Related Manuals for 3Com OfficeConnect Hub 8
Summary of Contents for 3Com OfficeConnect Hub 8
- Page 1 ® OfficeConnect Fast Ethernet Hub 4, Hub 8, Hub 12 User Guide (3C16723A, 3C16722A, 3C16721A)
- Page 2 3Com Technologies. 3Com Technologies reserves the right to revise this documentation and to make changes in content from time to time without obligation on the part of 3Com Technologies to provide notification of such revision or change.
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Page 3: Table Of Contents
Consignes importantes de sécurité 23 Technical Support 24 Online Technical Services 24 World Wide Web Site 24 3Com Knowledgebase Web Services 24 Support from Your Network Supplier 25 Support from 3Com 25 Returning Products for Repair 28 3Com Corporation Limited Warranty 29... -
Page 5: Introduction
NTRODUCTION Welcome to the world of networking with 3Com 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 networking advantage. -
Page 6: Creating Your Network
REATING ETWORK Fast Ethernet Hub 4 and Hub 8—Front Alert LED Power LED Activity LED orange green (Hub 4 only) Alerts you to Indicates that yellow excessive network the power Flashes each time a use or a supply to the packet is received partitioned hub is present. -
Page 7: Fast Ethernet Hub 4 And Hub 8-Rear
OfficeConnect hub. Do not use any other adapter. Uplink/Normal Uplink/Normal switch Affects the operation of the highest numbered port (port 4 on Hub 4 and port 8 on Hub 8). For connecting the port to a workstation, set to Normal (out). For connecting the port to another OfficeConnect unit, set to Uplink (in). -
Page 8: Fast Ethernet Hub 12-Front
Fast Ethernet Hub 12—Front Alert LED Power LED orange green Alerts you to Indicates that excessive network the power use or a supply to the partitioned hub is present. 100BASE-TX port. Alert Power Collision Green = OK, Yellow = Partitioned Collision LED Port Status LEDs yellow... -
Page 9: Fast Ethernet Hub 12-Rear
Only use the power adapter that is supplied with this OfficeConnect hub. Do not use any other adapter. Uplink/Normal Uplink/Normal switch Affects the operation of the highest numbered port (port 12). For connecting the port to a workstation, set to Normal (out). -
Page 10: Before You Start
Workstation Connections To connect workstations or other equipment to your hub, you need: A 100BASE-TX adapter card for each workstation. 3Com produce a range of easy to install network adapter cards, which provide your workstations with 100BASE-T connections. -
Page 11: Stacking The Units Together
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 you are going to use the clip. -
Page 12: Positioning Your Officeconnect Hub
CAUTION: Only wall mount single units, do not wall mount stacked units. Also available from 3Com, is the OfficeConnect Mounting Unit (part number 3C16765). This allows you to firmly secure a stack of OfficeConnect devices to the desktop or... -
Page 13: Connecting Workstations And Other Equipment To Your Hub
(such as a switch), must not exceed 205m (672ft). Each cable (A, B or C) must not exceed 100m (328ft). 3Com recommends that the cable (B) between the Fast Ethernet hubs is no longer than 5m (16.4ft). This allows the maximum hub to workstation cable length (A or C) of 100m (328ft) to be used, as in Figure 3. -
Page 14: Connecting 100Base-Tx Hubs
8 on Hub 8, port 12 on Hub 12) of the lower hub to any port of the upper hub. Set the Uplink/Normal switch on the lower hub to Uplink (in). If you use the highest-number port of the upper hub ensure that its Uplink/Normal Switch is set to Normal. -
Page 15: Problem Solving
Check your hub connections; follow the information given in the “Connecting OfficeConnect Hubs Together” section. It is likely that an Uplink/Normal switch is incorrectly set. Workstation connection not working. Check that you are using a 100Mbps adapter in your workstation. If your adapter can operate at various speeds, ensure that it is set to operate at 100Mbps. - Page 16 100Mbps. Any 10Mbps equipment that you want to link to the hub, is connected through a 10/100 hub or switch. You are using a ‘Straight-through’ 100BASE-TX cable that is properly connected at both ends, and is not damaged.
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Page 17: Networking Terminology
ETWORKING ERMINOLOGY A Network is a collection of workstations (for example, IBM-compatible PCs) and other equipment (for example, printers), connected for the purpose of exchanging information or sharing resources. Networks vary in size, some are within a single room, others span continents. A Local Area Network (LAN) is a network, usually in an office, that spans no more than a single site. -
Page 18: Dimensions And Standards
IMENSIONS AND TANDARDS Dimensions and Operating Conditions OfficeConnect Fast Ethernet Hub 4 4 VA 14 BThU/hr power 0 to 40°C (32 to 105°F) operating temperature 0 to 90% (non-condensing) humidity 500g (1.1lb) OfficeConnect Fast Ethernet Hub 8 9 VA 31 BThU/hr power 0 to 40°C (32 to 105°F) operating... -
Page 19: Standards
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) †Category 5 screened cables must be used to ensure compliance with the Class B requirements of this standard. -
Page 20: Environmental Statements
NVIRONMENTAL 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 natural resources in all operations. -
Page 21: Important Safety Information
MPORTANT AFETY 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 and removal of the unit. -
Page 22: Wichtige Sicherheitshinweise
Es sind keine von dem Benutzer zu ersetzende oder zu wartende Teile in dem Gerät vorhanden. Wenn Sie ein Problem mit dem Switch haben, das nicht mittels der Fehleranalyse in dieser Anleitung behoben werden kann, setzen Sie sich mit Ihrem Lieferanten in Verbindung. -
Page 23: Consignes Importantes De Sécurité
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 avant d’installer ou de retirer l’appareil: Faites très attention lors de l'installation et de la dépose du groupe. -
Page 24: Technical Support
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: World Wide Web site. 3Com Knowledgebase Web Services. -
Page 25: Support From Your Network Supplier
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... - Page 26 Here is a list of worldwide technical telephone support numbers: Country Telephone Number Asia, Pacific Rim Australia 1 800 678 515 Hong Kong 800 933 486 India +61 2 9937 5085 Indonesia 001 800 61 009 Japan 0031 61 6439 Malaysia 1800 801 777 New Zealand...
- Page 27 Country Telephone Number Latin America Argentina AT&T +800 666 5065 Brazil 0800 13 3266 Chile 1230 020 0645 Colombia 98012 2127 North America 1 800 876-3266 Country Telephone Number Mexico 01 800 CARE (01 800 Peru 2273) Puerto Rico AT&T +800 666 5065 Venezuela 800 666 5065 AT&T +800 666 5065...
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Page 28: Returning Products For Repair
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. -
Page 29: 3Com Corporation Limited Warranty
January 1, 2000, and Customer notifies 3Com before the later of April 1, 2000, or ninety (90) days after purchase of the product from 3Com or its authorized reseller,... - Page 30 (DOA) and a replacement shall be provided by advance replacement. The replacement product will normally be shipped not later than three (3) business days after 3Com’s verification of the DOA product, but may be delayed due to export or import procedures. When an advance replacement is provided and...
- Page 31 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 Contracts for the International Sale of Goods. 3Com Corporation 5400 Bayfront Plaza Santa Clara, CA 95054...
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Page 32: Electromagnetic Compatibility
LECTROMAGNETIC 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,”...