D-Link DFE-908X User Manual
DFE-908x
DFE-908
Ethernet/Fast Ethernet
Dual-Speed Stackable Hubs
User’s Guide
Rev. 01 (December, 1997)
6DFE908...01
Printed In Taiwan
RECYCLABLE
Wichtige Sicherheitshinweise
1. Bitte lesen Sie sich diese Hinweise sorgfältig durch.
2. Heben Sie diese Anlei tung für den spätern Gebrauch auf.
3. Vor jedem Reinigen ist da s Gerät vom St romne tz zu trennen. V ervenden Sie kei ne Flüssig- oder
Aerosolrei niger. Am besten dient ein ange feuchtetes T uc h z ur Reinigung.
4. Um eine Be schädigung des Gerätes zu vermeiden sollten Sie nur Zubehörteile verwenden, die vom
Hersteller zugelassen sind.
5. Das Gerät is vor Feucht igkeit zu schützen.
6. Bei der Aufstellung des G erätes ist auf sichern Stand zu achten. Ein Kippen oder F allen könnte
Verletzunge n he rvorrufe n. Verwenden Sie nur sichere Standorte und beachten Sie die Aufstellhinweise
des Herstellers.
7. Die Bel üftungsöffnungen dienen zur Luftzirkulation die das Gerät vor Überhitzung schützt. Sorgen S ie
dafür, daß diese Öffnungen nicht abge de ckt werden.
8. Beachten Sie beim Anschluß an das Stromnetz die Anschlußwerte.
9. Die Netzanschlußsteckdose muß aus Gründen der elektrischen Sicherheit einen Schutzleiterkontakt
haben.
10. Verlegen Si e die Netzanschlußleit ung so, daß niemand darübe r fallen kann. Es sollete a uc h nichts auf
der Leitung abgestellt werden.
11. Alle Hinweise und Wa rnungen die sich am G eräten befinden s ind zu beachten.
12. Wird das Gerät über einen längeren Zeitraum nicht benutzt, sollten Sie es vom Stromnetz trennen.
Somit wird im Falle ei ner Überspannung eine Beschädigung ve rmieden.
13. Durch die Lüftungs öffnungen dürfen niemals Gegenstände ode r Flüssigkeiten in das G e rä t gelangen.
Dies könnte einen Brand bz w . Elektrischen Schlag auslösen.
14. Öffnen Sie nie ma ls das Gerät. Das Gerä t darf aus Gründen der elektrischen S icherheit nur von
authorisiertem Servicepersonal geöffnet werden.
15. Wenn folgende S ituationen auft reten ist da s Gerät vom Stromnetz zu trennen und von einer qualifizierten
Servicestelle zu überprüfen:
a– Netzkabel ode r Netzstec ke r sint beschä digt.
b– Flüssigkeit ist in das Gerät e ingedrungen.
c– Das Gerät war Feuchtigkeit ausgesetzt.
d– Wenn das Gerät nicht der Bedienungsanle itung ensprechend funktioniert oder Sie mit Hilf e dieser
Anleitung keine Verbess e rung e r z ielen.
e– Das Gerät ist gefal len und/oder das Ge hä use ist beschädigt.
f– Wenn das Gerät deutliche Anzeichen eines Defektes aufweist.
16. Bei Re pa ra turen dürfen nur Orginale rsatzteile bzw. den Orginalteile n entsprechende Te ile verwendet
werden. Der Einsatz von ungeeigneten Ersat zteilen kann eine weitere Beschädigung he rvorrufe n.
17. Wenden Sie sich mit all en Fragen die Service und Repartur betreffen an Ihren Servic e pa rtner. Somit
stellen Sie die Betriebssicherheit des Gerätes sicher.
ii
WARRANTIES EXCLUSIVE
IF THE D-LINK PRODUCT DOES NOT OPERATE AS WARRANTED ABOVE, THE CUSTOMER'S
SOLE REMEDY SHALL BE, AT D-LINK'S OPTION, REPAIR OR REPLACEMENT. THE FOREGOING
WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ALL OTHER
WARRANTIES, EXPRESSED OR IMPLIED, EITHER IN FACT OR BY OPERATION OF LAW,
STATUTORY OR OTHERWISE, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE. D-LINK NEITHER ASSUMES NOR AUTHORIZES ANY OTHER
PERSON TO ASSUME FOR IT ANY OTHER LIABILITY IN CONNECTION WITH THE SALE,
INSTALLATION MAINTENANCE OR USE OF D-LINK'S PRODUCTS
D-LINK SHALL NOT BE LIABLE UNDER THIS WARRANTY IF ITS TESTING AND EXAMINATION
DISCLOSE THAT THE ALLEGED DEFECT IN THE PRODUCT DOES NOT EXIS T OR WAS CAUSED
BY THE CUSTOMER'S OR ANY THIRD PERSON'S MISUSE, NEGLECT, IMPROPER INSTALLATION
OR TESTING, UNAUTHORIZED ATTEMPTS TO REPAIR, OR ANY OTHER CAUSE BEYOND THE
RANGE OF THE INTENDED USE, OR BY ACCIDENT, FIRE, LIGHTNING OR OTHER HAZARD.
LIMITATION OF LIABILITY
IN NO EVENT WILL D-LINK BE LIABLE FOR ANY DAMAGES, INCLUDING LOSS OF DATA, LOSS
OF PROFITS, COST OF COVER OR OTHER INCIDENTAL, CONSEQUENTIAL OR INDIRECT
DAMAGES ARISING OUT THE INSTALLATION, MAINTENANCE, USE, PERFORMANCE, FAILURE
OR INTERRUPTION OF A D- LINK PRODUCT, HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY. THIS LIMITATION WILL APPLY EVEN IF D-LINK HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
IF YOU PURCHASED A D-LINK PRODUCT IN THE UNITED STATES, SOME STATES DO NOT
ALLOW THE LIMITATION OR EXCLUSION OF LIABILITY FOR INCIDENTAL OR
CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU.
iii
Limited Warranty
Hardware:
D-Link warrants its hardware products to be free from de fects in workmanship and materials, under normal
use and servi c e , for the following pe riods measured from date of purchase from D-Li nk or its Authorize d
Reseller:
Product Type Warranty Pe riod
Complete produc ts One year
Spare parts and spare kits 90 days
The one-year period of w a rranty on complete products applies on condition that the product's Registrat ion
Card is filled out and returned to a D-Link office within ninety (90) days of purchase. A list of D-Link offices
is provided at the back of this manual, together with a copy of the Registration Card. F ailing such timely
registrat ion of purchase, t he warranty period s hall be limited to 90 days.
If the product proves de fe ctive withi n t he a pplicable warra nty period, D-Link will provide repair or replacement of the product. D-Link shal l have the sole discretion whether to repair or re place, and replacement
product may be new or rec ondi ti oned. Replacement product sha ll be of equivalent or better spe c ifications ,
relative to the defective product, but need not be identical . Any product or part repa ired by D-Link pursuant
to this wa rra nty shall have a warranty period of not le ss than 90 days, from date of such repair, irrespec tive of
any earlier expiration of original warranty period. When D-Link provides replacement, then the defective
product becomes the property of D-Link.
Warranty s e rvice may be obtaine d by contacting a D -L ink office withi n the applicable warranty period, and
requesting a Return Material Authorization (RMA) number. If a Registrat ion Card for the product i n que stion
has not been returned to D-Link, then a proof of purchase (s uch as a copy of the dated purchase invoice) must
be provided. If Purcha ser's circ umstances require special ha ndling of warranty correc tion, then at t he time of
requesting RMA number, Purcha ser may also propose special procedure as may be suitable t o t he case.
After an RMA numbe r is issue d, the defective produc t must be packaged securely in the ori ginal or other
suitable shipping package to ensure that it will not be damaged in transit, and the RMA number must be
prominently marked on t he outside of the package. The packa ge must be mail e d or otherwise s hipped to
D-Link with all costs of mailing/shipping/insurance prepaid; D-Link will ordinarily reimburse Purchaser for
mailing/s hipping/insurance e xpenses incurred for re turn of defective product in accordance with this warranty. D-Link shall never be responsible for any s oftware, firmware, information, or me mory da ta of
Purchaser cont ained in, st ore d on, or integrated with any product returned t o D-Link pursuant to t hi s warranty.
Any package returne d to D-Link without an RMA number will be rejected and shipped back to Purchaser at
Purchaser's expense, and D-Link reserve s the right in such a case t o l evy a reasonable ha ndling charge in
addition mai ling or shipping costs.
D-Link Offices for Registration and Warranty Service
The product's Registration Card, provided at the back of this manual, must be sent t o a D-Link office. T o
obtain an RMA numbe r for warranty servic e a s to a hardware product , or to obtain warra nty service as to a
software product , contact the D -L ink office nearest you. An address es/
telephone/fax list of D-Link offices is provided in the bac k of this manual.
iv
Trademark
Copyright 1997 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.
s
Copyright Statement
No part of this publication may be reproduced in any form or by any means
or used to make any derivative such as translation, transformation, or adaptation without permission from D-Link Corporation/D-Link Systems Inc., as
stipulated by the United States Copyright Act of 1976.
v
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vi
vii
Dual-Speed Stackable Hubs User’s Guide
ABLE OF
T
0 A
BOUT THIS GUIDE
Conventions..........................................................................................ix
Overview of the User’s Guide...............................................................ix
1 I
NTRODUCTION
Product Description ..............................................................................1
Product Features................................................................................... 2
Dual-speed Fast Ethernet/Ethernet Hub Technology Overview..............3
100BASE-TX Technology Overview.......................................................5
100Mbps Fast Ethernet Introduct i on.............................................................. 5
Cables and Connectors..................................................................................5
Topology.......................................................................................................6
Network Diameter......................................................................................... 6
Hub Types..................................................................................................... 7
..........................................................
.................................................................1
ONTENTS
C
IX
2 U
NPACKING AND SETUP
Unpacking.............................................................................................8
Identifying External Components...........................................................8
Front Panel.................................................................................................... 8
Rear Panel................................................................................................... 10
Installing the Hub................................................................................11
Installation.................................................................................................. 11
3 U
NDERSTANDING INDICATORS
About this Guide vii
....................................................7
.........................................12
Hub State Indicators............................................................................12
Port State Indicators............................................................................13
Port Speed Indicators..........................................................................14
Switch Indicator (DFE-908x Only)......................................................14
4 M
AKING CONNECTIONS
Hub Cascading/Building a Stack .........................................................17
Connectivity Rules...............................................................................18
Hub to End-Station Connection...........................................................19
Hub-to-Hub Uplink..............................................................................21
5 C
ABLES AND CONNECTORS
100BASE-TX Ethernet Cable and Connectors......................................23
Crossover Cables.................................................................................24
6 S
PECIFICATIONS
General ...............................................................................................26
Hub-to-Hub Cascading ........................................................................26
LED Indicators....................................................................................27
Environmental and Physical ................................................................27
.............................................................26
...................................................17
............................................23
0
About this Guideviii
Dual-Speed Stackable Hubs User’s Guide
BOUT THIS
A
This guide discusses how to install and use the DFE-908 series stackable
dual-speed Fast Ethernet/Ethernet Hubs.
UIDE
G
Conventions
References in this manual to the DFE-908 and DFE-908x hubs are frequently written simply as “ hub” or “hubs” where the text applies to all
models. Model numbers are normally used only to differentiate between
the two where necessary.
Unless differentiated by model number, all information applies to all models.
Overview of the User’s Guide
Chapter 1,
♦
works, and introduces the features of the DFE-908 series hubs.
Chapter 2,
♦
the hub.
Chapter 3,
♦
on the hub’s front panel. Understanding these indicators is essential
to effectively using the hub.
About this Guide ix
Introduction
Unpacking and Setup
Understanding Indicators
. Provides information on Fast Ethernet net-
. Helps you get started in setting up
. Describes all LED indicators
Chapter 4,
♦
Making Connections
. Provides information on connecting to the hub’s twisted-pair, stacking hubs, and linking with other
100BASE-TX hubs.
Appendix A,
♦
Cables and Connectors
cables and connectors used with t he hubs.
Appendix B,
♦
Specifications
. Lists the hubs’ specifications.
. Provides specifications on the
About this Guidex
Dual-Speed Stackable Hubs User’s Guide
1
1 I
This chapter introduces the DFE-908 series stackable dual-speed Fast
Ethernet/Ethernet Hubs, as well as giving some background information
about the technology the hubs use.
NTRODUCTION
Product Description
The D-Link DFE-908 series stackable dual-speed Fast Ethernet/Ethernet
Hubs are designed to allow easy migration and integration between 10Mbps
Ethernet and 100Mbps Fast Ethernet, while providing flexibility in cable
connections.
The DFE-908 series hubs can operate with either IEEE 802.3 10BASE-T
connections (twisted-pair Ethernet operating at 10 megabits per second), or
IEEE 802.3u 100BASE-TX connections (twisted-pair Fast Ethernet operating at 100 megabits per second). All of the twisted-pair ports support
Auto-Negotiation (NWay), allowing the hub to automatically detect the
speed of a network connection. This means you can connect all of your
Ethernet and Fast Ethernet hosts to a DFE-908 series hub stack, without any
rewiring required when a host is upgraded from 10Mbps to 100Mbps.
The DFE-908 series hubs, available in 8-port models, can be stacked with
up to five hubs in a stack. A stack of five 8-port hubs gives a total of 40
Ethernet or Fast Ethernet ports. A DFE-908 series hub stack operates as a
Introduction 1
Class II Fast Ethernet repeater, allowing it to be linked to another Class II
Fast Ethernet stack in the same collision domain.
On the DFE-908, the 10Mbps and 100Mbps segments are separate and do
not intercommunicate. The DFE-908x contains a built-in switch, making it
possible to transparently bridge betwee n the 10 Mbps and 100 Mbps segments.
Product Features
The list below highlights the features and specifications of the DFE-908
series hubs:
Compatible with the IEEE 802.3 10BASE-T Ethernet and 802.3u
♦
100BASE-TX Fast Ethernet industry standards for interoperability
with other Ethernet/Fast Ethernet network devices.
Ethernet connections support Category 3 or better twisted-pair ca-
♦
bles.
Fast Ethernet connections support both shielded twisted pair and
♦
Category 5 unshielded twisted-pair cables.
Fast Ethernet connections support a maximum distance of 100 me-
♦
ters from end-station to hub, and a total network diameter of 205
meters.
Eight NWay RJ-45 ports for connecting stations to the network.
♦
Built-in switching function (DFE-908x only) supports bridging be-
♦
tween 10Mbps and 100Mbps segments.
needed per stack.
A stack can contain various D-Link dual-speed hub models.
♦
Only one DFE-908x is
Introduction2
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