1. Bitte lesen Sie sich diese Hinweise sorgf鄟tig durch.
2. Heben Sie diese Anleitung f den sp酹ern Gebrauch auf.
3. Vor jedem Reinigen ist das Ger酹 vom Stromnetz zu trennen. Vervenden Sie keine Fl
sig- oder Aerosolreiniger. Am besten dient ein angefeuchtetes Tuch zur Reinigung.
4. Um eine Besch輐igung des Ger酹es zu vermeiden sollten Sie nur Zubeh顤teile verwenden,
die vom Hersteller zugelassen sind.
5. Das Ger酹 is vor Feuchtigkeit zu sch zen.
6. Bei der Aufstellung des Ger酹es ist auf sichern Stand zu achten. Ein Kippen oder Fallen k
霵nte Verletzungen hervorrufen. Verwenden Sie nur sichere Standorte und beachten Sie
die Aufstellhinweise des Herstellers.
7. Die Bel tungs鐪fnungen dienen zur Luftzirkulation die das Ger酹 vor 鈁erhitzung sch
zt. Sorgen Sie daf , daß diese 猈fnungen nicht abgedeckt werden.
8. Beachten Sie beim Anschluß an das Stromnetz die Anschlu腛erte.
9. Die Netzanschlu腠teckdose muß aus Gr den der elektrischen Sicherheit einen
Schutzleiterkontakt haben.
10. Verlegen Sie die Netzanschlu羦eitung so, daß niemand dar er fallen kann. Es sollete
auch nichts auf der Leitung abgestellt werden.
11. Alle Hinweise und Warnungen die sich am Ger酹en befinden sind zu beachten.
12. Wird das Ger酹 er einen l鄚geren Zeitraum nicht benutzt, sollten Sie es vom Stromnetz
trennen. Somit wird im Falle einer 鈁erspannung eine Besch輐igung vermieden.
13. Durch die L tungs鐪fnungen d fen niemals Gegenst鄚de oder Fl sigkeiten in das Ger酹
gelangen. Dies k霵nte einen Brand bzw. Elektrischen Schlag ausl飉en.
14. 猈fnen Sie niemals das Ger酹. Das Ger酹 darf aus Gr den der elektrischen Sicherheit nur
von authorisiertem Servicepersonal ge鐪fnet werden.
15. Wenn folgende Situationen auftreten ist das Ger酹 vom Stromnetz zu trennen und von
einer qualifizierten Servicestelle zu erpr en:
a – Netzkabel oder Netzstecker sint besch輐igt.
b – Fl sigkeit ist in das Ger酹 eingedrungen.
c – Das Ger酹 war Feuchtigkeit ausgesetzt.
d – Wenn das Ger酹 nicht der Bedienungsanleitung ensprechend funktioniert oder Sie mit
Hilfe dieser Anleitung keine Verbesserung erzielen.
e – Das Ger酹 ist gefallen und/oder das Geh酳se ist besch輐igt.
f – Wenn das Ger酹 deutliche Anzeichen eines Defektes aufweist.
16. Bei Reparaturen d fen nur Orginalersatzteile bzw. den Orginalteilen entsprechende Teile
verwendet werden. Der Einsatz von ungeeigneten Ersatzteilen kann eine weitere Besch輐
igung hervorrufen.
17. Wenden Sie sich mit allen Fragen die Service und Repartur betreffen an Ihren
Servicepartner. Somit stellen Sie die Betriebssicherheit des Ger酹es sicher.
Trademarks
All rights reserved, contents subject to change without prior notice.
Ethernet is a trademark of Xerox Corporation.
Microsoft Windows is a trademark of Microsoft Corporation.
All other trademarks belong to their respective proprietors.
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.
TABLE OF CONTENTS
0 ABOUT THIS GUIDE............................................................................ vii
Congratulations on your purchase of the 10/100 Fast Ethernet
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 12-port 10/100 Fast
Ethernet Switch.
Terms/Usage
For simplicity, this documentation uses the terms “Switch” (first
letter upper case) to refer to your 12-port 10/100 Fast Ethernet
Switch, and “switch” (first letter lower case) to refer to all Ethernet
switches, including your 12-port Switch.
Overview of this User’s Guide
♦ Chapter 1, Introduction. Describes the Switch and its
features.
About This Guide vii
10/100 Fast Ethernet Switch User’s Guide
♦ Chapter 2, Unpacking and Setup. Helps you get started
with the basic installation of the Switch.
♦ Chapter 3, Identifying External Components. Describes the
front panel, rear panel and LED indicators of the Switch.
♦ Chapter 4, Connecting the Switch. Tells how you can
connect the your Switch to your Ethernet network.
♦ Appendix A, Technical Specifications. Lists the technical
(general, physical and environmental, and performance)
specifications of the Switch.
♦ Appendix B, RJ-45 Pin Specification. Describes the RJ-45
receptacle/connector and the straight and crossover cable
connector.
viiiAbout This Guide
10/100 Fast Ethernet Switch User’s Guide
1
1 INTRODUCTION
This section describes the features of the 12-port Switch, as well as
giving some background information about Ethernet and 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, Fast Ethernet, or
100Base-T, 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 and
takes advantage of the company’s existing investment in
hardware, software, and personnel training.
Introduction 1
10/100 Fast Ethernet Switch User’s Guide
Switching Technology
Another approach to pushing beyond the limits of Ethernet
technology is the development of switching technology. A switch
bridge's 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 which don’t compete with each other for network
transmission capacity, giving a decreased load on each.
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. This allows the total network
capacity to be multiplied, while still maintaining the same network
cabling and adapter cards.
For Fast 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, 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.
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
2Introduction
10/100 Fast Ethernet Switch User’s Guide
maintenance required make routers relatively impractical. Today
switches are an ideal solution to most kinds of local area network
congestion problems.
Features
The Switch is designed for easy installation and high performance
in an environment where traffic on the network and the number of
users increase continuously.
The Switch with its rack size is specifically designed for network
workgroups. The Switch provides immediate access to a rapidly
growing network through a wide range of user-reliable functions.
The Switch is ideal for deployment with multiple high-speed
servers for shared bandwidth 10Mbps or 100Mbps workgroups. In
200Mbps full-duplex mode, any port can provide workstations with
a congestion-free data pipe for simultaneous access to the server.
The Switch is expandable by cascading two or more switches
together. As all ports support 200Mbps full duplex, the Switch can
be cascaded from any port and to any number of switches.
The Switch is a perfect choice for site planning to upgrade to Fast
Ethernet in the future. Ethernet workgroups can connect to the
Switch now, and change adapters and hubs anytime later without
needing to change the Switch or reconfigure the network.
The Switch combines dynamic memory allocation with store-andforward 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.
Other key features are:
Introduction 3
10/100 Fast Ethernet Switch User’s Guide
♦ Twelve N-Way UTP/STP ports all come with auto-negotiation
and operate at 10/100 Mbps for connection to servers and hubs.
All ports can be configured for full or half-duplex operation.
♦ Uplink/MDI-II (media dependent interface) port for
uplinking to another switch, hub or repeater. Please note
that if you are using the uplink port, you will not be able to
use port one (1x) because these ports are logically connected.
Performance Features
• 10/100Mbps Auto-Negotiation and Auto-Sensing on All Ports