3Com 3CR17341-91, 3CR17342-91, 3CR17343-91, 3CR17331-91, 3CR17332-91 Getting Started

3Com® Switch 4210 Family

Getting Started

Switch 4210 PWR 9-Port (3CR17341-91)
Switch 4210 PWR 18-Port (3CR17342-91)
Switch 4210 PWR 26-Port (3CR17343-91)

Switch 4210 9-Port (3CR17331-91)
Switch 4210 18-Port (3CR17332-91)
Switch 4210 26-Port (3CR17333-91)

www.3Com.com
Part Number: 10016119 Rev. AA
Published: July, 2007

3Com Corporation
350 Campus Drive
Marlborough, MA
USA 01752-3064

Copyright © 2006-2007, 3Com Corporation. All rights reserved. No part of this documentation may be reproduced in any
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CONTENTS

ABOUT THIS GUIDE

Download the Latest Software and Documentation for Your 3Com Switch 5
Before You Start 5
Conventions 5
Related Documentation 6

1 PRODUCT INTRODUCTION

Overview 7
Introduction to the Switch 4210 Family PWR Switches 8
Introduction to the Switch 4210 Family Non-PWR Models 13
Technical Specifications 17
SFP Modules Supported for the Switch 4210 19

2 INSTALLING THE SWITCH

Rack-Mounting the Switch 22
Mounting the Switch on a Desktop 24
Connecting the Power Cords and the Ground Wire 25
Connecting Console Cable 27

3 SETTING UP FOR MANAGEMENT

Methods of Managing a Switch 29
Setting Up Overview 31
Viewing Automatically Configured IP Information 34
Manually Configuring IP Information 36
Setting Up Command Line Interface Management 41
Setting Up Command Line Interface Management using SSH 42
Setting Up Web Interface Management 42
Setting Up SNMP Management 43
Default Users and Passwords 44

4 PROBLEM SOLVING

Solving Problems Indicated by LEDs 48
Solving Hardware Problems 49
Solving Communication Problems 50
Solving Fabric Formation Problems 51

5 UPGRADING SOFTWARE

Upgrade Options 53
Contents of the Installation File 54
Upgrading from the Command Line Interface 54
Configuring the Boot Loader and Updating the Boot ROM Using the CLI 60
Upgrading from the Boot ROM Menu 62
Configuring the Boot Loader Using the Boot Menu 67

A PIN-OUTS

Null Modem Cable 71
PC-AT Serial Cable 71
Modem Cable 72
Ethernet Port RJ-45 Pin Assignments 72

B OBTAINING SUPPORT FOR YOUR 3COM PRODUCTS

Register Your Product to Gain Service Benefits 73
Solve Problems Online 73
Purchase Extended Warranty and Professional Services 73
Access Software Downloads 73
Contact Us 74

C 3COM NETWORK MANAGEMENT

3Com Network Supervisor 77
3Com Network Director 78
3Com Network Access Manager 78
3Com Enterprise Management Suite 79
Integration Kit with HP OpenView Network Node Manager 79

ABOUT THIS GUIDE

Download the Latest
Software and
Documentation for

Thank you for purchasing a 3Com Switch 4210. As part of our commitment to
bringing you the most capable and dependable network equipment, 3Com offers
free software maintenance updates and documentation updates on our website.

Your 3Com Switch

To obtain the most up-to-date operating software and user documentation for the
Switch 4210, point your web browser to: www.3Com.com/4210 and select the
“Support and Registration” link.

Please note that you must register your 3Com switch to receive software
upgrades. To register, point your web browser to eSupport.3Com.com.

Before You Start The guide is intended for use by network administrators who install and set up

network equipment; consequently, it assumes a basic working knowledge of LANs
(Local Area Networks).

Release Notes The Release Notes provide important information about the current software

release, including new features, modifications, and known problems. You should
read the Release Notes before installing the switch in your network.

If the information in the Release Notes differs from this guide, follow the
instructions in the Release Notes.

User guides and release notes are available in Adobe Acrobat Reader Portable
Document Format (PDF) on the 3Com World Wide Web site:

http://www.3com.com

Conventions Table 1 lists important conventions that are used throughout this guide.

Tabl e 1 Notice Icons

Icon Notice Type Description

Information note Information that describes important features or

instructions

Caution Information that alerts you to potential loss of data or

potential damage to an application, system, or device

Warning Information that alerts you to potential personal injury

6 ● 3Com Switch 4210 Family

Command Reference

Related Documentation

In addition to this guide, the Switch 4210 documentation set includes the following:

■ 3Com Switch 4210 Family Configuration Guide

This guide contains information on the features supported by your switch and
how they can be used to optimize your network. It is supplied in PDF format on
the 3Com Web site.

■ 3Com Switch 4210 Family Command Reference Guide

This guide provides detailed information about the web interface and command
line interface that enable you to manage the switch. It is supplied in PDF format on
the 3Com Web site.

■ Release Notes

These notes provide information about the current software release, including
new features, modifications, and known problems. The release notes are supplied
in hard copy with your switch.

PRODUCT INTRODUCTION

1

Overview The 3Com Switch 4210 Family provides high-performance, high-density,

easy-to-install, NMS-manageable intelligent Ethernet switches that support
wire-speed Layer 2 switching.

Three of the Switch 4210 Family models support industry standard IEEE 802.32f
Power over Ethernet (PoE). These models are displayed in described in Table 1.

Figure 1 Power over Ethernet models

Place holder for picture

Tabl e 1 Power over Ethernet models

Number of

Model Power supply

Switch 4210 PWR
9-port

Switch 4210 PWR
18-port

Switch 4210 PWR
26-port

AC input 8 One Combo port 1

AC input 16 Two Combo ports 1

AC or RPS DC
input

10/100 Mbps
ports

24 Two Combo ports 1

Number of 1000
Mbps uplink
ports

Number of
Console
ports

Three of the Switch 4210 Family modesl for available for simple connectivity
without PoE. These models are displayed in Figure 2.

Figure 2 Non Power over Ethernet models

Place holder for graphic

Tabl e 2 Non Power over Ethernet models

Number of
10/100 Mbps

Model Power supply

Switch 4210
9-port

Switch 4210
18-port

Switch 4210
26-port

AC input 8 One Combo port 1

AC input 16 Two Combo ports 1

AC input 24 Two Combo ports 1

ports

Number of 1000
Mbps uplink
ports

Number of
Console
ports

8 CHAPTER 1: PRODUCT INTRODUCTION

(1) (2)

Introduction to the Switch 4210 Family PWR Switches

Switch 4210 9-port PWR Front panel

Switch 4210s 9-port PWR each provide eight 10/100Base-TX autosensing Ethernet
ports, one 10/100/1000Base-T Ethernet port, one 100/1000Base SFP ports, and
one Console port. The SFP port and the 10/100/1000BASE-T Ethernet port form a
Combo port. Either the SFP port or the 10/100/1000BASE-T Ethernet port can be
used at a time.

Figure 3 shows the front panel of an Switch 4210 9-port PWR.

Figure 3 Front panel of an Switch 4210 9-port PWR

(1) (2) (3) (4)

(5)(6)(7)(8)

(1) 10/100Base-TX autosensing Ethernet port status LED

(2) Link LED for Combo port (3) Console port

(4) Power LED (PWR) (5) A/L LED

(6) D/S LED (7) Mode button

(8) Active LED for Combo port

Rear panel

Figure 4 The Switch 4210 9-port PWR model’s rear panel

(1) AC power socket (2) Grounding screw

Side panel

Each Switch 4210 9-port PWR provides a security slot through which you can lock
the device together with an irremovable object to prevent theft.

The security slot is located on the left side panel, as shown in Figure 7.

Introduction to the Switch 4210 Family PWR Switches 9

n

Switch 4210 PWR

18-port

If the left screw hole above the security slot is used, the security slot cannot be
used.

Power system

Switch 4210s 9-port PWR support AC input.

■ Rate voltage range: 100 VAC to 240 VAC, 50 Hz/60 Hz

■ Input voltage range: 90 VAC to 264 VAC, 47 HZ to 63 Hz

Cooling system

Switch 4210s 9-port PWR each run two fans for heat dissipation.

Front panel

Switch 4210s 18-port PWR each provide sixteen 10/100Base-TX autosensing
Ethernet ports, two 10/100/1000Base-T Ethernet ports, two 100/1000Base SFP
ports, and one Console port. Each SFP port and the corresponding
10/100/1000BASE-T Ethernet port form a Combo port. For each Combo port,
either the SFP port or the corresponding 10/100/1000BASE-T Ethernet port can be
used at a time.

Figure 5 shows the front panel of an Switch 4210 18-port PWR.

Figure 5 Front panel of an Switch 4210 18-port PWR

(1) (2) (3) (4)

(1) 10/100Base-TX autosensing Ethernet port status LED

(2) Link LED for Combo port (3) Console port

(4) Power LED (PWR) (5) A/L LED

(6) D/S LED (7) Mode button

(8) Active LED for Combo port

(5)(6)(7)(8)

10 CHAPTER 1: PRODUCT INTRODUCTION

(1) (2)

Rear panel

Figure 6 Rear panel of an Switch 4210 18-port PWR

(1) AC power socket (2) Grounding screw

Side panel

Each Switch 4210 18-port PWR provides a security slot, through which you can
lock the device together with an irremovable object to prevent theft.

The security slot is located on the left side panel, as shown in Figure 7.

n

Figure 7 Security slot on left side panel of an Switch 4210 18-port PWR

(1)

(1): Security slot

If the left screw hole above the security slot is used, the security slot cannot be
used.

Power system

Switch 4210s 18-port PWR support AC input.

■ Rate voltage range: 100 VAC to 240 VAC, 50 Hz/60 Hz

■ Input voltage range: 90 VAC to 264 VAC, 47 Hz to 63 Hz

Switch 4210 PWR 18-Port units are able to power attached devices using standard

802.3af Power over Ethernet. Total available power for PoE on this model is
123W, enough to power 9-Ports at full 15.4W required of the PoE standard.

Cooling system

Switch 4210s 18-port PWR each run two fans for heat dissipation.

Introduction to the Switch 4210 Family PWR Switches 11

(1) (2) (3) (4)

(5)(6)(7)(8)

(1) (2) (3)

Switch 4210 PWR 18-Port units are able to power attached devices using standard

802.3af Power over Ethernet. Total available power for PoE on this model is
123W, enough to power 9-Ports at full 15.4W required of the PoE standard.

Switch 4210 PWR

26-port

Front panel

The Switch 4210 26-port PWR model provides 24 10/100Base-TX autosensing
Ethernet ports, two 10/100/1000Base-T Ethernet ports, two 100/1000Base SFP
ports, and one Console port. Each SFP port and the corresponding
10/100/1000BASE-T Ethernet port form a Combo port. For each Combo port,
either the SFP port or the corresponding 10/100/1000BASE-T Ethernet port can be
used at one time.

Figure 8 shows the front panel of the Switch 4210 26-port PWR model.

Figure 8 The Switch 4210 26-port PWR model’s front panel

(1) 10/100Base-TX autosensing Ethernet port status LED

(2) Link LED for Combo port (3) Console port

(4) Power LED (PWR) (5) A/L LED

(6) D/S LED (7) Mode button

(8) Active LED for Combo port

Rear panel

Figure 9 Rear panel of an Switch 4210 26-port PWR

(1) AC power socket (2) DC power socket

(3) Grounding screw

12 CHAPTER 1: PRODUCT INTRODUCTION

Power system

Switch 4210s 26-port PWR support AC input or DC input.

1 AC input

■ Rated voltage range: 100 VAC to 240 VAC, 50 Hz/60 Hz

■ Input voltage range: 90 VAC to 264 VAC, 47 Hz to 63 Hz

2 DC input

■ Rated voltage range: -52 VDC to -56 VDC

n

The Switch 4210 PWR

Front Panel LEDs

Switch 4210 PWR 26-Port units are able to power attached devices using standard

802.3af Power over Ethernet. Total available power for PoE on this model is
370W, enough to power 24-Ports at full 15.4W required of the PoE standard.

3Com recommends a Redundant Power System (RPS) from Eaton Powerware for
providing DC power to the Switch 4210 PWR 26-Port. For full details, refer to
www.3com.com/rps.

Cooling system

Switch 4210s 26-port PWR each run four fans for heat dissipation.

Power LED

Figure 11 describes the power LED on the Switch 4210 PWR model.

Tab l e 3 The power LED on the Switch 4210 PWR models

LED Mark on the panel Status Description

Power LED PWR ON The switch is powered on.

OFF The switch is powered off.

10/100BASE-TX Autosensing Ethernet Port Status LED

There are two port status LEDs on both sides (yellow LED on the left and green LED
on the right) of the 10/100BASE-TX Ethernet port on the Switch 4210 PWR
models. They indicate the port’s active, link, duplex, and speed status.

In addition, there are an A/L LED and a D/S LED on each model of 3Com Switch
4210 Family PWR. These two LEDs indicate the port status LEDs mode. When the
A/L LED is on, the port status LEDs respectively indicate the active status and link
status of the ports. When the D/S LED is on, the port status LEDs respectively
indicate the duplex status and speed status of the ports. Either the A/L LED or the
D/S LED is on at a specific time. For details, see Figure 8.

Introduction to the Switch 4210 Family Non-PWR Models 13

Tabl e 4 Port status LEDs on the Switch 4210 PWR models

Port status
mode LED Port status LED Description

The A/L LED is
on

The D/S LED is
on

Yellow LED
(left)

Green LED
(right)

Yellow LED
(left)

Green LED
(right)

BLINKING The port is in the active state and there is

traffic on the port.

OFF The port is in the active state but there is no

traffic on the port.

ON The port is connected properly.

OFF The port is not connected or is incorrectly

connected.

ON The port operates in the full duplex mode.

OFF The port operates in the half duplex mode.

ON The port rate is 100 Mbps.

OFF The port rate is 10 Mbps.

You can change the mode of the port status LEDs by pressing the Mode button.
After a switch is powered on, the A/L LED is on initially. If you press the Mode
button, the D/S LED will be on. After that, if you press the Mode button again
within 45 seconds, the A/L LED will be on again. Otherwise, the A/L LED will
automatically be on 45 seconds later.

Introduction to the Switch 4210 Family Non-PWR Models

Switch 4210 9-port Front panel

1000 Mbps Uplink Port Status LED

Figure 9 describes the 1000 Mbps upline port status LET on the Switch 4210.

Tabl e 5 The 1000 Mbps uplink port status LED on 4210 PWR models

LED

1000 Mbps uplink port
link LED

1000 Mbps uplink port
active LED

Mark on the
panel Status Description

LINK ON The port is connected properly.

OFF The port is not connected or is

incorrectly connected.

ACT BLINKING The port is in the active state and

there is traffic on the port.

OFF The port is in the active state but

there is no traffic on the port.

This section describes each Switch 4210 Family model.

The Switch 4210 9-port model provides eight 10/100Base-TX autosensing
Ethernet ports, one 10/100/1000Base-T autosensing Ethernet port, one
100/1000Base-X SFP port, and one Console port. The SFP port and the
10/100/1000BASE-T autosensing Ethernet port form a Combo port. For the
Combo port, either the SFP port or the 10/100/1000BASE-T Ethernet port can be
used at a time.

Figure 10 shows the front panel of the Switch 4210 9-port model.

14 CHAPTER 1: PRODUCT INTRODUCTION

(1) (2) (4)

(5)(6)(7)(8)

(3)

(7)

(1) (2)

Figure 10 The Switch 4210 9-port model’s front panel

(1) 10/100Base-TX autosensing port Speed LED (green)

(2) 10/100Base-TX autosensing port (3) Combo port Speed LED (green)

(4) 10/100/1000Base-T autosensing port (5) Console port

(6) 100/1000Base-X SFP port (7) Link/Act LED (green)

(8) Power LED (PWR)

.

Rear panel

Figure 11 The Switch 4210 9-port model’s rear panel

(1) Grounding screw (2) AC input terminal block

Power system

The Switch 4210 9-port model supports AC input.

■ Rate voltage range: 100 VAC to 240 VAC, 50 Hz/60 Hz

■ Input voltage range: 90 VAC to 264 VAC, 47 Hz to 63 Hz

Cooling system

The Switch 4210 cools off naturally.

Switch 4210 18-port Front panel

The Switch 4210 18-port models provide 16 10/100Base-TX autosensing Ethernet
ports, two 10/100/1000Base-T autosensing Ethernet ports, two 100/1000Base-X
SFP ports, and one Console port. Each SFP port and the corresponding
10/100/1000BASE-T autosensing Ethernet port form a Combo port. For each

Introduction to the Switch 4210 Family Non-PWR Models 15

(1) (2)

(4)

(5)(6)

(7)

(8)

(3)

(7)

(1) (2)

Combo port, either the SFP port or the corresponding 10/100/1000BASE-T
Ethernet port can be used at one time.

Figure 12 shows the Switch 4210 18-port model’s front panel.

Figure 12 The Switch 4210 18-port model’s front panel

(1) 10/100Base-TX autosensing port Speed LED (green)

(2) 10/100Base-TX autosensing port (3) Combo port Speed LED (green)

(4) 10/100/1000Base-T autosensing port (5) Console port

(6) 100/1000Base-X SFP port (7) Link/Act LED (green)

(8) Power LED (PWR)

Rear panel

Figure 13 The Switch 4210 18-port model’s rear panel

(1) Grounding screw (2) AC input terminal block

Power system

The Switch 4210 18-port model’s support AC input.

■ Rate voltage range: 100 VAC to 240 VAC, 50 Hz/60 Hz

■ Input voltage range: 90 VAC to 264 VAC, 47 Hz to 63 Hz

Cooling system

3Com Switch 4210 non-PWR models have a fanless design cooled from natural
airflow.

Switch 4210 26-port Front panel

The Switch 4210 26-port front panel provides 24 10/100Base-TX autosensing
Ethernet ports, two 10/100/1000Base-T autosensing Ethernet ports, two
100/1000Base-X SFP ports, and one Console port. Each SFP port and the
corresponding 10/100/1000BASE-T autosensing Ethernet port form a Combo
port. For each Combo port, either the SFP port or the corresponding
10/100/1000BASE-T Ethernet port can be used at a time.

16 CHAPTER 1: PRODUCT INTRODUCTION

(1) (2) (4)

(5)(6)

(7)(8)

(3)

(7)

(1) (2)

Figure 14 shows the front panel of the Switch 4210 26-port model.

Figure 14 The Switch 4210 26-port front panel

(1) 10/100Base-TX autosensing port Speed LED (green)

(2) 10/100Base-TX autosensing port (3) Combo port Speed LED (green)

(4) 10/100/1000Base-T autosensing port (5) Console port

(6) 100/1000Base-X SFP port (7) Link/Act LED (green)

(8) Power LED (PWR)

The Switch 4210 Family

Front Panel LEDs

Rear panel

Figure 15 The Switch 4210 26-port rear panel

(1) Grounding screw (2) AC input terminal block

Power system

Switch 4210s 26-port support AC input.

■ Rate voltage range: 100 VAC to 240 VAC, 50 Hz/60 Hz

■ Input voltage range: 90 VAC to 264 VAC, 47 Hz to 63 Hz

Cooling system

3Com Switch 4210 non-PWR models have a fanless design cooled from natural
airflow.

Power LED

Table 6 describes the power LED on the Switch 4210.

Tab l e 6 The power LED on the Switch 4210

LED Mark on the panel Status Description

Power LED Power ON The switch is powered on.

OFF The switch is powered off.

Technical Specifications 17

Port LED

Figure 12 describes the 10/100Base-TX autosensing port’s Link/Act LED.

Tabl e 7 The Link/Act LED on the 3Com Switch 4210

LED Status Description

Link/Act LED (green) ON The port is connected properly.

BLINKING The port is in the active state and there is

traffic on the port.

OFF The port is not connected or is incorrectly

connected.

Table 8 describes the Speed LED of the 10/100Base-TX port.

Tabl e 8 The 10/100Base-TX port Speed LED on the Switch 4210

LED Status Description

10/100Base-TX autosensing
port Speed LED (green)

ON The port is operating at 100 Mbps.

OFF The port is operating at 10 Mbps.

For a description of the Link/Act LED of the Combo port, see Figure 12. When the
port is connected correctly, the Speed LED indicates the operating speeds of the
Combo port, as shown in Figure 10.

Technical Specifications

Tabl e 9 The Combo port Speed LED on the Switch 4210

LED Operating port Status Description

Combo port
Speed LED
(green)

100/1000Base-X
SFP port

10/100/1000Base-T autosensing
port

Connected
to a 1000
Mbps optical
module

Connected
to a 100
Mbps optical
module

ON The port is operating at

1000 Mbps.

OFF The port is operating at

100 Mbps.

ON The port is operating at

1000 Mbps.

OFF The port is operating at

10/100 Mbps.

Table 10 Technical specifications for the Switch 4210

Model Switch 4210 26-port Switch 4210 18-port Switch 4210 9-port

Physical dimensions (H
× W × D)

Weight ≤4.7 lbs (2.14 Kgs) ≤ 3.4 lbs (1.53 kg.) ≤2.3 lbs (1.06 kg.)

Number of fixed ports 24 × 10/100Base-TX

Number of
management port

43.6 × 440 × 160 mm
(1.7 × 17.3 × 6.3 in.)

autosensing Ethernet
ports

2 × 100/1000 Mbps
Combo ports

1 × Console port

43.6 × 360 × 160 mm
(1.7 × 14.2 × 6.3 in.)

16 × 10/100Base-TX
autosensing Ethernet
ports

2 × 100/1000 Mbps
Combo ports

43.6 × 230 × 160 mm
(1.7 × 9.1 × 6.3 in.)

8 × 10/100Base-TX
autosensing Ethernet
ports

1 × 100/1000 Mbps
Combo port

18 CHAPTER 1: PRODUCT INTRODUCTION

Table 10 Technical specifications for the Switch 4210

Model Switch 4210 26-port Switch 4210 18-port Switch 4210 9-port

Power system AC input:

PoE (to power attachd
deices)

System power
consumption (full
load)

Fan None None None

Operating
temperature

Relative humidity
(non-condensing)

■ Rated voltage range: 100 VAC to 240 VAC, 50 Hz/60 Hz

■ Input voltage range: 90 VAC to 264 VAC, 47 Hz to 63 Hz

Not supported Not supported Not supported

14W 12W 10W

0°C to 45°C (30°F to 113°F)

10% to 90%

3Com Switch 4210

Family PWR

Table 11 provides the technical specifications for the Switch 4210 PWR models.

Table 11 Technical specifications for the Switch 4210 PWR models

Model

Physical dimensions (H × W
× D)

26-port PWR

H 1.7 in 45 mm

W 17.3 in 440 mm

D 16.9 in 430 mm

Weight 6.0 lbs

2.70 Kgs

Number of fixed ports 24 × 10/100BASE-TX

autosensing Ethernet
ports

2 × 100/1000 Mbps
Combo ports

Switch 4210

Number of management

1 × Console port

ports

Power system Switch 4210s 26-port PWR support AC input and DC input.

Switch 4210 18-port PWR/Switch 4210s 9-port PWR support only
AC input.

AC input:

■ Rated voltage range: 100 VAC to 240 VAC, 50 Hz/60 Hz

■ Input voltage range: 90 VAC to 264 VAC, 47 Hz to 63 Hz

DC input:

■ Rated voltage range: -52 VDC to -56 VDC

All ports
serve as PoE
ports

System
power
consumptio

AC input: 465 W

DC input: 400 W

n (full load)

PoE power

15.4 W × 24 15.4 W × 8 15.4 W × 4

maximum

Number of fans 4 2 2

Switch 4210
18-port PWR

H 1.7 in 45 mm

W 11.8 in 300 mm

D 9.2 in 233 mm

4.9 lbs

2.22 Kgs

16 ×
10/100BASE-TX
autosensing
Ethernet ports

2 × 100/1000 Mbps

Switch 4210
9-port PWR

H 1.7 in 45 mm

W 11.8 in 300 mm

D 10.8 in 275 mm

13.4 lbs

6.09 Kgs

8 × 10/100BASE-TX
autosensing
Ethernet ports

1 × 100/1000 Mbps
Combo port

Combo ports

160 W 95 W

SFP Modules Supported for the Switch 4210 19

Table 11 Technical specifications for the Switch 4210 PWR models

SFP Modules Supported for the Switch 4210

n

Switch 4210

Model

Operating temperature 0°C to 45°C (30°F to 113°F)

Relative humidity
(non-condensing)

26-port PWR

10% to 90%

Switch 4210
18-port PWR

Switch 4210
9-port PWR

The Switch 4210 26-port, 18-port, and 9-port PWR models provide an
over-temperature protection mechanism. When the internal temperature exceeds
65°C (149
is below 60°C (140

°F), they will stop providing power from all ports. When the temperature

°F), they will continue to provide power from all ports.

The Switch 4210’s front panel provides one or two 1000 Mbps SFP ports in which
you can plug small form-factor (SFP) modules, which are described in Table 12.

Table 12 SFP modules supported by the Switch 4210s

Type

100 Mbps SFP module

1000 Mbps SFP module

100 Mbps bidirectional (BIDI) module

1000 Mbps BIDI module

SFP stack module SFP-STACK-Kit

Model

■ 3CSFP81

■ 3CSFP82

■ 3CSFP91

■ 3CSFP92

■ 3CSFP97

■ 3CSFP9-81

■ 3CSFP9-82

■ 3CSFP85

■ 3CSFP86

n

■ The types of SFP modules may vary over time. Consult 3Com marketing

personnel or technical support personnel to obtain the latest information about
SFP modules.

■ For the SFP module specifications, refer to 3Com Transceiver Data Sheet.

20 CHAPTER 1: PRODUCT INTRODUCTION

2

INSTALLING THE SWITCH

This section contains information that you need to install and set up your 3Com®
switch.

WARNING: Safety Information. Before you install or remove any components
from the Switch or carry out any maintenance procedures, you must read the
3Com Switch Family Safety and Regulatory Information document enclosed.

AVERTISSEMENT: Consignes de securite. Avant d'installer ou d'enlever tout
composant de Switch ou d'entamer une procedure de maintenance, lisez les
informations relatives a la securite qui se trouvent dans 3Com Switch Family Safety
and Regulatory Information.

VORSICHT: Sicherheitsinformationen. Bevor Sie Komponenten aus dem Switch
entfernen oder den Switch hinzufugen oder Instandhaltungsarbeiten verrichten,
lesen Sie die 3Com Switch Family Safety and Regulatory Information.

ADVERTENCIA: Informacion de seguridad. Antes de instalar o extraer
cualquier componente del Switch o de realizar tareas de mantenimiento, debe leer
la informacion de seguridad facilitada en el 3Com Switch Family Safety and
Regulatory Information.

AVVERTENZA: Informazioni di sicurezza. Prima di installare o rimuovere
qualsiasi componente dal Switch o di eseguire qualsiasi procedura di
manutenzione, leggere le informazioni di sicurezza riportate 3Com Switch Family
Safety and Regulatory Information.

OSTRZEŻENIE: Informacje o zabezpieczeniach. Przed instalacją lub
usunięciem jakichkolwiek elementów z product lub przeprowadzeniem prac
konserwacyjnych należy zapoznać się z informacjami o bezpieczeństwie
zawartymi w 3Com Switch Family Safety and Regulatory Information.

CAUTION: Opening the switch or tampering with the warranty sticker can void
your warranty.

22 CHAPTER 2: INSTALLING THE SWITCH

Front
bracket

Screw

Front
bracket

Screw

Rack-Mounting the Switch

Switch 4210 26-Port models are rack-mountable in a standard 19-inch rack.
Switch 4210 9- and 18-Port models are not as wide as the 19-inch model and are
intended for desktop or shelf installation.

Follow the steps below to mount a 26-Port model unit in a standard 19-inch rack:

1 Check that the rack is sturdy and properly grounded. Attach the rack-mount

brackets to the front or rear panel of the chassis with screws.

2 Place the switch on a shelf in the rack and slide it to a proper position along the

guide rails, reserving a suitable clearance between the device and the guide rails.

3 Fix the brackets to the rack posts with screws, making sure that the device is

securely attached.

Figure 16 Installing the switch in a 19-inch rack

Mounting the front

bracket

Mount the front bracket as shown in Figure 17 and Figure 18.

Figure 17 Mount the front bracket to the device

Rack-Mounting the Switch 23

Screw

Front mount angle

Front
bracket

Screw

Front mount angle

Front
bracket

Three positions for screw mountingThree positions for screw mounting

Figure 18 Mount the front bracket to the mount angel of the rack

Mounting the rear

bracket

The Switch 4210 26-Port does not need rear brackets. The description for
mounting rear brackets is only for the Switch 4210 PWR 24-Port.

Mount a screw on the back of the switch to closely connect the switch with the
rear bracket to support the switch. There are three positions for screw mounting
as shown in Figure 19.

Figure 19 Positions for screw mounting on the switch

Follow the steps below to mount the rear bracket:

1 Use screws to fix the rear bracket to the rear mount angle.

2 Determine the position for screw mounting on the switch according to the

position of the mount angle.

3 Mount the screw to the switch and make sure the screw and the rear bracket are

closely connected.

24 CHAPTER 2: INSTALLING THE SWITCH

Screw 1

Screw 2

Rear bracket

Rear mount
angle

Screw 1

Screw 2

Rear bracket

Rear mount
angle

Screw 2

Screw 1

Rear mount angle

Rear bracket

Screw 2

Screw 1

Rear mount angle

Rear bracket

Figure 20 Installation completed 1

Screw 1: Fix the rear bracket to the mount
angle.

Figure 21 Installation completed 2

Screw 1: Fix the rear bracket to the mount
angle.

Screw 2 is mounted to the switch.

Screw 2 is mounted to the switch.

Mounting the Switch on a Desktop

In many cases, standard 19-inch racks are not available. Therefore, switches are
often placed on a desktop. To place your switch on a desktop, you simply need to:

■ Make sure that the surface is clean, flat, and sturdy.

■ Makes sure that the environment is well ventilated and allow 10 cm (3.9 in.) of

space around the chassis for heat dissipation.

■ Do not place heavy objects on your switch.

■ When stacking, the vertical distance between two switches must be at least 1.5

cm (0.59 in).