Manuale d’uso / di manutenzione del prodotto 16 Plus del fabbricante 3Com
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OfficeConnect ® Du a l Speed Switch 5 plus (3C1 679 0) Du a l Speed Switch 8 plus (3C16791) User Guide Mar s.b ook Pag e 1 Wedn esda y, Oct ober 18 , 2000 2:22 PM Du a l Speed Switch 16 plus (3C1679 .
2 3Com Corporation ■ 5400 Bayf ront Plaz a ■ Santa Clara, Ca lifornia ■ 95052-814 5 Copyri ght © 2001, 3Com T echnol ogies. All righ ts reserved .
3 Introd uction 4 Creating y our Network 5 Dual Speed Switch 5 p lus—Front 5 Dual Speed Switch 8 p lus—Front 6 Dual Speed Switch 16 plu s—Front 7 Dual Spee d S witch 16 p lus—R ear 8 How the S.
4 I NTR ODUC TION Welcome to the world of networking with 3Com ® . In the modern business environme nt, communication and sharing information is crucial. Computer networks have proved to be one of t he fastest modes of communication but until recently , only large businesses could af ford the networking advantage.
5 C RE A T I N G YOUR N ETWOR K Dual Spee d Switch 5 p lus — Fron t.
6 Dual Spee d Switch 8 p lus — Fron t.
7 Dua l Spee d Switc h 16 p lus — Fr ont.
8 Dual Speed Swi tch 16 plus — Re ar Power Adapter socket Only use the power adapter that is supplied with this OfficeConnect Switch. Do not use any other adapter .
9 How the Switch Can Be Used Switching When a network of r epeater hubs is i n operation, any information that is sent by the workstations is passed around the whole network (regar dless of the destination of the information). This can result in a lot of unnecessary traffic that can slow the network down.
10 Connecting 10BASE-T and 1 00BASE-TX Networks The 10/100 ports can each be conne cted to either a 10BASE-T or 100BASE-TX ne twork. If y ou have both types of network, you ca n join them togethe r using the Switch allowing all your workstations to communicate.
11 Stacking the Un its T ogether The Rubber Feet The four self-adhesive rubber feet prevent your switch fr om moving around on your desk. Only stick the feet to the marked areas at each corner of the underside of your switch if you intend to pl ace the unit directly on top of the desk.
12 Positi onin g Y ou r Switch When installi ng your Switch, ensure: ■ It is out of direct sunlight and away from sources of heat. ■ Cabling is a way from power li nes, fluorescent lighting fixtures, and source s of electrical noise such as radios, transmitters and broadband amplifiers.
13 Connec ting W ork station s and Othe r Equi pment to Y our Swit ch WARNING: Please re ad the ‘Impor tant Saf ety Information’ section before you start. WARNHINWEIS: Bitte lesen Sie den A bschnitt ‘Wichtige Sicherheitsinformationen’ sorgfältig durch, bevor Sie das Gerät einschalten.
14 Checking Unit Connections When you have conne c ted all your units, power on the units and the Switch. The Port Status LEDs for the ports you have used on both the units and the Switch should be on.
15 P RO B L E M S OL VING The Switch has been de signed to aid you when detecting and solving possible problems with your network. These problems a re rare ly serious; the cause is usually a disconnected or damaged cable, or i ncorrect configuration.
16 Network loop — Examine your connections and remove the loop. Each piece of equipment needs only one connection to your Switch. Broadcast frames — Some pi eces of network equipment operate by sending out br oadcast frames regularly . Please refer to the documentati on that ac compani es the piece of network equipment.
17 N ETWORKING T ERMINOL OGY A Network is a collection of workstations (for example, IBM-compatible PCs) and other equipment (for e xample, printers), connected for the purpose of exchanging information or shari ng resources . Networks vary in size, some are within a single room, oth ers span continents.
18 Priority Queuing is the ability of a network t o give and maintain certain throughput levels for differe nt applications depending on the priority assigned to that application. At excessive loads a packet with a higher priority will take a greater pre cedence over a lower prioritised packet.
19 D IMENSI ONS AND S TAN DAR DS Dime nsio ns an d Operat ing C ondi tions Standards Functional: ISO 8802/3 IEEE 802.3, 802.3u Safety: UL 1950, EN 60950 CSA 22.
20 E NVIRONMENTAL S TA TEM ENT S It is the policy of 3Com Corpor ation to be environmentally-friendly in all operations. T o uphold our polic y , we are com mitted to : ■ Establishing envir onmental performance standards that comply with national legislation and regulations.
21 WARN IN G : Warnings contain di rections that you must follow for your personal safety . Follow all directions carefully . Y ou must read the following sa fety informa tion carefully before you install or remove the unit: ■ Exceptional care m ust be taken during installation and removal of the unit.
22 WARNHINWEIS: Warnhinweise enthalten Anweisungen, die Sie zu Ihrer eigenen Sicherheit befolgen m ü ssen. Alle Anweisungen sind sorgf ä lt ig zu befolgen.
23 A VERTISSEMENT : Les avertisse ments pr é sentent des consignes que vous devez respecter pour garantir votre s é curit é personnelle. V ous devez respecte r attentivement toutes les consignes.
24 3Com pr ovides easy access to technical support information through a va riety of services. This section describes these services. Information contained in this section is corre ct at time of publication. For the most recent information, 3Com recommends that you access the 3Com Corpora tion World W ide Web site.
25 Suppor t fr om Y our Networ k Supplie r If you require additional assistance, contact your network supplier . M any suppliers are authorized 3Com service partners who are qualified to provide a variety of services, including network planning, installation, har dware maintenance, application training, and support services.
26 Here is a list of worldwide technical telephone support num- bers. These numbers a re corr ect a t the time of publication. Refer to the 3Com W eb site for updated information. Country T elephone Nu mber Asia, Pacific Ri m Australi a Hong K ong India Indone sia Japan Ma la ysia New Zea land Pakis tan Philippines P .
27 Returnin g Produc ts for Repair Before you s end a product dir ectly to 3Com for repair , you must first obtain a Return Material Authorization (RMA) number . Products sent to 3Com without authorization numbers will be returned to t he sender unopened, at the sender ’ s expense.
28 3Com Corporation L IMITED W ARRANTY 3Com OfficeConnect Dual Speed Switch 5 plus, Switch 8 plus, Switch 16 plus The duration of the warranty fo r the OfficeConnect Dual Speed Switch 5 plus (3C16790 ), Switch 8 plus (3C16791) and Switc h 16 plus (3C16792) i s lifetime, including the power adapter.
29 W ARRANTI ES E XCLUSIVE IF A 3COM PRODUCT DO ES NOT OPERATE AS WARRANTED ABOVE, CUSTOMER'S SOLE REMEDY FOR BREACH OF THAT WARRANTY SHALL BE REPAIR, REPLACEMENT, OR REFUND OF THE PURCHASE PRICE PA ID, AT 3COM'S OPTION.
30 R EGULATO RY N OTICES FCC S TATEMENT This equip ment has been tested a nd found to comply with th e limits for a Class B digita l device, pursua nt to Part 15 of the FCC Rules, and the Canadian Depa rtment of Communicat ions Equipment Standar ds entitled, “ Digi tal Apparatus, ” ICES-00 3.
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Part No. DUA1679-0AAA 03 Published July 2001.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il 3Com 16 Plus è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del 3Com 16 Plus - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso 3Com 16 Plus imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul 3Com 16 Plus ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il 3Com 16 Plus, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del 3Com 16 Plus.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il 3Com 16 Plus. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo 3Com 16 Plus insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
