3C16750_booklet.
3C16750_booklet.book Page ii Tuesday, July 13, 1999 11:18 AM 3Com Corporation ■ 5400 Bayfront Plaza Copyright © 1999, 3Com Technologies. All rights reserved. No part of this documentation may be reproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without written permission from 3Com Technologies.
C16750_booklet.
3C16750_booklet.
3C16750_booklet.book Page 5 Tuesday, July 13, 1999 11:18 AM INTRODUCTION Welcome to the world of networking with 3Com® . In the modern business environment, communication and sharing information is crucial. Computer networks have proved to be one of the fastest modes of communication but, until recently, only large businesses could afford the networking advantage. The OfficeConnect® product range from 3Com has changed this, bringing networks to the small office.
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 orange Off when the Hub is operating correctly. Lit for a short period of time after power on, for self test. If the LED is continuously lit, there may be a problem. Refer to the “Problem Solving” section. green Indicates that the power supply to the Hub is present.
3C16750_booklet.book Page 7 Tuesday, July 13, 1999 11:18 AM Dual Speed Hub 8—Rear 10/100BASE-TX 5V DC 4A MAX Uplink/Normal 4X 1X 8 5X Power Adapter socket Uplink/Normal switch Only use the power adapter that is supplied with this OfficeConnect Dual Speed Hub 8. Do not use any other adapter. Affects the operation of port 8. If you are connecting another hub to port 8, set to Uplink (in), otherwise set to Normal (out). Refer to the “Connecting Another OfficeConnect Hub” section.
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 designed for workstation connections have been marked with the graphical symbol ‘x’. This denotes a crossover in the port’s internal wiring, for example 1x, 2x, 3x... Your OfficeConnect hub comes with: ■ One power adapter for use with the OfficeConnect hub. ■ A Product Registration card for you to fill out and return.
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 moving around on your desk. Only stick the feet to the marked areas at each corner of the underside of your hub if you intend to place the unit directly on top of the desk.
3C16750_booklet.book Page 10 Tuesday, July 13, 1999 11:18 AM Remove any connections to the unit and locate it over the screw heads. When in line, gently push the unit on to the wall and move it downwards to secure. When making connections, be careful not to push the unit up and off the wall. Positioning Your Hub When installing your OfficeConnect hub, ensure: ■ It is out of direct sunlight and away from sources of heat.
3C16750_booklet.book Page 11 Tuesday, July 13, 1999 11:18 AM disconnect the cable, push the connector’s latch in and remove it. Connecting Workstations and Other Equipment to Your Hub The Hub detects all port connections, so you can start using your network immediately. If you need more ports, simply add another OfficeConnect hub. WARNING: Please read the ‘Important Safety Information’ section before you start.
3C16750_booklet.book Page 12 Tuesday, July 13, 1999 11:18 AM 3Com recommends that the cable (B) between the Fast Ethernet hubs is no longer than 5m (16.4ft). This allows the maximum hub-to-workstation cable length (A or C) of 100m (328ft) to be used, as shown in Figure 3. Ethernet (10Mbps) Configuration Rules You can connect a maximum of four Ethernet (10Mbps) hubs in series between workstations, or between a workstation and a non-repeater piece of equipment (such as a switch).
3C16750_booklet.book Page 13 Tuesday, July 13, 1999 11:18 AM Figure 5 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 Speed Hub 8. Use the following method: Correct Connections for OfficeConnect Hubs OfficeConnect 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 shown in Figure 5).
3C16750_booklet.book Page 14 Tuesday, July 13, 1999 11:18 AM PROBLEM SOLVING The OfficeConnect Hub has been designed to aid you when detecting and solving possible problems with your network. These problems are rarely serious; the cause is usually a disconnected or damaged cable, or incorrect configuration. If this section does not solve your problem, contact your supplier for information on what to do next. Alert LED continuously lit. There is a problem with the network.
3C16750_booklet.book Page 15 Tuesday, July 13, 1999 11:18 AM 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 connection to your Hub. Figure 6 Normal port Rx+ Link between the Hub and another OfficeConnect hub not working. Check your connections; follow the information given in the “Connecting Another OfficeConnect Hub” section on page 11.
3C16750_booklet.book Page 16 Tuesday, July 13, 1999 11:18 AM NETWORKING TERMINOLOGY A Network is a collection of workstations (for example, IBM-compatible PCs) and other equipment (for example, printers), connected for the purpose of exchanging information or sharing resources. Networks vary in size, some are within a single room, others span continents. A segment is the length of cable connected to a port.
3C16750_booklet.book Page 17 Tuesday, July 13, 1999 11:18 AM DIMENSIONS AND STANDARDS Dimensions and Operating Conditions 33 VA 58 BThU/hr power requirement Functional: ISO 8802/3 IEEE 802.3 Safety: UL 1950, EN 60950 CSA 22.2 #950 IEC 950 EMC: EN 55022 Class B† EN 50082-1 FCC Part 15 Class B†* ICES-003 Class B† VCCI Class B† 228mm (9.12in.) 54mm (2.1in.) 0 to 40°C (32 to 105°F) operating temperature 0 to 90% (non-condensing) humidity Standards 185mm (7.3in.) 930g (2.
3C16750_booklet.book Page 18 Tuesday, July 13, 1999 11:18 AM ENVIRONMENTAL STATEMENTS It is the policy of 3Com Corporation to be environmentally-friendly in all operations. To uphold our policy, we are committed to: End Of Life Statement 3Com processes allow for the recovery, reclamation and safe disposal of all end-of-life electronic components. ■ Establishing environmental performance standards that comply with national legislation and regulations.
3C16750_booklet.book Page 19 Tuesday, July 13, 1999 11:18 AM IMPORTANT SAFETY INFORMATION WARNING: Warnings contain directions that you must follow for your personal safety. Follow all directions carefully. You must read the following safety information carefully before you install or remove the unit: ■ Exceptional care must be taken during installation and removal of the unit. ■ Only stack the OfficeConnect hub with other OfficeConnect units.
3C16750_booklet.book Page 20 Tuesday, July 13, 1999 11:18 AM WICHTIGE SICHERHEITSHINWEISE WARNHINWEIS: Warnhinweise enthalten Anweisungen, die Sie zu Ihrer eigenen Sicherheit befolgen müssen. Alle Anweisungen sind sorgfältig zu befolgen. Sie müssen die folgenden Sicherheitsinformationen sorgfältig durchlesen, bevor Sie das Geräts installieren oder ausbauen: ■ Bei der Installation und beim Ausbau des Geräts ist mit höchster Vorsicht vorzugehen.
3C16750_booklet.book Page 21 Tuesday, July 13, 1999 11:18 AM CONSIGNES IMPORTANTES DE SÉCURITÉ AVERTISSEMENT: Les avertissements présentent des consignes que vous devez respecter pour garantir votre sécurité personnelle. Vous devez respecter attentivement toutes les consignes. Nous vous demandons de lire attentivement les consignes suivantes de sécurité avant d’installer ou de retirer l’appareil: ■ Faites très attention lors de l'installation et de la dépose du groupe.
3C16750_booklet.book Page 22 Tuesday, July 13, 1999 11:18 AM TECHNICAL SUPPORT 3Com provides easy access to technical support information through a variety of services. This section describes these services. This service provides access to online support information such as technical documentation and software, as well as support options that range from technical education to maintenance and professional services. Information contained in this section is correct at time of publication.
3C16750_booklet.book Page 23 Tuesday, July 13, 1999 11:18 AM Support from Your Network Supplier Support from 3Com If you require additional assistance, contact your network supplier. Many suppliers are authorized 3Com service partners who are qualified to provide a variety of services, including network planning, installation, hardware maintenance, application training, and support services.
3C16750_booklet.book Page 24 Tuesday, July 13, 1999 11:18 AM Here is a list of worldwide technical telephone support numbers: Country Telephone Number Country Telephone Number Asia, Pacific Rim Australia Hong Kong India Indonesia Japan Malaysia New Zealand Pakistan Philippines 1 800 678 515 800 933 486 +61 2 9937 5085 001 800 61 009 0031 61 6439 1800 801 777 0800 446 398 +61 2 9937 5085 1235 61 266 2602 P.R. of China 10800 61 00137 or 021 6350 1590 800 6161 463 Singapore S.
3C16750_booklet.
3C16750_booklet.book Page 26 Tuesday, July 13, 1999 11:18 AM Returning Products for Repair Before you send a product directly to 3Com for repair, you must first obtain a Return Material Authorization (RMA) number. Products sent to 3Com without authorization numbers will be returned to the sender unopened, at the sender’s expense.
3C16750_booklet.book Page 27 Tuesday, July 13, 1999 11:18 AM 3Com Corporation LIMITED WARRANTY specifications. Customer assumes responsibility for the selection of the appropriate applications program and associated reference materials.
3C16750_booklet.book Page 28 Tuesday, July 13, 1999 11:18 AM marked on the outside of the package, and sent prepaid and packaged appropriately for safe shipment, and it is recommended that they be insured or sent by a method that provides for tracking of the package. The repaired or replaced item will be shipped to Customer, at 3Com's expense, not later than thirty (30) days after 3Com receives the defective product.
3C16750_booklet.book Page 29 Tuesday, July 13, 1999 11:18 AM DISCLAIMER Some countries, states, or provinces do not allow the exclusion or limitation of implied warranties or the limitation of incidental or consequential damages for certain products supplied to consumers, or the limitation of liability for personal injury, so the above limitations and exclusions may be limited in their application to you.
3C16750_booklet.book Page 30 Tuesday, July 13, 1999 11:18 AM ELECTROMAGNETIC COMPATIBILITY VCCI STATEMENT FCC STATEMENT This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules, and the Canadian Department of Communications Equipment Standards entitled, “Digital Apparatus,” ICES-003. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
3C16750_booklet.book Page 31 Tuesday, July 13, 1999 11:18 AM Wall mounting screw hole guide 142mm (5.6in.
3C16750_booklet.book Page 32 Tuesday, July 13, 1999 11:18 AM Part No.
