Manuale d’uso / di manutenzione del prodotto Gigabit Switch 8 del fabbricante 3Com
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Of ficeConnect ® Ethe r ne t Hu b 4, 4C, 8 , 8 C User Guid e (3C1 670 4A, 3C 16 70 3A, 3C 16 700 A, 3C16 701 A) 3C 1670 0 .bo ok Pa ge i Tu es day , J uly 1 3, 19 9 9 9: 5 9 A M.
3Com Corporati on ■ 5 400 Bayfr ont Plaza ■ Santa Clara , Cal ifornia ■ 95052-8145 Copyri ght © 1 999, 3Com T ec hnolog i es. All righ ts reserv ed.
3 Intr odu ction 5 Crea t ing your Networ k 6 What Els e Do I Need? 6 Wor kstat ion Connec tions 6 T ran sceiv er Connect ions 6 Hub Connect i ons 7 10BASE- 2 7 10BASE- T 7 T w i st ed Pa ir (TP ) Ca .
4 Consign es i mpor tantes de séc urité 29 T e chnical Suppor t 30 Onl ine T echnical Servi ces 30 Wo rld W ide We b Site 30 3Com Knowl edgebas e Web Service s 30 Suppor t fro m Y our Network Suppl .
5 I NTRODUCTI O N Wel come to t he world of networking with 3Com ® . In the modern business env ir onment, com munication and sh aring information i s crucial. Comput er networks have pr ov ed t o be one of the fast est modes of communica tion but, until re cently , only lar ge busine sses could affor d the advantage of networking .
6 C RE AT I N G YOUR N ETW ORK What Els e Do I Need ? Y our OfficeConnec t hub comes w ith: ■ One power adapter for us e wit h the Of ficeConne ct hub. ■ A Pr oduc t Reg istration card f or you t o fill out and r eturn. ■ Four rubber feet. ■ A st acki ng cl ip.
7 Hu b Co nn ect ions Depending on what ports your hub has , you can use eith er 10BASE-T or 10BASE-2 to connect your hubs toge ther: ■ With 10BASE-2 you ca n connect up to 30 hubs on a single s egment, leaving a ll of the 10BA SE-T port s fr ee. ■ With 10BASE-T you c a n connect up t o f our hubs in serie s.
8 St acki ng the Un it s T oge ther The Rub ber Fe et The f our self-a dhesive rubber feet pr event your hub f r om moving ar ound on your des k. Only stic k the feet t o the marke d ar eas at eac h cor ner of the unde rside of y our hub if you int end to place the unit di rectly on t op of the de sk.
9 Po s i ti oni n g Y o ur H ub When installi ng y our Offi ceConnect hub, ens ure: ■ It is out of direct sunlight a nd away fr om sources of heat. ■ Cabling is away f rom power lines , fluor escent lighti ng fixtur es, and sour ces of el ectric al noise such as radios , transmit ters and br oadband ampl ifiers.
10 T HE O FF IC E C ONNE CT E TH E R NE T H UB 4 AND 4C Et herne t Hub 4 and 4C—F ro nt 12 3 4 Green=AUI off=COAX 1% 2% 3% 6% 12% 25% 50% 80% Port Status Netwo rk Utilizatio n Partitioned AUI/COAX A.
11 Ether ne t Hub 4 and 4C— Rear Power Adapter socket Only use the power adapter that i s supplied with this OfficeConnect hub. Do not use any other adapter . 10BASE-2 port (Hub 4C only) Can be used to connect your hub to other OfficeConnect hubs and equipment with 10BASE-2 cabli ng.
12 Conne cting Workstat ions a nd Othe r Equip ment to Y o ur Hub WAR NING: Please r ead the ‘Import ant Sa fety Information’ sect ion before you start. WARNHINWEIS: Bitt e les en Sie de n Abschnitt ‘Wichtige Siche rheitsinforma tionen’ sor gfältig durch, bevor Sie das Gerät einschal t en.
13 C onne ctin g Hu bs U si ng 10 BA SE- 2 Connect a 10BASE-2 ‘Y’ piece t o eac h of your hubs (Hub 4C only). Connec t the ‘Y’ pi ec es w ith 10BASE-2 cable to for m a singl e segment, as shown in Figur e 4. Reme mber to term ina te the tw o free ends of the seg me nt by fittin g terminators (end pi eces).
14 Conn e ctin g Hub s Us in g 10 BAS E-T Y ou can connect hubs together with 10BASE-T in a number of ways , but for s implicity w e r ecommend the foll ow ing method, as show n in Figur e 5: 1 Start ing fr om the bot tom, connect the por t 4 of th e lower hub t o port 3 of t he hub imme diately above.
15 P RO B L E M S OL VI NG FOR TH E H UB 4 AND 4C The Of ficeConnect hub has been des igned to a id you when detecti ng and solv ing possible pr oblems with your networ k. These pr oblems ar e ra rel y serious , the cause is us ually a disconnect ed or da maged cable, or incorr ect configuration.
16 Port Status LED not lit for a 10BASE-T p ort that has a connection. There i s a pr oblem with t his conne ction. Check that you a re using a straight-thr ough 10BASE-T cable which is pr operly connected a t bot h ends, and i s not damaged. If the cable is connected to port 4, ensure that the Uplink/ Normal switch is set to Normal (out).
17 T HE O FF IC E C ONNE CT E TH E R NE T H UB 8 AN D 8C Ether ne t Hub 8 and 8C— Front Alert 12 3 45678 1 % 2 % 3 % 6 % 1 2 % 2 5 % 5 0 % 8 0 % OfficeConnect Ethernet Hub 8C Port Status Netw ork Ut.
18 Ether net Hub 8 and 8C— Rear Power Adapter socket Only use the power adapter that i s supplied with thi s OfficeConnect hub. Do not use any other adapter . 10BASE-2 port (Hub 8C only) Can be used to connect your hub to other OfficeConnect hubs and equipment with 10BASE-2 cabli ng.
19 Co nnecting Work stations and Othe r Equip ment to Y o ur Hub WAR NING: Please read t he ‘ Important Sa f ety Information’ s ection bef ore you s tart. WARNHINWEIS: Bitte les en Sie de n Abschnitt ‘Wichtige Sicherhe itsi nformat ionen’ s orgfältig durch, bevor Sie das Gerät einschal t en.
20 Conn e ctin g Hub s Us in g 10 BAS E-2 Connect a 10BASE-2 ‘Y’ pie ce to each of your hubs (Hub 8C only). Connect the ‘Y’ pi ec es wit h 10BASE-2 c able to for m a singl e segment, as shown in Figur e 7. Reme mber to term inat e the tw o free ends of the seg me nt by fittin g terminators (end pieces).
21 C onne ctin g Hu bs U si ng 10 BA SE- T Y ou can connect hubs together with 10BASE- T in a number of ways , but for si mplicity w e r ecommend the foll owing method, a s shown in F igure 8: 1 Start ing fr om the bot tom, connec t the por t 8 of t he lower hub t o port 7 of the hub immediately above.
22 P RO B L E M S OLV ING FOR THE H UB 8 AND 8C The Of ficeConnect hub has be en designed t o aid you when detect ing and solving possible proble ms with your network. These proble m s are rare ly serious, the cause is usual ly a disconne cted or damaged c able, or incorr ect configuration.
23 Port Status LED not lit for a 10BASE-T port that has a connection. There i s a pr oblem wi th this connect ion. Check t hat you are us ing a strai ght -thr ough 10BA SE-T c able which is pr operly connec ted at b oth ends, and is not damaged.
24 N ETWORKI NG T ERM INOLO GY A Net work is a collec tion of workstations (for ex ample, IBM-compat ible per sonal computers ) and other equipme nt (for ex ample, pri nters), connec ted for t he purpose of exchangi ng informat ion. Networks vary i n size, some ar e withi n a single room, ot hers span continents.
25 D IMEN SION S AND S TAND AR DS Dim ensions and Op erating Cond itions Standa r ds Functiona l: ISO 8802/3 I EEE 802.3 Safet y: UL 1950, EN 60950 CSA 22.
26 E NVIR ONMENTA L S TATEM ENT S It i s the polic y of 3Com Cor poration to be environ mentally-friendly in all operations. T o uphold our poli cy , we ar e committed t o: ■ Establis hing envir onmental per formance standard s that comply w ith nationa l legi slation and regulations .
27 I MPO RTANT S A FETY I NFO RM AT IO N WARNIN G: Warnings contain directions that y ou must fo llow for your personal s afety . Follow all dire ctions ca refu lly .
28 W ICHT IGE S ICHER HE ITSHI NWEIS E WARNHINWEIS: Warnhinweis e enthal ten Anweisungen, die Sie zu Ihr er ei genen Siche rheit befolge n müssen. All e A nweisungen sind sorgfäl tig zu befolge n.
29 C ONSI GN ES IM PO RT ANTES DE SÉ CU RI TÉ A VERTISSEMENT : Les aver tis sements prés entent de s consignes que vous devez respecter pour garantir votre séc urité per sonnell e.
30 T ECHNIC AL S UPPOR T 3Com pr ov i des ea sy acc ess t o technica l support inf ormation through a variet y of servic es. This section descr ibes these serv ices.
31 Suppo rt from Y our Net work Supp lier If you r equire addit ional as sista nce, contact your network supplier . Many suppl iers ar e authorized 3C om servic e partner s who ar e qualif ied t o provide a variety of service s, including ne twork planni ng, installa t ion, har dwa r e mainte nance, applic ation train ing, and support ser vices.
32 Here is a l ist of worldwide t echnical telephone s upport numbers: Count ry T el ephone Numbe r Coun try T ele phone Num ber Asia, Pacif ic Rim Australia Hon g Kong India Indo nesi a Japan Malaysi.
33 Lat i n Am e ric a Ar genti na Bra zi l Chile Col om b ia A T&T +800 666 5 065 0800 1 3 3266 1230 0 20 064 5 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 2273.
34 Retu rni ng Pr o ducts for Repair Befor e you se nd a pr oduct dire c tly to 3Com for repair , you must fi rst ob tain a Retur n M ateri al Au thorizati on (RM A) number . Products sent to 3C om without a uthorization numbers wi ll be returne d to the s ender unopened, at th e sender’ s ex pense.
35 3Co m Co rp or ati on Li m ite d W arra n ty 3Com Offic eConnect E t hernet Hu b 4, 4C, 8, 8C The d uration of the w arra nty for the Offi ceConne ct Etherne t Hub 4, 4C , 8, 8C (3C1670 4A, 3 C16703A, 3C16 700A, 3C1 6701A ) is li fetime, i nclu ding th e power ada p ter .
36 pre-a uthorize d by 3C om with a Ret urn Mat erial Aut hori zation (RMA) numbe r 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.
37 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.
38 E LECTR OMAGNETIC C OM PA TI BI LITY FCC S TATEM ENT 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 Depa rtment of Communi cati ons Equi pment Sta ndards en title d, “Digi tal Appara tus,” IC ES-003.
39 W al l mounting screw hole guide 150 mm (5.9 in) 3C 1670 0 .bo ok Pa ge 39 T u esda y , J uly 1 3, 19 9 9 9:5 9 AM.
Part No. DUA 16 70-0AA A04 Publ ished June 19 99 40 3C 1670 0 .bo ok Pa ge 40 T u esda y , J uly 1 3, 19 9 9 9:5 9 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 Gigabit Switch 8 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 Gigabit Switch 8 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso 3Com Gigabit Switch 8 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul 3Com Gigabit Switch 8 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il 3Com Gigabit Switch 8, 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 Gigabit Switch 8.
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 Gigabit Switch 8. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo 3Com Gigabit Switch 8 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.
