3Com Unified Gigabit Wireless PoE Switch 24... Bedienungsanleitung
3Com®Unified Gigabit Wireless
PoE Switch 24
Quick Start Guide
Kurzanleitung
3CRUS2475
Copyright ® 2006 3Com Corporation. All rights reserved.
www.3Com.com
Part Number 10015246 Rev. AA
Published Se
p
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.
3
Get the latest documentation
and software for your
3Com switch
Thank you for purchasing a 3Com®Unified Gigabit Wireless PoE
Switch 24. As part of our commitment to help you get the most out of
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 24, point your web browser to:
www.3Com.com and select the “Support and Registration” link.
Please note that you must register your 3Com switch to receive software
upgrades. To register, point your web browser to eSupport.3Com.com.
4Get the latest documentation and software for your 3Com switch
5
Contents
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
6
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
7
1Introducing the
3Com Unified Gigabit
Wireless PoE Switch 24
Figure 1 Front and Rear Views of the Unified Switch 24
1& 2 3 5678
4
11910
Table 1 Features of the Unified Switch 24
Reference Description
110/100/1000 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.
2LED 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.
8Introducing the 3Com Unified Gigabit Wireless PoE Switch 24
3LED 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.
4SFP 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.
5SFP 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
6Fan 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
7System 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.
8Console 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.
9Reset 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.
Table 1 Features of the Unified Switch 24 (continued)
Reference Description
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 24
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 2 Gigabit PoE
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.
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 5 or better Ethernet cable. The switch can supply
up to 15.4 Watts of PoE to each of the 24 gigabit ports simultaneously.
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
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