3COM Unified Gigabit Wireless PoE Switch 24 User Manual

3Com® Unified Gigabit Wireless

PoE Switch 24

Quick Start Guide

Kurzanleitung

3CRUS2475

www.3Com.com

Part Number 10015246 Rev. AA Published Se

tember 2006

About this Guide This guide is intended for use by those responsible for installing and

setting up network equipment; consequently, it assumes a basic working knowledge of LANs (local area networks) and WLANs (wireless local area networks).

Diese Anleitung ist fur die Benutzung durch Netzwerkadministratoren vorgesehen, die fur die Installation und das einstellen von Netzwerkkomponenten verantwortlich sind; sie setzt Erfahrung bei der Arbeit mit LANs (Local Area Networks) und WLANs ( Wireless Local Area Networks) voranus.

Get the latest documentation and software for your 3Com switch

Thank you for purchasing a 3Com® Unified Gigabit Wireless PoE

24. As part of our commitment to help you get the most out of

Switch your 3Com network equipment, we offer updated documentation and software on our website.

In addition to this Quick Start Guide, a detailed User Guide and a Command Line Interface Guide are also available on the 3Com website.

To obtain the most up-to-date user documentation and operating software for the 3Com Unified Switch www.3Com.com and select the “Support and Registration” link.

24, point your web browser to:

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

4 Get the latest documentation and software for your 3Com switch

About this Guide 2

Get the latest documentation and software

for your 3Com switch 3

1 Introducing the 3Com Unified Gigabit

Wireless PoE Switch 24 7

Overview of the Unified Gigabit Wireless PoE Switch 24 9

Unified Switching 9 Wired Features 10 Power over Ethernet (PoE) Features 10 Wireless Features 10

2 Installing the 3Com Unified Switch 24 11

Checking the Package Contents 11 Choosing a Suitable Location 11 Aufstellen des Switch 12 Free-Standing Installation 12

Placing Units On Top of Each Other 13 Rack-Mount Installation 13 Montagesatz Anweisungen 14 Supplying Power 15 Stromversorgung 15 Checking for Correct Operation 16

3 Connecting to the 3Com Unified Switch 24 17

Before you begin 17 Connecting your computer to the switch 17 Using the setup wizard 18 Preparing the wireless network 20 Activating the Managed Access Points 21

4 Preparing the Managed Access Points 23

Preparing the 7760 Access Point 24 Preparing the 8760 Access Point 25 Resetting Access Points 26

5 Upgrade your Switch to the Latest Software 27

Loading Software into the Switch 27 Running a New Software Image 28

6 Restoring the Factory Default Settings 29

7 Changing the Password 30

8 Using SFP Transceivers 31

Approved SFP Transceivers 31 Inserting and using an SFP Transceiver 31 Removing an SFP Transceiver 32

9 Troubleshooting 33

10 Technical Information 35

Related Standards 35 Environmental 35 Physical 36 Electrical 36

11 Obtaining Support for your 3Com Product 37

Register Your Product to Gain Service Benefits 37 Solve Problems Online 37 Purchase Extended Warranty and Professional Services 38 Access Software Downloads 38 Contact Us 38

Telephone Technical Support and Repair 39

Introducing the 3Com Unified Gigabit Wireless PoE Switch 24

Figure 1 Front and Rear Views of the Unified Switch 24

1 & 2 3 56 7 8

11910

Ta bl e 1 Features of the Unified Switch 24

Reference Description

1 10/100/1000 Mbps Network Ports (1–24): These autonegotiating ports determine the speed and

duplex mode based on the connected device. Each port supports automatic MDI/MDIX detection and can be connected to a 10BASE-T, 100BASE-T, or 1000BASE-T device.

2 LED Port Status Indicators: Each Network Port has a corresponding status indicator (1 to 24) that

shows the status of the port’s network connection or PoE status (depending on the LED Status Select button).

Port Speed

■ Green steady: 1000 Mbps link is present.

■ Green flashing: 1000 Mbps traffic is present.

■ Amber steady: 10/100 Mbps link is present.

■ Amber flashing: 10/100 Mbps traffic is present.

■ Off: Link is not present

PoE Status

■ Green steady: PoE Power is being delivered to the port

■ Off: No power is being delivered.

8 Introducing the 3Com Unified Gigabit Wireless PoE Switch 24

Table 1 Features of the Unified Switch 24 (continued)

Reference Description

3 LED Status Select Button: This button sets the function of the Port LED indicators. When the button

is in the out position, the port LEDs show the port speed (see #2 above). When the button is pressed in, the port LEDs show the PoE status.

4 SFP Module Slots (21–24): The four Small Form Factor Pluggable (SFP) transceiver slots allow you to

install an SFP transceiver (purchased separately). These ports support fiber Gigabit Ethernet short-wave (SX) and long-wave (LX) SFP transceivers in any combination.

When an SFP module is installed in a slot and is active, the associated RJ-45 port (21 to 24) of the same number is disabled.

5 SFP Module Status Indicator: The four SFP status LED indicators show the state of the SFP module

ports (21 to 24; see #4).

■ Green: An SFP fiber module is present.

■ Off: No fiber module is present.

When an SFP module is present, the fiber port activity is indicated by the corresponding LED over the RJ-45 port (21 to 24):

■ Green steady: Fiber link is present.

■ Green flashing: Fiber link traffic is present.

■ Off: Link is not present

6 Fan Indicator: Shows the status of the internal fans.

Green steady: All fans are functioning properly. Amber steady: The switch is too hot. Amber flashing: One or more fans have failed

7 System Indicator: Shows the overall status of the switch.

■ Green steady: The switch is powered-up and operating normally.

■ Green flashing: The switch is undergoing self test, initialization, or downloading.

■ Amber steady: The switch has detected a hardware malfunction such as temperature, fan, or

voltage.

■ Off: No power. The switch is off.

8 Console Port: Allows you to connect a terminal and perform out-of-band management. The default

communications settings are 19200

bps, 8 data bits, no Parity, 1 stop bit.

9 Reset Button: Use the reset button to restore the switch to its factory defaults. See “Restoring the

Factory Default Settings” on page 29.

10 AC Power Input: Accepts 100–240 Vac, 50/60 Hz input power. The switch automatically adjusts to

the input voltage.

11 Feet: These are self-adhesive pads. You do not need to install them if you are rack-mounting the

switch.

Overview of the Unified Gigabit Wireless PoE Switch 24 9

WARNING: The Network Ports 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. Connect only 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.

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.

WARNHINWEIS: RJ-45-Porte. Diese Porte sind geschützte Datensteckdosen. Sie dürfen weder wie normale traditionelle Telefonsteckdosen noch für 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.

Overview of the Unified Gigabit Wireless PoE Switch

The 3Com® Unified Gigabit Wireless PoE Switch 24 is a versatile, easy-to-use unified switch. It is shipped ready for use, and no configuration is necessary for operation as a basic Layer switch. Additional features such as wireless can be configured easily using the Web-based user interface and setup wizard. Support for PoE and voice auto-prioritization makes the Unified Switch

24 a perfect starting

point for IP telephony solutions.

Unified Switching A unified switch is an all-in-one, fully-managed Ethernet switch

combining gigabit, wireless, and PoE connectivity in a single platform. The Unified Switch

24 supports both wired Ethernet switching and

centralized control for up to 24 wireless access points.

2 Gigabit PoE

10 Introducing the 3Com Unified Gigabit Wireless PoE Switch 24

Wired Features The switch has 24 shielded RJ-45, 10/100/1000 Mbps auto-negotiating

ports and four Small Form Factor Pluggable (SFP) transceiver slots on the front panel.

The four SFP ports support fiber Gigabit Ethernet short-wave (SX) and long-wave (LX) SFP transceivers in any combination. This offers you the flexibility of using SFP transceivers to provide connectivity between the switch and a 1000

Mbps core network.

When an SFP port is in operation, the corresponding 10/100/1000BASE-T port (21 to 24) is disabled.

Power over Ethernet

(PoE) Features

The switch can provide Power over Ethernet (PoE) to 802.3af compliant devices over a Category up to 15.4

Watts of PoE to each of the 24 gigabit ports simultaneously.

5 or better Ethernet cable. The switch can supply

PoE (802.3af) is a self-configuring protocol. When you plug an 802.3af device into one of the gigabit ports on the switch, the switch will supply the required power to the device.

Wireless Features The 3Com Unified Switch 24 provides centralized control for up to 24

3Com 7760 or 8760 Access Points. Key wireless features include:

■ Enterprise-grade WPA2/AES encryption

■ 802.1X authentication

■ Centralized control for wireless security profiles

■ Fast roaming

■ Rogue AP detection and mitigation

■ Multiple SSIDs per radio

■ Traffic prioritization

■ Load balancing

Installing the 3Com Unified Switch 24

Checking the Package Contents

Choosing a Suitable Location

The Unified Switch 24 package includes the following items:

■ One 3Com Unified Gigabit Wireless PoE Switch 24 unit

■ One power cord

■ Four standard height, self-adhesive rubber pads

■ One mounting kit

■ One warranty flyer and one safety flyer

■ This Quick Start Guide

If any of the above items are damaged or missing, please contact your network supplier immediately.

WARNING: Before installing this switch, please read the safety flyer included with the unit.

GEFAHR: Lesen Sie bitte vor Installation des Switch das diesem Gerät beiliegende Sicherheitsblatt durch.

The switch can be free-standing (see “Free-Standing Installation” on page 12), or it can be mounted in a 19-inch equipment rack using the supplied mounting kit (see “Rack-Mount Installation” on page 13). When deciding where to position the switch, ensure that:

■ It is accessible and cables can be connected easily.

■ Cabling is away from sources of electrical noise. These include elevator

shafts, microwave ovens, and air-conditioning units. Electromagnetic

fields can interfere with the signals on copper cabling and introduce

errors, and, consequently, slow down your network.

■ Water or moisture cannot enter the case of the unit.

12 Installing the 3Com Unified Switch 24

■ Air flow around the unit and through the vents on the side of the case

is not restricted. 3Com recommends that you provide a minimum of

mm (1 in.) clearance.

■ The air is as free of dust as possible.

■ Temperature operating limits are not likely to be exceeded. 3Com

recommends that you install the switch in a clean, air conditioned environment.

When installing network equipment, it is always good practice to wear an antistatic wrist strap that is connected to a ground point. If one is not available, try to keep in contact with a grounded rack and avoid touching the unit's ports and connectors. Static discharge can cause reliability problems in your equipment.

Aufstellen des Switch

Free-Standing Installation

Bei der Entscheidung wo Sie den Switch positionieren, stellen Sie sicher das:

■ Der Switch zugänglich ist und die Kabel leicht angeschlossen werden

können.

■ Die Kabel nicht in der nähe von elektrischen Störquellen befinden. Das

schließt Aufzugsschächte, Mikrowellen und Klimaanlagen ein. Elektromagnetische Felder können die Signale in den Kupferleitungen stören, und Fehler verursachen, was die Verlangsamung Ihres Netzwerkes zur Folge haben kann.

■ Weder Wasser noch Feuchtigkeit in das Gehäuse eindringen kann.

■ Die Luftzirkulation um den Switch und durch die Öffnungen des

Gehäuses nicht behindert wird. 3Com empfiehlt das Sie 25mm (1 Inch) Zwischenraum sicherstellen.

■ Die Luft so frei wie möglich von Staub ist.

■ Es unwahrscheinlich ist das die Betriebstemperatur überschritten wird.

3Com empfiehlt das Sie den Switch in einer sauberen, klimatisierten Umgebung installieren.

Place the switch on a stable, flat surface where it is not likely to be disturbed. Do not place objects on top of the switch or on top of a stack of switches. When locating the unit, you should take note of the guidelines given in

“Choosing a Suitable Location” on page 11.

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