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3Com 3C16700A User Manual
Summary of 3C16700A
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Officeconnect ® ethernet hub 4, 4c, 8, 8c user guide (3c16704a, 3c16703a, 3c16700a, 3c16701a) 3c16700.Book page i tuesday, july 13, 1999 9:59 am.
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3com corporation ■ 5400 bayfront plaza ■ santa clara, california ■ 95052-8145 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)...
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3 introduction 5 creating your network 6 what else do i need? 6 workstation connections 6 transceiver connections 6 hub connections 7 10base-2 7 10base-t 7 twisted pair (tp) cables 7 stacking the units together 8 the rubber feet 8 the stacking clip 8 positioning your hub 9 securing your hub 9 using ...
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4 consignes importantes de sécurité 29 technical support 30 online technical services 30 world wide web site 30 3com knowledgebase web services 30 support from your network supplier 31 support from 3com 31 returning products for repair 34 3com corporation limited warranty 35 electromagnetic compatib...
Page 5: Ntroduction
5 i ntroduction 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 advantage o...
Page 6: Reating
6 c reating your n etwork what else do i need? 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. ■ four rubber feet. ■ a stacking clip. ■ two unit labels and eight cable ties. ■ an officeconnect ne...
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7 hub connections depending on what ports your hub has, you can use either 10base-t or 10base-2 to connect your hubs together: ■ with 10base-2 you can connect up to 30 hubs on a single segment, leaving all of the 10base-t ports free. ■ with 10base-t you can connect up to four hubs in series. 10base-...
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8 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 y...
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9 positioning your hub when installing your officeconnect hub, ensure: ■ it is out of direct sunlight and away from sources of heat. ■ cabling is away from power lines, fluorescent lighting fixtures, and sources of electrical noise such as radios, transmitters and broadband amplifiers. ■ water or mo...
Page 10: Ffice
10 t he o ffice c onnect e thernet h ub 4 and 4c ethernet hub 4 and 4c—front 1 2 3 4 green=aui off=coax 1% 2% 3% 6% 12% 25% 50% 80% port status network utilization partitioned aui/coax alert officeconnect ethernet hub 4c green = ok, yellow = partitioned power collision activity alert led orange aler...
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11 ethernet hub 4 and 4c—rear power adapter socket only use the power adapter that is supplied with this officeconnect hub. Do not use any other adapter. 10base-2 port (hub 4c only) can be used to connect your hub to other officeconnect hubs and equipment with 10base-2 cabling. If used, it is effect...
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12 connecting workstations and other equipment to your hub warning: please read the ‘important safety information’ section before you start. Warnhinweis: bitte lesen sie den abschnitt ‘wichtige sicherheitsinformationen’ sorgfältig durch, bevor sie das gerät einschalten. Avertissement: veuillez lire ...
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13 connecting hubs using 10base-2 connect a 10base-2 ‘y’ piece to each of your hubs (hub 4c only). Connect the ‘y’ pieces with 10base-2 cable to form a single segment, as shown in figure 4. Remember to terminate the two free ends of the segment by fitting terminators (end pieces). To disconnect a 10...
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14 connecting hubs using 10base-t you can connect hubs together with 10base-t in a number of ways, but for simplicity we recommend the following method, as shown in figure 5: 1 starting from the bottom, connect the port 4 of the lower hub to port 3 of the hub immediately above. Repeat this for each ...
Page 15: Roblem
15 p roblem s olving for the h ub 4 and 4c 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 ...
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16 port status led not lit for a 10base-t port that has a connection. There is a problem with this connection. Check that you are using a straight-through 10base-t cable which is properly connected at both ends, and is not damaged. If the cable is connected to port 4, ensure that the uplink/normal s...
Page 17: Ffice
17 t he o ffice c onnect e thernet h ub 8 and 8c ethernet hub 8 and 8c—front alert 1 2 3 4 5 6 7 8 1% 2% 3% 6% 12% 25% 50% 80% officeconnect ethernet hub 8c port status network utilization coax green = ok, yellow = partitioned power collision activity alert led orange alerts you to excessive network...
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18 ethernet hub 8 and 8c—rear power adapter socket only use the power adapter that is supplied with this officeconnect hub. Do not use any other adapter. 10base-2 port (hub 8c only) can be used to connect your hub to other officeconnect hubs and equipment with 10base-2 cabling. If used, it is effect...
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19 connecting workstations and other equipment to your hub warning: please read the ‘important safety information’ section before you start. Warnhinweis: bitte lesen sie den abschnitt ‘wichtige sicherheitsinformationen’ sorgfältig durch, bevor sie das gerät einschalten. Avertissement: veuillez lire ...
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20 connecting hubs using 10base-2 connect a 10base-2 ‘y’ piece to each of your hubs (hub 8c only). Connect the ‘y’ pieces with 10base-2 cable to form a single segment, as shown in figure 7. Remember to terminate the two free ends of the segment by fitting terminators (end pieces). To disconnect a 10...
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21 connecting hubs using 10base-t you can connect hubs together with 10base-t in a number of ways, but for simplicity we recommend the following method, as shown in figure 8: 1 starting from the bottom, connect the port 8 of the lower hub to port 7 of the hub immediately above. Repeat this for each ...
Page 22: Roblem
22 p roblem s olving for the h ub 8 and 8c 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 ...
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23 port status led not lit for a 10base-t port that has a connection. There is a problem with this connection. Check that you are using a straight-through 10base-t cable which is properly connected at both ends, and is not damaged. If the cable is connected to port 8, ensure that the uplink/normal s...
Page 24: Etworking
24 n etworking t erminology a network is a collection of workstations (for example, ibm-compatible personal computers) and other equipment (for example, printers), connected for the purpose of exchanging information. Networks vary in size, some are within a single room, others span continents. A loc...
Page 25: Imensions
25 d imensions and s tandards dimensions and operating conditions 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) ...
Page 26: Nvironmental
26 e nvironmental s tatements it is the policy of 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...
Page 27: Mportant
27 i mportant s afety i nformation 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...
Page 28: Ichtige
28 w ichtige s icherheitshinweise 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 ausbau...
Page 29: Onsignes
29 c onsignes 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 a...
Page 30: Echnical
30 t echnical s upport 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 c...
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31 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...
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32 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 7...
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33 latin america argentina brazil chile colombia at&t +800 666 5065 0800 13 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 3c16...
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34 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. To obtain an authorization...
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35 3com corporation limited warranty 3com officeconnect ethernet hub 4, 4c, 8, 8c the duration of the warranty for the officeconnect ethernet hub 4, 4c, 8, 8c (3c16704a, 3c16703a, 3c16700a, 3c16701a) is lifetime, including the power adapter. Advance hardware exchange is available during the first ye...
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36 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 r...
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37 d isclaimer 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 exc...
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38 e lectromagnetic c ompatibility fcc s tatement 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 li...
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39 wall mounting screw hole guide 150 mm (5.9 in) 3c16700.Book page 39 tuesday, july 13, 1999 9:59 am.
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Part no. Dua 1670-0aaa04 published june 1999 40 3c16700.Book page 40 tuesday, july 13, 1999 9:59 am.