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3Com 3C16987A manuale d’uso - BKManuals

3Com 3C16987A manuale d’uso

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Un buon manuale d’uso

Le regole impongono al rivenditore l'obbligo di fornire all'acquirente, insieme alle merci, il manuale d’uso 3Com 3C16987A. La mancanza del manuale d’uso o le informazioni errate fornite al consumatore sono la base di una denuncia in caso di inosservanza del dispositivo con il contratto. Secondo la legge, l’inclusione del manuale d’uso in una forma diversa da quella cartacea è permessa, che viene spesso utilizzato recentemente, includendo una forma grafica o elettronica 3Com 3C16987A o video didattici per gli utenti. La condizione è il suo carattere leggibile e comprensibile.

Che cosa è il manuale d’uso?

La parola deriva dal latino "instructio", cioè organizzare. Così, il manuale d’uso 3Com 3C16987A descrive le fasi del procedimento. Lo scopo del manuale d’uso è istruire, facilitare lo avviamento, l'uso di attrezzature o l’esecuzione di determinate azioni. Il manuale è una raccolta di informazioni sull'oggetto/servizio, un suggerimento.

Purtroppo, pochi utenti prendono il tempo di leggere il manuale d’uso, e un buono manuale non solo permette di conoscere una serie di funzionalità aggiuntive del dispositivo acquistato, ma anche evitare la maggioranza dei guasti.

Quindi cosa dovrebbe contenere il manuale perfetto?

Innanzitutto, il manuale d’uso 3Com 3C16987A dovrebbe contenere:
- informazioni sui dati tecnici del dispositivo 3Com 3C16987A
- nome del fabbricante e anno di fabbricazione 3Com 3C16987A
- istruzioni per l'uso, la regolazione e la manutenzione delle attrezzature 3Com 3C16987A
- segnaletica di sicurezza e certificati che confermano la conformità con le norme pertinenti

Perché non leggiamo i manuali d’uso?

Generalmente questo è dovuto alla mancanza di tempo e certezza per quanto riguarda la funzionalità specifica delle attrezzature acquistate. Purtroppo, la connessione e l’avvio 3Com 3C16987A non sono sufficienti. Questo manuale contiene una serie di linee guida per funzionalità specifiche, la sicurezza, metodi di manutenzione (anche i mezzi che dovrebbero essere usati), eventuali difetti 3Com 3C16987A e modi per risolvere i problemi più comuni durante l'uso. Infine, il manuale contiene le coordinate del servizio 3Com in assenza dell'efficacia delle soluzioni proposte. Attualmente, i manuali d’uso sotto forma di animazioni interessanti e video didattici che sono migliori che la brochure suscitano un interesse considerevole. Questo tipo di manuale permette all'utente di visualizzare tutto il video didattico senza saltare le specifiche e complicate descrizioni tecniche 3Com 3C16987A, come nel caso della versione cartacea.

Perché leggere il manuale d’uso?

Prima di tutto, contiene la risposta sulla struttura, le possibilità del dispositivo 3Com 3C16987A, l'uso di vari accessori ed una serie di informazioni per sfruttare totalmente tutte le caratteristiche e servizi.

Dopo l'acquisto di successo di attrezzature/dispositivo, prendere un momento per familiarizzare con tutte le parti del manuale d'uso 3Com 3C16987A. Attualmente, sono preparati con cura e tradotti per essere comprensibili non solo per gli utenti, ma per svolgere la loro funzione di base di informazioni e di aiuto.

Sommario del manuale d’uso

  • Pagina 1

    http://www.3com.com/ Par t No. DU A169 8-7AAA 0 2 Publ ished Augus t 2000 Sup erStac k ® 3 Swit ch 3300 SM User Gui de 3C16987A[...]

  • Pagina 2

    3Com Cor poratio n 5400 Bayfr ont Plaza Santa Cl ara, Calif ornia 95052- 8145 Copyri ght © 20 00, 3Com T echnolog ies. All rights reserve d. No part of this docume ntation may be reproduced in any for m or by a ny mea ns or used to make any deriva tive work (such as translat ion, tra nsforma tion, or adapta tion) withou t writt en permi ssion from[...]

  • Pagina 3

    C ONTENT S A BOUT T HIS G UIDE Conventions 8 Related Doc umentation 9 Y ear 2 000 Com pliance 10 Documentation Comm ents 10 Product Registration 10 1 I NTR ODUC ING THE S WITCH 3300 SM About the SuperStack 3 Switch 3300 SM 12 Summary of Featu re s 12 Switch 33 00 SM — Fr ont View D etail 13 10BASE- T/ 100BASE-T X Ports 13 1000BASE- SX Port 13 LED[...]

  • Pagina 4

    2 I NSTALLING THE S WITC H Choosin g a Su itable Site 24 Rack-mounting 2 4 Placing Units On T op of E ach Other 25 St acking U nits 26 St acking T wo Unit s 26 St acking Up T o Four Units 27 The Power -up Sequence 29 Connectin g a Re dundant Pow er System 29 Powering-up the Sw itch 3300 S M 29 Checki ng fo r Co rr ect Op erat ion 29 Choosing the Co[...]

  • Pagina 5

    G LOSSARY I NDEX 3C OM C O RPORATION L IMI TED W ARRANTY R EGULATO RY N OTIC E S[...]

  • Pagina 6

    [...]

  • Pagina 7

    A BO UT T HI S G UI DE This gui de pro vid es all the in for mation you need to install and use a Super Stack ® 3 Switc h 3300 SM (3 C16 987 A) unit w ith de fault se ttings. If you w ant to ch ange t he w ay th e Sw itch work s using manage me nt soft ware, r ef er to the “ Super Sta ck Switch Manag ement Guid e ” . The gu ide is intend ed fo[...]

  • Pagina 8

    8 A BOU T T HIS G UI D E Conve ntions Ta b l e 1 and Ta b l e 2 list conventi o ns that ar e used thr ou ghout th is guide. Ta b l e 1 N otice Ic ons Ic on Notice Ty pe Descripti on In fo rmat io n n o te In fo rmat io n t hat d esc ribes im por ta nt fe atu res o r ins truc tio ns Cauti on Info r mat ion th at alert s y ou to pot e nt ial loss of [...]

  • Pagina 9

    Relat ed Docu menta tion 9 Related Do cumen tati on In add ition t o this g uide , each Sw itch 33 00 SM doc umen t set i nclud es th e fo llow i ng : ■ Ma nagemen t Gui de This gu ide contai ns all the ma nagem ent inform ation for the Swi tch. ■ Qui ck Refe rence Gui de This g uide co ntains a quic k summary of the har d war e an d so ftwar e[...]

  • Pagina 10

    10 A BOU T T HIS G UI D E Y ear 200 0 Compli ance For i nfor matio n on Y ear 2000 com plian ce and 3Co m p roducts, visit t he 3Co m Y e ar 2000 Web page: http :/ /w ww.3c om .c om/p ro du cts/y r2 000. ht ml Do cumen tation Comme nts Y our suggest io ns ar e very imp ortant t o us. They will h elp make o ur docum en tation m ore usef ul to you. P[...]

  • Pagina 11

    1 I NTR ODUCING THE S WI TCH 3300 SM This c hapter c ontai ns intr od uct ory inf ormation about the Swit ch an d how it ca n be u sed in y our ne tw ork. I t cov ers the f ollow ing t opics : ■ Abo ut th e Su perSta ck 3 Sw itch 3300 S M ■ Switch 33 00 SM — Fr ont Vi ew Det ai l ■ Switch 33 00 SM — Rear View Detail ■ Netwo rk C onfig u[...]

  • Pagina 12

    12 C HAPTER 1: I NTRODUCING THE S WITCH 3300 SM Ab out the Su per S tac k 3 Swi tc h 3 300 SM The Supe rSt ack ® 3 Sw itch 330 0 SM conn ects : ■ your existing 10M bps dev ices. ■ high-pe rfo rmance wo rkgroups wi th a 1 00Mbp s or 1000M bp s backb one o r ser ver co nne ction. ■ users to dedica ted 1 00M bps po rts in on e sw itch. In addi [...]

  • Pagina 13

    Swit ch 3300 SM — Front View Det ail 13 Swi tc h 3 300 SM — Fr o nt Vie w Detail Figure 1 Switch 3300 SM — front view 10B A SE - T/ 100B AS E-TX P orts The Swit ch has 24 au to-neg otiat ing 10BASE- T/100 BASE-TX ports conf igure d as M DIX (cross- over ). These ports can be set to 10BASE-T half duplex , 10 BASE- T full du ple x, 100B AS E-TX[...]

  • Pagina 14

    14 C HAPTER 1: I NTRODUCING THE S WITCH 3300 SM Ta b l e 3 LED behavior LED Color In dicates Port S t atus LEDs Packet Yellow Packets ar e bei ng transm itt ed/ re ceive d on the por t. Off No pack et s are be i n g tra nsmi tt ed/re cei ve d o n th e port. Statu s Gr een A lin k is pre sent, and the por t is enab le d. Green flas hi ng A lin k is [...]

  • Pagina 15

    Switc h 33 00 SM — Re ar View Det ail 15 Swi tc h 3 300 SM — Re ar V iew D eta il Figure 2 Switch 3300 SM — r ear view Unit In fo rmatio n Label This la bel shows the following : ■ The 3C om p roduct name o f the S witc h ■ The 3Com 3C numb er of the Swit ch ■ The uni que MAC address (Et hernet addr ess ) of th e Switch ■ The ser ial [...]

  • Pagina 16

    16 C HAPTER 1: I NTRODUCING THE S WITCH 3300 SM Cons ole Port T he con s ol e po rt al lo ws yo u to c onn ec t a te rm in al and p erf or m rem ot e o r local out-of -ban d ma nageme nt. Th e con sol e port uses st andard n ull mode m ca ble and i s set to aut o-baud, 8 d ata bit s, no pa rity an d 1 stop bit. M atrix Port The Matrix Port al lo ws[...]

  • Pagina 17

    Network Conf i gurati on Exam ples 17 Net work Config uration Exam p les The f ollowi ng il lustra tio ns show s ome example s of how th e Switch c an be us ed i n y o ur net wor k. Switch 3300 SM a s a Segm entati on S wi tch The example in Figu r e 3 shows how a Switc h 3300 SM stack can s egment a network of shared 10Mb ps ,100Mbp s and 100 0Mbp[...]

  • Pagina 18

    18 C HAPTER 1: I NTRODUCING THE S WITCH 3300 SM Switch 3300 SM a s a Coll aps ed Back bon e Sw itc h The exam ple in Figu r e 4 shows ho w a Swi tch 3300 S M stack can a ct as a backb one f or bo th sha re d a nd sw itch ed net work segmen ts. Figure 4 Using the Swit ch as a co llapsed bac kbone Switch 3300 SM stack Endstations on switched 10Mbps c[...]

  • Pagina 19

    Network Conf i gurati on Exam ples 19 Switch 3300 SM a s a D esk top S wi tch The example i n Fi gu r e 5 show s how a Sw itch 330 0 SM can be u sed, within a stac k, fo r a g r oup of use rs that requi re dedic ated 1 0Mbp s or 100Mbps connecti o ns to the de sktop . The 3300 SM Switc hes pr o vid e a Gig abit Et hernet connectio n to a SuperSt ac[...]

  • Pagina 20

    20 C HAPTER 1: I NTRODUCING THE S WITCH 3300 SM Config uration Rul es fo r Fas t E th er n et The t opolo gy rule s for 100 M bps Fast Et hern et are sl ightly di ffer ent to those f or 10 Mbps E ther ne t. Fi gure 6 illus trates the key topo log y rules and pr ovi des exampl es of how they allo w for lar ge -scale F ast Et hernet netw orks. Figure[...]

  • Pagina 21

    Co nfi gur atio n R ule s wit h F ull D uplex 21 The key to polog y rules are: ■ Ma ximum UTP cable l eng th is 100m (3 28f t) ov er Cat egory 5 cab le. ■ A 412 m (1352f t) fiber run is al lowed for conne cting swi tch-to-sw itch, or endst ation -to-sw itch , usin g half-du ple x 100BA SE- FX. ■ A tot al ne twork spa n of 325m (1 066 ft) is a[...]

  • Pagina 22

    22 C HAPTER 1: I NTRODUCING THE S WITCH 3300 SM Config uration Rul es fo r Gig a b it Eth er n et Gigab it Eth ern et i s designe d to run ov er fou r me dia: ■ Singl e-mode fibe r opt ic cab le, w ith conn ect ions up to 5km . ■ Mul timode fibe r optic cable , wit h conne ction s up to 550m. ■ Bala nced, shield ed c opper c abling , with co [...]

  • Pagina 23

    2 I NSTALLI NG TH E S WITCH This ch ap ter co ntain s the inform ation y ou need t o insta ll and se t up t he Swi tch. It c over s th e foll o wing topi cs: ■ Choosing a Suitable Si te ■ Rack- mo unti ng ■ Placin g Un its On T o p of Ea ch Ot her ■ Stack ing Units ■ The Power -up Sequence ■ Choosing the Corr ect Cables ■ Solving Prob[...]

  • Pagina 24

    24 C HAPTER 2: I NSTALLING THE S WITCH Choosin g a Suita ble Si te The Swit ch is su ited for use in an off ice envir onm e nt wher e it c an be mount ed in a standa rd 19- inch equipm ent rack, or free st anding. Alter na tively , th e S wit ch can be rack -mount ed in a wiring closet or equipm ent r oom . A r ack- mou nting k it, con taini ng two[...]

  • Pagina 25

    Plac in g Units On Top of Ea ch Other 25 Figure 7 Fitting a brac ket for rack mounti ng 3 In se rt t h e tw o scre ws a nd t ig hte n wi th a sui ta ble s crew d ri ver . Y ou must use the sc rews su pplie d with the mo unti ng brac kets. Dam a ge caused to the uni t by using incorrec t scr ews inval idates y our w arrant y . 4 Repea t step s 2 and[...]

  • Pagina 26

    26 C HAPTER 2: I NSTALLING THE S WITCH Sta cki ng Un its U nits in the S witch 11 00/3 300 fam ily can b e stac ked toget her an d the n tr eat ed as a sing le manageable unit wi th one IP add r ess. The Mat rix Port o n th e rear of the Switch al lows yo u to connec t two Switch units back -to-ba ck. For this y ou need a Matr ix Cable (par t numb [...]

  • Pagina 27

    Stack in g Un its 27 Figure 8 A stack of two uni ts Stack ing Up T o Four Units Y ou c an st ack up to fo ur S witch units using a Sw itch 33 00 M M and t he appr opr iate number of Matrix Cables. Y ou nee d only one Super Stack 3 Sw itch 33 00 MM p er stack . T o stack up to fou r Switch u nits: 1 Po we r - o ff al l th e uni t s. 2 Arrang e the u[...]

  • Pagina 28

    28 C HAPTER 2: I NSTALLING THE S WITCH 4 If you u se th e mana gem ent sof tware of t he un its: ■ Ensure tha t all t he un its have the sa me ver sion o f mana gem ent software ■ Ensu re th at you re -c onfi gure t he st ack-wid e fea tur es on all the unit s Fo r m ore i nfo rm a tio n ab ou t m a na ge me n t so ft w are, s ee “ Ma naging [...]

  • Pagina 29

    The Pow er-up Sequen ce 29 Th e Pow e r - up Seq u enc e The f ollow ing sect ions descri be how to get you r Swi tch 330 0 S M pow ered- up a nd ready for ope ration. Co nnect ing a Redund an t P ower Syst e m Y ou c an co nnec t a SuperS tack Ad vance d Red und ant Po wer S ystem (par t num ber 3C 1 607 1B) to the Switch. Thi s unit, w hic h is a[...]

  • Pagina 30

    30 C HAPTER 2: I NSTALLING THE S WITCH I f there i s eviden ce of a pr ob lem, see “ Solvin g Prob lems Indi cated by LEDs ” on pa ge 31 . Choosin g the Co rr e ct Ca bles All of the ports o n the front of the Switch 33 00 SM a re co nfigured a s MDIX (cr oss-ov er). If y ou want to make a con necti on to an other MDIX port , you ne ed a cross-[...]

  • Pagina 31

    Solvi ng Probl ems I ndi cated by LE Ds 31 Solving Problems Indicated by LEDs If the LEDs on the Switch in dicat e a pr oblem, r e fe r to Ta b l e 6 which contai ns a list of problem s and su ggest ed solu tions. For inf orma tion a bout solv ing pro blems w hen man aging t he Switch, refer to t he Pr oblem Solvi ng c hapter in the “ S upe rStac[...]

  • Pagina 32

    32 C HAPTER 2: I NSTALLING THE S WITCH Manag ing th e Sw itch The S witc h contai n s sof t war e that allows you t o chan ge an d monito r the way it wo rks. Th is mana gem en t s oft w ar e is not requi red to g et the Switch w ork ing, b ut if y ou d o us e it, y ou ma y imp rove th e effic iency o f the Swi tch and ther ef ore impro ve th e ove[...]

  • Pagina 33

    A S AFETY I N FORMA TION Y ou m ust re ad the fo llowing safet y infor matio n before c arryi ng out any install ation or r em oval o f comp onen ts, or any m aintena nce procedures on the Switch 330 0 SM . WARN ING : W arnin gs cont ain di rection s th at you m ust f ollow for y our personal saf ety . Follow all dir ectio ns carefully . Y ou mus t[...]

  • Pagina 34

    34 A PPENDIX A: S AFETY I NFORM ATION Importa nt Safe ty In form atio n ■ Install ation and remo val of the un it mu st be ca rried o ut by qua lified pers onnel o nly . ■ If insta lling th e Swit ch uni t in a stack with Super Stack H ub u nits, th e Switch 33 00 SM uni t must be insta lled b elow th e Hu b unit s. ■ The un it sho uld n ever[...]

  • Pagina 35

    Imp or ta nt S afe t y In form at io n 35 ■ Franc e and Peru onl y: This unit ca nnot be p owe red from IT † supplies. If your supplie s are of I T type, this unit m ust be po wered by 230V (2P+T) via an isolati o n transf ormer ratio 1:1 , wi th th e secon dary co nnec tion point l abelled Neut ral, c onnec ted di re ctly to e arth (g r ound )[...]

  • Pagina 36

    36 A PPENDIX A: S AFETY I NFORM ATION L ’ inform at ion de S é curit é Im port ante ■ L' install ati on et la d é po se de c e gr oup e do ive n t ê tre c onf i é s à un pers onnel q ualif i é . ■ Si vous enta ssez l'u nit é Swi tch avec les unit é s S u per Sta ck H u b, l' u ni t é Switch 33 00 SM d oit ê tre insta[...]

  • Pagina 37

    L ’ info rma ti on de S é curi t é Im por tan te 37 ■ L ’ app areil fo nctionn e à une tensi on e xtr ê mem ent basse de s é cu ri t é qui est co nfor me à la no rm e CEI 950 . Ce s cond itions n e sont maintenue s que si l' é quipe m ent a uquel i l est raccord é foncti onn e dans les m ê me s cond itions. ■ Fra nce e t P é[...]

  • Pagina 38

    38 A PPENDIX A: S AFETY I NFORM ATION Wi ch ti ge Sicherh eitsinfor mat ion en ■ Die In stallation und der Ausba u de s Ger ä ts darf nur d ur ch Fach per sonal erfol gen . ■ Wenn di e Sw itch 33 00 SM E inh eit in e iner Stapel mit a nderen Super Stack H ub E inh eiten ei ngeb aut werden soll , mu ß die Swit ch 3300 S M Ei nheit unter d ie s[...]

  • Pagina 39

    Wi chti ge Si cherhei t si nform atio nen 39 WARN HIN WEIS : F ase ropt ik ansc hl ü sse - Optisc he Siche rheit. Niemals mit eine m V e rgr öß erun gsger ä t einen Ü bertr agungs-L aser betr acht en, w ä hrend d ieser eing eschal tet ist. Nie m als di rekt auf d en Fa ser Anschlu ß und auf die Faser kabelen den schauen, w ä hrend diese ei [...]

  • Pagina 40

    40 A PPENDIX A: S AFETY I NFORM ATION[...]

  • Pagina 41

    B P IN - OU TS Nu ll Modem Cable 9-pin t o R S-232 25 -p in PC-A T Seri al Cabl e 9-pin to 9 -pin Screen TxD RxD Ground RTS CTS DSR DCD DTR Screen RxD TxD Ground RTS DTR CTS DSR DCD Shell 3 2 5 7 8 6 1 4 1 3 2 7 4 20 5 6 8 Switch 3300 SM Cable connector : 9-pin female PC/T erminal Cable connector: 25-pin male/f emale only required if screen alway s[...]

  • Pagina 42

    42 A PPENDIX B: P IN - OU TS Modem Ca ble 9-pin t o R S-232 25 -p in RJ45 P in Assign me nts Pi n assignment s ar e identic al f or 10BASE-T an d 100BASE- TX RJ45 co nnector s Screen TxD RxD RTS CTS DSR Ground DCD DTR Screen TxD RxD RTS CTS DSR Ground DCD DTR Shell 3 2 7 8 6 5 1 4 1 2 3 4 5 6 7 8 20 Switch 3300 SM Cable connector: 9-pin female RS-2[...]

  • Pagina 43

    RJ45 P in Assi gnment s 43 Ports c onfigu red as MDI X 1 RxData + Receiv e Data 2 RxData – Rece ive Data 3 TxData + Tra nsmi t data 4 Not as signe d 5 Not as signe d 6 TxData – Tra nsmi t dat a 7 Not as signe d 8 Not as signe d Ta b l e 7 Pin assignments Pin Number Si gnal Funct ion[...]

  • Pagina 44

    44 A PPENDIX B: P IN - OU TS[...]

  • Pagina 45

    C T ECHNI CAL S PECIFICATIONS Physic al Dimensio ns Heigh t: 43 .6mm x Width: 440m m x Depth: 247.5 mm Weig ht: 5kg (11lbs) Envir onment al Requir ement s Oper ating Tempera tur e 0 ° to 5 0 ° C ( 32 ° to 122 ° F) Stora ge Temperat ure – 10 ° to +7 0 ° C (14 ° to 158 ° F) Oper ating Humidity 10 – 95% r elat ive humidity, n on-conde nsin[...]

  • Pagina 46

    46 A PPENDIX C: T ECHNICAL S PECIFICATIONS Standar ds Support ed SN MP SN MP pr otocol (RFC 11 57) MIB -II (R FC 1213) Bri dge MIB (RFC 1493) Repeat er MI B (RF C 1516) VLAN M IB (RFC 1573) RMON MIB (RFC 1271) BOOTP ( RF C 95 1) T erm inal Emul ati on Teln et ( RFC 854) Prot oco ls Used for A d min istr a tion UDP ( RFC 768) IP (R FC 791) ICMP (RFC[...]

  • Pagina 47

    D T ECHNI CAL S UPPO RT 3Co m p r ovide s easy a cce ss to t echn ical suppor t infor mat ion throug h a vari ety of serv ic es. This app endi x descr ibes th ese serv ic es. Infor mation co ntained in th is appendi x is co rre ct at t ime o f publ icatio n. For the mos t r ece nt i nformati on, 3 Com r ecommends t hat you a ccess the 3Com Corpor a[...]

  • Pagina 48

    48 A PPENDIX D: T ECHNICAL S UPPORT 3Co m F TP S i te Down load drivers, patches , software, and MIBs across the In tern et fro m the 3Com p ublic F TP site. This service is availa ble 24 hours a day , 7 days a week. T o con nect t o the 3Com F TP site, ente r the foll owing info rmati on in to yo ur F TP client: ■ Hostname: ft p.3c om .com ■ U[...]

  • Pagina 49

    Support f rom 3Com 49 ■ Diagno stic error message s ■ Detai ls abou t recen t confi guratio n ch ange s, if a pplicabl e Here is a list of w orldw ide tec hnical t elep hone support nu mb ers: Count r y Te lep hon e Numb er Count ry Tel eph one Nu mber Asia, Paci fi c Ri m Australi a Hong Kong Indi a Indo nes ia Japan Ma la ys i a New Ze alan d[...]

  • Pagina 50

    50 A PPENDIX D: T ECHNICAL S UPPORT Retu rning P roducts fo r Rep ai r Before you se nd a product di rectly to 3Co m for repair , y ou must firs t obtai n an au thoriz ation n um ber . Pr oduc ts sen t to 3 Com witho ut author ization num ber s will be return ed t o the se nder u nope ne d, at th e sender ’ s e xpense . T o obtain an autho rizat [...]

  • Pagina 51

    G LOSSARY 10B A SE - T The IEEE specific ation for 10Mbps E ther net over Cat egory 3, 4 or 5 twist ed pai r ca ble. 100B A SE-FX The IEEE specif ica tion fo r 100Mbps Fas t Ethernet over fiber -optic ca ble. 100BA SE -TX The IEEE specif ication for 100Mb ps Fast Et hernet over Ca tegory 5 t wi st ed - pai r ca ble . 1000 BA SE-S X The IEE E specif[...]

  • Pagina 52

    52 G LOSSARY inform ation to for ward pac kets ba sed o n their destinati on a ddress. This process is known as fil tering. br oadc a st A pac ket sent to al l devic es on a ne twork. broa dc ast st or m Mult iple s imultan eous br oad casts that ty pic ally absor b all th e availab le netw ork bandwidt h and ca n cau se a ne tw ork to fail. Broad [...]

  • Pagina 53

    53 fu ll du pl ex A sy s te m th at al lo w s pa c k ets t o b e tra ns mi t ted and rec ei v ed a t th e same t ime a nd, in e ffect, doub les the pot ential t hroughpu t of a link. half du pl ex A system that al lows pa ckets t o tran smitted a nd rece ived, but no t at the sam e ti me. Cont rast with full dupl ex . hub A device that r egen er at[...]

  • Pagina 54

    54 G LOSSARY lo op An event t h at occ urs when two net work devi ces ar e co nnected by mor e than one path, t her eby causing packet s to r epeated ly cy cle ar ound th e net work and n ot reach t heir de stinatio n. MAC Media Access Control. A pr otocol speci fied by t he IEEE for d eterm ining whic h device s have acces s to a ne twork at any o[...]

  • Pagina 55

    55 ser v er A comp uter i n a networ k that is sh ared by mul tiple end stat ions. Se rv ers provide e ndstation s with access t o sha re d ne twor k serv ices suc h as compu ter files and prin ter queu es. SLIP Se rial Li ne Int erne t P rotocol. A protoc ol tha t allow s IP to run ove r a serial line (con sole po rt) conne ction . SN MP Si mple N[...]

  • Pagina 56

    56 G LOSSARY unic ast A packe t sent to a singl e endst ation on a network. WAN Wide Area Network. A communicatio ns net work that c overs a wide ar ea. A W AN can cover a large g eogra phic ar ea, and may cont ain severa l LANs within it.[...]

  • Pagina 57

    I NDEX Numbers 1000BASE - S X 13 10BASE- T/ 100BAS E-TX por ts 13 3C nu mb e r 15 3Com K nowle dgeb ase W eb S ervic es 47 3Com URL 47 A auto- neg otiat in g ports 1 3 C cab le choos ing the cor r ec t 30 Matrix 16 maximum length 13, 21, 22 pin- outs 41 conso l e port 16 conve nt ions noti ce ic ons, About Thi s Guid e 8 text , About Thi s Guide 8 [...]

  • Pagina 58

    58 I NDEX powe ring- up a S witch 33 00 SM 29 pro duct name 15 R rack mounti ng a Swi tch 3300 S M 24 Redunda nt Po wer S ystem . See RP S re turning p r oduc ts for repa ir 50 RPS 15 co nnecti ng 29 soc k et 15 S s afe ty i nf or mati on Engli s h 3 4 Fr ench 36 German 38 segment , max imum l ength 13, 21 seri al num be r of the Swi tch 15 se rial[...]

  • Pagina 59

    3Com C or porat ion L IMITED W ARRANTY Th is w arr an ty a ppl ie s t o cus to mer s loc ate d i n t he Uni te d S tat es , Aus tr ali a, C an ada (e x cept Qu eb ec) , Ir el an d, Ne w Zeal an d , U. K., and other Engl ish language countr ies, and cou ntri es for whi ch a tran slation into the loca l langua ge is n ot prov ided. S UPER S TACK ® 3[...]

  • Pagina 60

    shippe d to Cust omer, at 3Co m's expe nse, not l ater tha n thirty (30) d ays af ter 3Co m receive s the defe ctive product , and 3C om will re tain risk of loss or dama ge until the item i s delivere d to Cu stomer. 3Com sha ll not be respons ible for a ny softwa re, firmwa re, info rmation, or memor y data of Custome r containe d in, st ore[...]

  • Pagina 61

    OF O R IN C ONN EC TI ON WI TH THE SA LE, IN ST ALLA TI ON, MA IN TE NANC E, US E, PE RF ORM ANCE , FA ILU RE, OR INT ER RUP TI ON O F I TS P RODU C T S, EVE N I F 3CO M OR ITS AUTH ORIZED R E SELL ER HAS B EEN A DVI SE D OF TH E PO SS IBIL I TY OF SUCH DA MA GES, AND LI MITS I TS LIA BIL I TY T O RE PA IR, REP LACE MEN T, O R R EFU ND OF TH E PURC[...]

  • Pagina 62

    R EGULATORY N OT ICES FCC S TA TEMENT This equipme nt has be en test ed and fou nd to compl y with t he limits f or a Class A digita l device , pursuant t o part 15 o f the FCC rules. T hese li mits ar e designe d to provi de reas onable pr otection against harmful int erf e renc e wh en th e eq u ip men t i s op er ate d in a c om me rci al env ir[...]