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3Com 3C16792 User Guide - Page 9

Positioning Your Hub, Securing Your Hub, Using Your Hub - guide

UPC - 662705404578

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Positioning Your Hub When installing your OfficeConnect hub, ensure: s It is out of direct sunlight and away from sources of heat. s Cabling is away from power lines, fluorescent lighting fixtures, and sources of electrical noise such as radios, transmitters and broadband amplifiers. s Water or moisture cannot enter the case of the unit. s Air flow around the unit and through the vents in the side of the case is not restricted. We recommend you provide a minimum of 25.4mm (1in.) clearance. Securing Your Hub There are two slots on the underside of the OfficeConnect hub which can be used for wall mounting. It is recommended that you mount the hubs with the LEDs facing upwards to prevent dust entering the cooling vents. When wall mounting your hub, ensure that it is within reach of the power outlet. You need two suitable screws. Ensure that the wall you are going to use is smooth, flat, dry and sturdy. Make two screw holes which are 150mm (5.9in.) apart. Use the template at the back of this guide to mark the position of the holes. Fix the screws into the wall, leaving their heads 3mm (0.12in.) clear of the wall surface. Remove any connections to the hub and locate it over the screw heads. When in line, gently push the hub on to the wall and move it downwards to secure. When making connections, be careful not to push the hub up and off the wall. CAUTION: Only wall mount single hubs, do not wall mount stacked hubs. 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 onto a shelf in a rack. Using Your Hub You are now ready to create your network, using your OfficeConnect hub. Read pages 10-16 if you have 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" on page 15 s "Problem Solving for the Hub 8 and 8C" on page 22 9

Section	Page
OfficeConnect® Ethernet Hub 4, 4C, 8, 8C	1
3Com Corporation n 5400 Bayfront Plaza n Santa Clara, California n 95052-8145	2
Introduction	5
Figure 1 Small Network With OfficeConnect Hub and Optional Print Server	5
Creating your Network	6
What Else Do I Need?	6
Workstation Connections	6
1 10BASE-T connections for all your equipment. 3Com produce a range of easy to install network ad...	6
2 An operating system (for example, Netware or Windows95/98) with network support configured, ru...	6
3 One straight-through TP cable for every workstation, as shown in Figure 2.	6
Transceiver Connections	6
Hub Connections	7
10BASE-2	7
Figure 2 Some of the 10BASE-2 Equipment You May Need	7
10BASE-T	7
Twisted Pair (TP) Cables	7
Stacking the Units Together	8
The Rubber Feet	8
The Stacking Clip	8
1 Place your unit on a flat surface.	8
2 Fit the clip across the top of the unit, as shown in Figure 3 (picture 1), ensuring that the lo...	8
3 Align the fastening pieces over the slots found on each side of the unit.	8
4 Push the clip down gently to secure it, ensuring the fastening pieces snap into the slots on th...	8
1 Rest the second unit on top of the clip and align it with the front of the unit below.	8
2 Press down gently on the unit to secure it onto the clip, ensuring the fastening pieces fit int...	8
Figure 3 Stacking Your Units Together	8
1 Remove the top unit together with the clip. If you hook a finger around one of the the fastenin...	8
2 Push the clip in the center, so it bends towards the base of the unit, and then separate once t...	8
Positioning Your Hub	9
Securing Your Hub	9
Using Your Hub	9
The OfficeConnect Ethernet Hub 4 and 4C	10
Ethernet Hub 4 and 4C—Front	10
Ethernet Hub 4 and 4C—Rear	11
Connecting Workstations and 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
Figure 4 Correct Hub Connections Using 10BASE-2	13
Connecting Hubs Using 10BASE-T	14
1 Starting from the bottom, connect the port 4 of the lower hub to port 3 of the hub immediately ...	14
2 Set all Uplink/Normal switches to Uplink (in) except for the top hub (the one with port 4 not c...	14
Checking Connections	14
Spot Checks	14
Figure 5 Correct Hub Connections Using 10BASE-T	14
Problem Solving for the Hub 4 and 4C	15
Figure 6 Straight-through Cable/ Crossover Cable	16
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
Figure 7 Correct Hub Connections Using 10BASE-2	20
Connecting Hubs Using 10BASE-T	21
1 Starting from the bottom, connect the port 8 of the lower hub to port 7 of the hub immediately ...	21
2 Set all Uplink/Normal switches to Uplink (in) except for the top hub (the one with port 8 not c...	21
Checking Connections	21
Spot Checks	21
Figure 8 Correct Hub Connections Using 10BASE-T	21
Problem Solving for the Hub 8 and 8C	22
Figure 9 Straight-through Cable/ Crossover Cable	23
Networking Terminology	24
Dimensions and Standards	25
Dimensions and Operating Conditions	25
Standards	25
Environmental Statements	26
End Of Life Statement	26
Regulated Materials Statement	26
Environmental Statement about the Documentation	26
Environmental Statement about the Product Packaging	26
Important Safety Information	27
Wichtige Sicherheitshinweise	28
Consignes 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 forRepair	34
Hardware	35
Software	35
Year 2000 Warranty	35
Obtaining Warranty Service	35
Warranties Exclusive	36
Limitation of Liability	36
Disclaimer	37
Governing Law	37
FCC Statement	38
CSA Statement	38
VCCI Statement	38
BCIQ Statement	38

Match case Limit results 1 per page

Positioning Your Hub

When installing your OfficeConnect hub, ensure:

■

It is out of direct sunlight and away from sources of

heat.

■

Cabling is away from power lines, fluorescent lighting

fixtures, and sources of electrical noise such as radios,

transmitters and broadband amplifiers.

■

Water or moisture cannot enter the case of the unit.

■

Air flow around the unit and through the vents in the

side of the case is not restricted. We recommend you

provide a minimum of 25.4mm (1in.) clearance.

Securing Your Hub

There are two slots on the underside of the OfficeConnect

hub which can be used for wall mounting. It is

recommended that you mount the hubs with the LEDs

facing upwards to prevent dust entering the cooling vents.

When wall mounting your hub, ensure that it is

within reach of the power outlet.

You need two suitable screws. Ensure that the wall you are

going to use is smooth, flat, dry and sturdy. Make two

screw holes which are 150mm (5.9in.) apart. Use the

template at the back of this guide to mark the position of

the holes. Fix the screws into the wall, leaving their heads

3mm (0.12in.) clear of the wall surface.

Remove any connections to the hub and locate it over the

screw heads. When in line, gently push the hub on to the

wall and move it downwards to secure. When making

connections, be careful not to push the hub up and off the

wall.

CAUTION:

Only wall mount single hubs, do not wall

mount stacked hubs.

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

onto a shelf in a rack.

Using Your Hub

You are now ready to create your network, using your

OfficeConnect hub.

Read pages 10–16 if you have an:

■

OfficeConnect Ethernet Hub 4 or Hub 4C

Read pages 17–23 if you have an:

■

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):

■

“Problem Solving for the Hub 4 and 4C” on page 15

■

“Problem Solving for the Hub 8 and 8C” on page 22