3Com 3C16722A User Guide

3Com 3C16722A - OfficeConnect Hub Manual

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  • 3Com 3C16722A | User Guide - Page 1
    OfficeConnect® Fast Ethernet Hub 4, Hub 8, Hub 12 User Guide (3C16723A, 3C16722A, 3C16721A)
  • 3Com 3C16722A | User Guide - Page 2
    transformation, or adaptation) without written permission from 3Com Technologies. 3Com Technologies reserves guide after use. Please e-mail any comments about this document to 3Com at: [email protected]. Please include the document title (OfficeConnect Fast Ethernet Hub 4, 8 12 User Guide
  • 3Com 3C16722A | User Guide - Page 3
    Fast Ethernet Hub 4 and Hub 8-Front 6 Fast Ethernet Hub 4 and Hub 8-Rear 7 Fast Ethernet Hub 12-Front 8 Fast Ethernet Hub 12-Rear 9 Before You Start 10 Workstation Connections 10 Hub Connections 10 Stacking the Units Together 11 The Rubber Feet 11 The Stacking Clip 11 Positioning Your OfficeConnect
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    4
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    or other piece of equipment to each 100BASE-TX port, as shown in Figure 1. The Hub 4 has four 100BASE-TX ports, the Hub 8 has eight, and the Hub 12 has twelve. Figure 1 Small Network Featuring OfficeConnect Fast Ethernet Hub 4 and Server OfficeConnect hub Network server If you need to connect more
  • 3Com 3C16722A | User Guide - Page 6
    on that segment. Network Utilization LEDs (Hub 8 only) green/yellow/orange Indicates how much your network is being used. Alert Power Activity Collision Port Status 12345678 Green = OK, Yellow = Partitioned Network Utilization 1% 2% 3% 6% 12% 25% 50% 80% OfficeConnect Fast Ethernet Hub 8 6
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    Fast Ethernet Hub 4 and Hub 8-Rear POWER Uplink/Normal 8 1X Power adapter socket Only use the power adapter that is supplied with this OfficeConnect hub. Do not use any other adapter. Uplink/Normal switch Affects the operation of the highest numbered port (port 4 on Hub 4 and port 8 on Hub 8).
  • 3Com 3C16722A | User Guide - Page 8
    to a fault on that segment. Network Utilization LEDs green/yellow/orange Indicates how much your network is being used. Alert Power Collision Port Status 123456 7 8 9 10 11 12 Green = OK, Yellow = Partitioned Network Utilization 1% 2% 3% 6% 12% 25% 50% 80% OfficeConnect Fast Ethernet Hub 12 8
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    Fast Ethernet Hub 12-Rear 6X 1X POWER Uplink/Normal 12 7X Power adapter socket Only use the power adapter that is supplied with this OfficeConnect hub. Do not use any other adapter. Uplink/Normal switch Affects the operation of the highest numbered port (port 12). For connecting the port to
  • 3Com 3C16722A | User Guide - Page 10
    cable ties. s An OfficeConnect Network Assistant CD-ROM. The extra parts mentioned in the next section are not supplied with the hub. Workstation Connections To connect workstations or other equipment to your hub, you need: 1 A 100BASE-TX adapter card for each workstation. 3Com produce a range of
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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 neatly and securely. CAUTION
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    of the power outlet. For Hub 4 or Hub 8: Make two screw holes 150mm (5.9in.) apart. Use the guide at the back of this manual to mark the position of the holes. For Hub 12: Make two screw holes 142mm (5.6in.) apart. Use the guide at the at the back of this manual to mark the position of the
  • 3Com 3C16722A | User Guide - Page 13
    more ports, simply add more OfficeConnect hubs. If you are using the highest-number port (port 4 on Hub 4, port 8 on Hub 8, port 12 on Hub 12) to to your network by adding another OfficeConnect hub. You can directly connect together a maximum of two Fast Ethernet hubs. The total length of cable (A
  • 3Com 3C16722A | User Guide - Page 14
    Hubs You can connect two OfficeConnect hubs together, as seen in Figure 4, with 100BASE-TX in a number of ways, but for simplicity we recommend the following method: 1 Connect the highest-number port (port 4 on Hub 4, port 8 on Hub 8, port 12 on Hub 12) of the lower hub to any port of the upper hub
  • 3Com 3C16722A | User Guide - Page 15
    which needs replacing with another OfficeConnect power adapter. Do not use any other power adapter with the hub. Alert LED continuously lit. There is either continual excessive use of your network (over 80%) or, more likely, a 100BASE-TX port has partitioned due to a loop in your network (in
  • 3Com 3C16722A | User Guide - Page 16
    port that has a connection. There is a problem with this particular connection. Check that the equipment connected to the hub is powered on, operating correctly, and contains a 100BASE-TX connection. The hub 100Mbps adapter in your workstation, if connecting a workstation to the hub. If your adapter
  • 3Com 3C16722A | User Guide - Page 17
    Fast Ethernet protocol that runs over Twisted Pair (TP) cable at 100Mbps. The OfficeConnect hub Fast 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 3C16722A | User Guide - Page 18
    (32 to 105°F) operating temperature 0 to 90% (non-condensing) humidity 225mm (9in.) 35.8mm (1.4in.) 135.4mm (5.3in.) 550g (1.2lb) OfficeConnect Fast Ethernet Hub 12 12 VA 40 BThU/hr power requirement 0 to 40°C (32 to 105°F) operating temperature 0 to 90% (non-condensing) humidity 228mm (9.12in
  • 3Com 3C16722A | User Guide - Page 19
    Standards Functional: ISO 8802/3 IEEE 802.3 Safety: EMC: UL 1950, EN 60950 CSA 22.2 #950 IEC 950 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) †Category 5 screened cables must be used to ensure compliance
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    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 3C16722A | User Guide - Page 21
    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, contact your supplier. s Disconnect the power adapter before moving the unit. WARNING: RJ-45 ports. These are shielded RJ-45
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    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 3C16722A | User Guide - Page 23
    groupe. s Seulement entasser le moyer avec les autres moyeux OfficeConnects. s Pour garantir le respect des normes internationales de des problèmes dans ce guide, contacter votre fournisseur. s Débranchez l'adaptateur électrique avant de retirer cet appareil. AVERTISSEMENT: Ports RJ-45. Il s'agit
  • 3Com 3C16722A | User Guide - Page 24
    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
  • 3Com 3C16722A | User Guide - Page 25
    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 3C16722A | User Guide - Page 26
    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 3C16722A | User Guide - Page 27
    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 27
  • 3Com 3C16722A | User Guide - Page 28
    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 3C16722A | User Guide - Page 29
    the OfficeConnect Fast Ethernet Hub 4 (3C16723A), Hub 8 (3C16722A) and Hub 12 (3C16721A) 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 3C16722A | User Guide - Page 30
    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
  • 3Com 3C16722A | User Guide - Page 31
    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 31
  • 3Com 3C16722A | User Guide - Page 32
    if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, Communications Commission helpful: How to Identify and Resolve Radio-TV Interference Problems This booklet is available from the U.S. Government Printing Office, Washington
  • 3Com 3C16722A | User Guide - Page 33
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    Wall mounting screw hole guide Fast Ethernet Hub 4 and 8 150mm (5.9in.) Wall mounting screw hole guide Fast Ethernet Hub 12 142mm (5.6in.) 35
  • 3Com 3C16722A | User Guide - Page 36
    Part No. DUA 1672-1AAA03 Published June 1999 36
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OfficeConnect
®
Fast Ethernet Hub 4, Hub 8, Hub 12
User Guide (3C16723A, 3C16722A, 3C16721A)