3Com OfficeConnect Dual Speed Hub 16, User Manual

Page 1: ...OfficeConnect Dual Speed Hub 16 User Guide 3C16751A 3C16751_booklet book Page i Tuesday July 13 1999 11 29 AM ...

Page 2: ...ing 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...

Page 3: ...ecks 13 Problem Solving 14 Networking Terminology 16 Dimensions and Standards 17 Dimensions and Operating Conditions 17 Standards 17 Environmental Statements 18 End Of Life Statement 18 Regulated Materials Statement 18 Environmental Statement about the Documentation 18 Environmental Statement about the Product Packaging 18 Important Safety Information 19 Wichtige Sicherheitshinweise 20 Consignes i...

Page 4: ...4 3C16751_booklet book Page 4 Tuesday July 13 1999 11 29 AM ...

Page 5: ...ixteen 10 100BASE TX ports It allows you to set up a network with both Ethernet 10Mbps and Fast Ethernet 100Mbps workstations and other devices a Class II hub can be connected to another Fast Ethernet hub a Class I hub cannot When referring to the OfficeConnect Dual Speed Hub 16 this guide uses the term Hub Each port on the Hub can be connected to either a 10BASE T Ethernet or a 100BASE TX Fast Et...

Page 6: ...lision LEDs yellow Flash each time a collision is detected on the Hub s 100Mbps or 10Mbps segment Collisions are a normal part of network operation Network Utilization LEDs green yellow orange top row 100Mbps bottom row 10Mbps Indicate how much the 100Mbps and 10Mbps segments of your network are being used Port Status LEDs green 100Mbps link yellow 10Mbps link If the LED is on the link between the...

Page 7: ... to any workstation or other equipment that has a 10BASE T or 100BASE TX port Each port is capable of autosensing for 10Mbps or 100Mbps operation 10 100BASE TX 16 8X 1X 9X Uplink Normal switch Affects the operation of port 16 If you are connecting another hub to port 16 set to Uplink in otherwise set to Normal out Refer to the Connecting Another OfficeConnect Hub section 5V DC 4A MAX Uplink Normal...

Page 8: ...ndard 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 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 eac...

Page 9: ...inting 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 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...

Page 10: ...unting 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 position of the holes Fix the screws into the wall leaving their heads 3mm 0 12in clear of the wall surface Remove any connectio...

Page 11: ... is fully in its latch locks it in place To disconnect the cable push the connector s 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 16 Alternatively you may wish to add...

Page 12: ...net 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 5m 16 4ft 100m 328ft 100m 328ft Dual Speed Hub 16 100Mbps Hub Example B C A Hub Hub Workstation Workstation Workstation Workstation Switch 100Mbps link Dual...

Page 13: ...ent 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 corresponding LED in the upper row of Port Status LEDs is on If the port is operating at 10Mpbs the corresponding LED in the lower row is on If neither LED is on check your connections Spot Checks At frequent intervals visually check that The Alert LED is off this ...

Page 14: ... due to a problem with the network card NIC of the attached equipment Alert LED continuously lit There is a problem with the network Check the Port Status LEDs to try to identify the port that is causing the problem If one of the Port Status LEDs is flashing that port has partitioned probably due to a network loop Examine your connections and remove the loop Each piece of equipment needs only one ...

Page 15: ...at has a connection Check that 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 8 Also check that 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 Figure 6 Straig...

Page 16: ...than one path Your hub detects this and partitions isolates one of its ports to break the loop A segment is the length of cable connected to a port Packets are the units of information your workstations and other equipment 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...

Page 17: ...ry 5 screened cables must be used to ensure compliance with the Class B requirements of this standard The use of unscreened cables category 3 or category 5 complies with the Class A requirements Refer to Electromagnetic Compatibility on page 30 for conditions of operation 1kg 2 2 lb 228mm 9 12in 54mm 2 1in 185mm 7 3in 33 VA 58 BThU hr power requirement 0 to 90 non condensing humidity 0 to 40 C 32 ...

Page 18: ...mproving 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...

Page 19: ...e You can only remove power from the unit by disconnecting the power cord from the outlet 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 There are no user replaceable fuses or user serviceable parts inside the hub If you have a physical problem wi...

Page 20: ...ch Herausziehen des Gerätenetzkabels aus der Netzsteckdose unterbrochen werden Der Betrieb dieses Geräts erfolgt unter den SELV Bedingungen Sicherheitskleinstspannung gemäß IEC 950 Diese Bedingungen sind nur gegeben wenn auch die an das Gerät angeschlossenen Geräte unter SELV Bedingungen betrieben werden Es sind keine von dem Benutzer zu ersetzende oder zu wartende Teile in dem Gerät vorhanden Wen...

Page 21: ...pareil hors circuit qu en débranchant son cordon électrique au niveau de cette prise L appareil fonctionne à une tension extrêmement basse de sécurité qui est conforme à la norme CEI 950 Ces conditions ne sont maintenues que si l équipement auquel il est raccordé fonctionne dans les mêmes conditions Il n y a pas de parties remplaceables par les utilisateurs ou entretenues par les utilisateurs à l ...

Page 22: ...st networking information on the 3Com Corporation World Wide Web site enter this URL into your Internet browser http www 3com com 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...

Page 23: ...nfiguration changes if applicable If you are unable to contact your network supplier see the following section on how to contact 3Com 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 pho...

Page 24: ...463 00798 611 2230 0 2 3455 6455 0080 611 261 001 800 611 2000 Europe From anywhere in Europe call 31 0 30 6029900 phone 31 0 30 6029999 fax 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 71429 800 17309 0800 113153 0800 917959 0800 1821502 00800 12813 18...

Page 25: ... 3266 1230 020 0645 98012 2127 Mexico Peru Puerto Rico Venezuela 01 800 CARE 01 800 2273 AT T 800 666 5065 800 666 5065 AT T 800 666 5065 North America 1 800 876 3266 Country Telephone Number Country Telephone Number 3C16751_booklet book Page 25 Tuesday July 13 1999 11 29 AM ...

Page 26: ...rica 1 408 326 2927 1 408 326 3355 From the following countries you may call the toll free numbers select option 2 and then option 2 Austria Belgium Denmark Finland France Germany Hungary Ireland Israel Italy Netherlands Norway Poland Portugal South Africa Spain Sweden Switzerland U K 0800 297468 0800 71429 800 17309 0800 113153 0800 917959 0800 1821502 00800 12813 1800553117 1800 9453794 1678 794...

Page 27: ...om makes no warranty or representation that its software products will meet Customer s requirements 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...

Page 28: ... 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 is 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 WARRANT...

Page 29: ...es 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 Warranty 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 Con...

Page 30: ...ne or more of the following measures Reorient the receiving antenna Relocate the equipment with respect to the receiver Move the equipment away from the receiver Plug the equipment into a different outlet so that equipment and receiver are on different branch circuits Consult the dealer or an experienced radio television technician for help CSA STATEMENT This Class B digital apparatus meets all re...

Page 31: ...31 Wall mounting screw hole guide 142mm 5 6in 3C16751_booklet book Page 31 Tuesday July 13 1999 11 29 AM ...

Page 32: ...Part No DUA 1675 1AAA02 Published June 1999 32 3C16751_booklet book Page 32 Tuesday July 13 1999 11 29 AM ...