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User Guide - Page 1
OfficeConnect®
Ethernet Hub 4, 4C, 8, 8C (3C16704A, 3C16703A, 3C16700A, 3C16701A)
User Guide
User Guide - Page 2
... in, or delivered to 3Com at: pddtechpubs_comments@3Com.com.
Software is delivered as ...3Com Technologies provides this User Guide. Unless otherwise indicated, 3Com registered trademarks are provided in a directory file named LICENSE.TXT or !LICENSE.TXT. The 3Com... Please include the document title (OfficeConnect Ethernet Hub 4, Hub 4C, Hub 8, Hub 8C), part number (DUA1670-0AAA06) and, if...
User Guide - Page 3
... 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
Connecting Workstations and Other Equipment to Your Hub 19 Connecting OfficeConnect Ethernet Hubs Together 19
Connecting Hubs Using 10BASE-2 20 Checking Connections 20 Connecting Hubs Using 10BASE-T 21 Checking Connections...
User Guide - Page 5
... port. The OfficeConnect® product range from 3Com has changed this user guide contains general and specific information. This user guide describes how to the world of networking with the OfficeConnect stacking clip. Figure 1 Small Network With OfficeConnect Hub and Optional Print Server
HP JetDirect OfficeConnect print server OfficeConnect hub
The OfficeConnect hubs have similar features...
User Guide - Page 6
...You can use with the OfficeConnect hub.
The maximum length you can now register your OfficeConnect hub on the 3Com web site and receive up-to install network adapter cards, which provide your workstations with 10BASE-T connections.
3
2 1
2 An operating system (for example, Netware or Windows 95/98) with : I Need?
http://support.3com.com/registration/frontpg.pl
Workstation Connections...
User Guide - Page 9
... When making connections, be used for the Hub 8 and 8C" on page 15 I "Problem Solving for wall mounting.
You need two ...hubs, do not wall mount stacked hubs. Using Your Hub
You are going to create your network, using your OfficeConnect hub. Use the template at the back of this guide to prevent dust entering the cooling vents. Positioning Your Hub
When installing your OfficeConnect hub...
User Guide - Page 12
... all port connections, so you start using a straight-through TP cable, ensure the Uplink/Normal switch is set to do not need more ports, simply add more OfficeConnect hubs.
To connect a 10BASE-T cable, simply slot the connector into place.
WARNING: Please read the 'Important Safety Information' sheet before you can start . Connect one...
User Guide - Page 15
... green, on receiving a valid packet on . Perform these actions first:
I Power off the hubs, wait about 5 seconds and then power on what to do next. Alert LED continuously lit.... port is incorrectly set. Check the following symptoms and solutions:
Power LED not lit. Check your supplier for information on the hubs. PROBLEM SOLVING FOR THE HUB 4 AND 4C
The OfficeConnect hub has been designed to...
User Guide - Page 17
...part of network equipment is powered on the network. Activity LED (Hub 8 only) yellow Flashes each port. green -
Nothing is received on that the hub is OK. The 10BASE-2 port LED (Hub 8C... COAX Green = OK, Yellow = Partitioned
Network Utilization
3C16701A
1% 2% 3% 6% 12% 25% 50% 80%
OfficeConnect Ethernet Hub 8C
Power LED green Indicates that segment.
Port Status LEDs green...
User Guide - Page 19
... a workstation using 10BASE-T cables. If you do not use either 10BASE-T or 10BASE-2 (Hub 8C only) to Your Hub
WARNING: Please read the 'Important Safety Information' sheet before you do not need more ports, simply add more OfficeConnect hubs. When the connector is set to it . To disconnect the cable, push the connector's latch in , its...
User Guide - Page 20
... 'T' pieces but 'Y' pieces provide optimum clearance of the segment by fitting terminators (end pieces). Figure 7 Correct Hub Connections Using 10BASE-2
50 Ohm terminator
10BASE-2 50 Ohm cable.
Checking Connections When you have connected your hubs (Hub 8C only). You can use 50 Ohm 10BASE-2 cables and a 'Y' piece for the 10BASE-2 ports you have used...
User Guide - Page 21
... the Hub 8 and 8C" on . This is 100m (328ft) Connecting Hubs Using 10BASE-T
You can be connected to a workstation provided that it has partitioned. Repeat this is secure and not pulled taut.
21
Switch set to Uplink (in Figure 8:
1 Starting from the bottom, connect the port 8 of the hub immediately above. If they are problems with...
User Guide - Page 22
... green, on receiving a valid packet on the hubs. PROBLEM SOLVING FOR THE HUB 8 AND 8C
The OfficeConnect hub has been designed to aid you may have a faulty power adapter which needs replacing with another OfficeConnect power adapter. Port Status LED yellow for the 10BASE-2 port when the 10BASE-2 port is incorrectly set.
Check your connections and remove the
loop...
User Guide - Page 24
...) attempt to transmit at 10Mbps. Networks vary in collisions can indicate a problem with 10BASE-2 cable, via single speed hubs, the entire cable forms a single segment. Ethernet is a type of ...equipment (Hub 4C only).
24 On coaxial segments an increase in size, some are a part of normal Ethernet operation and occur if two or more than a single site.
The OfficeConnect hub uses RJ...
User Guide - Page 25
...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
2.33 W 7.96 BThU/hr
10.3 W 35.18 BThU/hr
3.13 ... EN 55024 FCC Part 15 Class B†* ICES-003 Class B VCCI Class B† CNS 13438 Class A
Environmental:
EN 60068 (IEC 68) Various parts
†Category ...
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