast Ethernet pipe. The DSS-
5+ is a perfect choice for sites planning to upgrade to Fast
Ethernet in the future. Ethernet workgroups can connect to
the DSS-5+ now, and upgraded Fast Ethernet adapters and
hubs can be added anytime later without requiring any
change to the Switch or network configuration.
The Switch combine dynamic memory allocation with store-
and-forward switching to ensure that the buffer is effectively
allocated for each port, while controlling the data flow
between the transmit and receive nodes to guarantee against
all possible packet loss.

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The Switch is an unmanaged 10/100 Fast Ethernet Switch
that offers solutions in accelerating small Ethernet
workgroup bandwidth. Other key features are:
Auto-MDI (media dependent interface) port supports automatic MDI/MDIX
crossover detection function gives true ‘plug and play’ capability without the need of
confusing crossover cables or crossover ports.
Store and forward switching scheme capability. As the result of complete
frame checking and error frame filtering, this scheme prevents error
packages from transmitting among segments.
NWay Auto-negotiation for any port. This allows for auto-sensing of speed
(10/100Mbps) thereby providing you with automatic and flexible solutions in
your network connections.
Flow control for any port. This minimizes dropped packets by sending out
collision signals when the port’s receiving buffer is full. Note that flow
control is only available in half duplex mode.
Data forwarding rate per port is at wire-speed for 100Mbps speed.
Data forwarding rate per port is at wire-speed for 10Mbps speed.
Data filtering rate eliminates all error packets, runts, etc., per port at wire-
speed for 100Mbps speed.
Data filtering rate eliminates all error packets, runts, etc., per port at wire-
speed for 10Mbps speed.

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UNPACKING AND SETUP
This chapter provides unpacking and setup information for
DSS-5+.
Unpacking
Open the shipping cartons of the Switch and carefully
unpacks its contents. The carton should contain the
following items:
One DSS-5+ 5-port 10/100Mbps Switch
One external power adapter
This User’s Guide
If any item is found missing or damaged, please contact your
local reseller for replacement.
Setup
The setup of DSS-5+ can be performed using the following
steps:
The surface must support at least 1.5 Kg for the Switch.
The power outlet should be within 1.82 meters (6 feet) of the Switch.
Visually inspect the DC power jack and make sure that it is fully secured to
the power adapter.
Make sure that there is proper heat dissipation from and adequate
ventilation around the Switch. Do not place heavy objects on the Switch.

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IDENTIFYING EXTERNAL COMPONENTS
This section identifies all the major external components of
the DSS-5+. Both the front and rear panels are shown
followed by a description of each panel feature. The indicator
panel is described in detail in the next chapter.
Front Panel
The figure below shows the front and rear panels of the DSS-
5+ .
DSS-5+ 10/100M Switch
LED Indicator Panel
Refer to the LED Indicator section for detailed
information about each of the hub’s LED indicators.
Rear Panel
DSS-5+ 10/100M Switch
DC Power Jack: Power is supplied through an external AC
power adapter. Check the technical specification section for
information about the AC power input voltage.
Since the switch does not include a power switch, plugging

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its power adapter into a power outlet will immediately power
it on.
Auto-MDI Jacks:
These jacks supports automatic MDI/MDIX crossover detection
function gives true ‘plug and play’ capability without the need of
confusing crossover cables or crossover ports.
With the Auto-MDI function, you just need to plug-in the network
cable to the hub directly and no need to care if the end node is NIC
(Network Interface Card) or switches and hubs.
LED Indicators
Power Indicator (PWR)
This LED indicator lights green when the hub is receiving power,
otherwise, it is off
Link/Act:
This indicator light green when the port is connected to a station, if the
indicator blinking will be transmitting or received data on the
network.
100M:
If this indicator light green, mean this port is connected to a 100M
Fast Ethernet station. Otherwise, this indicators reminds off, mean this
port is connected to a 10M Ethernet station.
FDX/COL:
This LED indicator light green when a respective port is in full duplex
(FDX) mode. Otherwise, it is blinking when collisions are occurring
on the respective port

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CONNECTING THE SWITCH
This chapter describes how to connect the DSS-5+ to your
Fast Ethernet network.
PC to Switch
A PC can be connected to the Switch via a two-pair Category
3,4, or5 UTP/STP straight-through cable. For 100Mbps
operation Category 5 must be used. The PC (equipped with
a RJ-45 10Mb Ethernet or 100Mb Fast Ethernet NIC) should
be connected to any of the 5 ports (1x - 5x) for the DSS-5+.
The LED indicators for PC connection are dependent on the
LAN card capabilities. If the LED indicators do not light
after making a proper connection, check the PC LAN card,
the cable, the Switch conditions and connections.
Hub to Switch
A hub (10 or 100BASE-TX) can be connected to the Switch
via a two-pair Category 3, 4, or 5 UTP/STP straight cable.
For 100Mbps operation a Category 5 cable must be used.
The connection is accomplished from any port of the hub to
any port of the Switch
Switch to Switch (other devices)
The Switch can be connected to another switch or other
devices (routers, bridges, etc.) via a two-pair Category 3, 4, 5
UTP/STP straight or crossover cable. A Category 5 cable
must be used for 100Mbps operation. The connection can be
done from any (MDI-X) port of the Switch (Switch A) to any
of the 10Mbps, 100Mbps (MDI-X) port of the other switch

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(switch B) or other devices.
Port Speed & Duplex Mode
After plugging the selected cable to a specific port, the
system uses auto-negotiation to determine the transmission
mode for any new twisted-pair connection:
If the attached device does not support auto-
negotiation or has auto-negotiation disabled, an auto-
sensing process is initiated to select the speed and set the
duplex mode to half-duplex

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0
TECHNICAL SPECIFICATIONS
General
Standards IEEE 802.3 10Base-T Ethernet
IEEE 802.3u 100 Base-TX Fast Ethernet
ANSI/IEEE Std 802.3 NWay auto-negotiation
IEEE 802.3x Full duplex Flow Control
Protocol CSMA/CD
Data Transfer
Rate
Ethernet: 10Mbps (half duplex)
20Mbps (full duplex)
Fast Ethernet: 100Mbps (half duplex)
200Mbps (full duplex)
Topology Star
Network Cables 10BASET: 2-pair UTP Cat. 3,4,5 (100 m), EIA/TIA-
568 100-ohm STP
100BASE-TX: 2-pair UTP Cat. 5 (100 m), EIA/TIA-
568 100-ohm STP
Number of Ports 5 x 10/100Mbps NWay Auto-MDI ports

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Physical and Environmental
DC inputs 7.5VDC/1A
Power
Consumption 7.5 watts. (max.)
Temperature Operating: 0°~ 50°C
Storage: -10°~ 70°C
Humidity Operating: 10% ~ 90%
Storage: 5% ~ 90%
Dimensions 116 x70 x 25 mm (W x H x D)
EMI: FCC Class B, CE Mark B, VCCI-B
Performance
Transmission
Method: Store-and-forward
RAM Buffer 128Kbytes per device
Filtering
Address
Table:
4K entries per device
Packet
Filtering/For
warding Rate:
10Mbps Ethernet: 14,880/pps
100Mbps Fast Ethernet: 148,800/pps
MAC Address
Learning: Automatic update

FCC Certifications
This equipment 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
equipment 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 equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following
measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
Shielded interface cables must be used in order to comply with emission limits.
You are cautioned that changes or modifications not expressly approved by the party
responsible for compliance could void your authority to operate the equipment.
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, and (2)
This device must accept any interference received, including interference that may
cause undesired operation.
CE Mark Warning
This is a Class B product. In a domestic environment, this product may
cause radio interference, in which case the user may be required to take
adequate measures.
VCCI Warning

LIMITED WARRANTY
D-Link provides this limited warranty for its product only to the person or
entity who originally purchased the product from D-Link or its authorized
reseller or distributor.
Limited Hardware Warranty: D-Link warrants that the hardware
portion of the D-Link products described below (“Hardware”) will be free
from material defects in workmanship and materials from the date of
original retail purchase of the Hardware, for the period set forth below
applicable to the product type (“Warranty Period”) if the Hardware is used
and serviced in accordance with applicable documentation; provided that a
completed Registration Card is returned to an Authorized D-Link Service
Office within ninety (90) days after the date of original retail purchase of the
Hardware. If a completed Registration Card is not received by an
authorized D-Link Service Office within such ninety (90) period, then the
Warranty Period shall be ninety (90) days from the date of purchase.
Product Type Warranty Period
Product (excluding power supplies and fans) One (1) Year
Power Supplies and Fans One (1) Year
Spare parts and spare kits Ninety (90) days
D-Link’s sole obligation shall be to repair or replace the defective Hardware
at no charge to the original owner. Such repair or replacement will be
rendered by D-Link at an Authorized D-Link Service Office. The
replacement Hardware need not be new or of an identical make, model or
part; D-Link may in its discretion may replace the defective Hardware (or
any part thereof) with any reconditioned product that D-Link reasonably
determines is substantially equivalent (or superior) in all material respects
to the defective Hardware. The Warranty Period shall extend for an
additional ninety (90) days after any repaired or replaced Hardware is
delivered. If a material defect is incapable of correction, or if D-Link
determines in its sole discretion that it is not practical to repair or replace
the defective Hardware, the price paid by the original purchaser for the
defective Hardware will be refunded by D-Link upon return to D-Link of the
defective Hardware. All Hardware (or part thereof) that is replaced by D-
Link, or for which the purchase price is refunded, shall become the property
of D-Link upon replacement or refund.

Limited Software Warranty: D-Link warrants that the software portion
of the product (“Software”) will substantially conform to D-Link’s then
current functional specifications for the Software, as set forth in the
applicable documentation, from the date of original delivery of the Software
for a period of ninety (90) days (“Warranty Period”), if the Software is
properly installed on approved hardware and operated as contemplated in
its documentation. D-Link further warrants that, during the Warranty
Period, the magnetic media on which D-Link delivers the Software will be
free of physical defects. D-Link’s sole obligation shall be to replace the non-
conforming Software (or defective media) with software that substantially
conforms to D-Link’s functional specifications for the Software. Except as
otherwise agreed by D-Link in writing, the replacement Software is
provided only to the original licensee, and is subject to the terms and
conditions of the license granted by D-Link for the Software. The Warranty
Period shall extend for an additional ninety (90) days after any replacement
Software is delivered. If a material non-conformance is incapable of
correction, or if D-Link determines in its sole discretion that it is not
practical to replace the non-conforming Software, the price paid by the
original licensee for the non-conforming Software will be refunded by D-
Link; provided that the non-conforming Software (and all copies thereof) is
first returned to D-Link. The license granted respecting any Software for
which a refund is given automatically terminates.
What You Must Do For Warranty Service:
Registration Card. The Registration Card provided at the back of this
manual must be completed and returned to an Authorized D-Link Service
Office for each D-Link product within ninety (90) days after the product is
purchased and/or licensed. The addresses/telephone/fax list of the nearest
Authorized D-Link Service Office is provided in the back of this manual.
FAILURE TO PROPERLY COMPLETE AND TIMELY RETURN THE
REGISTRATION CARD MAY AFFECT THE WARRANTY FOR THIS
PRODUCT.
Submitting A Claim. Any claim under this limited warranty must be
submitted in writing before the end of the Warranty Period to an Authorized
D-Link Service Office. The claim must include a written description of the
Hardware defect or Software nonconformance in sufficient detail to allow D-
Link to confirm the same. The original product owner must obtain a Return
Material Authorization (RMA) number from the Authorized D-Link Service
Office and, if requested, provide written proof of purchase of the product

(such as a copy of the dated purchase invoice for the product) before the
warranty service is provided. After an RMA number is issued, the defective
product must be packaged securely in the original or other suitable shipping
package to ensure that it will not be damaged in transit, and the RMA
number must be prominently marked on the outside of the package. The
packaged product shall be insured and shipped to D-Link, 53 Discovery
Drive, Irvine CA 92618, with all shipping costs prepaid. D-Link may reject
or return any product that is not packaged and shipped in strict compliance
with the foregoing requirements, or for which an RMA number is not visible
from the outside of the package. The product owner agrees to pay D-Link’s
reasonable handling and return shipping charges for any product that is not
packaged and shipped in accordance with the foregoing requirements, or
that is determined by D-Link not to be defective or non-conforming.
What Is Not Covered:
This limited warranty provided by D-Link does not cover:
Products that have been subjected to abuse, accident, alteration,
modification, tampering, negligence, misuse, faulty installation, lack of
reasonable care, repair or service in any way that is not contemplated in the
documentation for the product, or if the model or serial number has been
altered, tampered with, defaced or removed;
Initial installation, installation and removal of the product for repair, and
shipping costs;
Operational adjustments covered in the operating manual for the product,
and normal maintenance;
Damage that occurs in shipment, due to act of God, failures due to power
surge, and cosmetic damage; and
Any hardware, software, firmware or other products or services provided by
anyone other than D-Link.
Disclaimer of Other Warranties: EXCEPT FOR THE LIMITED
WARRANTY SPECIFIED HEREIN, THE PRODUCT IS PROVIDED “AS-
IS” WITHOUT ANY WARRANTY OF ANY KIND INCLUDING, WITHOUT
LIMITATION, ANY WARRANTY OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IF ANY
IMPLIED WARRANTY CANNOT BE DISCLAIMED IN ANY TERRITORY

WHERE A PRODUCT IS SOLD, THE DURATION OF SUCH IMPLIED
WARRANTYSHALL BE LIMITED TO NINETY (90) DAYS. EXCEPT AS
EXPRESSLY COVERED UNDER THE LIMITED WARRANTY PROVIDED
HEREIN, THE ENTIRE RISK AS TO THE QUALITY, SELECTION AND
PERFORMANCE OF THE PRODUCT IS WITH THE PURCHASER OF
THE PRODUCT.
Limitation of Liability: TO THE MAXIMUM EXTENT PERMITTED BY
LAW, D-LINK IS NOT LIABLE UNDER ANY CONTRACT, NEGLIGENCE,
STRICT LIABILITY OR OTHER LEGAL OR EQUITABLE THEORY FOR
ANY LOSS OF USE OF THE PRODUCT, INCONVENIENCE OR DAMAGES
OF ANY CHARACTER, WHETHER DIRECT, SPECIAL, INCIDENTAL OR
CONSEQUENTIAL (INCLUDING, BUT NOT LIMITED TO, DAMAGES
FOR LOSS OF GOODWILL, WORK STOPPAGE, COMPUTER FAILURE
OR MALFUNCTION, LOSS OF INFORMATION OR DATA CONTAINED
IN, STORED ON, OR INTEGRATED WITH ANY PRODUCT RETURNED
TO D-LINK FOR WARRANTY SERVICE) RESULTING FROM THE USE
OF THE PRODUCT, RELATING TO WARRANTY SERVICE, OR ARISING
OUT OF ANY BREACH OF THIS LIMITED WARRANTY, EVEN IF D-
LINK HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGES. THE SOLE REMEDY FOR A BREACH OF THE FOREGOING
LIMITED WARRANTY IS REPAIR, REPLACEMENT OR REFUND OF
THE DEFECTIVE OR NON-CONFORMING PRODUCT.
GOVERNING LAW:This Limited Warranty shall be governed by the laws
of the state of California.
Some states do not allow exclusion or limitation of incidental or consequential
damages, or limitations on how long an implied warranty lasts, so the foregoing
limitations and exclusions may not apply. This limited warranty provides
specific legal rights and the product owner may also have other rights which
vary from state to state.
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Copyright 1999 D-Link Corporation. Contents subject to change
without prior notice. D-Link is a registered trademark of D-Link
Corporation/D-Link Systems, Inc. All other trademarks belong to
their respective proprietors.
Copyright Statement