3com 3C16700A Uživatelský manuál Strana 1

OfficeConnect®Ethernet Hub 4, 4C, 8, 8CUser Guide (3C16704A, 3C16703A, 3C16700A, 3C16701A)3C16700.book Page i Wednesday, July 7, 1999 5:46 PM

10THE OFFICECONNECT ETHERNET HUB 4 AND 4CEthernet Hub 4 and 4C—Front1234Green=AUIoff=COAX1% 2% 3% 6% 12% 25% 50% 80%Port StatusNetwork UtilizationPart

11Ethernet Hub 4 and 4C—RearPower Adapter socketOnly use the power adapter that is supplied withthis OfficeConnect hub. Do not use any otheradapter.10

12Connecting Workstations and Other Equipment to Your HubWARNING: Please read the ‘Important Safety Information’ section before you start.WARNHINWEIS:

13Connecting Hubs Using 10BASE-2Connect a 10BASE-2 ‘Y’ piece to each of your hubs (Hub 4C only). Connect the ‘Y’ pieces with 10BASE-2 cable to form a

14Connecting Hubs Using 10BASE-TYou can connect hubs together with 10BASE-T in a number of ways, but for simplicity we recommend the following method,

15PROBLEM SOLVING FOR THE HUB 4 AND 4CThe OfficeConnect hub has been designed to aid you when detecting and solving possible problems with your networ

16Port 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-thro

17THE OFFICECONNECT ETHERNET HUB 8 AND 8CEthernet Hub 8 and 8C—FrontAlert12345678 1%2%3%6%12%25%50%80%OfficeConnect Ethernet Hub 8CPort StatusNetwork

18Ethernet Hub 8 and 8C—RearPower Adapter socketOnly use the power adapter that issupplied with this OfficeConnecthub. Do not use any other adapter.10

19Connecting Workstations and Other Equipment to Your HubWARNING: Please read the ‘Important Safety Information’ section before you start.WARNHINWEIS:

3Com Corporation 5400 Bayfront Plaza Santa Clara, California 95052-8145Copyright © 1999, 3Com Technologies. All rights reserved. No part of t

20Connecting Hubs Using 10BASE-2Connect a 10BASE-2 ‘Y’ piece to each of your hubs (Hub 8C only). Connect the ‘Y’ pieces with 10BASE-2 cable to form a

21Connecting Hubs Using 10BASE-TYou can connect hubs together with 10BASE-T in a number of ways, but for simplicity we recommend the following method,

22PROBLEM SOLVING FOR THE HUB 8 AND 8CThe OfficeConnect hub has been designed to aid you when detecting and solving possible problems with your networ

23Port 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-thro

24NETWORKING TERMINOLOGYA Network is a collection of workstations (for example, IBM-compatible personal computers) and other equipment (for example, p

25DIMENSIONS AND STANDARDSDimensions and Operating Conditions StandardsFunctional: ISO 8802/3IEEE 802.3Safety: UL 1950, EN 60950CSA 22.2 #950IEC 950EM

26ENVIRONMENTAL STATEMENTSIt is the policy of 3Com Corporation to be environmentally-friendly in all operations. To uphold our policy, we are committe

27IMPORTANT SAFETY INFORMATIONWARNING: Warnings contain directions that you must follow for your personal safety. Follow all directions carefully.You

28WICHTIGE SICHERHEITSHINWEISEWARNHINWEIS: Warnhinweise enthalten Anweisungen, die Sie zu Ihrer eigenen Sicherheit befolgen müssen. Alle Anweisungen s

29CONSIGNES IMPORTANTES DE SÉCURITÉAVERTISSEMENT: Les avertissements présentent des consignes que vous devez respecter pour garantir votre sécurité pe

3Introduction 5Creating your Network 6What Else Do I Need? 6Workstation Connections 6Transceiver Connections 6Hub Connections 710BASE-2 710BASE-T 7Twi

30TECHNICAL SUPPORT3Com provides easy access to technical support information through a variety of services. This section describes these services.Inf

31Support from Your Network SupplierIf you require additional assistance, contact your network supplier. Many suppliers are authorized 3Com service pa

32Here is a list of worldwide technical telephone support numbers:Country Telephone Number Country Telephone NumberAsia, Pacific RimAustraliaHong Kong

33Latin AmericaArgentinaBrazilChileColombiaAT&T +800 666 50650800 13 32661230 020 064598012 2127MexicoPeruPuerto RicoVenezuela01 800 CARE (01 800

34Returning Products for RepairBefore you send a product directly to 3Com for repair, you must first obtain a Return Material Authorization (RMA) numb

353Com Corporation Limited Warranty3Com OfficeConnect Ethernet Hub 4, 4C, 8, 8CThe duration of the warranty for the OfficeConnect Ethernet Hub 4, 4C,

36pre-authorized by 3Com with a Return Material Authorization (RMA) number marked on the outside of the package, and sent prepaid and packaged appropr

37DISCLAIMERSome countries, states, or provinces do not allow the exclusion or limitation of implied warranties or the limitation of incidental or con

38ELECTROMAGNETIC COMPATIBILITYFCC STATEMENTThis equipment has been tested and found to comply with the limits for a Class B digital device, pursuant

39Wall mounting screw hole guide150 mm (5.9 in)3C16700.book Page 39 Wednesday, July 7, 1999 5:46 PM

4Consignes importantes de sécurité 29Technical Support 30Online Technical Services 30World Wide Web Site 303Com Knowledgebase Web Services 30Support f

Part No. DUA 1670-0AAA04Published June 1999403C16700.book Page 40 Wednesday, July 7, 1999 5:46 PM

5INTRODUCTIONWelcome to the world of networking with 3Com®. In the modern business environment, communication and sharing information is crucial. Comp

6CREATING YOUR NETWORKWhat Else Do I Need?Your OfficeConnect hub comes with: One power adapter for use with the OfficeConnect hub. A Product Registrat

7Hub ConnectionsDepending 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 con

8Stacking the Units TogetherThe Rubber FeetThe four self-adhesive rubber feet prevent your hub from moving around on your desk. Only stick the feet to

9Positioning Your HubWhen installing your OfficeConnect hub, ensure: It is out of direct sunlight and away from sources of heat. Cabling is away from