D-Link DFE-916x User manual

DFE-916x
DFE-916
Ethernet/Fast Ethernet
Dual-Speed Stackable Hubs
User’s Guide
Rev. 02 (January, 1998)
6DFE916...02
Printed In Taiwan
RECYCLABLE

ii
Wichtige Sicherheitshinweise
1. Bitte lesen Sie sich diese Hinweise sorgfältig durch.
2. Heben Sie diese Anleitung für den spätern Gebrauch auf.
3. Vor jedem Reinigen ist das Gerät vom Stromnetz zu trennen. Vervenden Sie keine Flüssig- oder
Aerosolreiniger. Am besten dient ein angefeuchtetes Tuch zur Reinigung.
4. Um eine Beschädigung des Gerätes zu vermeiden sollten Sie nur Zubehörteile verwenden, die vom
Hersteller zugelassen sind.
5. Das Gerät is vor Feuchtigkeit zu schützen.
6. Bei der Aufstellung des Gerätes ist auf sichern Stand zu achten. Ein Kippen oder Fallen könnte
Verletzungen hervorrufen. Verwenden Sie nur sichere Standorte und beachten Sie die Aufstellhinweise
des Herstellers.
7. Die Belüftungsöffnungen dienen zur Luftzirkulation die das Gerät vor Überhitzung schützt. Sorgen Sie
dafür, daß diese Öffnungen nicht abgedeckt 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 Sie die Netzanschlußleitung so, daß niemand darüber fallen kann. Es sollete auch nichts auf
der Leitung abgestellt werden.
11. Alle Hinweise und Warnungen die sich am Geräten befinden sind zu beachten.
12. Wird das Gerät über einen längeren Zeitraum nicht benutzt, sollten Sie es vom Stromnetz trennen.
Somit wird im Falle einer Überspannung eine Beschädigung vermieden.
13. Durch die Lüftungsöffnungen dürfen niemals Gegenstände oder Flüssigkeiten in das Gerät gelangen.
Dies könnte einen Brand bzw. Elektrischen Schlag auslösen.
14. Öffnen Sie niemals das Gerät. Das Gerät darf aus Gründen der elektrischen Sicherheit nur von
authorisiertem Servicepersonal geöffnet werden.
15. Wenn folgende Situationen auftreten ist das Gerät vom Stromnetz zu trennen und von einer qualifizierten
Servicestelle zu überprüfen:
a– Netzkabel oder Netzstecker sint beschädigt.
b– Flüssigkeit ist in das Gerät eingedrungen.
c– Das Gerät war Feuchtigkeit ausgesetzt.
d– Wenn das Gerät nicht der Bedienungsanleitung ensprechend funktioniert oder Sie mit Hilfe dieser
Anleitung keine Verbesserung erzielen.
e– Das Gerät ist gefallen und/oder das Gehäuse ist beschädigt.
f– Wenn das Gerät deutliche Anzeichen eines Defektes aufweist.
16. Bei Reparaturen dürfen nur Orginalersatzteile bzw. den Orginalteilen entsprechende Teile verwendet
werden. Der Einsatz von ungeeigneten Ersatzteilen kann eine weitere Beschädigung hervorrufen.
17. Wenden Sie sich mit allen Fragen die Service und Repartur betreffen an Ihren Servicepartner. Somit
stellen Sie die Betriebssicherheit des Gerätes sicher.

iii
Limited Warranty
Hardware:
D-Link warrants its hardware products to be free from defects in workmanship and materials, under normal
use and service, for the following lengths of time from the date of purchase from D-Link or its Authorized
Reseller:
Product Type Warranty Period
Network adapters Lifetime
Unmanaged and managed hubs (10Mbps) Lifetime *
Unmanaged hubs (100Mbps) Lifetime *
Managed hubs (100Mbps) One year
Unmanaged and managed dual-speed hubs (10Mbps / 100Mbps) One year
Repeaters, MAUs , transceivers, media converters One year
Concentrators One year
Internetworking products One year
* Power supply and fans in these devices One year
Other hardware products One year
Spare parts and spare kits 90 days
If a product does not operate as warranted during the applicable warranty period, D-Link shall, at its option
and expense, (1) repair the defective product or part, (2) deliver to Customer an equivalent product or part to
replace the defective item. All products that are replaced will become the property of D-Link. Replacement
products may be new or reconditioned. Any replaced or repaired product or part has a ninety (90) day war-
ranty or the remainder of the initial warranty period, whichever is longer.
D-Link shall not be responsible for any software, firmware, information, or memory data of Customer con-
tained in, stored on, or integrated with any products returned to D-Link pursuant to any warranty.
All products with lifetime warranty have a standard five-year warranty. To qualify for lifetime warranty, the
enclosed Product Registration Card must be completed and returned to D-Link within ninety (90) days of
purchase.
Warranty service may be obtained by contacting a D-Link office within the applicable warranty period for a
Return Material Authorization (RMA) number. If a Registration Card has not been previously sent, proof of
purchase, such as a copy of the dated purchase invoice, must be provided. Once an RMA number is issued,
the defective product must be shipped back to D-Link prepaid, insured and wrapped in the original or similar
shipping package to ensure that it will not be damaged during shipment. When returning the defective prod-
uct to D-Link for service, the RMA number must be marked on the outside of the shipping package. Any
product returned without an RMA number shall be rejected and sent back to the Customer, and D-Link re-
serves the right to have Customer bear the cost of sending back such products. A service charge may or may
not be levied to Customer by D-Link. To find out if a service charge is levied or not, and the charged amount,
read the RMA that is returned to Customer, or ask the D-Link office when an RMA is requested.
D-Link Offices to Contact for Warranty Service:
To obtain an RMA number for warranty service, contact the D-Link office nearest you. There is a list of
contact addresses for D-Link’s international offices in the back of this User’s Guide. Your Warranty Regis-
tration Card should also be sent to your regional D-Link office.

iv
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 EXIST 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.

v
Trademarks
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.
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 adap-
tation without permission from D-Link Corporation/D-Link Systems Inc., as
stipulated by the United States Copyright Act of 1976.
FCC Warning
This equipment has been tested and found to comply with the regulations
for a Class A digital device, pursuant to Part 15 of the FCC Rules. These
limits are designed to provide reasonable protection against harmful inter-
ference 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.
CE Mark Warning
This is a Class A product. In a domestic environment, this product may
cause radio interference, in which case the user may be required to take
adequate measures.
VCCI A Warning

vi
T
ABLE OF
C
ONTENTS
0ABOUT THIS GUIDE.........................................................VIII
Conventions........................................................................................viii
Overview of the User’s Guide.............................................................viii
1INTRODUCTION.................................................................1
Product Description ..............................................................................1
Product Features...................................................................................2
Dual-Speed Ethernet Hub Technology Overview...................................3
100BASE-TX Technology Overview.......................................................5
100Mbps Fast Ethernet Introduction..............................................................5
Cables and Connectors ..................................................................................6
Topology.......................................................................................................6
Network Diameter.........................................................................................7
Hub Types.....................................................................................................7
2UNPACKING AND SETUP....................................................9
Unpacking.............................................................................................9
Identifying External Components.........................................................10
Front Panel.................................................................................................. 10
Rear Panel................................................................................................... 11
Installing the Hub................................................................................12
Installation .................................................................................................. 12
Rack Mounting............................................................................................ 13
Connecting the Power Supply..............................................................14

Dual-Speed Stackable Hubs User’s Guide
vii
3UNDERSTANDING INDICATORS.........................................15
Hub State Indicators............................................................................16
Module Indicators (SLOT)...................................................................17
Port State Indicators............................................................................17
Port Speed Indicators..........................................................................18
4MAKING CONNECTIONS...................................................19
Hub Cascading/Building a Stack.........................................................19
Connectivity Rules...............................................................................20
Hub to End-Station Connection...........................................................21
Hub-to-Hub Uplink..............................................................................23
Optional Module Connections.............................................................24
Module Installation ..................................................................................... 24
Switching Module (DFE-260S) ................................................................... 25
Fiber Optic Module (DFE-260FX)............................................................... 26
Fast Ethernet Module (DFE-260TX)............................................................ 27
5CABLES AND CONNECTORS ............................................29
100BASE-TX Ethernet Cable and Connectors......................................29
Crossover Cables.................................................................................30
6SPECIFICATIONS.............................................................33
General ...............................................................................................33
Hub-to-Hub Cascading........................................................................34
LED Indicators....................................................................................34
Environmental and Physical................................................................34

About this Guideviii
0 A
BOUT THIS
G
UIDE
This guide discusses how to install and use the D-Link DFE-916 series
dual-speed stackable Ethernet/Fast Ethernet hubs.
Conventions
As used in this manual, the expression "DFE-916 series" includes both the
DFE-916 and the DFE-916x. Unless a specific model number is given, the
term "hub" (or "hubs") refers to any unit (or units) in this series.
Most of the information in this manual applies to all DFE-916 and DFE-
916x units. Where a description applies to one model only, the specific
model number will be given.
Overview of the User’s Guide
♦Chapter 1, Introduction. Provides information on Fast Ethernet net-
works, and introduces the features of the DFE-916 series hubs.
♦Chapter 2, Unpacking and Setup. Helps you get started in setting up
the hub.
♦Chapter 3, Understanding Indicators. Describes all LED indicators
on the hub’s front panel. Understanding these indicators is essential
to effectively using the hub.

Dual-Speed Stackable Hubs User’s Guide
About this Guide ix
♦Chapter 4, Making Connections. Provides information on connect-
ing to the hub’s twisted-pair and console ports, stacking hubs, and
linking with other hubs.
♦Appendix A, Cables and Connectors. Provides specifications on the
cables and connectors used with the hubs.
♦Appendix B, Specifications. Lists the hubs’ specifications.