3Com 3C16704A-US User Guide

3Com 3C16704A-US - OfficeConnect Ethernet Hub 4 Manual

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  • 3Com 3C16704A-US | User Guide - Page 1
    OfficeConnect® Ethernet Hub 4, 4C, 8, 8C User Guide (3C16704A, 3C16703A, 3C16700A, 3C16701A)
  • 3Com 3C16704A-US | User Guide - Page 2
    respective companies with which they are associated. Please e-mail any comments about this document to 3Com at: [email protected]. Please include the document title (OfficeConnect Ethernet Hub 4, Hub 4C, Hub 8, Hub 8C), part number (DUA1670-0AAA05) and, if appropriate, the page number.
  • 3Com 3C16704A-US | User Guide - Page 3
    Spot Checks 14 Problem Solving for the Hub 4 and 4C 15 The OfficeConnect Ethernet Hub 8 and 8C 17 Ethernet Hub 8 and 8C-Front 17 Ethernet Hub 8 and 8C-Rear 18 Connecting Workstations and Other Equipment to Your Hub 19 Connecting OfficeConnect Ethernet Hubs Together 19 Connecting Hubs Using 10BASE
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    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 Compatibility
  • 3Com 3C16704A-US | User Guide - Page 5
    Ethernet Hub 8C, are ideal for creating small networks. They are compact and attractively designed for desktop use. These four products are part of the OfficeConnect range which stack neatly together with the OfficeConnect stacking clip. This user guide describes how to use the OfficeConnect hubs
  • 3Com 3C16704A-US | User Guide - Page 6
    additional OfficeConnect hubs to your hub, you need extra equipment. The extra equipment listed in the next section is not provided with the hub. Workstation Connections To connect workstations and other equipment to your hub, you need: 1 10BASE-T connections for all your equipment. 3Com produce
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    . The minimum cable length you can use is 0.5m (1.6ft). The maximum segment length is 185m (607ft). s One 10BASE-2 'Y' piece for each hub. You can use 'T' pieces but 'Y' pieces provide optimal clearance of the other ports. s Two 10BASE-2 50 Ohm terminators (end pieces). Figure 2 Some of the 10BASE
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    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 blue stacking clip allows you to stack your OfficeConnect units together securely. CAUTION: You can
  • 3Com 3C16704A-US | User Guide - Page 9
    , using your OfficeConnect hub. Read pages 10-16 if you have an: s OfficeConnect Ethernet Hub 4 or Hub 4C Read pages 17-23 if you have an: s OfficeConnect Ethernet Hub 8 or 8C When you have connected your equipment, you are ready to use your network. If you suspect there is a problem, refer to
  • 3Com 3C16704A-US | User Guide - Page 10
    OK, Yellow = Partitioned AUI/COAX Green=AUI Partitioned off=COAX Network Utilization 1% 2% 3% 6% 12% 25% 50% 80% OfficeConnect Ethernet Hub 4C Power LED green Indicates that the hub is powered on. Collision LED yellow Flashes each time a collision is detected on the network. Collisions are part
  • 3Com 3C16704A-US | User Guide - Page 11
    Ethernet Hub 4 and 4C-Rear 11
  • 3Com 3C16704A-US | User Guide - Page 12
    both ends of the AUI cable. CAUTION: Do not power the hub off and on quickly. Wait about five seconds between power cycles. Connecting OfficeConnect Ethernet Hubs Together Connect workstations and other equipment to any of the hub's 10BASE-T RJ-45 ports using 10BASE-T cables. To connect a 10BASE
  • 3Com 3C16704A-US | User Guide - Page 13
    it, and remove it. If you have connected a 10Mbps Ethernet transceiver to the AUI port, the 10BASE-2 port will be disabled. You used should be off. If they are not, check your connections. Figure 4 Correct Hub Connections Using 10BASE-2 50 Ohm terminator 10BASE-2 50 Ohm cable. Minimum length of
  • 3Com 3C16704A-US | User Guide - Page 14
    provided that the Uplink/Normal switch is set to Normal (out). If you suspect there is a problem, refer to "Problem Solving for the Hub 4 and 4C" on page 15. Figure 5 Correct Hub Connections Using 10BASE-T Switch set to Normal (out) Switches set to Uplink (in) AUI UNpolrimnkal 4 Checking
  • 3Com 3C16704A-US | User Guide - Page 15
    SOLVING FOR THE HUB 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 solve your
  • 3Com 3C16704A-US | User Guide - Page 16
    a 10BASE-T port that has a connection. There is a problem with this connection. Check that you are using a straight-through switch is set to Normal (out). Also check that the equipment being connected to the hub is powered on and operating correctly. Refer to Figure 6 below to compare the wiring of
  • 3Com 3C16704A-US | User Guide - Page 17
    Status Power Activity Collision 1 2 3 4 5 6 7 8 COAX Green = OK, Yellow = Partitioned Network Utilization 1% 2% 3% 6% 12% 25% 50% 80% OfficeConnect Ethernet Hub 8C Power LED green Indicates that the hub is powered on. Collision LED yellow Flashes each time a collision is detected on the network
  • 3Com 3C16704A-US | User Guide - Page 18
    Ethernet Hub 8 and 8C-Rear 18
  • 3Com 3C16704A-US | User Guide - Page 19
    . When you need more ports, simply add more OfficeConnect hubs. Connecting OfficeConnect Ethernet Hubs Together You can increase the number of workstations that can connect to your network by adding more OfficeConnect hubs. You can use either 10BASE-T or 10BASE-2 (Hub 8C only) to do this. Do not
  • 3Com 3C16704A-US | User Guide - Page 20
    them on. The Port Status LEDs for the 10BASE-2 ports you have used should be off. If they are not, check your connections. Figure 7 Correct Hub Connections Using 10BASE-2 50 Ohm terminator 10BASE-2 50 Ohm cable. Minimum length of each cable is 0.5m (1.6ft) Maximum segment length is 185m (607ft
  • 3Com 3C16704A-US | User Guide - Page 21
    a workstation provided that the Uplink/Normal switch is set to Normal (out). If you suspect there is a problem, refer to "Problem Solving for the Hub 8 and 8C" on page 22. Figure 8 Correct Hub Connections Using 10BASE-T Switch set to Normal (out) Checking Connections When you have connected your
  • 3Com 3C16704A-US | User Guide - Page 22
    SOLVING FOR THE HUB 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 solve your
  • 3Com 3C16704A-US | User Guide - Page 23
    a 10BASE-T port that has a connection. There is a problem with this connection. Check that you are using a straight-through switch is set to Normal (out). Also check that the equipment being connected to the hub is powered on and operating correctly. Refer to Figure 9 below to compare the wiring of
  • 3Com 3C16704A-US | User Guide - Page 24
    the Ethernet protocol that runs over Twisted Pair (TP) cable at 10Mbps. The OfficeConnect hub uses RJ Ethernet operation and occur if two or more devices (pieces of network equipment) attempt to transmit at the same time. A sudden sustained increase in the number of collisions can indicate a problem
  • 3Com 3C16704A-US | User Guide - Page 25
    humidity 225mm (9in.) 35.8mm (1.4in.) 135.4mm (5.3in.) + 15.2mm (0.6in.) for 10BASE-2 port (if applicable) OfficeConnect Ethernet Hub 4 OfficeConnect Ethernet Hub 4C OfficeConnect Ethernet Hub 8 OfficeConnect Ethernet Hub 8C Power 2.33 W 7.96 BThU/hr 10.3 W 35.18 BThU/hr 3.13 W 10.69 BThU/hr 5.53
  • 3Com 3C16704A-US | User Guide - Page 26
    all products are labelled according to recognized environmental standards. s 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 3C16704A-US | User Guide - Page 27
    of the unit. s Only stack the OfficeConnect hub with other OfficeConnect units. s To ensure compliance with international user-replaceable fuses or user-serviceable parts inside the hub. If you have a physical problem with the unit that cannot be solved with problem solving actions in this guide
  • 3Com 3C16704A-US | User Guide - Page 28
    Vorsicht vorzugehen. s Stapeln Sie das Geräts nur mit anderen OfficeConnect Gerätes zusammen. s Aufgrund von internationalen Sicherheitsnormen darf das Ger oder zu wartende Teile in dem Gerät vorhanden. Wenn Sie ein Problem mit dem Switch haben, das nicht mittels der Fehleranalyse in dieser Anleitung
  • 3Com 3C16704A-US | User Guide - Page 29
    groupe. s Seulement entasser le moyer avec les autres moyeux OfficeConnects. s Pour garantir le respect des normes internationales de sécurit résolu avec les actions de la résolution des problèmes dans ce guide, contacter votre fournisseur. s Débranchez l'adaptateur électrique avant de retirer cet
  • 3Com 3C16704A-US | User Guide - Page 30
    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: s World Wide Web site
  • 3Com 3C16704A-US | User Guide - Page 31
    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
  • 3Com 3C16704A-US | User Guide - Page 32
    Here is a list of worldwide technical telephone support numbers: Country Telephone Number Country Asia, Pacific Rim Australia Hong Kong India Indonesia Japan Malaysia New Zealand Pakistan Philippines 1 800 678 515 800 933 486 +
  • 3Com 3C16704A-US | User Guide - Page 33
    Country Latin America Argentina Brazil Chile Colombia North America Telephone Number AT&T +800 666 5065 0800 13 3266 1230 020 0645 98012 2127 1 800 876-3266 Country Mexico Peru Puerto Rico Venezuela Telephone Number 01 800 CARE (01 800 2273) AT&T +800 666 5065 800 666 5065 AT&T +800 666 5065 33
  • 3Com 3C16704A-US | User Guide - Page 34
    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 number, call or fax: Country Telephone Number
  • 3Com 3C16704A-US | User Guide - Page 35
    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 year from your date of purchase in accordance with 3Com's standard terms and conditions for such service. After
  • 3Com 3C16704A-US | User Guide - Page 36
    , 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
  • 3Com 3C16704A-US | User Guide - Page 37
    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 37
  • 3Com 3C16704A-US | User Guide - Page 38
    and used in accordance with the instructions, may cause harmful interference to radio determined by turning the equipment off and on, the user is encouraged to try to correct the interference by How to Identify and Resolve Radio-TV Interference Problems This booklet is available from the U.S.
  • 3Com 3C16704A-US | User Guide - Page 39
    Wall mounting screw hole guide 150 mm (5.9 in) 39
  • 3Com 3C16704A-US | User Guide - Page 40
    Part No. DUA 1670-0AAA05 Published April 2000 40
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OfficeConnect
®
Ethernet Hub 4, 4C, 8, 8C
User Guide (3C16704A, 3C16703A, 3C16700A, 3C16701A)