3COM 3C16702A User Manual

OfficeConnect

®

Ethernet Hub 16C (3C16702A)

User Guide

3Com Corporation ■ 5400 Bayfront Plaza ■ Santa Clara, California ■ 95052-8145

Copyright © 2002, 3Com Technologies. All rights reserved.

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If you are a United States government agency, then this documentation and the
software described herein are provided to you subject to the following:

All technical data and computer software are commercial in nature and
developed solely at private expense. Software is delivered as “Commercial
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[e-mail].

(OfficeConnect Ethernet Hub 16C), part number (DUA1670-2AAA04) and, if
appropriate, the page number.

Please include the document title

Introduction 5

Creating Your Network 6

Ethernet Hub 16C—Front 6
Ethernet Hub 16C—Rear 7

Before You Start 8

Product Registration 8
Workstation Connections 8
Hub Connections 8

Stacking the Units together 9

The Rubber Feet 9

The Stacking Clip 9
Positioning Your OfficeConnect Hub 10
Securing the OfficeConnect Hub 10
Connecting Workstations and Other Equipment to Your Hub 11
Connecting OfficeConnect Hubs Together 11

Connecting Hubs Using 10BASE-2 (Coaxial) 12

Connecting Hubs Using 10BASE-T 13

Checking Hub Connections 13

Spot Checks 13

Problem Solving 14

Networking Terminology 16

Environmental Statements 18

End Of Life Statement 18
Regulated Materials Statement 18
Environmental Statement about the Documentation 18
Environmental Statement about the Product Packaging 18

Regulatory Notices 19

Dimensions and Standards 17

Dimensions and Operating Conditions 17
Standards 17

3

4

I

HP JetDirect
OfficeConnect
print server

OfficeConnect hub

NTRODUCTION

Welcome to the world of networking with 3Com®. In the
modern business environment, communication and sharing
information is crucial. Computer networks have proved to
be one of the fastest modes of communication but, until
recently, only large businesses could afford the networking
advantage. The OfficeConnect

®

product range from 3Com

has changed this, bringing networks to the small office.

The OfficeConnect Ethernet Hub 16C is ideal for creating
small networks. It is compact and attractively designed for
desktop use. This product forms part of the OfficeConnect
range which neatly stack together with the OfficeConnect
stacking clip.

When referring to the OfficeConnect Ethernet Hub 16C, this
guide uses the term ‘OfficeConnect hub’.

A single OfficeConnect hub allows you to create a small
network with up to sixteen workstations, as shown in
Figure 1.

Figure 1

Print Server

Small Network With OfficeConnect Hub And Optional

If you need to connect more workstations, simply use the
stacking clip to connect another OfficeConnect hub to form
a stack (each hub is a single repeater).

The OfficeConnect Ethernet Hub 16C has sixteen 10BASE-T
ports and one 10BASE-2 (Coaxial) connector.

5

C

REATING YOUR

Ethernet Hub 16C—Front

N

ETWORK

Alert LED

orange

Alerts you to
excessive network
use or an isolated
(partitioned)
10BASE-T port.

Alert

Power

Power LED

green

Indicates that the
power supply to
the hub is present.

1

Collision

9

Collision LED

yellow

Flashes each time
a collision is
detected on the
network.
Collisions are part
of normal network
operation.

Port Status

345678

2

11 12

10

Green = OK, Yellow = Partitioned

13 14 15 16 COAX

Port Status LEDs

green/yellow

Indicates the status of each port. If the
LED is green, the link between the port
and the next piece of network equipment
is OK.
If nothing is connected, the LED is off.
If yellow, the port has partitioned due to a
fault on that segment.
The Coaxial port LED can only be yellow

Network Utilization

1% 2% 3% 6% 12% 25% 50% 80%

OfficeConnect Ethernet Hub 16C

6

Network Utilization LEDs

green/yellow/orange

Indicates how much your
network is being used.

3C16702A

Ethernet Hub 16C—Rear

7