D-Link DSS-5 - 10/100 Switch, Desktop Manuale utente

DSS-5+

5-port 10/100Mbps Switch

User’s Guide

Rev. 03 (MAR. 2001)

6012-9830016

Printed In Taiwan

RECYCLABLE

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

PORT SPEED & DUPLEX MODE .................................. 9

TECHNICAL SPECIFICATIONS................. 10

iii

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.

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.

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.

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.

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.

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.

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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