DES-1008D_Manual.pdf

DES-1008D/ DSS-8+

8-Port 10/100Mbps Switch

Manual

RECYCLABLE

(Sep., 2006)

Rev.1.04

6DES1008D.07G

T ABLE OF C ONTENTS

ABOUT THIS GUIDE ................................................................ 1

P URPOSE .............................................................................................1

C ONVENTIONS ......................................................................................1

INTRODUCTION ....................................................................... 2

F AST E THERNET T ECHNOLOGY .............................................................2

S WITCHING T ECHNOLOGY .....................................................................2

F EATURES ...........................................................................................4

UNPACKING AND SETUP ....................................................... 6

U NPACKING ..........................................................................................6

S ETUP .................................................................................................6

IDENTIFYING EXTERNAL COMPONENTS ............................ 7

F RONT P ANEL ......................................................................................7

LED I NDICATORS .................................................................................7

R EAR P ANEL ........................................................................................8

CONNECTING THE DES-1008D/ DSS-8+ ............................... 9

C OMPUTER TO DES-1008D/ DSS-8+...................................................9

H UB TO DES-1008D/ DSS-8+ .............................................................9

DES-1008D/ DSS-8+ TO OTHER DEVICES ............................................9

P ORT S PEED & D UPLEX M ODE ...........................................................10

MOUNTING THE SWITCH ON A WALL ................................ 11

TECHNICAL SPECIFICATIONS ............................................ 12

RJ-45 PIN SPECIFICATION ................................................... 14

A BOUT T HIS G UIDE

Congratulations on your purchase of the DES-1008D/ DSS-8+

Switch. This device integrates 100Mbps Fast Ethernet and 10Mbps

Ethernet network capabilities into one high-performance, easy-to-

use solution.

Purpose

This manual will familiarize you with the DES-1008D/ DSS-8+

Switch and guide you through the installation process.

Conventions

For simplicity, this documentation uses the term “Switch” (first letter

upper case) to refer to the DES-1008D/ DSS-8+ Ethernet Switch,

and “switch” (first letter lower case) to refer to other Ethernet

switches.

I NTRODUCTION

Fast Ethernet Technology

The growing importance of LANs and the increasing complexity of

desktop computing applications are fueling the need for high

performance networks. 100BASE-T (Fast Ethernet) provides a cost-

effective and high-performance solution for small workgroups,

SMBs ( Small to Medium Businesses ), and any network supporting

bandwidth-intensive applications. Fast Ethernet technology

operates at 10 times the speed of traditional Ethernet, offering

maximum performance and enhanced capability for existing

Ethernet-based networks.

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 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

Switching is a cost-effective way of increasing the total network

capacity available to users on a LAN. If an Ethernet network begins

to display symptoms of congestion, low throughput, slow response

times, and high rates of collision, installing a switch to a network

can preserve much or all of the existing network's cabling and

workstation interface card infrastructure, while still greatly

enhancing the throughput for users. A switch is a viable solution

even if demanding applications, such as multimedia production and

video conferencing, are on the horizon. The most promising

techniques, as well as the best return on investment, could well

consist of installing the right mixture of Ethernet switches.

A switch increases capacity and decreases network loading by

dividing a local area network into different LAN segments. Dividing

a LAN into multiple segments is one of the most common ways of

increasing available bandwidth. If segmented correctly, most

network traffic will remain within a single segment, enjoying the full-

line speed bandwidth of that segment.

Switches provide full-line speed and dedicated bandwidth for all

connections. This is in contrast to hubs, which use the traditional

shared networking topology, where the connected nodes contend

for the same network bandwidth. When two switching nodes are

communicating, they are connected with a dedicated channel

between them, so there is no contention for network bandwidth with

other nodes. As a result, the switch reduces considerably, the

likelihood of traffic congestion.

For 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 your Ethernet

network beyond the 205-meter network diameter limit for 100BASE-

TX networks. Switches supporting both 10Mbps Ethernet and

100Mbps Fast Ethernet are also ideal for bridging between existing

10Mbps networks and newer 100Mbps networks.

Switching LAN technology is a marked improvement over the

previous generation of network hubs and bridges, which were

characterized by higher latencies. Routers have also been used to

segment local area networks, but the cost of a router, the setup and

maintenance required, make routers relatively impractical. Today

switches are an ideal solution for most kinds of local area network

congestion problems.

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