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10

Connecting 10BASE-T and 100BASE-TX Networks

The 10/100 ports can each be connected to either a 
10BASE-T or 100BASE-TX network. If you have both types 
of network, you can connect them using the Switch so that 
all your workstations can communicate. Alternatively, if you 
use 10BASE-T and want to improve performance by 
introducing 100BASE-TX, the Switch protects your 
investments because it maintains 10BASE-T connections to 
your original network equipment.

Before You Start

Your OfficeConnect Dual Speed Switch comes with:

One power adapter for use with the Switch. The 
Switch 16 has an additional power cord for use with the 
power adapter.

A Product Registration card for you to fill out and return.

Four rubber feet.

A stacking clip.

Two unit labels and eight cable ties.

An OfficeConnect Network Assistant CD-ROM.

The extra parts mentioned in the next section are not 
supplied with the Swtich.

Unit Connections

To connect OfficeConnect units (such as hubs and other 
switches) to your Switch, you need:

One suitable TP cable for each unit.

3C16734_Booklet.book  Page 10  Tuesday, July 13, 1999  11:05 AM

Содержание 3C16734A

Страница 1: ...OfficeConnect Dual Speed Switch 4 Switch 8 and Switch 16 User Guide 3C16733A 3C16734A 3C16735A 3C16734_Booklet book Page i Tuesday July 13 1999 11 05 AM ...

Страница 2: ...hnical 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 limit...

Страница 3: ...ions 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...

Страница 4: ...4 3C16734_Booklet book Page 4 Tuesday July 13 1999 11 05 AM ...

Страница 5: ... 16 3C16735A allows your network to be segmented so that traffic can be contained effectively reducing the overall load without affecting access to critical resources When referring to the Switch 4 Switch 8 and Switch 16 this guide uses the term Switch The Switch is ideal for use with other OfficeConnect products as shown in Figure 1 It is compact and attractively designed for desktop use The Swit...

Страница 6: ...off the port is operating at 10Mbps If the is on green the port is in full duplex mode If the LED is off the port is in half duplex mode Speed 100 LED Full Duplex LED Port Status and Activity LEDs If the is on green the link between the port and the next piece of network equipment is OK If the LED is off nothing is connected or the connected device is switched off or there is a problem with the co...

Страница 7: ...ch is present Link Activity Duplex and Speed LEDs If the is on green the link between the port and the next piece of network equipment is OK The LED flashes each time a packet passes through the port If the LED is off the port does not have anything connected to it or the connected device is switched off If you have made a connection to the port and the LED is off there may be a problem with the c...

Страница 8: ...the port to another unit such as a hub or switch set to Uplink in otherwise set to Normal out Refer to the Connecting OfficeConnect Hubs to Your Switch section 4 8 or 16 10 100BASE TX ports Use suitable TP cable with RJ 45 connectors You can connect the OfficeConnect Switch to any workstation or OfficeConnect hub that has a 10BASE T 100BASE TX or 10 100BASE TX port Each port is capable of auto neg...

Страница 9: ...ead of all ports like a repeater hub This operation is called switching The Switch effectively divides up your network localizing the network traffic and passing on traffic as necessary as shown in Figure 2 If you have workstations that communicate frequently in the same part of the network traffic between them is not passed to the remainder of the network reducing the load If you have any high pe...

Страница 10: ...rk equipment Before You Start Your OfficeConnect Dual Speed Switch comes with One power adapter for use with the Switch The Switch 16 has an additional power cord for use with the power adapter A Product Registration card for you to fill out and return Four rubber feet A stacking clip Two unit labels and eight cable ties An OfficeConnect Network Assistant CD ROM The extra parts mentioned in the ne...

Страница 11: ...orkstation 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 hubs and workstations to the Switch you must use straight through TP cables with RJ 45 connectors all OfficeConnect products use RJ 45 type connectors Your supplier should stock suitable cables A straight through cabl...

Страница 12: ...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...

Страница 13: ...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 guide on Page 35 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 connections to the u...

Страница 14: ...uipment connected to the Switch does not support auto negotiation or if it has been disabled it must be configured to operate in half duplex mode If you are using the highest number port port 4 on Switch 4 port 8 on Switch 8 port 16 on Switch 16 to connect a workstation ensure the Uplink Normal switch is set to Normal out The Switch detects all port connections so you can start using your network ...

Страница 15: ...gure 4 Correct Connections for an OfficeConnect Hub Spot Checks At frequent intervals visually check that The Alert LED is off this is the best way to find out if there are problems with your network Case vents are not obstructed Cabling is secure and not pulled taut Switch set to Uplink in OfficeConnect Switch OfficeConnect Hub Twisted pair cable with RJ 45 connectors Maximum length is 100m 328ft...

Страница 16: ...follow the information given in the Connecting OfficeConnect Units to Your Switch section on page 14 It is likely that an Uplink Normal switch is incorrectly set Alert LED continuously lit If the Alert LED is lit there is a problem with the network Remove the port connections one at a time waiting a few seconds between each port If the Alert LED goes off there is either a network loop or an excess...

Страница 17: ...equipment connected to the Switch is powered on operating correctly and contains the correct type of connection Refer to Figure 5 below to compare the wiring of a straight through and a crossover cable Figure 5 Straight through Cable Crossover Cable 1 Normal port Pin Pin Uplink port Rx Rx Tx Tx Rx Rx Tx Tx 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 Normal port Pin Pin Normal port Rx Rx Tx Tx Rx Rx Tx Tx 2 3 ...

Страница 18: ...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 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...

Страница 19: ...e 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 32 for conditions of operation Switch 4 20VA 55 BThU hr power requirement Switch 8 16 6 VA 41 9 BThU hr Switch 16 34 5 VA 71 7 BThU hr 0 to 90 non condensing humidity 0 to 40 C 32 to 105 F operating temperature Switch 4 ...

Страница 20: ...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...

Страница 21: ...an 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 Switch If you have a physical problem with t...

Страница 22: ...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...

Страница 23: ...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 ...

Страница 24: ...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...

Страница 25: ...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...

Страница 26: ...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...

Страница 27: ... 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 3C16734_Booklet book Page 27 Tuesday July 13 1999 11 05 AM ...

Страница 28: ...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...

Страница 29: ... 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 requirements or work in combination with any hardware or applications software...

Страница 30: ... requests 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 qualify 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 th...

Страница 31: ...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 Warranty shall be governed by the laws of the State of Californi...

Страница 32: ...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...

Страница 33: ...33 3C16734_Booklet book Page 33 Tuesday July 13 1999 11 05 AM ...

Страница 34: ...34 3C16734_Booklet book Page 34 Tuesday July 13 1999 11 05 AM ...

Страница 35: ...35 Wall mounting screw hole guide 142mm 5 6in 3C16734_Booklet book Page 35 Tuesday July 13 1999 11 05 AM ...

Страница 36: ...Part No DUA 1673 4AAA02 Published June 1999 36 3C16734_Booklet book Page 36 Tuesday July 13 1999 11 05 AM ...

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