Manuale d’uso / di manutenzione del prodotto Hub del fabbricante 3Com
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Of ficeConnect ® Dual Speed Hub 8 User Guide (3C16750A) 3C 1675 0 _b oo kle t. bo ok Pa ge i Tue s day , J uly 1 3, 19 99 11 : 18 A M.
3Com Corporati on ■ 5 400 Bayfront Pl aza ■ Santa Clara , California ■ 95052-8145 Copyri ght © 1 999, 3Com T ec hnolog i es. All righ ts reserve d.
3 Intr oducti on 5 Crea ting your Network 6 Dual Speed Hu b 8—F ront 6 Dual Spee d Hub 8—Re ar 7 Be fo re Y ou St ar t 8 Wor kstati on Connections 8 T wi s t ed Pa i r (TP ) C a bl es 8 Hub Connec.
4 3C1 6750_ bo ok let .boo k Pag e 4 Tue s day , Jul y 13, 19 99 11: 18 AM.
5 I NTRODUCTI O N Welcome to the world of networking with 3Com ® . In the modern business env ir onment, communicati on and sharing information i s crucia l. Computer networks have pr oved to be one of the fastes t modes of communication but , until re ce ntly , only larg e businesses coul d af f or d the net w orking advantage.
6 C RE A T I N G YOUR N ETWO RK Dual Speed Hub 8— Front OfficeConnect Dual Speed Hub 8 Netwo rk Utilization Alert Power 1 2 3 4 5 6 7 8 Port Status Green = OK Flash = Partitioned 1% 2% 3% 6% 12% 25% 50% 80% 100M 10M 100M 10M 100M 10M Collision Alert LED orange Off w hen the Hub is operating correctly .
7 Dual Speed Hub 8—R ear Power Adapter socket Only use the power adapter that is supp lied with this OfficeConnect Dual Speed Hub 8. Do not use any other adapter . Eight 10/100BASE-TX ports Use suitable TP cable wit h RJ-45 connectors. Y ou can connect the Hub to any workstation or other equipment that has a 10BASE-T or 100BASE-TX port.
8 Before Y o u Start Y our OfficeConnec t hub comes with: ■ One power adapter for use wit h the Off iceConnect hub. ■ A Pr oduct Registr ation car d for you t o fill out and r etur n. ■ Four rubber feet. ■ A st acki ng cl ip. ■ T wo unit labels and eight ca ble ties.
9 St ackin g the Unit s T oge ther The Ru bber F eet The four self-adhesi ve r ubber feet preve nt y our hub f r om moving ar ound on your desk. On ly stic k the fe et to the marke d areas at each cor ner of the underside of your hub if you intend t o place t he unit dir ectly on t op of the desk.
10 Po si ti on in g Y o ur H ub When install ing your Of ficeConnect hub, ens ure: ■ It i s out of dir ect sunlight and away fr om sourc es of heat. ■ Cabling is aw ay f rom power l ines, fluor es cent li ghting fixtur es, and s our ces of electric al noise suc h as radi os , trans mitt er s and br oadband am plifiers.
11 Conne cting Work stations and Othe r Equip ment to Y o ur H ub WAR NING: Please read the ‘Import ant Safe ty Information’ s ection befor e you start . WARNHINWEIS: Bitte les en Sie den Absc hnitt ‘Wichtige Sicherhe itsinformatione n’ sorgfältig dur ch, bevor Sie das Gerät einschal ten.
12 3Com r ecommends tha t the c able (B) between t he Fa s t Ethernet hubs is no longer than 5m (16.4ft). This allows the maximum hub- to-workstat ion cable lengt h (A or C) of 100m (328ft) t o be used, as s hown in F igure 3.
13 Ma kin g the Conn ecti on to A n othe r Hu b Y ou c an connec t a 10BASE-T , 100BASE- TX, or another 10/100BASE-TX O fficeConnect hub to any port on the Dual Speed H ub 8.
14 P RO B L E M S OLVIN G The Off iceConnect Hub has been des igned to aid you when detect ing and solving possible pr oblems with your network. These proble ms are rarely serious ; the cause i s usually a disconne c ted or da maged cable, or incorr ect configuration.
15 Port Status LED flashing. The port is par titioned, pr obably due to a network loop. Ex amine your c onnec ti ons and re move t he loop. E ach piece of equipment needs only one connection to y our Hub. Link between t he Hub an d anot her OfficeConnect hub not working .
16 N ETWORKI NG T ERM INOLO GY A Netw ork is a collec tion of workst ations (for ex ample, IBM-compat ible PCs) and other equipment (for example, printers ), connected for th e purpose of exchanging information or sharing r esources. Networks var y i n size, some ar e wit hin a si ngle room, other s span c ont in ents.
17 D IMEN SIONS AND S TAND ARDS Dim ensions a nd Op erating Cond itions Stan da rds Functiona l: ISO 8802/3 I EEE 802.3 Safet y : UL 1950, EN 60950 CSA 22.
18 E NVIR ONME NTAL S TATEM ENT S It i s the policy of 3C om Corporation t o be environ mentally- f riendly in all operat ions. T o uphold our poli c y , w e ar e committed t o: ■ Establis hing envir onmental per formance standa rds t hat comply wi th national leg islation and regul ations.
19 I MPO RTANT S AF ETY I NF ORM ATIO N WARNIN G: Warnings contain directions that you must fo llow for your pers onal safety . Follow all dire ctions ca reful ly .
20 W ICHT IGE S ICHER HE ITSHI NWEI SE WARNHINWEIS: Warnhinweis e enthalte n Anweisungen, die Sie z u Ihrer ei genen Sicherhe it befolge n müssen. Alle Anweisungen sind sorgfäl tig zu befolge n.
21 C ONSI GN ES IM PO RT ANTES DE SÉ CU RI TÉ A V ERTISSEMENT : Les av ertisseme nt s pr ésentent de s consignes que vous devez r es pecter pour garantir votre séc urité pers onnelle.
22 T ECHNI CAL S UPP ORT 3Com pr ovides easy a ccess to t echnical support inf ormation through a variet y of services. This section describes these serv ices. Information contained in t his sec t ion is correct at time of publicat ion. For the mos t rece nt inf ormation, 3Com r ecommends t hat you access the 3Com C orporation World Wide Web sit e.
23 Suppo rt from Y our Net work S upp lier If you r equire additi onal assis t ance, contact your network supplier . Many suppl iers ar e authoriz ed 3Com servic e partner s who are qualifie d to provide a variet y of se r vices, including ne t wor k planning, installa tion, har dware mainte nance, application t raining, and support servic es.
24 Here is a list of worldwide techni cal telephone support num- bers: Count ry T eleph one Num ber Coun try T ele phone N umber Asia, Pacif ic Rim Australia Hong Kong India Indo nesia Japan Malaysia .
25 Lat i n Am e ric a Ar gentin a Bra zi l Chile Col om b ia A T&T + 800 66 6 5065 0800 1 3 3 266 1230 0 20 0645 98012 212 7 Mex ico Per u Pu er to Ri c o Ve n e z u e l a 01 800 CARE ( 01 800 227.
26 Retu rni ng Products for Repair Befor e you send a pr oduct directly t o 3Com for re pair , you must fi rst ob tain a Retur n M ateri al Auth orizati on (RM A) number . Products sent to 3Com wit hout authori z ation numbers wi ll be r eturned to the s ender unopened, a t the sender’ s ex pense.
27 3Com Corp orat ion L IM ITED W ARRANTY 3Com Of ficeConnect Dual Speed Hub 8 The d uration of th e warra nty for t he Offi ceC onnect Dua l Speed H ub 8 (3C1675 0A) i s lifeti me, incl uding t he pow er adap ter.
28 marke d on the outsi de of the pack age, a nd sent prep aid and pa ckage d appr opriately f or saf e ship ment, and it is recomm end ed that they be i nsure d or sent by a me thod t hat provi des f or tra cking of t he pack age.
29 D ISCLA IM ER Some countr ies, s tates, or province s do not allo w the excl usion or limi tatio n of impli ed war ranties or the limi tation o f incid ental or c on sequenti al damag es fo r certa.
30 E LECTR OMAGNETIC C OMPA TIB IL ITY FCC S TATEMEN T This equip ment has be en t ested and f ound to com ply wit h the limi ts for a C lass B digita l device , pursu ant to P art 15 of the FCC Rul es, and the C anadian Departme nt of Communi cati ons Equi pment Standa rds en title d, “Digi tal Appara tus,” IC ES-003.
31 W all mounti ng screw hole guide 142m m (5.6in.) 3C1 6750_ bo ok let .boo k Pag e 31 Tu esda y, Jul y 13, 1 999 11: 1 8 AM.
Part No. DUA 16 75-0AA A03 Publ is hed Jun e 19 99 32 3C1 6750_ bo ok let .boo k Pag e 32 Tu esda y, Jul y 13, 1 999 11: 1 8 AM.
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 Hub 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 Hub - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso 3Com Hub imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul 3Com Hub ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il 3Com Hub, 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 Hub.
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 Hub. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo 3Com Hub 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.
