Manuel d'utilisation / d'entretien du produit 3CRWE776075 du fabricant 3Com
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3Com ® Unified Gigabit Wir eless PoE Switch 24 Quick Start Guide Kurzanleitung 3CRUS2475 Copyright ® 2006 3Com Corporation. All righ ts reserved. www .
About this Guide This guide is intended for use by th ose responsible for installing and setting up network equipment; consequ ently , it assumes a basic working knowledge of LANs (local area netw orks) and WLANs (wir eless local ar ea networks).
3 Get the latest documentation and softwar e for your 3Com switch Thank you f or purchasing a 3Co m ® Unified Gigabit W ireless PoE Switch 24. As par t of our commitment to help you get the most ou t of your 3Com network equipment, we offer updated documentation and software on our website.
4 Get the latest documentation an d software for your 3Com switch.
5 Contents About this Guide 2 Get the latest documentation and softwar e for your 3Com switch 3 1 Introducing the 3Com Unified Gigabit Wireless PoE Switch 24 7 Overview of the Unified Gigabit W ireles.
6 4 Pr eparing 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 Sof.
7 1 Intr oducing the 3Com Unified Gigabit Wir eless PoE Switch 24 Figure 1 Fr ont and Rear Views of the Unified Switch 24 1 & 2 3 5 6 7 8 4 11 9 1 0 Ta b l e 1 Features of the Unified Switch 24 Re.
8 Introducing the 3Com Unified Gigabit Wireles s PoE Switch 24 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 po rt speed (see #2 a bove). Wh en the button is pre ssed in, the port LEDs show the PoE status.
Overview of the Unified Gi gabit Wireless PoE Switch 24 9 WAR NI N G : The Ne twork Ports are shield ed RJ-45 data sock ets. They cannot be used as standard traditi onal telephone sockets, or to connect the unit to a traditional PBX or public telephon e network.
10 Introducing the 3Com Unified Gigabit Wireles s PoE Switch 24 Wired Featur es The switch has 24 shielded RJ-45, 10/100/1000 Mbps auto-nego tiating ports and four Small Form Factor Plu ggable (SFP) transceiver slots on the front panel.
11 2 Installing the 3Com Unified Switch 24 Checking the Package Contents The Unified Switch 24 package includes th e following items: ■ One 3Com Unified Gigabit Wireless PoE Switch 24 unit ■ One p.
12 Installing the 3Co m Unified Switch 24 ■ Air flow around the unit and through the vents on the side o f the case is not restricted. 3Com r ecommends that you provide a minimum of 25 mm (1 in.) clearance. ■ The air is as free of dust as possible.
Rack-Mount Installation 13 If you are installing the switch in a free-standing stack with other 3Com equipment, arrange the smaller units above the larger ones.
14 Installing the 3Co m Unified Switch 24 Figure 2 Attaching Rack-Mount Har dware Montagesatz Anweisungen Der Switch wird mit zwei Halterungen und vier Schrauben geliefert. Diese werde für den Einbau in einen Baug ruppenträger benutzt. Bei der Montage der Baugruppe beachten Si e die Anweisungen aus “Aufstellen des Switch“.
Supplying Power 15 Supplying Power Ensure that the pow er input to your system is clean and free from sags and surges to avoid unforeseen network outages.
16 Installing the 3Co m Unified Switch 24 Checking for Correct Operation After you power -on the switch, it aut omatically performs a power -on self-test (POST). During the POST , the System LED on the front panel of the switch flashes green. When the POST is complete, the Syst em LED tur ns green.
17 3 Connecting to the 3Com Unified Switch 24 This section describes how to connect to the 3Com ® Unified Switch 24 and interact with the Web-based user interface. T he user interface al lows you to control the operation of the switch and configure its features.
18 Connecting to the 3Com Unified Switch 24 CAUTION: Do not co nnect any network cable to the Console port on th e switch. Connect only to the Ethernet ports. 3 Ensure that your computer is on the same su bnet as the sw itch. NOTE: The switch’ s default IP addres s is 169.
Using the setup wizard 19 5 Use the Next button to access the IP Co nfiguration page an d choose either Static or DHCP addressing. For most installations, 3Com recomme nds that you configure the switch with a static IP address. This makes management simpler and more reliable, as it eliminates the risk of the switch’ s IP address changing.
20 Connecting to the 3Com Unified Switch 24 CAUTION: When you make co nfiguration changes to the switch, you must select Save Configuration to store your settings to the startup configuration. If you do not select Save Configuration , any modified settings will be lost the next time the switch is restarted.
Activating the Managed Access Points 21 T o prepar e your wir eless network follow these steps: 1 Connect the DHCP server to a port on the Unified Switch 24. Make sure that the DHCP server is on the sa me IP subnet and is u sing the same subnet mask as IP configuration of the switch.
22 Connecting to the 3Com Unified Switch 24.
23 4 Pr eparing the Managed Access Points The 3Com ® Unified Switch 24 suppor ts these 3Com access points: ■ 3Com Wi reless 7760 11a/b/g PoE Access Point (3CR WE776075) ■ 3Com Wi reless 8760 Dual.
24 Preparing the Managed Access Points Preparing the 7760 Access Point If you are not familiar with accessing the 3Com 7760 Web interface, refer to the 77 60 Access Point Quick St art Guide . 1 Log on to the access point Web interface. 2 Check the serial n umber on the b ack of the access point.
Preparing the 8760 Access Point 25 Preparing the 8760 Access Point If you are not familiar with accessing the 3Com 8760 Web interface, refer to the 8760 Access Point Quick St art Guide . 1 Log on to the access point Web interface. 2 Check the serial n umber on the b ack of the access point.
26 Preparing the Managed Access Points Managed mode can only be discovered and managed by the 3Com Unified Switch 24 . T o return the access point to the default Stand -alone mode, refer to “Resetting A ccess Points” below .
27 5 Upgrade your Switch to the Latest Softwar e This section descr ibes how to u pgrade your 3Com ® Unified Switch 24 to the latest software. The latest software for your switch can be obtained by visiting www .3Com.com, selecting Support & Downloads then Downloads & Drivers and entering the model numbe r ( 3CRUS2475 ).
28 Upgrade your Switch to the Latest Software Running a New Software Image This sections describes how to run sof tware that you have uploaded to the switch. T o put the software image into your switch, se e “Loading Software into the Switch” on page 27 .
29 6 Restoring the Factory Default Settings CAUTION: Resetting the switch to factor y defaults will erase all your settings. Y ou will need to reconfigure all settings. T o re set the switch to factory defaults: 1 Unplug the power cord fr om the back of the unit.
30 Changing the Password 7 Changing the Passwor d T o protect your 3Com ® Unified Switch 24 fr om unauthor ized access, you should change the default password as soon as possible. T o change the password: 1 Log onto the switch. ■ The default user name is admin .
31 8 Using SFP T ransceivers This sections des cribes how to insert an d remove an SFP transceiver from an SFP slot. SFP transceivers are hot-insertabl e and hot-swappab le. Y ou can remove them from and insert them into any SFP port without having to power -off the switch.
32 Using SFP Transceivers Figure 3 Inserting the SFP T ransceiver 3 Check the SFP Module Status LEDs on the front of the switch. The corresponding LED will light to indicate the SFP module is present. 4 Remove the plastic protective cover , if fitted.
33 9 T r oubleshooting For complete troubleshooting information please refer to your User' s Guide or visit 3Com’ s World Wide Web site: http://www .3Com.com. Here ar e some common pr oblems that can occur . Forgotten Password If you forget the password to the Web interface, you will need to reset the switch to factory defaults.
34 Troubleshooting The Port Status LED is on, but network performance is poor There may be a full-duplex / half-duplex mismat ch between t he switch and a connected device.
35 10 T echnical Information Related Standards The 3Com ® Unified Gigabit W ireless PoE Switch 24 has been designed to the following standards: Envir onmental Function IEEE 802.3 (Ethernet, 10Base-T), IEEE 802.3u (Fast Ethernet, 100Base-TX), IEEE 802.
36 Technical Information Physical Electrical Width 44.0 cm (17.3 in.) Length 41.5 cm (16.3 in.) Height 4.4 cm (1.75 in.) or 1U. Weight 5.9 kg (13.0 lb) Mounting Free-standing, or 19 in.
37 11 Obtaining Support for your 3Com Pr oduct 3Com offers pr oduct registration, ca se management, and r epair services through eSuppor t.3Com.com . Y ou must have a user name and password to access these services, which are described in this appendix.
38 Obtaining Support for your 3Com Product Purchase Extended W arranty and Professional Services T o enhanc e respon se times or exte nd your warrant y benefits, you can purchase value-added services such as 24x7 telephone technical support, software upgrades, on-site assistance, or advanced har dware replacement.
Contact Us 39 T elephone T echnical Support and Repair T o obtain telephone support as part of your warranty and other service benefits, you must first register your pr oduct at: http://eSupport.
40 Obtaining Support for your 3Com Product From the following countries, call the appropriate number: Austria Belgium Denmark Finland France Germany Hungary Ireland Israel Italy 0800 297 468 0800 7142.
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté 3Com 3CRWE776075 c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du 3Com 3CRWE776075 - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation 3Com 3CRWE776075, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le 3Com 3CRWE776075 va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le 3Com 3CRWE776075, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du 3Com 3CRWE776075.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le 3Com 3CRWE776075. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei 3Com 3CRWE776075 ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
