Manuale d’uso / di manutenzione del prodotto 3C16790 del fabbricante 3Com
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Of ficeConnect ® Dual Sp eed Sw itc h 5, Swi tch 8 User Gu ide ( 3C1679 0, 3C 16791 ) 3C 1673 4 _B oo kle t. bo ok P a ge i Mon d ay, Mar ch 12 , 20 01 1 :4 6 P M.
3Com Corporati on ■ 5400 Bayf ront Plaza ■ Sa nt a Cl ar a, Cal i fo r ni a ■ 95052-8145 Copyri ght © 2 001, 3C om T ec hnologies. All righ t s reserv ed.
3 Int rod uc tio n 4 Crea t ing your Networ k 4 Dual Spee d Switch 4 — Fr ont 5 Dual Spee d Switch 8 and Dual Spee d 16 — F ront 6 All Units — R ear 7 How the Switch Can Be Use d 8 Sw itch ing 8.
4 3C1 6734_ Bo okle t .boo k P ag e 4 Mon day, Marc h 12, 20 01 1: 46 PM.
4 I NTRODUCTI O N Welcome to the wor ld of networking with 3Com ® . In the modern business env ir onment, communica tion and shar ing information i s crucial. Computer networks hav e pr oved to be one of the fast est modes of communicati on but until re cently , only lar ge busine sses could af ford the networking advantage.
5 C RE A T I N G YOUR N ETWORK Dual Speed Sw i tch 5 — Fr o nt Power LED If the is lit ( ) the power supply to the Switch is present. Power LED green , Duplex LED ’ s If the Duplex LED is lit (yellow), the port is in full duplex mode. If the LED is off, the port is in half duplex mode.
6 Dual Speed Switch 8 — Fr ont Power LED If the is lit ( ) the power supply to the Switch is present. Power LED green , Duplex LED ’ s If the Duplex LED is lit (yellow), the port is in full duplex mode. If the LED is off, the port is in half duplex mode.
7 Dual Speed Sw i tch 8 — Rea r Power Adapter socket Only use the power adapter that is supplied with this OfficeConnect Switch. Do not use any other adapter .
8 How the Sw it ch Can Be Use d Swit chin g When a net work of r epeater hubs is in opera tion, any information tha t is se nt by the works tations is passed ar ound the w hole network (r egar dles s of the destinat ion of the in formation). This can r es ult in a lot of unneces sary traff ic t hat can s low the net work down.
9 Connect ing 10BASE-T an d 100BASE-TX Networks The 10/100 por ts can each be c onnected t o either a 10BASE-T or 100BASE- TX network. I f you have both types of network , y ou can j oin them together using the Sw itch allowing a ll your workstations to communicate.
10 Wor ksta tion C onnec tions T o conne ct workstations or other equ ipment (such as servers ) dir ectly to y our Switch, you need: 1 One 10BASE- T , 100BASE-TX or 10/100BASE-TX ada pter card for eac h works ta tion.
11 St acki ng the Un its T oge ther The Rub ber Fe et The f our self-a dhesive r ubber feet pr event your hub f rom moving ar ound on your desk. O nly stic k the feet to the marked ar eas at eac h cor ne r of the unde rside of y our hub if you intend t o place the unit di rectly on t op of the de sk.
12 Po s i ti oni n g Y o ur Swi tch When installi ng y our Switch, ens ure: ■ It is out of direct s unlight a nd away fr om s our ces of heat. ■ Cabling is away f rom power lines , fluore s cent lig ht ing fixtur es, and sour ces of el ectric al noise suc h as radios , transmit ters and br oadband ampl ifiers .
13 Conne cting Works tations and Othe r Equip ment t o Y our Swi tch WAR NING: Please r ead the ‘ I mpo rtant S afety Inform ati on ’ se c tion befor e you s tart. WARNHINWEIS: Bitte lesen Sie den A bschnitt ‘ Wichtige S icherheitsi nformationen ’ sorgf ä ltig durch, bevor Sie das Ger ä t einschal t e n.
14 Che cki ng U nit Conn ect i ons When you hav e connected a ll your unit s, power on the units a nd the Swi tch. The Po rt Statu s LEDs for the ports y ou have used on both the units and the Switch shoul d be on. If they are not , check your connections .
15 P RO B L E M S OLVING The Switc h has been des igned to aid you when detectin g and solv ing possible problems with you r network. The s e pr oblems ar e rarely serious ; the c ause is us ually a disconnected or damaged c able, or inc or rec t configurat ion.
16 frame s regula rly . Refe r to the docum enta tion that accompani es t he piece of network equi pment. If the A ler t LED is s till lit after r emoving al l of y our connections , ther e may be a pr oblem with y our Switch. Power it of f, wait about 5 seconds a nd then power it on.
17 N ETWORKING T ERM INOLO GY A Netw ork i s a collec tion of works tations (for ex ample, IBM-compati ble P C s ) and ot he r equipment (f or example, printers), connected fo r the purpos e of exchanging information or sharing resour ces. Networks vary in size, some ar e within a single r oom, others span contine nts.
18 Priority Queuing is the a bility of a ne twork to giv e and maintain c e rtain thr oughput levels for dif f erent applic ations depending on t he pri ority a ssigned to that applic ation. At exces sive loads a packe t with a higher prior ity wi ll take a gr eater pr ecedence over a low er prior itis ed packet.
19 D IMEN SION S AND S TAND ARDS Dim ensions a nd Op erating Cond itions Standa r ds Functiona l: ISO 8 802/3 IEEE 802. 3, 802.3u Safet y: UL 1950, EN 60950 CSA 22.
20 E NVIR ONME N TA L S TA TEM ENTS It i s the polic y of 3Com Corpor ation to be environ mentally-friendly in al l operations. T o uphold our poli cy , w e ar e commit ted to: ■ Establis hing envir onmental perf ormance standa rds that comply wi th nationa l legisl ation and regul ations.
21 I MPO RTANT S A FETY I NF ORM ATIO N WARNIN G : Warnings contain dir ections that y ou must fo llow for your personal s afety . Follow all dire c tions care fully .
22 W ICHT IGE S I C HERHE IT SHINWEI S E WARNHINWEIS: Warnhinweis e ent halte n Anweisungen, die Sie zu Ihr er ei genen Siche rheit befolge n m ü ssen.
23 A VERTISSEMENT : L es av ertiss eme nts pr é sentent des consigne s que vous de vez respecter pour garant ir votre s é cur it é personnelle. V ous dev e z respec ter attentiv em ent tout es le s consignes .
24 3Com provi des easy access to technica l support informat ion through a variet y of se rvices. This section describes these serv ices. Information c ontained in this section is corr ec t a t time of publication. F or the most r ec ent information, 3Com re commends that you access the 3C om Cor poration World Wide Web sit e.
25 Suppo rt from Y our Ne twor k S upplie r If you r equire addi t ional a ssistance, contact your net work supplier . Many supplier s ar e authorized 3Com s ervice partner s who ar e qualif ied t o p.
26 Here is a list of worldwide technic al telephone support num- bers. Thes e number s are c orr ec t a t the time of public ation. Refer to the 3C om Web site for updated informatio n. Cou ntry T el ephone Numb er Asia , Pacific Rim Aust ralia Hong Kong I ndia I ndonesi a Ja p an Malaysia New Zealand Paki st an Philip pines P.
27 Retu rni ng Pr o ducts for Repair Befor e you send a pr oduct dire c tly t o 3Com for r epair , you must fi rst ob tain a Retur n Ma teri al Auth orizatio n (RMA) number . Pr oducts s ent to 3Com without a uthor ization numbers wi ll be returned t o the sender unopened, a t the sender ’ s ex pense.
28 3Co m Co rp or ati on L IMITED W ARRANTY 3Com Of ficeCon nect Dual Speed Switch 5, Switch 8 The du ration of the warranty for the Of ficeConnec t Dual Spe ed Switc h 5 (3C16790) a nd Switch 8 (3C16791) is lifetime, i ncl udi ng the power a dapter.
29 The te lephone t echnical suppo rt is av ailable from 3Com f rom 9 a.m. t o 5 p.m., l oca l t i me, Monday through Fr iday, excludin g l o c al hol i days.
30 R EGULA TORY N OTICES FCC S TAT EMENT This equipment has been te sted and f oun d to compl y with t he limit s for a Class B digital device, pursuant to Part 15 of the FCC Rules, a nd the Ca nadian Depart ment of Communicat ions E quipment St andards ent itled, “ Di g ita l Appara tus, ” ICES- 003.
Part No. DUA1679- 0AAA01 Publ ished Februa ry 200 1 31 3C1 6734_ Bo okle t .boo k P ag e 31 Monda y, M a rch 1 2, 200 1 1:46 PM.
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 3C16790 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 3C16790 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso 3Com 3C16790 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul 3Com 3C16790 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il 3Com 3C16790, 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 3C16790.
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 3C16790. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo 3Com 3C16790 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.
