3Com 3C16704A User Guide
3Com 3C16704A - OfficeConnect TP4 Hub Manual
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- 3Com 3C16704A | User Guide - Page 1
OfficeConnect® Ethernet Hub 4, 4C, 8, 8C User Guide (3C16704A, 3C16703A, 3C16700A, 3C16701A) - 3Com 3C16704A | User Guide - Page 2
3Com Year 2000 Web page: http://www.3com.com/products/yr2000.html Environmental Statement: Please recycle this user guide after use. 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 - 3Com 3C16704A | User Guide - Page 3
the AUI Port 12 Connecting OfficeConnect Ethernet Hubs Together 12 Connecting Hubs Using 10BASE-2 13 Checking Connections 13 Connecting Hubs Using 10BASE-T 14 Checking Connections 14 Spot Checks 14 Problem Solving for the Hub 4 and 4C 15 The OfficeConnect Ethernet Hub 8 and 8C 17 Ethernet Hub 8 and - 3Com 3C16704A | User Guide - Page 4
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 | User Guide - Page 5
OfficeConnect Ethernet Hub 8 and OfficeConnect 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 - 3Com 3C16704A | User Guide - Page 6
equipment. 3Com produce a range of easy to install network adapter cards, which provide your workstations with 10BASE-T connections. 3 2 1 6 2 An operating system (for example, Netware or Windows 95/98) with network support configured, running on your workstations. 3 One straight-through TP cable - 3Com 3C16704A | User Guide - Page 7
of the other ports. s Two 10BASE-2 50 Ohm terminators (end pieces). Figure 2 Some of the 10BASE-2 Equipment You May Need 10BASE-T If you have additional hubs you want to connect using 10BASE-T, you need: s One straight-through TP cable for each extra hub. Twisted Pair (TP) Cables To connect - 3Com 3C16704A | User Guide - Page 8
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 | User Guide - Page 9
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 (depending on your hub): s "Problem Solving for the Hub 4 and 4C - 3Com 3C16704A | User Guide - Page 10
is being used. Alert Port Status Power ActivityCollision 1234 Green = 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 - 3Com 3C16704A | User Guide - Page 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. AUI port (Hub 4C only) Allows 10Mbps transceivers of different media types to be connected to the hub. Connecting a transceiver automatically - 3Com 3C16704A | User Guide - Page 12
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-T cable - 3Com 3C16704A | User Guide - Page 13
to unlock it, and remove it. If you have connected a 10Mbps Ethernet transceiver to the AUI port, the 10BASE-2 port will be disabled. You can use this transceiver to connect your hubs but we recommend that you connect your hubs using 10BASE-T cable (refer to the next section). When using 10BASE - 3Com 3C16704A | User Guide - Page 14
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 Connections 1x When you have connected your hubs, power them on. The Port Status LEDs - 3Com 3C16704A | User Guide - Page 15
you may have a faulty power adapter 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 10BASE-T port has partitioned due to - 3Com 3C16704A | User Guide - Page 16
connected at both ends, and is not damaged. If the cable is connected to port 4, ensure that the Uplink/Normal 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 a straight - 3Com 3C16704A | User Guide - Page 17
. It is yellow if the port has partitioned. Alert Port 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 - 3Com 3C16704A | User Guide - Page 18
of equipment that has a 10BASE-T port. Port 8 can be used to link to another OfficeConnect hub. Refer to "Connecting Hubs Using 10BASE-T" on page 21. Uplink/Normal 8 1x POWER COAX Power Adapter socket Only use the power adapter that is supplied with this OfficeConnect hub. Do not use any other - 3Com 3C16704A | User Guide - Page 19
using a straight-through TP cable, ensure the Uplink/Normal switch is set to Normal (out). The hub detects all port connections, so you can start using your network immediately. When you need more ports, simply add more OfficeConnect hubs. Connecting OfficeConnect Ethernet Hubs Together You can - 3Com 3C16704A | User Guide - Page 20
use 50 Ohm 10BASE-2 cables and a 'Y' piece for each hub. You can use 'T' pieces but 'Y' pieces provide optimum clearance of the other ports. Checking Connections When you have connected your hubs, power them on. The Port Status LEDs for the 10BASE-2 ports you have used should be off. If they are not - 3Com 3C16704A | User Guide - Page 21
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 hubs, power them on. The Port Status LEDs for the 10BASE-T ports you have used should - 3Com 3C16704A | User Guide - Page 22
you may have a faulty power adapter 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 10BASE-T port has partitioned due to - 3Com 3C16704A | User Guide - Page 23
to the hub is powered on and operating correctly. Refer to Figure 9 below to compare the wiring of a straight-through and a crossover cable. Figure 9 Straight-through Cable/Crossover Cable Normal port Pin 1 Rx+ 2 Rx- 3 Tx+ 4 5 6 Tx- 7 8 Uplink Normal Pin port port Pin 1 1 Rx - 3Com 3C16704A | User Guide - Page 24
the network. 10BASE-T is the name given to the Ethernet protocol that runs over Twisted Pair (TP) cable at 10Mbps. The OfficeConnect hub uses RJ-45 type connectors for connecting your TP network. 10BASE-2 is the name given to the Ethernet protocol that runs over 50 Ohm Coaxial cable. A Network - 3Com 3C16704A | User Guide - Page 25
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 Weight 4 VA, 14 BThU/hr 500g (1.1 lb) 12 VA, 40 BThU/hr 550g (1.2 lb - 3Com 3C16704A | 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 | User Guide - Page 27
s There are no 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 - 3Com 3C16704A | 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 | User Guide - Page 29
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 3C16704A | User Guide - Page 30
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 3C16704A | User Guide - Page 31
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 contact 3Com for assistance, have the following information ready: s Product model name, part number, and serial number. s A list of - 3Com 3C16704A | 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 611 2230 (0)2 3455 6455 0080 611 261 001 800 611 2000 0800 0227788 800 11376 00800 3111206 0800 831416 0800 995014 900 983125 020 795482 0800 55 - 3Com 3C16704A | 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 | User Guide - Page 34
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 Fax Number Asia, Pacific Rim + 65 543 6500 + 65 543 6348 - 3Com 3C16704A | 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 | 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 | 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 | User Guide - Page 38
and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there USER The user may find the following booklet prepared by the Federal Communications Commission helpful: How to Identify and Resolve Radio-TV Interference Problems - 3Com 3C16704A | User Guide - Page 39
Wall mounting screw hole guide 150 mm (5.9 in) 39 - 3Com 3C16704A | User Guide - Page 40
Part No. DUA 1670-0AAA04 Published June 1999 40
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OfficeConnect
®
Ethernet Hub 4, 4C, 8, 8C
User Guide (3C16704A, 3C16703A, 3C16700A, 3C16701A)