3Com 3C16792 - OfficeConnect Dual Speed Switch 16 Support and Manuals
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User Guide - Page 1
OfficeConnect® Ethernet Hub 4, 4C, 8, 8C
User Guide (3C16704A, 3C16703A, 3C16700A, 3C16701A)
User Guide - Page 2
... 2000 Compliance: For information on removable media described in this User Guide. 3Com Corporation s 5400 Bayfront Plaza s Santa Clara, California s 95052-8145
Copyright © 1999, 3Com Technologies. All other countries.
3Com, the 3Com logo and OfficeConnect are registered trademarks of such revision or change.
3Com Technologies provides this document to the following:
All technical...
User Guide - Page 3
...Other Equipment to Your Hub 12 Connecting Transceivers to 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 8C-Front 17 Ethernet Hub 8 and 8C-Rear 18...
User Guide - Page 5
... into the small office. Computer networks have the following ports: s The Ethernet Hub 4 has four 10BASE-T ports. They are ideal for desktop use. When referring to use the stacking clip to connect another OfficeConnect hub to four or eight workstations, as shown in Figure 1. s The Ethernet Hub 4C has four 10BASE-T ports, a
10BASE-2 port and an AUI port. This user guide describes how...
User Guide - Page 6
... workstations and other equipment to your hub, you need :
1 10BASE-T connections for all your 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 every workstation, as shown in Figure 2. The extra equipment listed in the port's internal wiring, for you can use transceivers...
User Guide - Page 9
... (5.9in.) apart. Positioning Your Hub
When installing your OfficeConnect hub, ensure:
s It is away from power lines, fluorescent lighting fixtures, and sources of electrical noise such as radios, transmitters and broadband amplifiers. Ensure that the wall you suspect there is recommended that it downwards to (depending on your hub): s "Problem Solving for the Hub 4 and 4C" on to...
User Guide - Page 11
... used , it is supplied with this OfficeConnect hub. Refer to "Connecting Hubs Using 10BASE-T" on page 13.
Refer to "Connecting Hubs Using 10BASE-2" on page 14. Uplink/Normal switch Affects the operation of port 4. Four 10BASE-T RJ-45 ports Use 10BASE-T cable with 10BASE-2 cabling.
Do not use the power adapter that has a 10BASE-T port. POWER
Uplink
Normal
4
1x
COAX...
User Guide - Page 15
... adapter with another OfficeConnect power adapter. Each piece of equipment needs only one connection to your hub. this section does not solve your problem, contact your supplier for information on the port. Check your OfficeConnect hub. Each piece of your network (over 80%) or, more likely, a 10BASE-T port has partitioned due to a loop in your network which needs replacing...
User Guide - Page 16
...
TxD+ 1 TxD- 2 RxD+ 3 RxD- 6
1 TxD+ 2 TxD3 RxD+ 6 RxD- Pins 4, 5, 7 and 8 are not used
16 Refer to Figure 6 below to the hub is powered on and operating correctly. There is a problem with this connection. If the cable is connected to port 4, ensure that has a connection. Pins 4, 5, 7 and 8 are not used
Crossover
TxD+ 1 TxD- 2 RxD+ 3 RxD- 6
1 TxD+ 2 TxD3 RxD+ 6 RxD...
User Guide - Page 18
... Only use any workstation or piece of port 8. You can be used to connect your hub to another OfficeConnect hub. Port 8 can connect the OfficeConnect hub to "Connecting Hubs Using 10BASE-T" on page 20.
If used, it is supplied with RJ-45 connectors. Do not use the power adapter that has a 10BASE-T port. Ethernet Hub 8 and 8C-Rear
10BASE-2 port (Hub 8C only) Can be used to link...
User Guide - Page 22
...OfficeConnect hub has been designed to aid you may have a faulty power adapter which needs replacing with another OfficeConnect power adapter. These problems are rarely serious, the cause is powered on what to light yellow (partition).
22 Perform these actions first:
s Ensure all equipment is usually a disconnected or damaged cable, or incorrect configuration.
Examine your connections...
User Guide - Page 27
... stack the OfficeConnect hub with international safety standards, only use the power adapter that is connected also operates under SELV (Safety Extra Low Voltage) conditions according to which it is supplied with problem solving actions in this guide, contact your personal safety. s To ensure compliance with other OfficeConnect units. s Disconnect the power adapter before you install or...
User Guide - Page 30
... Corporation World Wide Web site, enter this section is correct at : http://knowledgebase.3com.com. s 3Com Knowledgebase Web Services. Online Technical Services
3Com offers worldwide product support 24 hours a day, 7 days a week, through a variety of publication. This section describes these services.
World Wide Web Site
To access the latest networking information on the World Wide Web at...
User Guide - Page 35
...may be warranted for such service. Any software update or replaced or repaired product will be new or reconditioned. 3Com warrants any defective
media with 3Com's standard terms and conditions for a period of one (1) year without advance hardware exchange. 3Com Corporation Limited Warranty
3Com OfficeConnect Ethernet Hub 4, 4C, 8, 8C
The duration of the warranty for ninety (90) days from...
User Guide - Page 36
... may include assistance with telephone technical support for any time, without advance notice. This OfficeConnect® product comes with installation, product specific configuration, and identification of Customer's product purchase. The ninety (90) day period begins on -Arrival. to 3Com for repair, whether under warranty or not. WARRANTIES EXCLUSIVE
IF A 3COM PRODUCT DOES NOT OPERATE AS...
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