3Com Switch 3CR16708 91 User Manual

®
OfficeConnect Managed  
Switch 9 and Switch 9 FX  
Getting Started Guide  
3CR16708-91  
3CR16709-91  
Part No. DUA1670-8AAA01  
Published March 2005  
 
 
ABOUT THIS GUIDE  
This guide provides all the information you need to install and use the  
following switches in their default state.  
OfficeConnect Managed Switch 9 (3CR16708-91)  
OfficeConnect Managed Switch 9 FX (3CR16709-91)  
All procedures described in this guide apply to both models except where  
stated. Where a procedure or description applies to both the Switch 9  
and the Switch 9 FX, the term Switch is used.  
The guide is intended for use by network administrators who are  
responsible for installing and setting up network equipment;  
consequently, it assumes a basic working knowledge of LANs (Local Area  
Networks).  
Before You Start  
This section contains information about the CD-ROM that accompanies  
your Switch.  
About Your CD-ROM The CD-ROM also contains the following:  
Online documentation for the Switch — refer to Related  
Documentation on page 9 for details.  
3Com Network Supervisor — a powerful and easy-to-use network  
management platform.  
A number of other useful applications.  
Most user guides and release notes are available in Adobe Acrobat  
Reader Portable Document Format (PDF) or HTML on the 3Com  
World Wide Web site:  
 
     
8
ABOUT THIS GUIDE  
Conventions  
Table 1 and Table 2 list conventions that are used throughout this guide.  
Table 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  
Table 2 Text Conventions  
Convention Description  
Screen displays This typeface represents information as it appears on the  
screen.  
<syntax>  
The word “syntax” means that you must evaluate the syntax  
provided and then supply the appropriate values for the  
placeholders that appear in angle brackets. Example:  
To change your password, use the following syntax:  
system management password <password>  
In this example, you must supply a password for <password>.  
Commands  
The word “command” means that you must enter the  
command exactly as shown and then press Return or Enter.  
Commands appear in bold. Example:  
To display port information, enter the following command:  
bridge port detail  
The words “enter”  
and “type”  
When you see the word “enter” in this guide, you must type  
something, and then press Return or Enter. Do not press  
Return or Enter when an instruction simply says “type.”  
Keyboard key names If you must press two or more keys simultaneously, the key  
names are linked with a plus sign (+). Example:  
Press Ctrl+Alt+Del  
Words in italics  
Italics are used to:  
Emphasize a point.  
Denote a new term at the place where it is defined in the  
text.  
Identify menu names, menu commands, and software  
button names. Examples:  
From the Help menu, select Contents.  
Click OK.  
 
         
Related Documentation  
9
Related  
Documentation  
In addition to this guide, each Switch documentation set includes the  
following:  
OfficeConnect Managed Switch 9 and Switch 9 FX  
Implementation 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 CD-ROM that accompanies the Switch.  
OfficeConnect Managed Switch 9 and Switch 9 FX  
Management Quick Reference Guide  
This guide contains:  
a list of the features supported by the Switch.  
a summary of the Web interface and command line interface  
commands for the Switch.  
OfficeConnect Managed Switch 9 and Switch 9 FX  
Management Interface 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 HTML format on the CD-ROM that accompanies the  
Switch.  
Release Notes  
These notes provide information about the current software release,  
including new features, modifications, and known problems.  
There are other publications you may find useful, such as:  
Documentation accompanying 3Com Network Supervisor. This is  
supplied on the CD-ROM that accompanies the Switch.  
Accessing Online To access the documentation on the CD-ROM supplied with your Switch,  
Documentation do the following:  
1 Insert the CD-ROM into your CD-ROM drive. If your PC has auto-run  
enabled, a splash screen will be displayed automatically.  
2 Select the Documentation section from the contents page.  
 
     
10  
ABOUT THIS GUIDE  
If the online documentation is to be accessed from a local drive or server,  
you will need to access the CD-ROM contents via the root directory and  
copy the files from the CD-ROM to a suitable directory.  
The HTML Reference Guide is stored in the Docs/reference  
directory on the CD-ROM. The documentation is accessed using the  
contents.htm file.  
The PDF Implementation Guide is stored in the  
Docs/implementationdirectory of the CD-ROM.  
3Com recommends that you copy the Docs/reference directory as a  
whole to maintain the structure of the files.  
Documentation  
Comments  
Your suggestions are very important to us. They will help make our  
documentation more useful to you. Please e-mail comments about this  
document to 3Com at:  
Please include the following information when commenting:  
Document title  
Document part number (on the title page)  
Page number (if appropriate)  
Example:  
OfficeConnect Managed Switch 9 and Switch 9 FX  
Getting Started Guide  
Part Number DUA1670-8AAA01  
Page 21  
Please note that we can only respond to comments and questions about  
3Com product documentation at this e-mail address. Questions related to  
technical support or sales should be directed in the first instance to your  
network supplier.  
 
 
INTRODUCING THE  
OFFICECONNECT MANAGED  
SWITCH 9 AND SWITCH 9 FX  
1
This chapter contains introductory information about the Switch 9 and  
Switch 9 FX and how they can be used in your network. It covers  
summaries of hardware and software features and also the following  
topics:  
 
   
12  
CHAPTER 1: INTRODUCING THE OFFICECONNECT MANAGED SWITCH 9 AND SWITCH 9 FX  
About the Switch  
The Switch is a 10/100 Mbps Ethernet Switch, which consists of:  
8 10BASE-T/100BASE-TX ports  
and either:  
One 10BASE-T/100BASE-TX/1000BASE-T (10/100/1000) port or  
One 100BASE-FX LC port and one SFP port  
The 100BASE-FX and SFP port is a combination port. When an SFP  
module is inserted it has priority over the 100BASE-FX port of the same  
number. The corresponding 100BASE-FX port is disabled when an SFP  
module is present.  
The Switch supports Power over Ethernet on ports 1, 2, 5 and 6. If you  
plug in a compatible (IEEE 802.3af compliant) device, it will be  
automatically detected and power supplied to it. Power over Ethernet is  
enabled on these ports by default.  
Summary of Table 3 summarizes the hardware features that are supported by the  
Hardware Features Switch.  
Table 3 Hardware features  
Feature  
Switch  
MAC Addresses  
Up to 8000 supported  
Up to 64 static entries  
Auto-negotiation  
Auto MDI/MDI-X  
Forwarding Modes  
Duplex Modes  
Supported on all ports  
Supported on all RJ-45 ports  
Store and Forward  
Half and full duplex on all ports  
Traffic Prioritization  
Supported (using the IEEE Std 802.ID, 1998 Edition):  
4 queues per port  
Power over Ethernet  
Supported on ports 1, 2, 5 and 6  
Ethernet/Fast Ethernet  
Ports  
Auto-negotiating 10BASE-T / 100BASE-TX ports  
Ethernet/Fast Ethernet/  
Gigabit Ethernet Ports  
1 auto-negotiating 10BASE-T / 100BASE-TX /  
1000BASE-T port  
SFP Port  
1 auto-negotiating SFP port on Switch 9 FX  
1 auto-negotiating 100BASE-FX port on Switch 9 FX  
Wall mounting or stand-alone mounting  
Fiber-Optic Port  
Mounting  
 
       
Switch — Front View Detail  
13  
Switch — Front  
View Detail  
Alert LED  
Power LED  
Port Status LEDS  
PoE Status LEDS  
3CR16708-91  
PoE Status  
GbE  
6
7
8
6
Duplex  
On = Delivering Power  
Link/Activity  
Blue = 1000M, Green = 100M, Yellow = 10M, Flash = Activity  
Duplex : On = Full  
OfficeConnect Managed Switch 9  
Alert  
Figure 1 Switch 9 — front view  
Module  
Active LED  
Alert LED  
Port Status LEDS  
PoE Status LEDS  
3CR16709-91  
PoE Status  
SFP  
FX  
6
7
8
6
Module Status  
Duplex  
On = Delivering Power  
Link/Activity  
Green = Link  
Flash = Activity  
Green = 100M, Yellow = 10M, Flash = Activity  
Duplex : On = Full  
OfficeConnect Managed Switch 9 FX  
Alert  
Power LED  
Combo Port Status LEDS  
Figure 2 Switch 9 FX — front view  
 
 
14  
CHAPTER 1: INTRODUCING THE OFFICECONNECT MANAGED SWITCH 9 AND SWITCH 9 FX  
LEDs Table 4 lists LEDs visible on the front of the Switch, and how to read their  
status according to color. For information on using the LEDs for problem  
Table 4 LED behavior  
LED  
Color  
Indicates  
10BASE-T/100BASE-TX Port Status LEDs  
Link/  
Activity  
Green  
A 100 Mbps link is present.  
A 10 Mbps link is present.  
Yellow  
Green flashing There is 100 Mbps activity on the port.  
Yellow flashing There is 10 Mbps activity on the port.  
Off  
No link is present.  
Duplex Green  
Off  
The port is operating at full duplex  
The port is operating at half duplex, or there is no link.  
10BASE-T/100BASE-TX/1000BASE-T (GbE) Port Status LED (Switch 9 only)  
Link/  
Activity  
Blue  
A 1000 Mbps link is present.  
A 100 Mbps link is present.  
Green  
Yellow  
A 10 Mbps link is present.  
Blue flashing  
There is 1000 Mbps activity on the port.  
Green flashing There is 100 Mbps activity on the port.  
Yellow flashing There is 10 Mbps activity on the port.  
Off  
No link is present.  
Duplex Green  
Off  
The port is operating at full duplex  
The port is operating at half duplex, or there is no link.  
SFP Module Status LED (Switch 9 FX only)  
Link/  
Green  
The port has a link.  
Activity  
Green flashing There is activity on the port.  
Off  
No link is present.  
Module Green  
Status  
The SFP Module is present.  
The corresponding 100BASE-FX port is disabled.  
Off  
No SFP Module has been inserted.  
The corresponding 100BASE-FX port can be used.  
100BASE-FX Port Status LEDs (Switch 9 FX only)  
Link/  
Activity  
Green  
Green Flashing There is activity on the port.  
Off No link is present.  
The port has a link.  
 
     
Switch — Front View Detail  
15  
LED  
Color  
Indicates  
PoE Status LED (Ports 1, 2, 5, 6)  
Green  
Off  
Power is being delivered to the attached device.  
No power is being delivered to the attached device, or no  
device is attached to this port.  
Power LED  
Green  
Off  
The Switch is powered-up and operating normally.  
The Switch is not receiving power or there is a fault with  
the Power Supply Unit.  
Power OK LED (rear panel)  
Green  
Off  
The power adapter is providing power normally.  
The power adapter has probably failed (see Chapter 4,  
Alert LED  
Orange flashing The Switch is starting up or the Switch software is being  
upgraded.  
Orange  
The Switch is reporting a fault (see Chapter 4, “Problem  
Solving”), or a user-configured alert condition has occurred  
(see the Implementation Guide for information on  
configuring alert conditions).  
Off  
The Switch is powered-up and operating normally (if the  
Power LED is on).  
 
16  
CHAPTER 1: INTRODUCING THE OFFICECONNECT MANAGED SWITCH 9 AND SWITCH 9 FX  
Switch — Rear  
View Detail  
Power Socket  
Console Port  
1000BASE-T Port 10BASE-T/100BASE-TX Ports  
Power LED  
12VDC  
3.5A MAX  
Figure 3 Switch 9 — rear view  
Power Socket  
Console Port  
100BASE-FX Port  
SFP Port  
10BASE-T/100BASE-TX Ports  
Power LED  
12VDC  
3.5A MAX  
Figure 4 Switch 9 FX — rear view  
WARNING: RJ-45 Ports. These are shielded RJ-45 data sockets. They cannot  
be used as standard traditional telephone sockets, or to connect the unit to a  
traditional PBX or public telephone network. Only connect RJ-45 data  
connectors, network telephony systems, or network telephones to these  
sockets.  
Either shielded or unshielded data cables with shielded or unshielded  
jacks can be connected to these data sockets.  
 
 
Switch — Rear View Detail  
17  
10BASE-T/ The Switch has 8 auto-negotiating 10BASE-T/100BASE-TX ports  
100BASE-TX Ports configured as Auto MDI/MDI-X. These ports automatically provide the  
appropriate connection. The default state for 10/100 Mbps ports is  
auto-negotiation enabled, where the speed, duplex and flow control  
modes are negotiated.  
Alternatively, you can manually set these ports to 10BASE-T half duplex,  
10BASE-T full duplex, 100BASE-TX half duplex, 100BASE-TX full duplex  
and manually enable or disable flow control. The maximum segment  
length is 100 m (328 ft) over Category 5 twisted pair cable.  
If you disable auto-negotiation, Auto MDI/MDI-X will also be disabled.  
The Switch will supply up to 15.4W of power through ports 1, 2, 5 and 6  
in conformance to the 802.3af specification. The Switch incorporates a  
PoE Status LED on the front panel, which indicates when power is being  
delivered to a device connected to one of these ports.  
10BASE-T/ The Switch 9 has one auto-negotiating  
100BASE-TX/ 10BASE-T/100BASE-TX/1000BASE-T port configured as Auto MDI/MDI-X.  
1000BASE-T Port This port automatically provides the appropriate connection. The default  
state for the 10/100/1000 Mbps port is auto-negotiation enabled, where  
the speed, duplex and flow control modes are negotiated.  
Alternatively, you can manually set these ports to 10BASE-T half duplex,  
10BASE-T full duplex, 100BASE-TX half duplex, 100BASE-TX full duplex  
or 1000BASE-T full duplex and manually enable or disable flow control.  
The maximum segment length is 100 m (328 ft) over Category 5 twisted  
pair cable.  
If you disable auto-negotiation, Auto MDI/MDI-X will also be disabled.  
SFP Port The Switch 9 FX has one SFP (Small Form Factor Pluggable) port that  
supports Gigabit Ethernet short-wave (SX) or long-wave (LX) fiber-optic  
SFP transceivers, or Gigabit Ethernet 1000BASE-TX SFP transceivers. This  
offers you the flexibility of using SFP transceivers to provide connectivity  
between the Switch and a 1000 Mbps core network or to create a high  
capacity aggregated link between two workgroups.  
When using fiber-optic SFP transceivers, the only state for this port is  
auto-negotiation enabled. As the speed and duplex modes are fixed by  
the media type, only the flow control is negotiated with the link partner.  
 
     
18  
CHAPTER 1: INTRODUCING THE OFFICECONNECT MANAGED SWITCH 9 AND SWITCH 9 FX  
When an SFP module is inserted it has priority over the 100BASE-FX port.  
The corresponding 100BASE-FX port is disabled when an SFP module is  
present.  
100BASE-FX Port The Switch 9 FX has one 100BASE-FX LC port. This is a 100 Mbps  
fiber-optic port that can use standard multi-mode fiber-optic cable of up  
to 2 kilometers (1.2 miles). It uses the standard duplex LC connector that  
allows both the transmit and the receive fibers to be connected in the  
same space as an RJ-45 port.  
When an SFP module is inserted it has priority over the 100BASE-FX port.  
The corresponding 100BASE-FX port is disabled when an SFP module is  
present.  
Console Port The console port allows you to connect a terminal and perform local  
out-of-band management. The console port uses an RJ-45 to DB-9 null  
modem cable (supplied with the Switch) and is set to 19200 baud, 8 data  
bits, no parity and 1 stop bit.  
The default configuration automatically detects any of the following baud  
rates: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200.  
However, you must set the baud rate on your management device to  
19200 baud if you want to view all the system initialization messages.  
Power Socket The power adapter supplied with the Switch automatically adjusts its  
power setting to any supply voltage in the range 100-240 VAC. Only use  
the adapter provided with the Switch.  
 
           
Default Settings  
19  
Default Settings  
Table 5 shows the default settings for the Switch:  
Table 5 Default Settings  
Feature  
Switch  
IP Configuration  
Port Status  
Port Speed  
Automatic by DHCP client  
Enabled  
10BASE-T/100BASE-TX ports are  
auto-negotiated  
10BASE-T/100BASE-TX/1000BASE-T port is  
auto-negotiated  
100BASE-FX port is fixed at 100 Mbps  
Duplex Mode  
10BASE-T/100BASE-TX port is auto-negotiated  
10BASE-T/100BASE-TX/1000BASE-T port is  
auto-negotiated (half duplex or full duplex at  
10/100 Mbps, full duplex only at 1000 Mbps)  
100BASE-FX port defaults to 100 Mbps  
full-duplex mode (100 FD) and must be  
manually set to half-duplex mode (100 HD) if  
required.  
Power over Ethernet  
Flow Control  
Enabled (ports 1, 2,5 and 6)  
Disabled in half duplex 10/100 ports  
Auto-negotiated in full duplex 10/100 ports  
Disabled for 10/100/1000 port  
Broadcast Storm Control  
Virtual LANs (VLANs)  
Enabled  
All ports belong to the untagged Default VLAN  
(VLAN 1) with IEEE Std 802.1Q-1998 learning  
operational  
Multicast Filtering  
IGMP Filtering enabled  
Rapid Spanning Tree Protocol Enabled  
Spanning Tree Fast Start  
Disabled on 10/100 ports  
Disabled on 10/100/1000 port  
Traffic Prioritization  
Port Security  
All ports prioritize NBX VoIP traffic (LAN and IP).  
All ports set to “best effort” for all other traffic.  
Disabled per port  
 
     
20  
CHAPTER 1: INTRODUCING THE OFFICECONNECT MANAGED SWITCH 9 AND SWITCH 9 FX  
If you initialize a Switch unit by selecting System > Control > Initialize in  
the Web interface or by entering system control initialize in  
the Command Line Interface, the following settings are retained to allow  
you to connect to and manage the Switch:  
IP Address  
Subnet Mask  
Default Gateway  
 
INSTALLING THE SWITCH  
2
This chapter contains the information you need to install and set up the  
Switch. It covers the following topics:  
WARNING: Safety Information. Before installing or removing any  
components from the Switch or carrying out any maintenance  
procedures, you must read the safety information provided in Appendix A  
of this guide.  
AVERTISSEMENT: Consignes de sécurité. Avant d'installer ou d'enlever  
tout composant du Switch ou d'entamer une procédure de maintenance,  
lisez les informations relatives à la sécurité qui se trouvent dans  
l'Appendice A (Appendix A) de ce guide.  
VORSICHT: Sicherheitsinformationen. Bevor Sie Komponenten aus  
dem Switch entfernen oder dem Switch hinzufuegen oder  
Instandhaltungsarbeiten verrichten, lesen Sie die Sicherheitsanweisungen,  
die in Anhang A (Appendix A) in diesem Handbuch aufgefuehrt sind.  
ADVERTENCIA: Información de seguridad. Antes de instalar o extraer  
cualquier componente del product o de realizar tareas de mantenimiento,  
debe leer la información de seguridad facilitada en el Apéndice A de esta  
guía del usuario.  
AVVERTENZA: Informazioni di sicurezza. Prima di installare o  
rimuovere qualsiasi componente dal product o di eseguire qualsiasi  
 
     
22  
CHAPTER 2: INSTALLING THE SWITCH  
procedura di manutenzione, leggere le informazioni di sicurezza riportate  
nell'Appendice A della presente guida per l'utente.  
Package Contents  
Switch unit  
CD-ROM  
Getting Started Guide (this guide)  
Management Quick Reference Guide  
Release Notes  
Warranty Information  
Power Adapter  
Console Cable (RJ-45 to RS-232)  
Stacking Clip  
4 x Rubber feet  
Choosing a Suitable  
Site  
The Switch is suited for use on a desktop, either free standing, stacked  
together with other units using the stacking clip, or mounted on a wall.  
Alternatively, the Switch can be placed in a wiring closet or equipment  
room, as an aggregator for other Hubs and Switches. A stacking kit  
containing one mounting clip is supplied with the Switch.  
CAUTION: Ensure that the ventilation holes are not obstructed.  
When deciding where to position the Switch, ensure that:  
Cabling is located away from:  
sources of electrical noise such as radios, transmitters and  
broadband amplifiers.  
power lines and fluorescent lighting fixtures  
The Switch is accessible and cables can be connected easily.  
Water or moisture cannot enter the case of the Switch.  
Air flow is not restricted around the Switch or through the vents in the  
side of the Switch. 3Com recommends that you provide a minimum of  
25mm (1in.) clearance.  
 
     
Placing Units On Top of Each Other  
23  
Air temperature around the Switch does not exceed 50 °C (122 °F).  
If the Switch is stacked with other OfficeConnect units its local air  
temperature may be greater than room ambient temperature.  
The air is as free from dust as possible.  
The unit is installed in a clean, air conditioned environment.  
No more than four Switch units are placed on top of one another, if  
the units are free-standing or stacked together with the stacking clip.  
The Switch is situated away from sources of conductive (electrical)  
dust, for example laser printers.  
The AC supply used by the Switch is separate to that used by units  
that generate high levels of AC noise, for example air conditioning  
units and laser printers.  
Placing Units On  
Top of Each Other  
If the Switch units are free-standing or stacked together with the stacking  
clip, up to four units can be placed one on top of the other. If you are  
mixing a variety of OfficeConnect Switch and Hub units, the smaller units  
must be positioned at the top.  
If you are placing free-standing Switch units one on top of the other, you  
must use the supplied self-adhesive rubber pads to prevent the Switch  
from moving around on your desk, or when stacking with flat top  
OfficeConnect units. Apply the pads to the underside of each Switch,  
sticking one in the marked area at each corner.  
Using a Stacking  
Clip  
Use a stacking clip when stacking your Switch with other curved  
OfficeConnect units. The stacking clip allows you to stack units neatly  
and securely.  
CAUTION: You can stack up to a maximum of four units. Smaller units  
must be stacked above larger units.  
To fit the clip:  
1 Fit the clip across the top of the unit, as shown in Figure 5 (picture 1).  
2 Align the fastening pieces over the slots found on each side of the unit.  
3 Push the clip down gently to secure it, ensuring that the fastening pieces  
snap into the slots on the unit.  
 
     
24  
CHAPTER 2: INSTALLING THE SWITCH  
To fit another unit:  
1 Rest the second unit on the top of the clip and align it with the front of  
the unit below.  
2 Press down gently on the unit to secure in onto the clip, ensuring the  
fastening pieces fit into the slots on the unit below, as shown in Figure 5  
(picture 2).  
Figure 5 Stacking Your Units together  
1
2
Fastening  
Piece  
Fastening  
Piece  
Wall-mounting  
There are two slots on the underside of the Switch that can be used for  
wall mounting. The Switch must be mounted with the LEDs facing  
upwards.  
When wall mounting the unit, ensure it is within reach of the power  
outlet.  
When wall mounting the unit, ensure that the rubber feet are not fixed.  
Mounting To wall mount the unit on a cement wall, follow these instructions:  
Instructions for  
Cement Walls  
1 Make two holes 150 mm (5.9 in.) apart and insert two nylon or similar  
screw anchors that are suitable for the wall construction.  
2 Fix two suitable screws into the anchors, leaving their heads 3 mm  
(0.12 in.) clear of the wall surface. The screws should be at least 30 mm  
(1.2 in.) long.  
3 Remove any connections from the Switch and locate it over the screw  
heads. When in line, gently push the Switch on to the wall and move  
downwards to secure.  
 
       
The Power-up Sequence  
25  
Mounting To wall mount the unit on a wood wall, follow these instructions:  
Instructions for Wood  
Walls  
1 Make two holes 150 mm (5.9 in.) apart.  
2 Fix two suitable screws directly into the wall, leaving their heads 3 mm  
(0.12 in.) clear of the wall surface. The screws should be at least 20 mm  
(0.75 in.) long.  
3 Remove any connections from the Switch and locate it over the screw  
heads. When in line, gently push the Switch on to the wall and move  
downwards to secure.  
CAUTION: When making connections, be careful not to push the Switch  
up and off the wall.  
CAUTION: Only wall mount single units, do not wall mount stacked  
units.  
The Power-up  
Sequence  
The following sections describe how to get your Switch powered-up and  
ready for operation.  
Powering-up the Use the following sequence of steps to power-up the Switch.  
Switch  
1 Plug the power adapter into the power socket at the rear of the Switch.  
2 Plug the other end of the power cord into your power outlet.  
3 The Alert LED will flash orange while the Switch is starting up.  
4 When the unit is ready, the Power LED lights green and the Alert LED is  
off.  
The Switch powers-up and runs through its Power On Self Test (POST),  
which takes approximately 60 seconds.  
 
       
26  
CHAPTER 2: INSTALLING THE SWITCH  
Checking for Correct During the Power On Self Test, all ports on the Switch are disabled. When  
Operation of LEDs the POST has completed, check the Power and Alert LEDs to make sure  
that your Switch is operating correctly. Table 6 shows possible colors for  
these LEDs.  
Table 6 Power and Alert LED colors  
LED  
Color  
State  
Power  
Green  
The Switch is powered-up and operating  
normally.  
Off  
The Switch is not receiving power or there is  
a fault with the Power Supply Unit.  
Alert  
Orange flashing  
Orange  
The Switch is starting up or the Switch  
software is being upgraded.  
The Switch is reporting a fault (see  
Off  
Normal operation.  
If there is evidence of a problem, see “Solving Problems Indicated by  
CAUTION The Switch has no ON/OFF switch; the only method of  
connecting or disconnecting mains power is by connecting or  
disconnecting the power adapter.  
Using Power over The Switch can power any IEEE 802.3af compliant device through rear  
Ethernet panel ports 1, 2, 5 and 6. The Switch will support the following 3Com  
802.3af equipment:  
Wireless:  
3Com 11 Mbps Wireless LAN Access Point 8000 (3CRWE80096B)  
3Com 11 Mbps Wireless LAN Access Point 8200 (3CRWE820096A)  
3Com 11 Mbps Wireless LAN Access Point 8500 (3CRWE850096A)  
3Com 11 Mbps Wireless LAN Access Point 8700 (3CRWE870096A)  
3Com Wireless LAN Building to Building Bridge (3CRWE91096B)  
Voice Over IP Telephones:  
3Com 11 Mbps Wireless LAN Access Point 8000 (3CRWE80096B)  
3Com 11 Mbps Wireless LAN Access Point 8200 (3CRWE820096A)  
3Com 11 Mbps Wireless LAN Access Point 8500 (3CRWE850096A)  
 
       
The Power-up Sequence  
27  
3Com 11 Mbps Wireless LAN Access Point 8700 (3CRWE870096A)  
3Com Wireless LAN Building to Building Bridge (3CRWE91096B)  
The following 3Com NBX phones are also supported using the 3Com  
NBX VoIP Phone Module (3CNJVOIPMOD-NBX):  
3Com NBX 1102 Business Phone (3C10121)  
3Com NBX 1102B Business Phone (3C10281B)  
3Com NBX 1102PE Business Phone (3C10281PE)  
3Com NBX 2101Basic Phone (3C10248B)  
3Com NBX 2101PE Basic Phone (3C10248PE)  
3Com NBX 2102 Business Phone (3C10226A)  
3Com NBX 2102IR Business Phone with IR (3C10228IRA)  
3Com NBX 2102B Business Phone (3C10226B)  
3Com NBX 2102IRB Business Phone with IR (3C10228IRB)  
3Com NBX 2102PE Business Phone (3C10226PE)  
3Com NBX 2102PEIR Business Phone with IR (3C10228RPE)  
3Com NBX 3102 Business Phone (3C10402A)  
3Com NBX ATA Business Phone (3C10400)  
Network Jacks:  
3Com NJ90 (3CNJ90)  
3Com NJ95 (3CNJ95  
3Com NJ100 (3CNJ100, 3CNJ100-CRM)  
3Com NJ105 - 3CNJ105  
3Com NJ105 + forwarding (3CNJ105)  
3Com NJ200 (3CNJ200, 3CNJ200-CRM)  
3Com NJ200 + forwarding (3CNJ200)  
3Com NJ205 (3CNJ205)  
3Com NJ205 + forwarding (3CNJ205)  
For the latest list of supported devices, go to the product page on the  
3Com web site http://www.3com.com/.  
 
28  
CHAPTER 2: INSTALLING THE SWITCH  
For further information about Power Over Ethernet, refer to “Power  
Management and Control” in the Switch Implementation Guide supplied  
on the CD-ROM that accompanies your Switch. Power over Ethernet  
management is available using the web interface or the command line  
interface (CLI).  
Choosing the Correct All of the RJ-45 ports on the Switch are Auto-MDIX, that is they have a  
RJ-45 Cables cross-over capability. The port can automatically detect whether it needs  
to operate in MDI or MDIX mode. Therefore you can make a connection  
to a port with a straight-through (MDI) or a cross-over cable (MDIX).  
The Auto-MDIX feature only operates when auto-negotiation is enabled.  
If auto-negotiation is disabled, all the Switch ports are configured as  
MDIX (cross-over). If you want to make a connection to another MDIX  
port, you need a cross-over cable. Many ports on workstations and  
servers are configured as MDI (straight-through). If you want to make a  
connection to an MDI port, you need to use a standard straight-through  
cable. See Table 7.  
WARNING: The Switch supports Power over Ethernet on rear ports 1, 2,  
5 and 6. These ports should only be used for Ethernet wiring within the  
same building. The SFP and 100BASE-FX ports of the Switch 9 FX can be  
used for Ethernet wiring between buildings.  
3Com recommends that you use Category 5e twisted pair cable — the  
maximum segment length for this type of cable is 100 m (328 ft).  
Table 7 Cables required to connect the Switch to other devices if  
auto-negotiation is disabled  
Cross-over Cable  
Straight-through Cable  
Switch to Switch  
(MDIX to MDIX)  
Switch to Hub  
(MDIX to MDIX)  
Switch to PC (NIC)  
(MDIX to MDI)  
CAUTION: If you want to install the Switch using a Category 5e or  
Category 6 cable, 3Com recommends that you briefly connect the cable  
 
       
SFP Operation  
29  
to a grounded port before connecting network equipment. If you do not,  
the cable’s Electrostatic Discharge (ESD) may damage the Switch’s port.  
You can create a grounded port by connecting all wires at one end of a  
UTP cable to an earth ground point, and the other end to a female RJ-45  
connector located, for example, on a Switch rack or patch panel. The  
RJ-45 connector is now a grounded port.  
SFP Operation  
The following section describes the use of an SFP transceiver in your  
Switch.  
SFP transceivers are hot-insertable and hot-swappable. You can remove  
them from and insert them into any SFP port without having to power  
down the Switch.  
Approved SFP The following list of approved SFP transceivers is correct at the time of  
Transceivers publication.  
3CSFP91 SFP (1000BASE-SX)  
3CSFP92 SFP (1000BASE-LX)  
3CSFP93 SFP (1000BASE-T)  
To access the latest list of approved SFP transceivers for the Switch on the  
3Com Corporation World Wide Web site, enter this URL into your  
internet browser:  
Inserting an SFP To be recognized as valid, the SFP transceiver must have the following  
Transceiver characteristics:  
1000BASE-SX or 1000BASE-LX media type:  
1000BASE-SX SFP transceiver  
Use this transceiver to connect the Switch directly to a multimode  
fiber-optic cable with fiber LC connectors.  
1000BASE-LX SFP transceiver  
Use this transceiver to connect the Switch directly to a single-mode  
fiber-optic cable or to multimode fiber using a conditioned launch  
cable with fiber LC connectors.  
 
     
30  
CHAPTER 2: INSTALLING THE SWITCH  
1000BASE-TX media type:  
Use this transceiver to connect the Switch directly to a Category 5e  
twisted-pair cable with RJ-45 connectors.  
If the SFP transceiver is faulty, it will not operate within the Switch. See  
Use of non-3Com SFPs is not recommended. If the SFP transceiver is  
invalid it will not be recognized by the Switch.  
Use the following sequence of steps to activate the SFP ports:  
1 Hold the transceiver so that the (1000BASE-TX) RJ-45 connector or  
(1000BASE-SX/LX) fiber connector is toward you and the product label is  
visible, as shown in Figure 6. Ensure the wire release lever is closed (in the  
upright position).  
2 Gently slide the transceiver into the SFP port until it clicks into place.  
CAUTION: SFP transceivers are keyed and can be properly inserted only  
one way. If the transceiver does not click when you insert it, remove it,  
turn it over, and reinsert it.  
3 Remove the plastic protective cover if fitted.  
4 Connect the twisted-pair or fiber cable.  
 
SFP Operation  
31  
Figure 6 Inserting a SFP Transceiver  
12VDC  
3.5A  
MAX  
Product  
label  
Wire release  
lever  
Suitable slot  
on Switch 9 FX  
5 The 1000BASE-SX or 1000BASE-LX fiber transceiver connects to the  
network using a duplex LC connector. The 1000BASE-TX transceiver  
connects to the network using an RJ-45 connector. If you are using a fiber  
transceiver, attach a male duplex LC connector on the network cable into  
the duplex LC connector on the transceiver. If using a 1000BASE-TX  
transceiver, attach an RJ-45 connector on the network cable into the  
RJ-45 connector on the transceiver.  
6 Connect the other end of the cable to a device fitted with an appropriate  
Gigabit Ethernet connection.  
7 Check the Module Status LED on the front of the Switch to ensure that it  
is operating correctly. Refer to “LEDs” on page 14 for more information.  
Removing an SFP If you wish to remove a 3Com transceiver (it is not necessary to  
Transceiver power-down your Switch):  
1 Disconnect the cable from the transceiver.  
2 Move the wire release lever downwards until it is pointing toward you.  
3 Pull the wire release lever toward you to release the catch mechanism;  
the transceiver will then easily slide out.  
 
   
32  
CHAPTER 2: INSTALLING THE SWITCH  
The above procedure will release a 3Com SFP transceiver. To release a  
transceiver from another manufacturer see the documentation supplied  
with your SFP transceiver.  
 
SETTING UP FOR MANAGEMENT  
3
Your Switch can operate in its default state, that is, you can install it and  
it will work straight away (plug-and-play). However, to make full use of  
the features offered by the Switch, and to change and monitor the way it  
works, you have to access the management software that resides on the  
Switch. This is known as managing the Switch.  
Managing the Switch can help you to improve the efficiency of the  
Switch and therefore the overall performance of your network.  
This chapter explains the initial set up of the Switch and the different  
methods of accessing the management software to manage a Switch. It  
covers the following topics:  
 
       
34  
CHAPTER 3: SETTING UP FOR MANAGEMENT  
Setting Up  
Overview  
This section gives an overview of what you need to do to get your Switch  
set up and ready for management when it is in its default state. The  
whole setup process is summarized in Figure 7. Detailed procedural steps  
are contained in the sections that follow. In brief, you need to:  
Configure IP information manually for your Switch or view the  
automatically configured IP information  
Prepare for your chosen method of management  
Figure 7 Initial Switch Setup and Management Flow diagram  
Power Up the Switch.  
IP Information is automatically configured.  
Do you want to manually  
configure the IP information?  
No  
Yes  
How do you want to view the automatically  
configured IP information?  
How do you want to connect to the Switch?  
Connect to a rear  
network port and use the  
Web Interface or  
Command Line Interface.  
Connect to the console  
Use 3Com Network  
Supervisor (3NS).  
Connect to the console  
port and use the  
Command Line  
Interface.  
port and use the  
Command Line  
Interface.  
How do you want to manage your Switch? See page 43  
SNMP  
Command Line Interface  
Web Interface  
Connect via the  
console port.  
Connect over the  
network via Telnet.  
Connect over the  
network.  
 
     
Setting Up Overview  
35  
CAUTION: To protect your Switch from unauthorized access, you must  
change all default passwords as soon as possible, even if you do not  
intend to actively manage your Switch. For more information on default  
users and changing default passwords, see “Default Users and  
IP Configuration You can use one of the following methods to allocate IP information to  
your Switch (essential if you wish to manage your Switch across the  
network).  
Manual IP Configuration  
You can choose to configure the IP information yourself. The Switch  
remembers the information that you enter until you change it again or  
set the configuration method to Automatic.  
You should use the Manual IP configuration method if:  
you do not have a DHCP server on your network, or  
you want to remove the risk of the IP address ever changing, or  
your DHCP server does not allow you to allocate static IP addresses.  
(Static IP addresses are necessary to ensure that the Switch is always  
allocated the same IP information.)  
For most installations, 3Com recommends that you configure the Switch  
IP information manually. This makes management simpler and more  
reliable as it is not dependent on a DHCP server, and eliminates the risk of  
the IP address changing.  
If you wish to manually enter IP information for your Switch, work  
Automatic IP Configuration  
By default the Switch tries to configure itself with IP information without  
requesting user intervention. It tries to obtain an IP address from a DHCP  
server on the network.  
It may take up to 5 minutes for your Switch to obtain an IP address after  
it has been powered up.  
When using automatic IP configuration it is useful if the Switch is issued  
the same IP address on each occasion, otherwise you will not know what  
the IP address is and it will be difficult to manage. Most DHCP servers  
 
     
36  
CHAPTER 3: SETTING UP FOR MANAGEMENT  
allow fixed IP addresses to be configured so that you know what IP  
address will be allocated to the Switch. Refer to the documentation that  
accompanies your DHCP server.  
For a detailed description of how automatic IP configuration operates,  
please refer to the Implementation Guide on the CD-ROM that  
accompanies your Switch or on the 3Com Web site.  
You should use the automatic IP configuration method if:  
your network uses DHCP to allocate IP information, or  
flexibility is needed. If the Switch is re-deployed onto a different  
subnet, it will automatically reconfigure itself with an appropriate IP  
address, instead of you having to manually reconfigure the Switch.  
If you use the automatic IP configuration method, you need to discover  
the automatically allocated IP information before you can begin  
Information” section on page 40.  
Preparing for Once your Switchs initial set up is complete you can set up your chosen  
Management management method as described in “Methods of Managing a Switch”  
For detailed information about the specific web interface operations and  
command line interface commands and problem solving, refer to the  
“Switch Management Interface Reference Guide” on the CD-ROM that is  
supplied with the Switch or on the 3Com Web site.  
 
   
Manually Configuring IP Information  
37  
Manually  
Configuring IP  
Information  
You can manually configure the Switch IP information in the following  
way:  
Connecting to the console port — Connect a workstation using a  
console cable to the console port of the Switch. You can then  
manually enter IP information using the command line interface (CLI).  
Connecting to the To set up your Switch manually you can make a connection to the console  
Console Port port (this example describes a local connection to the console port, rather  
than a remote one via a modem). You can do this whilst the Switch is  
offline, that is, before you connect the Switch to a network, or whilst the  
Switch is online, that is, connected to a network.  
Pre-requisites  
A workstation with terminal emulation software installed, such as  
Microsoft Hyperterminal. This software allows you to communicate  
with the Switch via the console port directly.  
Documentation supplied with the terminal emulation software.  
The RJ-45 to RS-232 cable supplied with the Switch.  
You can find the pin-out diagram for this cable in Appendix B on page 69  
.
You need to have the following so that you can manually set up the  
Switch with IP information:  
IP address  
subnet mask  
default gateway  
 
     
38  
CHAPTER 3: SETTING UP FOR MANAGEMENT  
Connecting the Workstation to the Switch  
1 Connect the workstation to the console port using a standard null  
modem cable as shown in Figure 8.  
Figure 8 Connecting a workstation to the Switch via the console port  
Switch  
Workstation  
(with terminal emulation  
software installed)  
Console Port  
Connection  
Standard Null Modem Cable  
To connect the cable:  
a Attach the RJ-45 to RS-232 cable to the console port on the Switch.  
b Connect the other end of the cable to one of the serial ports (also  
known as a COM port) on your workstation.  
c Tighten the retaining screws on the RS-232 connector to prevent it  
from being loosened.  
2 Open your terminal emulation software and configure the COM port  
settings to which you have connected the cable. The settings should be  
set to match the default settings for the Switch, which are:  
Any of the following baud rates: 1200, 2400, 4800, 9600, 19200,  
38400, 57600, 115200. (Note that the COM port must be set to  
19200 baud to view all the system initialization messages.)  
8 data bits  
no parity  
1 stop bit  
no hardware flow control  
Refer to the documentation that accompanies the terminal emulation  
software for more information.  
 
 
Manually Configuring IP Information  
39  
Setting Up the Switch with IP Information  
You are now ready to manually set up the Switch with IP information  
using the command line interface.  
1 The command line interface login sequence begins as soon as the Switch  
detects a connection to its console port.  
If the login prompt does not begin immediately, press Return a few times  
until it starts.  
If you have not logged onto the Switch before, you will be prompted to  
enter a new password. 3Com recommends that you change your  
password from its default blank setting.  
2 At the login and password prompts, enter adminas your user name and  
enter your password at the password prompt (or just press Return if you  
have not yet set a password). If you have logged on correctly, the  
top-level menu of the command line interface is displayed as shown in  
the example in Figure 9.  
Figure 9 Example top-level command line interface menu  
Menu options: -----------3Com OfficeConnect Switch 9------------------------  
bridge  
feature  
gettingStarted  
logout  
physicalInterface  
protocol  
- Administer bridge-wide parameters  
- Administer system features  
- Basic device configuration  
- Logout of the Command Line Interface  
- Administer physical interfaces  
- Administer protocols  
security  
- Administer security  
system  
trafficManagement  
- Administer system-level functions  
- Administer traffic management  
Type ? for help.  
------------------------------------- (1)------------------------------------  
Select menu option:  
3 At the Select menu option prompt you can either:  
enter the protocol ip basicConfigcommand. At the Enter  
configuration methodprompt enter manual. The screen  
prompts you to enter IP information.  
or  
enter the gettingStarted command. At the Enter  
configuration methodprompt enter manual. The screen  
prompts you to enter IP information.  
 
 
40  
CHAPTER 3: SETTING UP FOR MANAGEMENT  
4 Enter the IP address, subnet mask, and gateway IP address for the Switch.  
The screen displays a summary of the information entered.  
If using the gettingStartedcommand you will then be prompted to  
enter system information, change passwords, and then given the option  
to carry out advanced configuration.  
The initial set up of your Switch is now complete and the Switch is ready  
for you to set up your chosen management method. See “Methods of  
If you do not intend to use the command line interface via the console  
port to manage the Switch, you can disconnect the serial cable and close  
the terminal emulator software.  
Viewing  
If you allow the Switch to automatically configure its own IP information  
you need to discover and view the IP information before you can begin to  
manage the Switch. You can discover the IP information in two ways:  
Automatically  
Configured IP  
Information  
Using 3Com Network Supervisor — This application will auto-discover  
the Switch and display the automatically allocated IP information  
assigned to the Switch.  
Connecting to the Console Port — Connect a workstation to the  
console port of the Switch using the RJ-45 to RS-232 cable. You can  
then view the IP information automatically assigned to the Switch  
using the command line interface (CLI).  
Using 3Com Network You can use the 3Com Network Supervisor application provided on the  
Supervisor CD-ROM that accompanies your Switch to discover the automatically  
allocated IP information.  
1 Connect your Switch to the network.  
2 Power-up the Switch and wait for two minutes.  
3 Launch 3Com Network Supervisor and run the Auto-discovery wizard.  
3Com Network Supervisor will auto-discover the new Switch and display  
the IP information that has been automatically allocated to the Switch.  
Most DHCP servers allow static IP addresses to be configured so that you  
know what IP address the Switch will be given. Refer to the  
documentation that accompanies your DHCP server.  
 
       
Viewing Automatically Configured IP Information  
41  
Connecting to the Alternatively, you can view the automatically configured IP information  
Console Port via the command line interface (CLI) through a connection to the console  
port. (This example describes a local connection to the console port,  
rather than a remote one via a modem.)  
Pre-requisites  
A workstation with terminal emulation software installed, such as  
Microsoft Hyperterminal. This software allows you to communicate  
with the Switch via the console port directly, or through a modem.  
Documentation supplied with the terminal emulation software.  
The RJ-45 to RS-232 cable supplied with the Switch  
You can find the pin-out diagram for this cable in Appendix B on page 69  
.
A Category 5 twisted pair Ethernet cable with RJ-45 connectors to  
connect your Switch to the network.  
Connecting the Workstation to the Switch  
1 Connect the workstation to the console port using the RJ-45 to RS-232  
cable as shown in Figure 10.  
Figure 10 Connecting a workstation to the Switch via the console port  
Switch  
Workstation  
(with terminal emulation  
software installed)  
Console Port  
Connection  
Standard Null Modem Cable  
To connect the cable:  
a Attach the RJ-45 to RS-232 cable to the console port on the Switch.  
b Connect the other end of the cable to one of the serial ports (also  
known as a COM port) on your workstation.  
c Tighten the retaining screws on the RS-232 connector to prevent it  
from being loosened.  
 
     
42  
CHAPTER 3: SETTING UP FOR MANAGEMENT  
2 Open your terminal emulation software and configure the COM port  
settings to which you have connected the cable. The settings should be  
set to match the default settings for the Switch, which are:  
Any of the following baud rates: 1200, 2400, 4800, 9600, 19200,  
38400, 57600, 115200  
8 data bits  
no parity  
1 stop bit  
no hardware flow control  
Refer to the documentation that accompanies the terminal emulation  
software for more information.  
Set the baud rate on your management device to 19200 baud if you  
want to view all the system initialization messages.  
Viewing IP Information via the Console Port  
You are now ready to view the automatically allocated IP information  
using the command line interface.  
1 Connect your Switch to the network using an Ethernet cable. As soon as  
a network connection is made the Switch begins the automatic IP  
configuration process.  
The automatic IP configuration process usually completes within one  
minute.  
2 The command line interface login sequence begins as soon as the Switch  
detects a connection to its console port.  
If the login prompt does not begin immediately, press Return a few times  
until it starts.  
3 At the login and password prompts, enter adminas your user name and  
enter your password at the password prompt (or just press Return if you  
have not yet set a password). If you have logged on correctly, the  
top-level menu of the command line interface is displayed as shown in  
the example in Figure 11.  
 
Methods of Managing a Switch  
43  
Figure 11 Example top-level command line interface menu  
Menu options: -----------3Com OfficeConnect Switch 9------------------------  
bridge  
feature  
gettingStarted  
logout  
physicalInterface  
protocol  
- Administer bridge-wide parameters  
- Administer system features  
- Basic device configuration  
- Logout of the Command Line Interface  
- Administer physical interfaces  
- Administer protocols  
security  
- Administer security  
system  
trafficManagement  
- Administer system-level functions  
- Administer traffic management  
Type ? for help.  
------------------------------------- (1)------------------------------------  
Select menu option:  
4 At the Select menu option prompt enter the protocol ip  
interface summarycommand. A summary of the automatically  
allocated IP information is displayed. Make a note of the Network IP  
Address.  
The initial set up of your Switch is now complete and the Switch is ready  
for you to set up your chosen management method. See “Methods of  
If you do not intend to use the command line interface via the console  
port to manage the Switch, you can logout, disconnect the serial cable  
and close the terminal emulator software.  
Methods of  
Managing a Switch  
Once you have completed the initial set up of your Switch, you can  
decide how you wish to manage the Switch. You can use one of the  
following methods:  
Command line interface management  
Web interface management  
SNMP management  
Command Line Each Switch has a command line interface (CLI) that allows you to  
Interface manage the Switch from a workstation, either locally via a console port  
Management connection (see Figure 12), or remotely over the network (see Figure 13).  
 
         
44  
CHAPTER 3: SETTING UP FOR MANAGEMENT  
Figure 12 CLI management via the console port  
Switch  
Workstation  
(with terminal emulation  
software installed)  
Console Port  
Connection  
Standard Null Modem Cable  
Figure 13 CLI management over the network  
Web Interface Each Switch has an internal set of web pages that allow you to manage  
Management the Switch using a Web browser remotely over an IP network (see  
Figure 14 Web interface management over the network  
SNMP Management You can manage a Switch using any network management workstation  
running the Simple Network Management Protocol (SNMP) as shown in  
Figure 15. For example, you can use the 3Com Network Supervisor  
software that is provided on the CD-ROM that accompanies your Switch.  
 
             
Setting Up Command Line Interface Management  
45  
Figure 15 SNMP management over the network  
Setting Up  
This section describes how you can set up command line interface  
management using a local console port connection or over the network.  
Command Line  
Interface  
Management  
CLI Management via To manage a Switch using the command line interface via the local  
the Console Port console port connection:  
1 Ensure you have connected your workstation to the console port correctly  
2 Your Switch is now ready to continue being managed and/or configured  
through the CLI via its console port.  
CLI Management over To manage a Switch using the command line interface over a network  
the Network using Telnet:  
1 Ensure you have already set up the Switch with IP information as  
2 Check that you have the IP protocol correctly installed on your  
management workstation. You can check this by trying to browse the  
World Wide Web. If you can browse, the IP protocol is installed.  
3 Check you can communicate with the Switch by entering a ping  
command at the DOS prompt in the following format:  
ping xxx.xxx.xxx.xxx  
(where xxx.xxx.xxx.xxx is the IP address of the Switch)  
If you get an error message, check that your IP information has been  
entered correctly and the Switch is powered up.  
 
       
46  
CHAPTER 3: SETTING UP FOR MANAGEMENT  
4 To open a Telnet session via the DOS prompt, enter the IP address of the  
Switch that you wish to manage in the following format:  
telnet xxx.xxx.xxx.xxx  
(where xxx.xxx.xxx.xxx is the IP address of the Switch)  
If opening a Telnet session via third party software you will need to enter  
the IP address in the format suitable for that software.  
5 At the login and password prompts, enter adminas your user name and  
enter your password at the password prompt (or just press Return if you  
have not yet set a password).  
If the login prompt does not display immediately, press Return a few  
times until it starts.  
6 If you have logged on correctly, the top-level menu of the command line  
interface for the Switch you wish to manage is displayed as shown in  
Setting Up Web  
Interface  
Management  
This section describes how you can set up web interface management  
over the network.  
Pre-requisites  
Ensure you have already set up the Switch with IP information as  
Ensure that the Switch is connected to the network using a Category  
5 twisted pair Ethernet cable with RJ-45 connectors.  
A suitable Web browser.  
Choosing a Browser  
To display the web interface correctly, use one of the following Web  
browser and platform combinations:  
Table 8 Supported Web Browsers and Platforms  
Windows  
98/Me  
Windows  
NT 4  
Windows  
2000  
Windows  
XP  
Solaris  
2.6  
Netscape 7  
Internet Explorer 5.5  
and 6.0  
 
       
Setting Up SNMP Management  
47  
For the browser to operate the web interface correctly, JavaScript™ and  
Cascading Style Sheets must be enabled on your browser. These features  
are enabled on a browser by default. You will only need to enable them if  
you have changed your browser settings.  
Web Management To manage a Switch using the web interface over an IP network:  
Over the Network  
1 Check that you have the IP protocol correctly installed on your  
management workstation. You can check this by trying to browse the  
World Wide Web. If you can browse, the IP protocol is installed.  
2 Check you can communicate with the Switch by entering a ping  
command at the DOS prompt in the following format:  
ping xxx.xxx.xxx.xxx  
(where xxx.xxx.xxx.xxx is the IP address of the Switch)  
If you get an error message, check that your IP information has been  
entered correctly and the Switch is powered up.  
3 Open your web browser and enter the IP address of the Switch that you  
wish to manage in the URL locator, for example, in the following format:  
(where xxx.xxx.xxx.xxx is the IP address of the Switch)  
4 At the login and password prompts, enter adminas your user name and  
enter your password at the password prompt (or just press Return if you  
have not yet set a password).  
5 Click on the Device View button to display the web management options.  
Setting Up SNMP  
Management  
Any network management application running the Simple Network  
Management Protocol (SNMP) can manage a Switch if:  
The correct Management Information Bases (MIBs) are installed on the  
management workstation.  
The management workstation is connected to the Switch using a port  
in VLAN 1 (the Default VLAN). By default, all ports on the Switch are in  
VLAN 1.  
You can use the 3Com Network Supervisor application that is provided on  
the CD-ROM that accompanies your Switch to provide SNMP  
management for your Switch. If you use 3Com Network Supervisor it  
 
       
48  
CHAPTER 3: SETTING UP FOR MANAGEMENT  
automatically loads the correct MIBs and necessary files onto your  
workstation.  
Pre-requisites  
Documentation supplied with the SNMP network management  
application software.  
To manage your Switch using an SNMP network management  
application, you need to specify SNMP community strings for the users  
defined on the Switch. You can do this using the Web management  
interface — refer to the command line interface section of the “Switch  
Management Interface Reference Guide” for more information.  
Default Users and  
Passwords  
If you intend to manage the Switch using the web interface or the  
command line interface, or to change the default passwords, you need to  
log in with a valid user name and password. The Switch has two default  
user names, and each user name has a different password and level of  
access. These default users are listed in Table 9.  
CAUTION: To protect your Switch from unauthorized access, you must  
change the two default passwords as soon as possible, even if you do not  
intend to actively manage your Switch  
Table 9 Default Users  
User  
Name  
Default  
Password Access Level  
monitor  
monitor  
monitor — the user can view all manageable parameters,  
but cannot change any manageable parameters  
admin  
(no  
security — the user can access and change all manageable  
password) parameters  
Use the admin default user name (no password) to login and carry out  
initial Switch setup.  
Changing Default You can change the default passwords using either:  
Passwords  
The gettingStartedcommand on the CLI, or  
The Security > Device > User > Modify operation on the web interface.  
 
         
Default Users and Passwords  
49  
For more information about default users and passwords, refer to the  
“Switch Management Interface Reference Guide” on the Switch  
CD-ROM.  
 
50  
CHAPTER 3: SETTING UP FOR MANAGEMENT  
 
PROBLEM SOLVING  
4
This chapter helps you to diagnose and solve problems you may have  
with the operation of your Switch. There is also an explanation of IP  
addressing.  
The topics covered are:  
If you experience a problem that is not listed here, it may be included in  
the Support section of the Switch Management Interface Reference  
Guide on the CD-ROM that accompanies your Switch.  
For Technical Support information, see Appendix D.  
 
       
52  
CHAPTER 4: PROBLEM SOLVING  
Solving Problems  
Indicated by LEDs  
If the LEDs on the Switch indicate a problem, refer to the list of suggested  
solutions below.  
The Power LED does not light  
Check that the power cable is firmly connected to the Switch and to the  
supply outlet. If the connection is secure and there is still no power, you  
may have a faulty power cord or an internal fault. Check the power cord  
by:  
testing it in another device  
connecting a working power cord to the ‘problem’ device  
Then contact your supplier for advice.  
On powering-up, the Alert LED remains orange  
This indicates that a port has failed and has been automatically disabled.  
You can verify this by checking that the Port Status LED is flashing  
Green/Yellow. This could be due to loop back failure. If a port fails, the  
Switch passes its Power On Self Test and continues to operate normally.  
On Powering up, the Alert LED flashes orange while the Switch is starting  
up. This is normal and does not indicate any of the above conditions.  
A Port Status LED is flashing green/yellow  
The port has failed and has been automatically disabled. The Switch  
passes its Power On Self Test and continues to operate normally, even if  
one or more ports are disabled.  
A link is connected and yet the Status LED for the port does not  
light  
Check that:  
The Switch and the device at the other end of the link (or cable) are  
connected securely.  
The devices at both ends of the link are powered-up.  
 
   
Solving Hardware Problems  
53  
The quality of cable is satisfactory.  
Auto-negotiation settings are the same at both ends.  
Auto-negotiation problems will occur with 10BASE-T, 100BASE-TX or  
1000BASE-T where auto-negotiation is disabled and incorrect cables  
are being used (cross-over or straight).  
Auto-negotiation problems will occur with fiber if:  
Fibers are broken.  
Auto-negotiation differs at either end (a link appears at the ‘fixed’  
end and not at the auto-negotiation end).  
A PoE device is connected and yet the PoE Status LED does not  
light  
supplied” on page 53 for troubleshooting procedures.  
Solving Hardware  
Problems  
In the rare event of your Switch unit experiencing a hardware failure,  
refer to the list of suggested solutions below.  
A device is connected to the Switch but power is not being  
supplied  
If power is not being supplied to a device connected to the Switch, you  
should do the following checks:  
Check that the device is compliant with the 802.3af standard ref. [18].  
The Switch will only supply power through rear panel ports 1, 2, 5,  
and 6 to 802.3af compliant devices.  
Check that the power budget for the Switch has not been exceeded.  
If the power budget has been exceeded, then by default, the powered  
device connected to the Power over Ethernet port with the lowest  
priority port will lose power. However, if all the devices connected to  
the Switch have equal priority levels, then the port with the highest  
number will lose power.  
By default the Switch will allow a device to receive power as long as  
the Power over Ethernet power supply has 18 watts spare in its power  
budget. If this much power is not available the device will not be  
powered (unless it has a higher priority than existing powered ports)  
and a Power over Ethernet fault will be reported for that port. If  
 
     
54  
CHAPTER 4: PROBLEM SOLVING  
enough power subsequently becomes available the port will be  
powered.  
Check that the port has not had a power limit imposed upon it.  
Solving  
If you experience communication problems with the Switch, ensure that:  
Communication  
Problems  
The Switch IP address has been configured as described in Chapter 3.  
If the Switch is separated from your management application by a  
router, ensure that the default gateway IP address within the Switch is  
the same as the IP address of the router.  
The Switchs IP address has been entered correctly in your network  
management application (such as 3Com Network Supervisor).  
The following is a brief overview of IP addressing, and how to obtain a  
registered IP address.  
IP Addressing  
To be managed correctly, each device on your network (for example a  
Switch or Hub) must have a unique IP address. IP addresses have the  
format n.n.n.n where n is a decimal number between 0 and 255. An  
example IP address is 192.168.100.8.  
The IP address is split into two parts:  
The first part (‘192.168.100’ in the example) identifies the network on  
which the device resides  
The second part (‘.8’ in the example) identifies the device within the  
network  
The natural subnet mask for this example is 255.255.255.0.  
If your network has a connection to the external IP network, that is, you  
access the Internet, you must apply for a registered IP address.  
How do you obtain a registered IP Address?  
The IP registration system ensures that every IP address used is unique; if  
you do not have a registered IP address, you may be using an identical  
address to someone else and your network will not operate correctly.  
 
     
Solving Software Upgrade Problems  
55  
The Internet Assigned Numbers Authority is the organization responsible  
for supplying registered IP addresses. The following contact information is  
correct at time of publication:  
World Wide Web site: http://www.iana.org/  
If your IP network is internal to your organization only, that is, you do not  
access the Internet, you may use any arbitrary IP address as long as it is  
not being used by another device on your network. 3Com suggests you  
use addresses in the range 192.168.0.0 to 192.168.255.255 with a  
subnet mask of 255.255.255.0.  
These suggested IP addresses are part of a group of IP addresses that  
have been set aside specially for use ‘in house’ only.  
Solving Software  
Upgrade Problems  
You can upgrade the management software of the Switch by using the  
System > Control > Software Upgrade operation in the Web Interface, or  
the system control softwareUpgradecommand in the  
command line interface. For details on these options, refer to the  
Management Interface Reference Guide supplied in HTML format on the  
CD-ROM that accompanies your Switch.  
If you have problems with your software upgrade, refer to the Problem  
Solving section in the Management Interface Reference Guide.  
Recovering from a  
Lost Password  
The password recovery mechanism assumes that the Switch is located in  
a physically secure area, and access is restricted to legitimate network  
administrators. The first time the Switch is powered on, you will be  
prompted to set a password for administrator access. Record the  
password and store it in a safe place.  
If you forget the password, follow this recovery procedure:  
Connect a workstation to the Switchs console port.  
Use a terminal emulation software package such as Microsoft  
Hyperterminal to connect to the console interface on the Switch.  
Log onto the Switch with the reserved user name “recover” and the  
password “recover” to place it into password recovery mode.  
 
     
56  
CHAPTER 4: PROBLEM SOLVING  
Reset power to the Switch within 30 seconds by removing the power  
cord from the Switch and then re-connecting it.  
When the Switch restarts, enter a new password for the  
Administrator.  
Log onto the Switch with the user name “admin” and the new  
password you just configured.  
 
SAFETY INFORMATION  
A
You must read the following safety information before carrying out any  
installation or removal of components, or any maintenance procedures  
on the Switch.  
WARNING: Warnings contain directions that you must follow for your  
personal safety. Follow all directions carefully.  
You must read the following safety information carefully before you  
install or remove the unit.  
AVERTISSEMENT: Les avertissements présentent des consignes que vous  
devez respecter pour garantir votre sécurité personnelle. Vous devez  
respecter attentivement toutes les consignes.  
Nous vous demandons de lire attentivement les consignes suivantes de  
sécurité avant d’installer ou de retirer l’appareil.  
VORSICHT: Warnhinweise enthalten Anweisungen, die Sie zu Ihrer  
eigenen Sicherheit befolgen müssen. Alle Anweisungen sind sorgfältig zu  
befolgen.  
Sie müssen die folgenden Sicherheitsinformationen’ sorgfältig  
durchlesen, bevor Sie das Gerät installieren oder ausbauen.  
ADVERTENCIA: las advertencias contienen indicaciones que debe  
respetar por su seguridad personal. Siga las indicaciones con cuidado.  
Antes de instalar o extraer la unidad, debe leer detenidamente la  
siguiente información de seguridad.  
AVVERTENZA: le avvertenze contengono istruzioni indispensabili per  
assicurare la sicurezza personale. Seguire attentamente tutte le  
indicazioni fornite.  
Prima di installare o rimuovere l'unità, leggere attentamente le seguenti  
informazioni di sicurezza.  
 
     
58  
APPENDIX A: SAFETY INFORMATION  
Power Cord Set — Japan  
Important Safety Information  
WARNING: Installation and removal of the unit must be carried out by  
qualified personnel only.  
WARNING: The unit must be earthed (grounded). Connect the unit to an  
earthed power supply to ensure compliance with safety standards.  
WARNING: Power Cord Set:  
This must be approved for the country where it is used:  
U.S.A. and  
Canada  
The cord set must be UL-approved and CSA certified.  
The minimum specification for the flexible cord is:  
No. 18 AWG  
Type SV or SJ  
3-conductor  
The cord set must have a rated current capacity of at least  
10A.  
The attachment plug must be an earth-grounding type  
with a NEMA 5-15P (15A, 125V) or NEMA 6-15P (15A,  
250V) configuration.  
United  
Kingdom only  
The supply plug must comply with BS1363 (3-pin 13 amp)  
and be fitted with a 5A fuse which complies with BS1362.  
The mains cord must be <HAR> or <BASEC> marked and  
be of type H03VVF3GO.75 (minimum).  
Europe only:  
The supply plug must comply with CEE 7/7 (“SCHUKO”).  
The mains cord must be <HAR> or <BASEC> marked and  
be of type H03VVF3GO.75 (minimum).  
Denmark  
The supply plug must comply with section 107-2-D1,  
standard DK2-1a or DK2-5a.  
Switzerland  
The supply plug must comply with SEV/ASE 1011.  
WARNING: The appliance coupler (the connector to the unit and not the  
wall plug) must have a configuration for mating with an EN60320/IEC320  
appliance inlet.  
 
     
Important Safety Information  
59  
WARNING: The socket outlet must be near to the unit and easily  
accessible. You can only remove power from the unit by disconnecting  
the power cord from the outlet.  
WARNING: This unit operates under SELV (Safety Extra Low Voltage)  
conditions according to IEC 60950. The conditions are only maintained if  
the equipment to which it is connected also operates under SELV  
conditions.  
WARNING: France and Peru only:  
This unit cannot be powered from ITsupplies. If your supplies are of IT  
type, this unit must be powered by 230V (2P+T) via an isolation  
transformer ratio 1:1, with the secondary connection point labelled  
Neutral, connected directly to earth (ground).  
Impédance à la terre.  
WARNING: U.K. only:  
If connecting a modem to the console port of the Switch, only use a  
modem which is suitable for connection to the telecommunications  
system.  
WARNING: RJ-45 Ports. These are shielded RJ-45 data sockets. They cannot  
be used as standard traditional telephone sockets, or to connect the unit to a  
traditional PBX or public telephone network. Only connect RJ-45 data  
connectors, network telephony systems, or network telephones to these  
sockets.  
Either shielded or unshielded data cables with shielded or unshielded  
jacks can be connected to these data sockets.  
WARNING: Fiber Optic ports – Optical Safety  
Class 1  
LASER PRODUCT  
Never look at the transmit laser through a magnifying device while it is  
powered on. Never look directly at the fiber TX port and fiber cable ends  
when they are powered on.  
WARNING: Use of controls or adjustments of performance or procedures  
other than those specified herein may result in hazardous laser emissions.  
 
60  
APPENDIX A: SAFETY INFORMATION  
WARNING: The Switch supports Power over Ethernet on rear ports 1, 2,  
5 and 6. These ports should only be used for Ethernet wiring within the  
same building.  
L’information de Sécurité Importante  
AVERTISSEMENT: L'installation et la dépose de ce groupe doivent être  
confiés à un personnel qualifié.  
AVERTISSEMENT: Vous devez mettre l’appareil à la terre (à la masse) ce  
groupe. Brancher l’unité à une source de courant mise à la terre pour  
assurer la conformité aux normes de sécurité.  
AVERTISSEMENT: Cordon électrique:  
Il doit être agréé ans le pays d'utilisation:  
Etats-Unis et  
Canada  
Le cordon doit avoir reçu l'homologation des UL et un  
certificat de la CSA  
Le cordon souple doit respecter, à titre minimum, les  
spécifications suivantes :  
calibre 18 AWG  
type SV ou SJ  
à 3 conducteurs  
Le cordon doit être en mesure d'acheminer un courant  
nominal d'au moins 10 A  
La prise femelle de branchement doit être du type à mise à la  
terre (mise à la masse) et respecter la configuration NEMA  
5-15P (15 A, 125 V) ou NEMA 6-15P (15 A, 250 V)  
Danemark  
Europe  
La prise mâle d'alimentation doit respecter la section 107-2  
D1 de la norme DK2 1a ou DK2 5a  
La prise secteur doit être conforme aux normes CEE 7/7  
(“SCHKO”)  
LE cordon secteur doit porter la mention <HAR> ou  
<BASEC> et doit être de type HO3VVF3GO.75 (minimum).  
Suisse  
La prise mâle d'alimentation doit respecter la norme SEV/ASE  
1011  
AVERTISSEMENT: Le coupleur d'appareil (le connecteur du groupe et  
non pas la prise murale) doit respecter une configuration qui permet un  
branchement sur une entrée d'appareil EN60320/CEI 320.  
 
   
L’information de Sécurité Importante  
61  
AVERTISSEMENT: La prise secteur doit se trouver à proximité de  
l’appareil et son accès doit être facile. Vous ne pouvez mettre l’appareil  
hors circuit qu'en débranchant son cordon électrique au niveau de cette  
prise.  
AVERTISSEMENT: Lappareil fonctionne à une tension extrêmement  
basse de sécurité qui est conforme à la norme CEI 60950. Ces conditions  
ne sont maintenues que si l'équipement auquel il est raccordé fonctionne  
dans les mêmes conditions.  
AVERTISSEMENT: France et Pérou uniquement:  
Ce groupe ne peut pas être alimenté par un dispositif à impédance à la  
terre. Si vos alimentations sont du type impédance à la terre, ce groupe  
doit être alimenté par une tension de 230 V (2 P+T) par le biais d'un  
transformateur d'isolement à rapport 1:1, avec un point secondaire de  
connexion portant l'appellation Neutre et avec raccordement direct à la  
terre (masse).  
AVERTISSEMENT: Points d’accès RJ-45. Ceux-ci sont protégés par des  
prises de données. Ils ne peuvent pas être utilisés comme prises de  
téléphone conventionnelles standard, ni pour la connection de l’unité à  
un réseau téléphonique central privé ou public. Raccorder seulement  
connecteurs de données RJ-45, systèmes de réseaux de téléphonie ou  
téléphones de réseaux à ces prises.  
Il est possible de raccorder des câbles protégés ou non protégés avec des  
jacks protégés ou non protégés à ces prises de données.  
AVERTISSEMENT: Ports pour fibres optiques – sécurité sur le plan  
optique.  
Dispositif Laser  
de Classe 1  
Ne regardez jamais le laser tant qu'il est sous tension. Ne regardez jamais  
directement le port à fibres optiques et les embouts de câbles à fibres  
optiques tant qu'ils sont sous tension.  
AVERTISSEMENT: L'utilisation de contrôles, de réglages de  
performances ou de procédures autres que ceux spécifiés au sein du  
 
62  
APPENDIX A: SAFETY INFORMATION  
présent document risque d'entraîner l'exposition à des rayonnements  
laser dangereux.  
AVERTISSEMENT: Le commutateur prend en charge l'alimentation sur  
Ethernet sur les ports arrière 1, 2, 5 et 6. Ces ports doivent être utilisés  
pour la connectique Ethernet à l'intérieur d'un même bâtiment  
uniquement.  
Wichtige Sicherheitsinformationen  
VORSICHT: Die Installation und der Ausbau des Geräts darf nur durch  
Fachpersonal erfolgen.  
VORSICHT: Das Gerät muß geerdet sein. Das Gerät muß an eine  
geerdete Steckdose angeschlossen werden, die europäischen  
Sicherheitsnormen erfüllt.  
VORSICHT: Der Anschlußkabelsatz muß mit den Bestimmungen des  
Landes übereinstimmen, in dem er verwendet werden soll.  
VORSICHT: Der Gerätestecker (der Anschluß an das Gerät, nicht der  
Wandsteckdosenstecker) muß eine passende Konfiguration für einen  
Geräteeingang gemäß EN60320/IEC320 haben.  
VORSICHT: Die Netzsteckdose muß in der Nähe des Geräts und leicht  
zugänglich sein. Die Stromversorgung des Geräts kann nur durch  
Herausziehen des Gerätenetzkabels aus der Netzsteckdose unterbrochen  
werden.  
VORSICHT: Europe  
Das Netzkabel muß vom Typ HO3VVF3GO.75 (Mindestanforderung)  
sein und die Aufschrift <HAR> oder <BASEC> tragen.  
Der Netzstecker muß die Norm CEE 7/7 erfüllen (”SCHUKO”).  
VORSICHT: Der Betrieb dieses Geräts erfolgt unter den  
SELV-Bedingungen (Sicherheitskleinstspannung) gemäß IEC 60950. Diese  
Bedingungen sind nur gegeben, wenn auch die an das Gerät  
angeschlossenen Geräte unter SELV-Bedingungen betrieben werden.  
VORSICHT: RJ-45-Porte. Diese Porte sind geschützte Datensteckdosen.  
Sie dürfen weder wie normale traditionelle Telefonsteckdosen noch für  
 
   
Información de seguridad importante  
63  
die Verbindung der Einheit mit einem traditionellem privatem oder  
öffentlichem Telefonnetzwerk gebraucht werden. Nur  
RJ-45-Datenanscluße, Telefonnetzsysteme or Netztelefone an diese  
Steckdosen anschließen.  
Entweder geschützte oder ungeschützte Buchsen dürfen an diese  
Datensteckdosen angeschlossen werden.  
VORSICHT: Faseroptikanschlüsse – Optische Sicherheit  
.
Laser Gerät  
der Klasse 1  
Niemals ein Übertragungslaser betrachten, während dieses eingeschaltet  
ist. Niemals direkt auf die Faseransnchlüsse und auf die Faserkabelenden  
schauen, während diese eingeschaltet sind.  
VORSICHT: Die Verwendung von nicht in diesem Handbuch  
aufgeführten Steuerungs- oder Änderungsoptionen zum Modifizieren  
der Leistung oder der verwendeten Verfahren kann zur Freisetzung  
gefährlicher Laserstrahlung führen.  
VORSICHT: Der Switch unterstützt Power over Ethernet an den  
rückseitigen Ports 1, 2, 5 und 6. Diese Ports dürfen nur für die  
Ethernet-Verkabelung im gleichen Gebäude verwendet werden.  
Información de seguridad importante  
ADVERTENCIA: la instalación y retirada de la unidad sólo debe llevarla a  
cabo personal cualificado.  
ADVERTENCIA: la unidad debe tener toma de tierra (conexión a tierra).  
conecte la unidad a una fuente de alimentación con toma de tierra para  
garantizar el cumplimiento de las normas de seguridad.  
 
   
64  
APPENDIX A: SAFETY INFORMATION  
ADVERTENCIA: conjunto de cables eléctricos:  
debe estar homologado para el país donde se utilice:  
EE.UU. y  
Canadá  
El conjunto de cables debe estar homologado por UL y tener  
la certificación CSA.  
La especificación mínima del cable flexible es:  
Nº 18 AWG  
Tipo SV o SJ  
Tres conductores  
El conjunto de cables debe tener una capacidad de corriente  
nominal de al menos 10 A.  
El enchufe de conexión debe ser de tipo de toma de tierra  
con una configuración NEMA 5-15P (15 A, 125 V) o NEMA  
6-15P (15 A, 250 V).  
Sólo para el  
Reino Unido  
La toma de alimentación debe cumplir la norma BS1363 (3  
patillas, 13 A) e instalarse con un fusible de 5 A que cumpla  
BS1362.  
El cable de alimentación de red debe tener la marca <HAR>  
o <BASEC> y ser de tipo H03VVF3GO.75 (mínimo).  
Sólo para  
Europa  
La toma de alimentación debe cumplir la norma CEE 7/7  
("SCHUKO").  
El cable de alimentación de red debe tener la marca <HAR>  
o <BASEC> y ser de tipo H03VVF3GO.75 (mínimo).  
Dinamarca  
Suiza  
La toma de alimentación debe cumplir la sección 107-2-D1  
de la norma DK2-1a o DK2-5a.  
La toma de alimentación debe cumplir la norma SEV/ASE  
1011.  
ADVERTENCIA: el acoplador del equipo (el conector para la unidad y no  
la toma de la pared) debe tener una configuración que se adapte a una  
entrada del equipo EN60320/IEC320.  
ADVERTENCIA: el enchufe debe estar cerca de la unidad y ser de fácil  
acceso. La única forma de cortar la alimentación de la unidad consiste en  
desconectar el cable eléctrico de la toma de corriente.  
ADVERTENCIA: esta unidad funciona en condiciones SELV (voltaje  
extrabajo de seguridad) de conformidad con la norma IEC 60950. Las  
condiciones sólo se mantienen si el equipo al que esté conectada la  
unidad también funciona en condiciones SELV.  
 
Información de seguridad importante  
65  
ADVERTENCIA: sólo para Francia y Perú:  
esta unidad no puede recibir corriente de fuentes IT†. Si las fuentes de  
suministro de corriente son de tipo IT, esta unidad debe recibir 230 V  
(2P+T) a través de un transformador aislador con relación 1:1, con el  
punto de conexión secundario etiquetado como neutro conectado  
directamente a tierra.  
†Impédance à la terre.  
ADVERTENCIA: sólo para el Reino Unido:  
si conecta un módem al puerto de consola del Switch, utilice sólo un  
módem que sea adecuado para la conexión con el sistema de  
telecomunicaciones.  
ADVERTENCIA: puertos RJ-45. Son conectores de datos RJ-45 blindados.  
No pueden utilizarse como tomas de teléfono tradicionales estándar ni  
para conectar la unidad a una central de conmutación PBX tradicional ni  
a una red telefónica pública. Conecte sólo conectores de datos RJ-45,  
sistemas de telefonía de red local o teléfonos de red local a estas tomas.  
Pueden conectarse cables de datos blindados o sin blindaje con clavijas  
blindadas o sin blindaje a estos conectores de datos.  
ADVERTENCIA: Puertos de fibra óptica: seguridad óptica  
DISPOSITIVO LÁSER  
DE CLASE 1  
No mire nunca al láser de transmisión mientras esté encendido. No mire  
nunca directamente al puerto de transmisión de fibra óptica ni a los  
extremos del cable de fibra óptica mientras estén conectados.  
ADVERTENCIA: el uso de controles, ajustes de rendimiento o  
procedimientos distintos a los especificados en este documento puede  
producir emisiones de láser peligrosas.  
ADVERTENCIA: El conmutador admite Power over Ethernet en los  
puertos traseros 1, 2, 5 y 6. Estos puertos sólo deben utilizarse para  
cableado Ethernet dentro del mismo edificio.  
 
66  
APPENDIX A: SAFETY INFORMATION  
Importanti Informazioni di Sicurezza  
AVVERTENZA: le operazioni di installazione e rimozione dell'unità  
devono essere eseguite esclusivamente da personale qualificato.  
AVVERTENZA: l'unità deve disporre di messa a terra. per rispettare gli  
standard di sicurezza, è necessario collegare l'unità a una fonte di  
alimentazione dotata di messa a terra.  
AVVERTENZA: set dei cavi di alimentazione  
Deve essere approvato per il paese in cui viene utilizzato.  
Stati Uniti e  
Canada  
"Il cavo deve avere l'approvazione UL e la certificazione  
CSA  
"La specifica minima per il cavo flessibile è: N. 18 AWG  
Tipo SV o SJ 3 conduttori  
"Il set di cavi deve avere una capacità nominale di almeno  
10 A.  
"La spina di collegamento deve essere dotata di messa a  
terra, con configurazione NEMA 5-15P (15 A, 125 V) o  
NEMA 6-15P (15 A, 250 V).  
Solo Regno  
Unito  
"La spina di alimentazione deve essere conforme BS1363  
(3 pin 13 amp) e dotata di un fusibile da 5 A conforme  
BS1362.  
"Il cavo dell'alimentazione di rete deve essere  
contrassegnato dai marchi <HAR> o <BASEC> ed essere di  
tipo H03VVF3GO.75 (minimo).  
Solo Europa  
"La spina di alimentazione deve essere conforme CEE 7/7  
(tipo "SCHUKO").  
"Il cavo dell'alimentazione di rete deve essere  
contrassegnato dai marchi <HAR> o <BASEC> ed essere di  
tipo H03VVF3GO.75 (minimo).  
Danimarca  
Svizzera  
"La spina di alimentazione deve essere conforme alla  
sezione 107-2-D1, standard DK2-1a o DK2  
"La spina di alimentazione deve essere conforme SEV/ASE  
1011  
AVVERTENZA: l'accoppiatore (il connettore all'unità e non la spina a  
muro) deve avere una configurazione abbinabile a una presa  
EN60320/IEC320.  
 
   
Importanti Informazioni di Sicurezza  
67  
AVVERTENZA: la presa deve trovarsi vicino all'unità ed essere facilmente  
accessibile. L'unico modo per rimuovere l'alimentazione dall'unità  
consiste nello scollegare il cavo di alimentazione dalla presa.  
AVVERTENZA: questa unità funziona alle condizioni SELV (Safety Extra  
Low Voltage) previste dalla norma IEC 60950. Tali condizioni sono  
mantenute solo se anche l'apparecchiatura a cui è collegata opera nelle  
stesse condizioni.  
AVVERTENZA: solo per Francia e Perù. Questa unità non può ricevere  
alimentazione di tipo IT†. Se l'alimentazione è di tipo IT, l'unità deve  
essere alimentata a 230 V (2P+T) tramite un trasformatore di isolamento  
con rapporto 1:1, con il punto di collegamento secondario  
contrassegnato come Neutro, collegato direttamente a terra.  
†Impédance à la terre.  
AVVERTENZA: solo Regno Unito. Se si collega un modem alla porta  
Console dello Switch, utilizzare solo un modem idoneo per il  
collegamento con il sistema di telecomunicazioni.  
AVVERTENZA: le porte RJ-45 sono prese dati RJ-45 schermate. Non è  
pertanto possibile utilizzarle come normali prese telefoniche né per  
collegare l'unità a un PBX (Private Branch Exchange, centralino telefonico  
privato) o a una rete telefonica pubblica. Collegare a queste porte solo  
prese dati RJ-45, sistemi di telefonia o telefoni di rete. A queste prese  
dati è possibile collegare cavi dati schermati o non schermati con prese  
dati schermate o non schermate.  
AVVERTENZA: porte a fibre ottiche - Protezione degli occhi  
PRODOTTO LASER  
CLASSE 1  
Non guardare mai il LED di trasmissione attraverso uno strumento ottico  
di ingrandimento quando è acceso. Non guardare mai direttamente la  
porta TX a fibre ottiche e le estremità del cavo a fibre ottiche quando  
sono accese.  
 
68  
APPENDIX A: SAFETY INFORMATION  
AVVERTENZA: l'esecuzione di procedure o regolazioni non previste dalle  
istruzioni fornite in questa guida può provocare emissioni laser nocive.  
AVVERTENZA: Lo switch supporta l'alimentazione su Ethernet sulle porte  
posteriori 1, 2, 5 e 6. Tali porte devono essere utilizzate soltanto per il  
cablaggio Ethernet all'interno dello stesso edificio.  
 
PIN-OUTS  
B
RJ-45 to RS-232  
Adapter Cable  
An RJ-45 to DB-9 adapter cable is provided with the Switch for  
connecting a management device to the RJ-45 console port on the rear  
panel. The pinout is shown below.  
Table 10 Pin assignments  
RJ-45 Pin Signal  
DB-9 Pin  
Direction  
1
2
3
4
5
6
7
8
RTS  
7
4
3
1
5
2
6
8
---  
DTR  
TxD  
DCD  
Ground  
RxD  
DSR  
CTS  
 
         
70  
APPENDIX B: PIN-OUTS  
RJ-45 Pin  
Assignments  
Pin assignments are identical for 10BASE-T and 100BASE-TX RJ-45  
connectors.  
Table 11 Pin assignments  
Pin Number  
10BASE-T/100BASE-TX  
1000BASE-T  
Ports configured as MDI  
1
2
3
4
5
6
7
8
Transmit Data +  
Transmit Data -  
Receive Data +  
Not assigned  
Not assigned  
Receive Data –  
Not assigned  
Not assigned  
Bidirectional Data A+  
Bidirectional Data A-  
Bidirectional Data B+  
Bidirectional Data C+  
Bidirectional Data C-  
Bidirectional Data B-  
Bidirectional Data D+  
Bidirectional Data D-  
Table 12 Pin assignments  
Pin Number  
10BASE-T/100BASE-TX  
1000BASE-T  
Ports configured as MDIX  
1
2
3
4
5
6
7
8
Receive Data +  
Receive Data -  
Transmit Data +  
Not assigned  
Not assigned  
Transmit Data -  
Not assigned  
Not assigned  
Bidirectional Data B+  
Bidirectional Data B-  
Bidirectional Data A+  
Bidirectional Data D+  
Bidirectional Data D-  
Bidirectional Data A-  
Bidirectional Data C+  
Bidirectional Data C-  
 
   
TECHNICAL SPECIFICATIONS  
C
OfficeConnect Managed Switch 9 and Switch 9 FX  
Physical Dimensions  
Height: 57.9 mm (2.3 in.)  
Width: 229 mm (9.0 in.)  
Depth: 185.4 mm (7.3 in.)  
Weight: 1.0 kg (approx)  
Environmental Requirements  
Operating Temperature  
Storage Temperature  
Operating Humidity  
Standards  
0 ° to 50 °C (32 ° to 122 °F)  
–40 ° to +70 °C (-40 ° to 158 °F)  
10–95% relative humidity, non-condensing  
EN60068 to 3Com schedule (Package testing: paras 2.1, 2.2, 2.30, and 2.32.  
Operational testing: paras 2.1, 2.2, 2.30 and 2.13).  
Safety  
Agency Certifications  
EMC  
UL60950-1, EN60950-1, CSA 22.2 No. 60950-1, IEC 60950-1  
Emissions  
CISPRR 22 Class A, EN55022 Class A, FCC Part 15 Subpart B Class A,  
ICES-003 Class A, AS/NZS 3548 Class A, EN61000-3-2, EN61000-3-3  
Immunity  
EN 55024  
Heat Dissipation  
Power Supply  
Power Inlet  
15 watts maximum (51 BTU/hour maximum)  
12V DC 5%  
provided by in-line adapter  
AC Line Frequency  
Input Voltage Options  
Current Rating  
50/60 Hz  
100–240 VAC  
3.5 A (amps) (maximum)  
 
       
72  
APPENDIX C: TECHNICAL SPECIFICATIONS  
Standards Supported  
SNMP  
SNMP protocol (RFC 1157)  
Terminal Emulation  
Telnet (RFC 854)  
MIB-II (RFC 1213)  
Protocols Used for Administration  
UDP (RFC 768)  
Bridge MIB (RFC 1493)  
RMON MIB (RFC 2819,  
Groups 1, 2, 3, 7, 8, 9)  
IP (RFC 791)  
ICMP (RFC 792)  
RMON MIB II (RFC 2021)  
TCP (RFC 793)  
Remote Monitoring MIB  
(RFC 1757)  
ARP (RFC 826)  
TFTP (RFC 783)  
MAU MIB (RFC 2239)  
DHCP (RFC 2131, RFC 2132, RFC 1534)  
 
OBTAINING SUPPORT FOR YOUR  
PRODUCT  
D
Register Your  
Product  
Warranty and other service benefits start from the date of purchase, so it  
is important to register your product quickly to ensure you get full use of  
the warranty and other service benefits available to you.  
Warranty and other service benefits are enabled through product  
registration. Register your product at http://eSupport.3com.com/.  
3Com eSupport services are based on accounts that you create or have  
authorization to access. First time users must apply for a user name and  
password that provides access to a number of eSupport features  
including Product Registration, Repair Services, and Service Request. If  
you have trouble registering your product, please contact 3Com Global  
Services for assistance.  
Purchase  
Value-Added  
Services  
To enhance response times or extend warranty benefits, contact 3Com or  
your authorized 3Com reseller. Value-added services like 3Com ExpressSM  
and GuardianSM can include 24x7 telephone technical support, software  
upgrades, onsite assistance or advance hardware replacement.  
Experienced engineers are available to manage your installation with  
minimal disruption to your network. Expert assessment and  
implementation services are offered to fill resource gaps and ensure the  
success of your networking projects. More information on 3Com  
maintenance and Professional Services is available at  
Contact your authorized 3Com reseller or 3Com for a complete list of the  
value-added services available in your area.  
 
       
74  
APPENDIX D: OBTAINING SUPPORT FOR YOUR PRODUCT  
Troubleshoot  
Online  
You will find support tools posted on the 3Com web site at  
3Com Knowledgebase helps you troubleshoot 3Com products. This  
query-based interactive tool is located at  
http://knowledgebase.3com.com and contains thousands of technical  
solutions written by 3Com support engineers.  
Access Software  
Downloads  
Software Updates are the bug fix / maintenance releases for the version  
of software initially purchased with the product. In order to access these  
Software Updates you must first register your product on the 3Com web  
First time users will need to apply for a user name and password. A link to  
software downloads can be found at http://eSupport.3com.com/, or  
under the Product Support heading at http://www.3com.com/  
Software Upgrades are the software releases that follow the software  
version included with your original product. In order to access upgrades  
and related documentation you must first purchase a service contract  
from 3Com or your reseller.  
Telephone Technical To enable telephone support and other service benefits, you must first  
Support and Repair  
register your product at http://eSupport.3com.com/  
Warranty and other service benefits start from the date of purchase, so it  
is important to register your product quickly to ensure you get full use of  
the warranty and other service benefits available to you.  
When you contact 3Com for assistance, please have the following  
information ready:  
Product model name, part number, and serial number  
Proof of purchase, if you have not pre-registered your product  
A list of system hardware and software, including revision level  
Diagnostic error messages  
Details about recent configuration changes, if applicable  
 
     
Contact Us  
75  
To send a product directly to 3Com for repair, you must first obtain a  
return authorization number (RMA). Products sent to 3Com, without  
authorization numbers clearly marked on the outside of the package, will  
be returned to the sender unopened, at the senders expense. If your  
product is registered and under warranty, you can obtain an RMA  
number online at http://eSupport.3com.com/. First time users will  
need to apply for a user name and password.  
Contact Us  
3Com offers telephone, e-mail and internet access to technical support  
and repair services. To access these services for your region, use the  
appropriate telephone number, URL or e-mail address from the list below.  
Telephone numbers are correct at the time of publication. Find a current  
directory of contact information posted on the 3Com web site at  
Country  
Telephone Number  
Country  
Telephone Number  
Asia, Pacific Rim Telephone Technical Support and Repair  
Australia  
Hong Kong  
India  
1 800 678 515  
800 933 486  
+61 2 9424 5179 or  
000800 650 1111  
001 803 61009  
00531 616 439 or  
03 3507 5984  
Philippines  
1235 61 266 2602 or  
1800 1 888 9469  
800 810 3033  
800 6161 463  
080 333 3308  
00801 611 261  
001 800 611 2000  
P.R. of China  
Singapore  
S. Korea  
Taiwan  
Thailand  
Indonesia  
Japan  
Malaysia  
New Zealand  
Pakistan  
1800 801 777  
0800 446 398  
+61 2 9937 5083  
You can also obtain support in this region using the following e-mail: [email protected]  
Or request a repair authorization number (RMA) by fax using this number:  
+ 65 543 6348  
Europe, Middle East, and Africa Telephone Technical Support and Repair  
From anywhere in these  
regions, call:  
+44 (0)1442 435529  
From the following countries, you may use the numbers shown:  
 
 
76  
APPENDIX D: OBTAINING SUPPORT FOR YOUR PRODUCT  
Country  
Telephone Number  
Country  
Telephone Number  
Austria  
Belgium  
01 7956 7124  
070 700 770  
7010 7289  
01080 2783  
0825 809 622  
01805 404 747  
06800 12813  
1407 3387  
1800 945 3794  
199 161346  
Luxembourg  
Netherlands  
Norway  
342 0808128  
0900 777 7737  
815 33 047  
00800 441 1357  
707 200 123  
0800 995 014  
9 021 60455  
07711 14453  
08488 50112  
0870 909 3266  
Denmark  
Finland  
France  
Germany  
Hungary  
Ireland  
Israel  
Poland  
Portugal  
South Africa  
Spain  
Sweden  
Switzerland  
U.K.  
Italy  
You can also obtain support in this region using the following URL:  
Latin America Telephone Technical Support and Repair  
Antigua  
Argentina  
Aruba  
Bahamas  
Barbados  
Belize  
Bermuda  
Bonaire  
Brazil  
Cayman  
Chile  
Colombia  
Costa Rica  
Curacao  
Ecuador  
Dominican Republic  
1 800 988 2112  
0 810 444 3COM  
1 800 998 2112  
1 800 998 2112  
1 800 998 2112  
52 5 201 0010  
1 800 998 2112  
1 800 998 2112  
0800 13 3COM  
Guatemala  
Haiti  
Honduras  
Jamaica  
Martinique  
Mexico  
Nicaragua  
Panama  
Paraguay  
Peru  
Puerto Rico  
Salvador  
Trinidad and Tobago  
Uruguay  
Venezuela  
Virgin Islands  
AT&T +800 998 2112  
57 1 657 0888  
AT&T +800 998 2112  
1 800 998 2112  
571 657 0888  
01 800 849CARE  
AT&T +800 998 2112  
AT&T +800 998 2112  
54 11 4894 1888  
AT&T +800 998 2112  
1 800 998 2112  
AT&T +800 998 2112  
1 800 998 2112  
AT&T +800 998 2112  
AT&T +800 998 2112  
57 1 657 0888  
1 800 998 2112  
AT&T +800 998 2112  
AT&T +800 998 2112  
AT&T +800 998 2112  
1 800 998 2112  
AT&T +800 998 2112  
AT&T +800 998 2112  
You can also obtain support in this region using the following:  
Spanish speakers, enter the URL:  
Portuguese speakers, enter the URL:  
English speakers in Latin America should send e-mail to:  
US and Canada Telephone Technical Support and Repair  
1 800 876 3266  
 
REGULATORY NOTICES  
FCC STATEMENT  
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to  
part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful  
interference when the equipment is operated in a commercial environment. This equipment generates, uses  
and can radiate radio frequency energy and, if not installed and used in accordance with the instructions,  
may cause harmful interference to radio communications. Operation of this equipment in a residential area is  
likely to cause harmful interference to radio communications, in which case the user will be required to  
correct the interference at their own expense.  
INFORMATION TO THE USER  
If this equipment does cause interference to radio or television reception, which can be determined by  
turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of  
the following measures:  
Reorient the receiving antenna.  
Relocate the equipment with respect to the receiver.  
Move the equipment away from the receiver.  
Plug the equipment into a different outlet so that equipment and receiver are on different branch circuits.  
If necessary, the user should consult the dealer or an experienced radio/television technician for additional  
suggestions. The user may find the following booklet prepared by the Federal Communications Commission  
helpful:  
How to Identify and Resolve Radio-TV Interference Problems  
This booklet is available from the U.S. Government Printing Office, Washington, DC 20402, Stock No.  
004-000-00345-4.  
In order to meet FCC emissions limits, this equipment must be used only with cables which comply with IEEE  
802.3.  
CSA STATEMENT  
This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment  
Regulations.  
Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel brouilleur  
du Canada.  
CE STATEMENT (EUROPE)  
This product complies with the European Low Voltage Directive 73/23/EEC and EMC Directive 89/336/EEC as  
amended by European Directive 93/68/EEC.  
Warning: This is a class A product. In a domestic environment this product may cause radio interference in  
which case the user may be required to take adequate measures.  
You must only insert a 3Com approved SFP transceiver into the Switch. These are listed in the “Approved SFP  
Transceivers” section of the Getting Started Guide.  
VCCI STATEMENT  
 
 
 

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