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3C16750_booklet.book Page i Tuesday, July 13, 1999 11:18 AM
®
OfficeConnect Dual Speed Hub 8
User Guide (3C16750A)
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n n n 3C16750_booklet.book Page ii Tuesday, July 13, 1999 11:18 AM 3Com Corporation 5400 Bayfront Plaza Santa Clara, California 95052-8145 Copyright © 1999, 3Com Technologies. All rights reserved. Microsoft, MS-DOS, Windows, and Windows NT are registered trademarks of Microsoft Corporation. Novell and NetWare are registered trademarks of No part of this documentation may be reproduced in any form or by any means Novell, Inc. or used to make any derivative work (such as translation, tra
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3C16750_booklet.book Page 3 Tuesday, July 13, 1999 11:18 AM Introduction 5 Environmental Statements 18 End Of Life Statement 18 Creating your Network 6 Regulated Materials Statement 18 Dual Speed Hub 8—Front 6 Environmental Statement about the Documentation 18 Dual Speed Hub 8—Rear 7 Environmental Statement about the Product Packaging 18 Before You Start 8 Workstation Connections 8 Important Safety Information 19 Twisted Pair (TP) Cables 8 Wichtige Sicherheitshinweise 20 Hub Connections 8 Sta
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3C16750_booklet.book Page 4 Tuesday, July 13, 1999 11:18 AM 4
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3C16750_booklet.book Page 5 Tuesday, July 13, 1999 11:18 AM INTRODUCTION ® Welcome to the world of networking with 3Com . In the The port senses the speed of the connected equipment and modern business environment, communication and sharing operates at the appropriate speed. If you wish to extend an information is crucial. Computer networks have proved to existing Ethernet network into Fast Ethernet, adding a Dual be one of the fastest modes of communication but, until Speed Hub 8 can offe
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3C16750_booklet.book Page 6 Tuesday, July 13, 1999 11:18 AM CREATING YOUR NETWORK Dual Speed Hub 8—Front Alert LED Power LED Collision LEDs Port Status LEDs Network orange green yellow green (top row:100Mbps; bottom row:10Mbps) Utilization LEDs Off when the Hub is operating Indicates that Flash each time a If the LED is on, the link between the port and the next green/yellow/orange correctly. Lit for a short period of the power collision is detected on piece of network equipment is OK. If the
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3C16750_booklet.book Page 7 Tuesday, July 13, 1999 11:18 AM Dual Speed Hub 8—Rear 10/100BASE-TX 5V DC 4A MAX 4X 1X Uplink/Normal 8 5X Power Adapter socket Uplink/Normal switch Eight 10/100BASE-TX ports Only use the power adapter Affects the operation of port 8. If Use suitable TP cable with RJ-45 that is supplied with this you are connecting another hub to connectors. You can connect the Hub OfficeConnect Dual Speed port 8, set to Uplink (in), otherwise to any workstation or other Hub 8. Do n
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n n n n n n 3C16750_booklet.book Page 8 Tuesday, July 13, 1999 11:18 AM 3 One suitable TP cable for each workstation. Before You Start In order to comply with the 10BASE-T standard, ports Your OfficeConnect hub comes with: designed for workstation connections have been One power adapter for use with the OfficeConnect hub. marked with the graphical symbol ‘x’. This denotes a crossover in the port’s internal wiring, for example 1x, A Product Registration card for you to fill out and return.
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3C16750_booklet.book Page 9 Tuesday, July 13, 1999 11:18 AM To fit another unit: Stacking the Units Together 1 Rest the second unit on top of the clip and align it with the front of the unit below. The Rubber Feet 2 Press down gently on the unit to secure it onto the clip, The four self-adhesive rubber feet prevent your hub from ensuring the fastening pieces fit into the slots on the unit moving around on your desk. Only stick the feet to the below, as shown in Figure 2 (picture 2). mar
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n n n n 3C16750_booklet.book Page 10 Tuesday, July 13, 1999 11:18 AM Remove any connections to the unit and locate it over the Positioning Your Hub screw heads. When in line, gently push the unit on to the wall and move it downwards to secure. When making When installing your OfficeConnect hub, ensure: connections, be careful not to push the unit up and off the It is out of direct sunlight and away from sources of wall. heat. CAUTION: Only wall mount single units, do not wall Cabling is
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3C16750_booklet.book Page 11 Tuesday, July 13, 1999 11:18 AM disconnect the cable, push the connector’s latch in and Connecting Workstations and Other remove it. Equipment to Your Hub The Hub detects all port connections, so you can start using your network immediately. If you need more ports, simply WARNING: Please read the ‘Important Safety Information’ section before you start. add another OfficeConnect hub. WARNHINWEIS: Bitte lesen Sie den Abschnitt ‘Wichtige Sicherheitsinformationen
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3C16750_booklet.book Page 12 Tuesday, July 13, 1999 11:18 AM 3Com recommends that the cable (B) between the Fast Ethernet (10Mbps) Configuration Rules Ethernet hubs is no longer than 5m (16.4ft). This allows the You can connect a maximum of four Ethernet (10Mbps) maximum hub-to-workstation cable length (A or C) of 100m hubs in series between workstations, or between a (328ft) to be used, as shown in Figure 3. workstation and a non-repeater piece of equipment (such as a switch). Each cabl
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n n n Uplink/Normal Uplink/Normal 3C16750_booklet.book Page 13 Tuesday, July 13, 1999 11:18 AM Figure 5 Correct Connections for OfficeConnect Hubs Making the Connection to Another Hub You can connect a 10BASE-T, 100BASE-TX, or another 10/100BASE-TX OfficeConnect hub to any port on the Dual OfficeConnect Speed Hub 8. Use the following method: Dual Speed Hub 8 1 Using a straight-through cable, connect the Uplink/Normal port of the Dual Speed Hub 8 to any of the ports on the other hub (as
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n n 3C16750_booklet.book Page 14 Tuesday, July 13, 1999 11:18 AM PROBLEM SOLVING The OfficeConnect Hub has been designed to aid you when Alert LED continuously lit. There is a problem with the detecting and solving possible problems with your network. network. Check the Port Status LEDs to try to identify the These problems are rarely serious; the cause is usually a port that is causing the problem. If one of the Port Status disconnected or damaged cable, or incorrect configuration. LEDs i
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3C16750_booklet.book Page 15 Tuesday, July 13, 1999 11:18 AM Figure 6 Straight-through Cable/Crossover Cable Port Status LED flashing. The port is partitioned, probably due to a network loop. Examine your connections and remove the loop. Each piece of equipment needs only one Normal Uplink Normal Normal Pin Pin Pin Pin connection to your Hub. port port port port 1 1 1 1 Rx- Rx+ Rx+ Rx+ 2 2 2 2 Rx+ Rx- Link between the Hub and another OfficeConnect hub Rx- Rx- 3 3 3 3 not working. Check y
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3C16750_booklet.book Page 16 Tuesday, July 13, 1999 11:18 AM NETWORKING TERMINOLOGY A Network is a collection of workstations (for example, A segment is the length of cable connected to a port. IBM-compatible PCs) and other equipment (for example, Packets are the units of information your workstations and printers), connected for the purpose of exchanging other equipment send to each other over the network. A information or sharing resources. Networks vary in size, frame is the data part
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3C16750_booklet.book Page 17 Tuesday, July 13, 1999 11:18 AM DIMENSIONS AND STANDARDS Dimensions and Operating Conditions Standards Functional: ISO 8802/3 33 VA 228mm (9.12in.) 58 BThU/hr IEEE 802.3 power requirement Safety: UL 1950, EN 60950 54mm 0 to 40°C (32 to 105°F) (2.1in.) CSA 22.2 #950 operating temperature IEC 950 185mm (7.3in.) † 0 to 90% EMC: EN 55022 Class B (non-condensing) EN 50082-1 humidity 930g (2.1 lb) † FCC Part 15 Class B * † ICES-003 Class B † VCCI Class B CNS 13438 Class
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n n n n n n n n 3C16750_booklet.book Page 18 Tuesday, July 13, 1999 11:18 AM ENVIRONMENTAL STATEMENTS It is the policy of 3Com Corporation to be End Of Life Statement environmentally-friendly in all operations. To uphold our 3Com processes allow for the recovery, reclamation and safe policy, we are committed to: disposal of all end-of-life electronic components. Establishing environmental performance standards that comply with national legislation and regulations. Regulated Materials State
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n n n n n n n 3C16750_booklet.book Page 19 Tuesday, July 13, 1999 11:18 AM IMPORTANT SAFETY INFORMATION WARNING: Warnings contain directions that you There are no user-replaceable fuses or user-serviceable must follow for your personal safety. Follow all parts inside the hub. If you have a physical problem with directions carefully. the unit that cannot be solved with problem solving You must read the following safety information actions in this guide, contact your supplier. carefully befo
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n n n n n n n 3C16750_booklet.book Page 20 Tuesday, July 13, 1999 11:18 AM WICHTIGE SICHERHEITSHINWEISE WARNHINWEIS: Warnhinweise enthalten Der Betrieb dieses Geräts erfolgt unter den Anweisungen, die Sie zu Ihrer eigenen Sicherheit SELV-Bedingungen (Sicherheitskleinstspannung) gemäß befolgen müssen. Alle Anweisungen sind sorgfältig zu IEC 950. Diese Bedingungen sind nur gegeben, wenn befolgen. auch die an das Gerät angeschlossenen Geräte unter Sie müssen die folgenden Sicherheitsinformat
