OfficeConnect® OfficeConnect®
Contents
1. AVERTISSEMENT Ports RJ 45 Il s agit de prises femelles blind es de donn es RJ 45 Vous ne pouvez pas les utiliser comme prise de t l phone Branchez uniquement des connecteurs de donn es RJ 45 sur ces prises femelles TECHNICAL SUPPORT 3Com provides easy access to technical support information through a variety of services This section describes these services Information contained in this section is correct at time of publication For the most recent information 3Com recommends that you access the 3Com Corporation World Wide Web site Online Technical Services 3Com offers worldwide product support 24 hours a day 7 days a week through the following online systems m World Wide Web site m 3Com Knowledgebase Web Services World Wide Web Site lo access the latest networking information on the 3Com Corporation World Wide Web site enter this URL into your Internet browser http www 3com com 24 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 3Com Knowledgebase Web Services This interactive tool contains technical product information compiled by 3Com expert technical engineers around the globe Located on the World Wide Web at http knowledgebase 3com com This service gives all 3Com customers and partners complementary round the cloc2. N AH A A A U A A UIN MA T J To remove the clip 1 Remove the top unit together with the clip If you hook a finger around one of the the fastening pieces and then pull it gently from out of the slot the clip should come away with the upper unit attached to it 2 Push the clip in the center so it bends towards the base of the unit and then separate once the clip is loose Positioning Your Hub When installing your OfficeConnect hub ensure m It is out of direct sunlight and away from sources of heat m Cabling is away from power lines fluorescent lighting fixtures and sources of electrical noise such as radios transmitters and broadband amplifiers m Water or moisture cannot enter the case of the unit m Air flow around the unit and through the vents in the side of the case is not restricted We recommend you provide a minimum of 25 4 mm 1in clearance Securing Your Hub There are two slots on the underside of the OfficeConnect hub which can be used for wall mounting It is recommended that you mount the hubs with the LEDs facing upwards to prevent dust entering the cooling vents When wall mounting the unit ensure that it is within reach of the power outlet You need two suitable screws Ensure that the wall you are going to use is smooth flat dry and sturdy Make two screw holes which are 142mm 5 6in apart Use the template at the back of this guide to mark the posi
3. OR ACTS OF GOD LIMITATION OF LIABILITY TO THE FULL EXTENT ALLOWED BY LAW 3COM ALSO EXCLUDES FOR ITSELF AND ITS SUPPLIERS ANY LIABILITY WHETHER BASED IN CONTRACT OR TORT INCLUDING NEGLIGENCE FOR INCIDENTAL CONSEQUENTIAL INDIRECT SPECIAL OR PUNITIVE DAMAGES OF ANY KIND OR FOR LOSS OF REVENUE OR PROFITS LOSS OF BUSINESS LOSS OF INFORMATION OR DATA OR OTHER FINANCIAL LOSS ARISING OUT OF OR IN CONNECTION WITH THE SALE INSTALLATION MAINTENANCE USE PERFORMANCE FAILURE OR INTERRUPTION OF ITS PRODUCTS EVEN IF 3COM OR ITS AUTHORIZED RESELLER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES AND LIMITS ITS LIABILITY TO REPAIR REPLACEMENT OR REFUND OF THE PURCHASE PRICE PAID AT 3COM S OPTION THIS DISCLAIMER OF LIABILITY FOR DAMAGES WILL NOT BE AFFECTED IF ANY REMEDY PROVIDED HEREIN SHALL FAIL OF ITS ESSENTIAL PURPOSE 30 DISCLAIMER Some countries states or provinces do not allow the exclusion or limitation of implied warranties or the limitation of incidental or conseguential 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 When the implied warranties are not allowed to be excluded in their entirety they will be limited to the duration of the applicable written warranty This warranty gives you specific legal rights which may vary depending on local law GOVERNING LAW This Limited Wa
4. Network With OfficeConnect Dual Speed Hub OfficeConnect Dual Speed Hub IN N 100Mbps If you need to connect more workstations simply use the stacking clip to connect another OfficeConnect hub to form a stack CREATING YOUR NETWORK Dual Speed Hub 5 and Dual Speed 8 Front b Collision LEDs yellow Flash each time a collision is detected on the Hub s 100Mbps or 10Mbps segment Occasional collisions are a normal part of network operation however sustained collisions may indicate network congestion LO n CI 10M 100M eS aes ty U Power Collision 2 3 88 3 C 0 Green 100M Yellow 10M Flash Activity OfficeConnect Dual Speed Hub 8 J Power LED b Port Status LEDs green green 100Mbps link yellow 10Mbps link Indicates that the hub is If the LED is on the link between the port and the next powered on piece of network eguipment is OK If the LED is flashing the link is OK and data is being received If the LED is off nothing is connected or the connected device is switched off or there is a problem with the connection refer to the Problem Solving section 6 Dual Speed Hub 5 and Dual Speed 8 Rear Power Adapter socket gt Uplink Normal switch b Eight 10 100BASE TX ports Only use the power adapter Affects the operation of port 8 If you are Use suitable TP cable with RJ 45 that is supplied with this connecting another hub t
5. 666 5065 800 666 5065 AT amp T 800 666 5065 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 senders expense To obtain an authorization number call or fax Country Telephone Number Fax Number 65 543 6500 65 543 6348 31 30 6029900 31 30 6029999 1 408 326 3355 Asia Pacific Rim Europe South Africa and Middle East Latin America 1 408 326 2927 From the following countries you may call the toll free numbers select option 2 and then option 2 Country Austria Belgium Denmark Finland France Germany Hungary Ireland Israel Italy Netherlands Norway Poland Portugal South Africa Spain Sweden Switzerland U K U S A and Canada Telephone Number 0800 297468 0800 71429 800 17309 0800 113153 0800 917959 0800 1821502 00800 12813 1800553117 1800 9453 94 16 8 79489 0800 0227788 800 11376 00800 3111206 0800 831416 0800 995014 900 983125 020 95482 0800 55 3072 0800 966197 1 800 876 3266 Fax Number 1 408 326 120 not toll free 3Com Corporation LIMITED WARRANTY 3Com OfficeConnect Dual Speed Hub 5 Hub 8 Hub 16 The duration of the warranty for the OfficeConnect Dual Speed Hub 5 3C16755 Dual Speed Hub 8 3C 16753 and Dual Speed Hub 16 3C16754 is lifetime including the
6. RE 3Com warrants that each software program licensed from it will perform in substantial conformance to its program specifications for a period of ninety 90 days from the date of purchase from 3Com or its authorized reseller 3Com warrants the media containing software against failure during the warranty period No updates are provided 3Com s sole obligation under this express warranty shall be at 3Com s option and expense to refund the purchase price paid by Customer for any defective software product or to replace any defective media with software which substantially conforms to applicable 3Com published specifications Customer assumes responsibility for the selection of the appropriate applications program and associated reference materials 3Com makes no warranty or representation that its software products will meet Customer s reguirements or work in combination with any hardware or applications software products provided by third parties that the operation of the software products will be uninterrupted or error free or that all defects in the software products will be corrected For any third party products listed in the 3Com software product documentation or specifications as being compatible 3Com will make reasonable efforts to provide compatibility except where the non compatibility is caused by a bug or defect in the third party s product or from use of the software product not in accordance with 3Com s published specifications or us
7. TM OfficeConnect Dual Speed Hub 5 3C16755 Dual Speed Hub 8 3C16753 Dual Speed Hub 16 3C16754 User Guide 3Com Corporation m 5400 Bayfront Plaza m Santa Clara California m 95052 8145 Copyright O 2001 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 3Com Technologies reserves the right to revise this documentation and to make changes in content from time to time without obligation on the part of 3Com Technologies to provide notification of such revision or change 3Com Technologies provides this documentation without warranty term or condition of any kind either implied or expressed including but not limited to the implied warranties terms or conditions of merchantability satisfactory guality and fitness for a particular purpose 3Com may make improvements or changes in the product s and or the program s described in this documentation at any time If there is any software on removable media described in this documentation it is furnished under a license agreement included with the product as a separate document in the hard copy documentation or on the removable media in a directory file named LICENSE TXT or ILICENSE TXT If you are unable to locate a copy please contact 3Com and a copy will be provided
8. a low heawy metal content Introduction 5 Creating your Network 6 Dual Speed Hub 8 Front 6 Dual Speed Hub 8 Rear 7 Dual Speed Hub 16 Front 8 Dual Speed Hub 16 Rear 9 Before You Start 10 Workstation Connections 10 Twisted Pair TP Cables 10 Hub Connections 10 Stacking the Units Together 11 The Rubber Feet 11 The Stacking Clip 11 Positioning Your Hub 12 Securing Your Hub 12 Connecting Workstations and Other Equipment to Your Hub 13 Connecting Another OfficeConnect Hub 13 Fast Ethernet 100Mbps Configuration Rules 13 Ethernet 10Mbps Configuration Rules 14 Making the Connection to Another Hub 15 Checking Hub Connections 15 Spot Checks 15 Problem Solving 16 Networking Terminology 18 Dimensions and Standards 19 Dimensions and Operating Conditions 19 Standards 19 Environmental Statements 20 End Of Life Statement 20 Regulated Materials Statement 20 Environmental Statement about the Documentation 20 Environmental Statement about the Product Packaging 20 Important Safety Information 21 Wichtige Sicherheitshinweise 22 Consignes importantes de s curit 23 Technical Support 24 Online Technical Services 24 World Wide Web Site 24 3Com Knowledgebase Web Services 24 Support from Your Network Supplier 25 Support from 3Com 25 Returning Products for Repair 28 3Com Corporation Limited Warranty 29 Regulatory Statements 31 INTRODUCTION Welcome to the world of networking with 3Com In the modern business envir
9. ample 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 Local Area Network LAN is a network usually in an office that spans no more than a single site Ethernet is a type of LAN referring to the technology used to pass information around the network It operates at 10Mbps megabits per second Fast Ethernet is a type of LAN that runs up to 10 times faster than standard Ethernet It operates at 100Mbps 10BASE T and 100BASE TX are the names given to the Ethernet protocol that runs over Twisted Pair TP cable 1OBASE T runs at 10Mbps whilst 1OOBASE TX operates at 100Mbps The OfficeConnect hub uses RJ 45 type connectors for connecting your TP network A Network Loop occurs when two pieces of network equipment are connected by more than one path Your hub detects this and partitions isolates one of its ports to break the loop 18 A segment is the length of cable connected to a port Packets are the units of Information your workstations and other equioment send to each other over the network A frame is the data part of the packet and can be unicast sent to a single device multicast sent to multiple devices or broadcast sent to all devices Bandwidth refers to the amount of network traffic the network can hold at any one time information capacity measured in bits per second bps Workstations or ap
10. ed Hub 16 to connect a workstation ensure the Uplink Normal switch Is set to Normal out TP cables are very easy to use To connect a cable simply slot the connector into the appropriate RJ 45 port When 13 the connector is fully in its latch locks it in to place To disconnect the cable push the connectors latch in and remove it The Hub detects all port connections so you can start using your network immediately If you need more ports simply add another OfficeConnect hub Connecting Another OfficeConnect Hub You may wish to connect another OfficeConnect hub to your Dual speed Hub Alternatively you may wish to add your Hub to an existing 10Mbps network When extending your network you should be aware of the configuration rules gt If you connect two Dual Speed Hub units directly together the link between them operates at 100Mbps Fast Ethernet 100Mbps Configuration Rules The Dual Speed Hub 8 and Dual Speed Hub 16 are Class Il hubs You can connect directly two Class II Fast Ethernet hubs Class Fast Ethernet hubs cannot be connected directly to other Fast Ethernet hubs The total length of cable A B C between two workstations or between a workstation and a non repeater piece of eguipment such as a switch must not exceed 205m 672ft Each cable A B or C must not exceed 100m 328ft as shown in Figure 3 overleaf 3Com recommends that the cable B between the Fast Ethernet hubs is no long
11. ed exclusively through X Open Company Ltd All other company and product names may be trademarks of the respective companies with which they are associated Environmental Statements It is the policy of 3Com Corporation to be environmentally friendly in all operations To uphold our policy we are committed to m Establishing environmental performance standards that comply with national legislation and regulations m Conserving energy materials and natural resources in all operations m Reducing the waste generated by all operations Ensuring that all waste conforms to recognized environmental standards Maximizing the recyclable and reusable content of all products m Ensuring that all products can be recycled reused and disposed of safely m Ensuring that all products are labelled according to recognized environmental standards m Improving our environmental record on a continual basis End of Life Statement 3Com processes allow for the recovery reclamation and safe disposal of all end of life electronic components Regulated Materials Statement 3Com products do not contain any hazardous or ozone depleting material Environmental Statement about the Documentation The documentation for this product is printed on paper that comes from sustainable managed forests it is fully biodegradable and recyclable and is completely chlorine free The varnish is environmentally friendly and the inks are vegetable based with
12. en werden CONSIGNES IMPORTANTES DE S CURIT AVERTISSEMENT Les avertissements pr sentent des consignes que vous devez respecter pour garantir votre s curit personnelle Vous devez respecter attentivement toutes les consignes Nous vous demandons de lire attentivement les consignes suivantes de s curit avant d installer ou de retirer l appareil ZA Faites tres attention lors de l installation et de la d pose du groupe Seulement entasser le moyer avec les autres moyeux OfficeConnects Pour garantir le respect des normes internationales de s curit utilisez uniquement l adaptateur lectrique remis avec cet appareil La prise secteur doit se trouver proximit de l appareil et son acc s doit tre facile Vous ne pouvez mettre l appareil hors circuit qu en d branchant son cordon lectrique au niveau de cette prise L appareil fonctionne une tension extr mement basse de s curit qui est conforme la norme CEI 950 Ces conditions ne sont maintenues que si l quipement auquel il est raccord fonctionne dans les m mes conditions 23 m li n y a pas de parties remplaceables par les utilisateurs ou entretenues par les utilisateurs a l int rieur du moyeu Si vous avez un probl me physique avec le moyeu qui ne peut pas tre r solu avec les actions de la r solution des probl mes dans ce guide contacter votre fournisseur m D branchez l adaptateur lectrique avant de retirer cet appareil ZA
13. er manual 29 OBTAINING WARRANTY SERVICE Customer must contact a 3Com Corporate Service Center or an Authorized 3Com Service Center within the applicable warranty period to obtain warranty service authorization Dated proof of purchase from 3Com or its authorized reseller may be required Products returned to 3Com s Corporate Service Center must be pre authorized by 3Com with a Return Material Authorization RMA number 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 Dead or Defective on Arrival In the event a product completely fails to function or exhibits a defect in materials or workmanship within the first forty eight 48 hours of installation but no later than thirty 30 days after the date of purchase and this is verified by 3Com it will be considered dead or defective on arrival DOA and a replacement shall be provided by advance replacement The replacement product will normally be shipped not later than three 3 business days after 3Com s verification of the DOA product but may be delayed due to export or import procedures When an advance replacement is provided and Customer fails to return the original product to 3Com wit
14. er than 5m 16 4ft This allows the maximum hub to workstation cable length A or C of 100m 328ft Figure 3 Configuration Rules and Example of a Fast Ethernet 100Mbps Network 100Mbps link Workstation Workstation Example 100m 328ft 5m 16 4ft 100m 328ft Dual 100Mbps Workstation Speed Hub Hub Workstation 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 Each cable must not exceed 100m 328ft An example is shown in Figure 4 Figure 4 Example of an Ethernet 10Mbps Network Example 10Mbps link Switch 10Mbps Dual 10Mbps 10Mbps Hub Speed Hub Hub Workstation Hub Workstation 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 Use the following method 1 Using a straight through cable connect the Uplink Normal port of the Dual Speed Hub to any of the ports on the other hub as shown in Figure 5 If using an Uplink Normal port on the other hub set its Uplink Normal switch to Normal out Set the Uplink Normal switch for the Uplink Normal port on the Dual Speed Hub to Uplink in Checking Hub Connections When you have connected all the appropriate wo
15. f 3Com Corporation to be environmentally friendly in all operations To uphold our policy we are committed to Establishing environmental performance standards that comply with national legislation and regulations Conserving energy materials and natural resources in all operations Reducing the waste generated by all operations Ensuring that all waste conforms to recognized environmental standards Maximizing the recyclable and reusable content of all products Ensuring that all products can be recycled reused and disposed of safely Ensuring that all products are labelled according to recognized environmental standards Improving our environmental record on a continual basis 20 End Of Life Statement 3Com processes allow for the recovery reclamation and sate disposal of all end of life electronic components Regulated Materials Statement 3Com products do not contain any hazardous or ozone depleting material Environmental Statement about the Documentation The documentation for this product is printed on paper that comes from sustainable managed forests it is fully biodegradable and recyclable and is completely chlorine free The varnish is environmentally friendly and the inks are vegetable based with a low heavy metal content Environmental Statement about the Product Packaging The packaging for this product is fully recyclable It has a recycled post consumer waste content of at least 40 by we
16. f network operation however sustained collisions may indicate a problem T Port Status m Network Utilization RDN 1 2 ean 4 058 46 NM 10M 100M 3C0 9 10 11 12 13 14 15 46 1 10 40 80 1 10 40 80 ma 10M 100M Green 100M Yellow 10M Flash Activity J sn Collision OfficeConnect Dual Speed Hub 16 J Power LED green Indicates that the power supply to the Hub is gt Port Status LEDs green 100Mbps link yellow 10Mbps link If the LED is on the link between the port and the next piece of network eguipment is OK If the LED is flashing the link is OK and data is being received If the LED is off nothing is connected or the connected device is switched off or there is a problem with the connection refer to the Problem Solving section 8 q Network Utilization LEDs green yellow orange left row 10Mbps right row 100Mbps Indicate how much the 100Mbps and 10Mbps segments of your network are being used Dual Speed Hub 16 Rear b Power Adapter socket Only use the power adapter that is supplied with this OfficeConnect Dual Speed Hub 16 Do not use any other adapter Uplink Normal switch b Sixteen 10 100BASE TX ports Affects the operation of port 16 If Use suitable TP cable with RJ 45 you are connecting another hub to connectors You can connect the Hub to port 16 set to Uplink in otherwise any workstati
17. hin fifteen 15 days after shipment of the replacement 3Com will charge Customer for the replacement product at list price 3Com shall not be responsible for any software firmware information or memory data of Customer contained in stored on or integrated with any products returned to 3Com for repair whether under warranty or not ADDITIONAL SERVICES Telephone Support This OfficeConnect product comes with telephone technical support for ninety 90 days The ninety 90 day period begins on the date of Customer s product purchase The telephone technical support is available from 3Com from 9 a m to 5 p m local time Monday through Friday excluding local holidays Telephone technical support is limited to the 3Com products designated above and may include assistance with installation product specific configuration and identification of eguipment problems Please refer to the Technical Support appendix in the User Guide for telephone numbers Response to reguests for telephone technical support will be in the form of a return call from a 3Com representative by close of business the following business day To gualify for this 90 days of telephone technical support you must register on the 3Com Web site at http support 3Com com index htm and provide your date of purchase product number and serial number 3Com reserves the right to modify or cancel this telephone support offering at any time without advance notice This offer i
18. ight and no heavy metal content IMPORTANT SAFETY INFORMATION A WARNING Warnings contain directions that you m 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 satety information actions in this guide contact your supplier carefully betore you install or remove the unit m Disconnect the power adapter before moving the unit m Exceptional care must be taken during installation and A WARNING RJ 45 ports These are shielded RJ 45 remova or Ue UNE data sockets They cannot be used as telephone m Only stack the OfficeConnect hub with other sockets Only connect RJ 45 data connectors to these OfficeConnect units sockets m To ensure compliance with international safety standards only use the power adapter that is supplied with the unit m The socket outlet must be near to the unit and easily accessible You can only remove power from the unit by disconnecting the power adaptor trom the outlet m This unit operates under SELV Safety Extra Low Voltage conditions according to IEC 950 The conditions are only maintained if the equipment to which it is connected also operates under SELV conditions 21 WICHTIGE SICHERHEITSHINWEISE A WARNHINWEIS Warnhinweise enthalten Anweisungen die Sie zu Ihrer eigenen Sicherheit bef
19. k access to technical information on most 3Com products Support from Your Network Supplier 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 When you contact your network supplier for assistance have the following information ready m Product model name part number and serial number m A list of system hardware and software including revision levels m Diagnostic error messages m Details about recent configuration changes if applicable If you are unable to contact your network supplier see the following section on how to contact 3Com 25 Support from 3Com If you are unable to obtain assistance from the 3Com online technical resources or from your network supplier 3Com offers technical telephone support services To find out more about your support options call the 3Com technical telephone support phone number at the location nearest you When you contact 3Com for assistance have the following information ready Product model name part number and serial number A list of system hardware and software including revision levels Diagnostic error messages Details about recent configuration changes if applicable Here is a list of worldwide technical telephone support n
20. o port 8 set to connectors You can connect the Hub to OfficeConnect Dual Speed Uplink in otherwise set to Normal out any workstation or other equipment that Hub 8 Do not use any other Refer to Connecting Another has a 1OBASE T or 100BASE TX port Each adapter OfficeConnect Hub on page 13 port is capable of autosensing for 10Mbps Note For Dual Speed Hub5 substitute or 100Mbps operation Ports operate in port 5 for port 8 half duplex mode pe IL Is ULSI Uu 10 30 VDC L 1 0 A MAX Q C 8 1x L POWER Uplink Normal WARNING RJ 45 ports These are WARNHINWEIS RJ 45 Anschl sse AVERTISSEMENT Ports RJ 45 II shielded RJ 45 data sockets They Dies sind abgeschirmte RJ 45 s agit de prises femelles blind es de cannot be used as telephone sockets Datenbuchsen Sie k nnen nicht als donn es RJ 45 Vous ne pouvez pas Only connect RJ 45 data connectors to TelefonanschluBbuchsen verwendet les utiliser comme prise de these sockets werden An diesen Buchsen d rfen telephone Branchez uniquement nur RJ 45 Datenstecker des connecteurs de donn es RJ 45 angeschlossen werden sur ces prises femelles Dual Speed Hub 16 Front gt Collision LEDs yellow Flash each time a collision is detected on the Hub s 100Mbps or 10Mbps segment Occasional collisions are a normal part o
21. olgen m ssen Alle Anweisungen sind sorgf ltig zu befolgen Sie mussen die folgenden Sicherheitsinformationen sorgf ltig durchlesen bevor Sie das Ger ts installieren oder ausbauen m Bei der Installation und beim Ausbau des Ger ts ist mit h chster Vorsicht vorzugehen m Stapeln Sie das Ger ts nur mit anderen OfficeConnect Ger tes zusammen m Aufgrund von internationalen Sicherheitsnormen darf das Ger t nur mit dem mitgelieferten Netzadapter verwendet werden m Die Netzsteckdose mu in der N he des Ger ts und leicht zug nglich sein Die Stromversorgung des Ger ts kann nur durch Herausziehen des Ger tenetzkabels aus der Netzsteckdose unterbrochen werden 22 m Der Betrieb dieses Ger ts erfolgt unter den SELV Bedingungen Sicherheitskleinstspannung gem IEC 950 Diese Bedingungen sind nur gegeben wenn auch die an das Ger t angeschlossenen Ger te unter SELV Bedingungen betrieben werden Es sind keine von dem Benutzer zu ersetzende oder zu wartende Teile in dem Ger t vorhanden Wenn Sie ein Problem mit dem Switch haben das nicht mittels der Fehleranalyse in dieser Anleitung behoben werden kann setzen Sie sich mit Ihrem Lieferanten in Verbindung Vor dem Ausbau des Ger ts das Netzadapterkabel herausziehen WARNHINWEIS RJ 45 Anschl sse Dies sind abgeschirmte RJ 45 Datenbuchsen Sie k nnen nicht als Telefonanschlu buchsen verwendet werden An diesen Buchsen d rfen nur RJ 45 Datenstecker angeschloss
22. on or other equipment that set to Normal out Refer to has a 10BASE T or 100BASE TX port Each Connecting Another OfficeConnect port is capable of autosensing for 10Mbps Hub on page 13 or 100Mbps operation Ports operate in half duplex mode TES rn 10 100BASE TX SUL LUE 10 30 VDC o L 8X EEE EEE X Uplink Normal 16 9X l WARNING RJ 45 ports These are WARNHINWEIS RJ 45 Anschliisse AVERTISSEMENT Ports RJ 45 shielded RJ 45 data sockets They Dies sind abgeschirmte RJ 45 s agit de prises femelles blind es de cannot be used as telephone sockets Datenbuchsen Sie k nnen nicht als donn es RJ 45 Vous ne pouvez pas Only connect RJ 45 data connectors to TelefonanschluBbuchsen verwendet les utiliser comme prise de these sockets werden An diesen Buchsen durfen telephone Branchez uniguement nur RJ 45 Datenstecker des connecteurs de donn es RJ 45 angeschlossen werden sur ces prises femelles Before You Start Your OfficeConnect hub comes with m One power adapter for use with the OfficeConnect hub m Product Registration card for you to fill out and return m Four rubber feet m A Stacking clip The extra parts mentioned in the next section are not supplied with the hub Workstation Connections To connect workstations o
23. onment 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 The OfficeConnect Dual Speed Hub 5 Hub 8 and Hub 16 are ideal for creating small networks They are compact and attractively designed for desktop use and can be used with other OfficeConnect products These products form part of the OfficeConnect range which neatly stack together with the OfficeConnect stacking clip The OfficeConnect Dual Speed Hubs are easy to use Class Il hubs repeaters with 10 100BASE TX ports All three hubs allow you to set up a network with both Ethernet 10Mbps and Fast Ethernet 100Mbps workstations and other devices Refer to Connecting Another OfficeConnect Hub on page 13 for more information When referring to these products this guide uses the term Hub Each port on the Hub can be connected to either a TOBASE T Ethernet or a 100BASE TX Fast Ethernet device The port senses the speed of the connected equipment and operates at the appropriate speed If you wish to extend an existing Ethernet network into Fast Ethernet adding a Dual Speed Hub 5 Hub 8 and Hub 16 can offer a more cost effective migration path than adding both a 100Mbps hub and a 10 100Mbps switch Figure 1 Small
24. our Hub you need one suitable TP cable for each unit Stacking the Units Together The Rubber Feet 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 Do not fix the feet if you are going to use the clip The Stacking Clip The stacking clip allows you to stack your OfficeConnect units together neatly and securely IN CAUTION You can stack up to a maximum of four units Smaller units must be stacked above larger units To fit the clip 1 Place your unit on a flat surface 2 Fitthe clip across the top of the unit as shown in Figure 2 picture 1 ensuring that the longer sections of the fastening pieces are pointing downwards 3 Align the fastening pieces over the slots found on each side of the unit 4 Push the clip down gently to secure it ensuring the fastening pieces snap into the slots on the unit 11 To fit another unit 1 Rest the second unit on top of the clip and align it with the front of the unit below 2 Press down gently on the unit to secure it onto the clip ensuring the fastening pieces fit into the slots on the unit below as shown in Figure 2 picture 2 Figure 2 Stacking Your Units Together 1 Fasteni ng EE Piece PO Le N H Pa EA a Fastening Piece W a me 2 k A
25. plications that use the network heavily are referred to as using high bandwidth Fast Ethernet has a higher bandwidth than Ethernet so It can cope with larger amounts of traffic which results in faster operation A half duplex link allows information to flow in either direction but not in both directions simultaneously Collisions are part of normal ethernet operation and occur if other network equipment attempts to transmit at the same time A sudden sustained increase in the number of collisions may indicate a problem with the device DIMENSIONS AND STANDARDS Dimensions and Operating Conditions 3 VA 10 24 BThU hr power requirement 220mm 8 7in O to 40 C 32 to 105 F operating temperature 135 4mm 5 3in 0 to 90 non condensing humidity Dual Speed Hub 5 600g 1 3 Ib Dual Speed Hub 8 600g 1 3 Ib 8 VA 27 30 BThU hr power requirement El Oto 40 C 32 to 105 F operating temperature 0 to 90 non condensing humidity Dual Speed Hub 16 1kg 2 2 lb 19 Standards 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 CNS 13438 Class A Environmental EN 60068 IEC 68 Refer to Regulatory Statements on page 31 for conditions of operation f ENVIRONMENTAL STATEMENTS It is the policy o
26. power adapter Advance hardware exchange is available during the first year from your date of purchase in accordance with 3Com s standard terms and conditions for such service After the first year the warranty reverts to 3Com s standard lifetime limited warranty To gualify for the lifetime limited warranty and the advance hardware exchange you must submit the appropriate product warranty registration card to 3Com otherwise this product will be warranted for a period of one 1 year without advance hardware exchange HARDWARE 3Com warrants this hardware product to be free from defects in workmanship and materials under normal use and service for the following length of time from the date of purchase from 3Com or its authorized reseller One 1 year unless otherwise specified above 3Com s sole obligation under this express warranty shall be at 3Com s option and expense to repair the defective product or part deliver to Customer an eguivalent product or part to replace the defective item or if neither of the two foregoing options is reasonably available 3Com may in its sole discretion refund to Customer the purchase price paid for the defective product All products that are replaced will become the property of 3Com Replacement products may be new or reconditioned 3Com warrants any replaced or repaired product or part for ninety 90 days from shipment or the remainder of the initial warranty period whichever is longer SOFTWA
27. r other equipment to your hub you need 1 One 10BASE T 10 100BASE TX or 100BASE TX adapter card for each workstation 3Com produce a range of easy to install network adapter cards which provide your workstations with a suitable connection 2 An operating system for example Netware or Windows 95 98 with network support configured running on your workstations 3 One suitable TP cable for each workstation 10 In order to comply with the TOBASE T standard ports designed for workstation connections have been marked with the graphical symbol x This denotes a crossover in the ports internal wiring for example 1x 2X 3X gt Twisted Pair TP Cables To connect your workstations and other equipment to the Hub use straight through TP cables with RJ 45 connectors all OfficeConnect products use RJ 45 type connectors A straight through cable is one where each pin of one connector is connected to the same pin of the other connector Cables can be shielded screened or unshielded we recommend that you use shielded cable Cables used for 100BASE TX or 10 100BASE TX connections must be data grade Category 5 Your supplier should stock suitable cables The maximum length of a single cable is 100m 328ft Refer to Fast Ethernet 100Mbps Contiguration Rules on page 13 for further information on cable lengths in a 100Mbps network Hub Connections To connect other OfficeConnect units to y
28. r with the Hub 10Mbps Port Status LED lit for a port with a 100Mbps device connected This may be because the cable is not of a high enough guality to carry Fast Ethernet signals we recommend you use a Category 5 cable or due to a problem with the network card NIC of the attached equipment 16 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 13 It is likely that an Uplink Normal switch is incorrectly set Port Status LED not lit for a port that has a connection Check the following m You are using a straight through cable which is properly connected at both ends and is not damaged Refer to Twisted Pair TP Cables on page 10 m The equipment connected to the Hub is powered on operating correctly and contains the correct type of connection Refer to Figure 6 to compare the wiring of a straight through and a crossover cable m Your PCs network drivers have loaded and initialised correctly Figure 6 Straight through Cable Crossover Cable 17 NETWORKING TERMINOLOGY A Network is a collection of workstations for example IBM compatible PCs and other equipment for ex
29. rkstations and other eguipment to the Hub power on the Hub For each port with a connection a Port Status LED should be on If the port is operating at 100Mbps the LEDs light green If the port is operating at 10Mpbs the LEDs light yellow If neither LED is on check your connections Spot Checks At freguent intervals visually check that m Case vents are not obstructed m Cabling is secure and not pulled taut Figure 5 Correct Connections for OfficeConnect Hubs OfficeConnect Dual Speed Hub OfficeConnect hub Switch set to Uplink in Twisted pair cable with RJ 45 connectors Maximum length is 100m 328ft 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 Perform these actions first m Ensure all network equipment is powered on m Power each piece of network equipment off wait about 5 seconds and then power each one on Check the following symptoms and solutions Power LED not lit Check your power adapter connection If there is still no power you may have a faulty power adapter which needs replacing with an identical OfficeConnect power adapter Do not use any other power adapte
30. rranty shall be governed by the laws of the State of California U S A excluding its conflicts of laws principles and excluding the United Nations Convention on Contracts for the International Sale of Goods 3Com Corporation 5400 Bayfront Plaza Santa Clara CA 95054 408 326 5000 REGULATORY STATEMENTS 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 This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures m Reorient the receiving antenna m Relocate the equipment with respect to the receiver m Move the eguipment away from the receiver mi Plug the equipment into a different outlet so that equipment and receiver are on different branch circuits m Con
31. s not available where prohibited or restricted by law 3Com s Web and Bulletin Board Service are available at no charge and provide software and firmware upgrades a bug list and technical information about 3Com products WVARRANTIES EXCLUSIVE IF A 3COM PRODUCT DOES NOT OPERATE AS WARRANTED ABOVE CUSTOMER S SOLE REMEDY FOR BREACH OF THAT WARRANTY SHALL BE REPAIR REPLACEMENT OR REFUND OF THE PURCHASE PRICE PAID AT 3COM S OPTION TO THE FULL EXTENT ALLOWED BY LAW THE FOREGOING WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ALL OTHER WARRANTIES TERMS OR CONDITIONS EXPRESS OR IMPLIED EITHER IN FACT OR BY OPERATION OF LAW STATUTORY OR OTHERWISE INCLUDING WARRANTIES TERMS OR CONDITIONS OF MERCHANTABILITY FITNESS FORA PARTICULAR PURPOSE SATISFACTORY OUALITY CORRESPONDENCE WITH DESCRIPTION AND NON INFRINGEMENT ALL OF WHICH ARE EXPRESSLY DISCLAIMED 3COM NEITHER ASSUMES NOR AUTHORIZES ANY OTHER PERSON TO ASSUME FOR IT ANY OTHER LIABILITY IN CONNECTION WITH THE SALE INSTALLATION MAINTENANCE OR USE OF ITS PRODUCTS 3COM SHALL NOT BE LIABLE UNDER THIS WARRANTY IF ITS TESTING AND EXAMINATION DISCLOSE THAT THE ALLEGED DEFECT OR MALFUNCTION IN THE PRODUCT DOES NOT EXIST OR WAS CAUSED BY CUSTOMER S OR ANY THIRD PERSON S MISUSE NEGLECT IMPROPER INSTALLATION OR TESTING UNAUTHORIZED ATTEMPTS TO OPEN REPAIR OR MODIFY THE PRODUCT OR ANY OTHER CAUSE BEYOND THE RANGE OF THE INTENDED USE OR BY ACCIDENT FIRE LIGHTNING OTHER HAZARDS
32. sult the dealer or an experienced radio television technician for help INFORMATION TO THE USER The user may find the following booklet prepared by the Federal Communications Commission helpful How to Identify and Resolve Radio TV Interference Problems This booklet is available from the U S Government Printing Office Washington DC 20402 Stock No 004 000 00345 4 In order to meet FCC emissions limits this equipment must be used only with cables which comply with IEEE 802 3 CSA STATEMENT This Class B digital apparatus meets all requirements of the Canadian Interference Causing Equipment Regulations Cet appareil num rique de la classe B respecte toutes les exigences du R glement sur le mat riel brouilleur du Canada This product complies with the European Low Volatage Directive 73 23 EEC and EMC Directive 89 336 EEC as amended by European Directive 93 68 EEC VCCI STATEMENT CORB FRUEREFERHEBFH BAS VCCI ORE CED 7 52 BARRE CT COMB RARE CHATATL EHEI UTUETA CORBMIVACTV EV a RRR TC ANSE SBBEARCTCEMSAOVET GR eS ICE gt TIELUBNORAELTE U BCIQ STATEMENT SEREHE EE RAMA VEM TEJ ERY EDEN ES FR gt AT EN SE OBE i zen EVT gt EHER BE MIEJ Wall mounting screw hole guide gt 142mm 5 6in 31 Part No DUA1675 1AAA05 Published May 2001 32
33. tion of the holes Fix the screws into the wall leaving their heads 3mm 0 12in clear of the wall surface 12 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 IN Also available from 3Com is the OfficeConnect Mounting Unit part number 3C 16765 This allows you to firmly secure a stack of OfficeConnect devices to the desktop or onto a shelf in a rack CAUTION Only wall mount single units do not wall mount stacked units Connecting Workstations and Other Equipment to Your Hub A WARNING Please read the Important Safety Information section before you start WARNHINWEIS Bitte lesen Sie den Abschnitt Wichtige Sicherheitsinformationen sorgf ltig durch bevor Sie das Ger t einschalten AVERTISSEMENT Veuillez lire attentivement la section Consignes importantes de s curit avant de mettre en route N CAUTION The equipment connected to the Hub must be set to operate in auto negotiate or half duplex mode Connecting workstations and other equipment to your Hub is easy To connect a workstation to any of the Hub ports use a straight through TP cable Refer to Twisted Pair TP Cables on page 10 for further information gt If you are using port 5 Dual Speed Hub 5 or 8 Dual Speed Hub 8 or 16 Dual Spe
34. to you UNITED STATES GOVERNMENT LEGEND If you are a United States government agency then this documentation and the software described herein are provided to you subject to the following All technical data and computer software are commercial in nature and developed solely at private expense Software is delivered as Commercial Computer Software as defined in DFARS 252 227 7014 June 1995 or as a commercial item as defined in FAR 2 101 a and as such is provided with only such rights as are provided in 3Com s standard commercial license for the Software Technical data is provided with limited rights only as provided in DFAR 252 227 7015 Nov 1995 or FAR 52 227 14 June 1987 whichever is applicable You agree not to remove or deface any portion of any legend provided on any licensed program or documentation contained in or delivered to you in conjunction with this User Guide Unless otherwise indicated 3Com registered trademarks are registered in the United States and may or may not be registered in other countries 3Com and OfficeConnect are registered trademarks of 3Com Corporation The 3Com logo is a trademark of 3Com Corporation Microsoft Windows and Windows NT are registered trademarks of Microsoft Corporation Netscape Navigator is a registered trademark of Netscape Communications Novell and NetWare are registered trademarks of Novell Inc UNIX is a registered trademark in the United States and other countries licens
35. umbers Country Asia Pacific Rim Australia Hong Kong India Indonesia Japan Malaysia New Zealand Pakistan Philippines Europe From anywhere in Europe call 31 0 30 6029900 phone 31 0 30 6029999 fax Telephone Number 1 800 678 515 800 933 480 461 2 993 5085 001 800 61 009 0031 61 6439 1800 801 777 0800 446 398 61 2 9937 5085 1235 61 266 2602 Europe South Africa and Middle East From the following countries you may use the toll free numbers Austria Belgium Denmark Finland France Germany Hungary Ireland Israel Italy 0800 297468 0800 1429 800 17309 0800 113153 0800 917959 0800 1821502 00800 12813 1800 553117 1800 9453 94 1678 79489 Country PR of China Singapore S Korea From anywhere in S Korea From Seoul Taiwan R O C Thailand Netherlands Norway Poland Portugal South Africa Spain Sweden Switzerland U K 26 Telephone Number 10800 61 00137 or 021 6350 1590 800 6161 463 00798 611 2230 0 2 3455 6455 0080 611 261 001 800 611 2000 0800 0227788 800 11376 00800 3111206 0800 831416 0800 995014 900 983125 020 795482 0800 55 3072 0800 966197 Country Latin America Argentina Brazil Chile Colombia North America Telephone Number AT amp T 800 666 5065 0800 13 3266 1230 020 0645 98012 2127 1 800 876 3266 Country Mexico Peru Puerto Rico Venezuela 27 Telephone Number 01 800 CARE 01 800 2273 AT amp T 800
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