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3Com 1100 manuale d’uso - BKManuals

3Com 1100 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 1100. 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 1100 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 1100 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 1100 dovrebbe contenere:
- informazioni sui dati tecnici del dispositivo 3Com 1100
- nome del fabbricante e anno di fabbricazione 3Com 1100
- istruzioni per l'uso, la regolazione e la manutenzione delle attrezzature 3Com 1100
- 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 1100 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 1100 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 1100, 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 1100, 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 1100. 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/ Super Stack ® II Switch 1100 User Guid e 3C16950, 3C16951 Part N o. DU A 1695-0AAA02 Publ is h e d Augus t 1998 169 50u a. bk Page 1 Th urs da y, Au gu st 27 , 1998 11: 5 5 A M[...]

  • Pagina 2

    3Com Cor poratio n 5400 Bayfr ont Plaza Santa Cl ara, Calif or ni a 95052- 8145 Copyri ght © 1998, 3Co m T echn ol og ies. All rights reserved. No part o f this docume nt at i on ma y be r eprodu c ed in any for m or by any me ans or used t o ma ke a ny d e riva t ive wor k (such as t ran s lation , t ra nsformation, o r adapta t ion) w ithout wri[...]

  • Pagina 3

    C ONTENT S A BOUT T HIS G UID E Conventions 8 Related Doc um entation 9 Y ear 2 000 Compli ance 10 Documentat i on Comments 10 1 I NTR ODUC ING TH E S WITCH 1100 About the SuperStack II Switch 1100 12 Summary of Feature s 12 Switch 11 00 — Front Vi e w De tail 13 Port Connections 13 LEDs 14 Switch 11 00 — Rear View Detail 15 Unit Information La[...]

  • Pagina 4

    iv Wa ll-mounting 25 Placing Units On T op of Each Other 27 St acking U nits 27 St acking T wo Un its 27 St acking Mu lti ple Un its 28 The Power -up Seq uence 30 Connectin g a Redunda nt Power System 30 Powering-up the Switch 1100 30 Checki ng for Correct Op eration 30 Choosing the Corr ect C ables 31 Solving Pr o bl em s Indicated by LEDs 32 Mana[...]

  • Pagina 5

    v G LOSSARY I NDEX 3C OM C ORPORA TIO N L IM I TED W ARR ANTY EMC S TATEM ENTS 169 50ua. bk Pa ge v Th urs da y, Au gu s t 27 , 199 8 11: 5 5 A M[...]

  • Pagina 6

    vi 169 50ua. bk Pa ge v i Th urs da y, Augu st 27 , 199 8 11: 5 5 A M[...]

  • Pagina 7

    A BOUT T HI S G UI DE This g uide pro vid es all the inf ormatio n you need to inst all an d use a Super Stack ® II Swit ch 110 0 unit wi th def ault setting s. If you want t o ch ange th e wa y the Sw itch w orks u si ng m ana geme n t soft wa re, ref er to the “Su perSt ack II Switc h Managemen t Guide” ( part nu mber DUA1695 -0BAA0x). The g[...]

  • Pagina 8

    8 A BOU T T HIS G UI DE Conve ntions T able 1 and T able 2 list conventi o ns that ar e used thr ougho ut this guid e. Ta b l e 1 Notice Icons Ic on Notice Type Descri ption In form at ion no te Info rmatio n that d esc ribes impor ta nt featu res o r ins truct ions Cauti on Info rmat ion th at ale rts y ou t o potent ial loss of d at a or potent i[...]

  • Pagina 9

    Relat ed Docu mentati on 9 Related Do cumen t ati on In addi tion to t his guid e, each S w i tch 1100 do cume nt set in cludes the fo llow ing : ■ Mana gemen t Gui de (Part N umber DU A1695- 0BAA0x) This gu ide con tains all the mana geme nt inform ation for the Sw itch. ■ Quick Reference Gu i de (Part Num b er DQA 1695-0AAA0 x ) This g uide c[...]

  • Pagina 10

    10 A BOU T T HIS G UI DE In addi tion, the r e are other publ ications y ou may f ind us eful: ■ Document ation ac companying th e Expansion Modules. ■ Document ati on accompanyi ng the T r ansceiv er Modul es. ■ Document ation ac companying th e Matrix Module an d Matrix Cable. ■ Docume ntatio n accom panying t he Ad vanced Re dundan t Pow[...]

  • Pagina 11

    1 I NTR ODUCING THE S WIT CH 1 100 This c hapter c ontains int r oductory informatio n about the Swit ch and how it ca n be use d in your networ k. It cov e rs t he follo wing topic s: ■ A bout t h e Su perSta ck II Sw i tch 1100 ■ Switch 1100 — Front V i ew Detail ■ Swi tch 1100 — Rear View Det ail ■ Netwo r k C onfigur ation Exa mples[...]

  • Pagina 12

    12 C HAPTER 1: I NTRODUCING THE S WITCH 1100 Ab out the Su perS tack II Sw itch 11 00 The Supe rSta ck ® II system so l ve s the problem of growt h in dyna mic netw ork envi ronments a n d pr ovi des ev e ryt hing yo u need f or suc cessful wor kgroup net working . Much m ore than a collecti on of stack able componen ts, th e syst em comprises a c[...]

  • Pagina 13

    Switc h 1100 — Front View Detail 13 Sw itch 110 0 — Fr o nt Vie w Detai l Figure 1 Switch 1100 — Front vie w Port C onnectio ns 10B ASE-T P orts The Swi tch has 12 or 24 10BASE- T ports c onfig ur ed as MDIX (cro ss-ov er). The ma ximum segmen t length i s 100m (3 28ft) ove r Ca tegory 3 , 4, or 5 twist ed pair cable. As these p orts ar e con[...]

  • Pagina 14

    14 C HAPTER 1: I NTRODUCING THE S WITCH 1100 LEDs T able 3 lists the LEDs v isible o n the fr ont of th e Switch, a n d th eir stat es acco rding to col or . Fo r inf ormatio n on using the LEDs f or problem solving , see “Checki n g for Co rrec t Ope ratio n” on page 30 . Ta b l e 3 LED behavior LED Color Indica tes TCVR Yellow Por t 1 i s a T[...]

  • Pagina 15

    Sw itch 1100 — Re ar Vi ew Detail 15 Swi tc h 11 00 — Rea r View Deta il Figure 2 Switch 110 0 — Rear view Un it Inform ation Label This la bel shows the follo wing: ■ The 3C om p r oduct name o f the Swi tch ■ The 3Com 3C n umber of th e Switch ■ The uni que MAC address ( Ethernet ad dres s) of th e Switch ■ The ser ial numb er of th[...]

  • Pagina 16

    16 C HAPTER 1: I NTRODUCING THE S WITCH 1100 Ex pans ion M odul e Slot Y ou c an use thi s slot to i nstall an Ex pansion M odule tha t provides a high-spe ed link t o the rest of your netwo r k, o r a Mat r ix Modu l e tha t pr ovi des four matr ix port s fo r sta cking Swit ch unit s to geth er . 3Com provide s a range of Exp a ns i on M odule s;[...]

  • Pagina 17

    Network Conf igura tion Ex ample s 17 Net work Config uration Exam ple s The f ollowi ng illu stra tion s show some ex amples of how the Swit ch can be place d on your networ k. Ne twor k Seg m en ta ti on I Figu r e 3 sho ws how the Swi tch 110 0 fits int o a larg e corporat e netwo rk with a Fast Ether net in f ra structure. A Switch is posit ion[...]

  • Pagina 18

    18 C HAPTER 1: I NTRODUCING THE S WITCH 1100 Ne twor k Segm entatio n II Figu r e 4 sho ws th e S witch 110 0 in a sec ond w orkgroup si t uat ion. Th i s setup co uld b e that o f a small o f fice within a large corporatio n, or p art of a large r corp orate net work. M ost of th e switch ports ha ve mult iple endsta t ion s. Figure 4 Using the Sw[...]

  • Pagina 19

    Network Conf igura tion Ex ample s 19 Des ktop Switch ing Figu r e 5 sho ws the Switch 1100 us e d f o r a group of u ser s i n a large corpo rate ne twork. Her e sw i tch ing is brou ght to t he deskt op with a single endstation per po rt. Loca l serve r s are co nnected via 100 Mbps F ast Ethe r n et l inks. Figure 5 Using the Switch 1100 in a de[...]

  • Pagina 20

    20 C HAPTER 1: I NTRODUCING THE S WITCH 1100 Config uration Rules fo r F ast E th er net The t opology r ules for 100 Mbps F ast Ether net are slight l y di f ferent to those f or 10Mb ps Ether net. Figure 6 il lust r at es the ke y t o pology rul es and pr ovi des exampl es of how they allow fo r large -scale F ast Et hernet netw orks. Figure 6 Fa[...]

  • Pagina 21

    Config urati on Rules with Full Du plex 21 The key topolog y rules are: ■ Ma ximum UTP cable le ngth is 100m (3 28ft) ov e r Cate gory 5 ca ble. ■ A 412m (135 2ft) fibe r run is allo wed for connecti ng switch-to- switch, or endst ation - to- switch, usi ng half- duplex 10 0BA S E- F X. ■ A tot a l n etwork span of 325 m (1066 f t) i s allowe[...]

  • Pagina 22

    22 C HAPTER 1: I NTRODUCING THE S WITCH 1100 169 50ua. bk Pa ge 2 2 T hu rsday, A ugus t 27, 19 98 11 : 55 AM[...]

  • Pagina 23

    2 I NSTALLING TH E S WITC H This ch apter co ntain s the info rmation y ou nee d to insta l l an d set up t he Swi tch. It cover s the foll owing topi cs: ■ Choosing a Suitable Si te ■ Rack- mount ing ■ W all-m ounting ■ Placin g Units On T o p of Each Other ■ Stack ing Units ■ The Power -up Sequence ■ Choosing the C or rect Cables ?[...]

  • Pagina 24

    24 C HAPTER 2: I NSTALLING THE S WITCH Choosin g a Suitable Si te The Swit ch is suite d for use in an of fic e envir o nme nt wher e it can be wall- mounte d, moun ted in a standard 19 -inch equ ipment rack, or f r ee standi ng. Alter natively , the S witch c an be r a ck - m ounted in a w i ring closet or equi pment r o om . A wall-mo unting/ rac[...]

  • Pagina 25

    Wall -moun ting 25 Figure 7 Fitting a brac ket for rack mounti ng 3 I nsert the t hre e scr ews and tighten with a suitab le scr ewdriver . Y ou must use t he screws supplie d with the mounti ng bracket s. Dama ge caused to th e unit by using in correct screws in validates y our wa r ra nty . 4 Repea t steps 2 and 3 for t he other si d e of the S w[...]

  • Pagina 26

    26 C HAPTER 2: I NSTALLING THE S WITCH Figure 8 Fitting a brac ket for wall-mounti ng 3 In sert the tw o scre ws and tig hten w ith a su itab le s crew dri ver . 4 Repea t steps 2 and 3 for t he other si d e of the S witch. 5 Ensure t hat the wall yo u are u sing is smooth, f lat, dry and st urdy . Att a ch a piece of plyw ood, approx imately 305mm[...]

  • Pagina 27

    Plac ing Unit s On Top of Each Othe r 27 Plac ing Un its O n T op of Each Othe r I f the Switch units ar e fr ee-stan ding, up to four unit s can b e placed one on top of the ot her . If you are mixi ng a variet y of SuperS tack II Swi t c h and Hub unit s, the smaller units m ust be position e d a t the t op. If you a r e pla cing S wi tch units o[...]

  • Pagina 28

    28 C HAPTER 2: I NSTALLING THE S WITCH As show n in Fi gur e 9, co nnect o ne end of t he Matr i x Ca ble to the m atrix port o f the t op S witch, an d the other en d to the matri x port of th e lowe r Swi tch. Figure 9 A stack of two units Stacki ng Multi ple Units Y ou c an co nnect u p to fou r Sw itch uni ts to form a stack. I f y ou conn ect [...]

  • Pagina 29

    Stack in g Unit s 29 3 Connect th e Matri x Cables, as shown in Figur e 1 0: a Connect a Mat rix Cabl e to the por t marked Uni t 1 on t he Matr ix Modu le. Connec t the othe r end of thi s cabl e to t he matrix po rt of the Swi tch that con tains the Mat rix Module. b Connect a s econd Matr ix Cable to t he port marked Unit 2 on the Matri x Module[...]

  • Pagina 30

    30 C HAPTER 2: I NSTALLING THE S WITCH Th e Pow er - up Sequenc e The f ollowing se ctions describe how to get you r Switch 1100 power ed-u p and r eady for operatio n. Conne cti ng a Redund ant Power Syst e m Y ou c an co nnect a S u perStack II Adva nced Re dundant Power System (part number 3C1607 1) to the Swi tch. This unit, whi ch is also know[...]

  • Pagina 31

    Choosi ng the Corre ct Cable s 31 I f there is eviden ce of a pro blem, see “Solv ing Prob lems In dicated by LEDs ” on pa ge 32. Choosin g the Co rr e ct Ca bl es All of the ports o n the f ront of the Switch 1100 are c onfigured as MDIX (cr oss-ov er ). If you want to make a connection to another MDIX por t , you need a c ross- over cable. Mo[...]

  • Pagina 32

    32 C HAPTER 2: I NSTALLING THE S WITCH Solving Problems Indicated by LEDs If the LEDs on the Swit ch i n dicate a problem, r efe r to T able 5 which contai ns a list of possible p r o blems and sugge st ed solutions. Ta b l e 5 Pr oblems i ndicated by L EDs Prob lem Suggest ed S oluti on A Power L ED d oes not light Check t ha t th e pow er ca ble [...]

  • Pagina 33

    Man aging the Switch 33 For inf ormat i o n about solving pro blems wh en man aging t he Swit ch, refer to the Pr oblem Solvi ng chapt er i n the “ SuperStac k I I Switch Ma nagemen t Guid e” (DUA 1695-0BAA 01). Manag ing the Sw itch The S witch contai ns sof tware th at allo ws you t o chan ge and monito r th e way it wo rks. Th is mana geme n[...]

  • Pagina 34

    34 C HAPTER 2: I NSTALLING THE S WITCH 169 50ua. bk Pa ge 3 4 T hu rsday, A ugus t 27, 19 98 11 : 55 AM[...]

  • Pagina 35

    A S AFETY I N FORMA TION Y ou m ust read th e followi ng safet y informa tion b e fore c arrying out any install ation or r e moval o f comp onents, or a ny m aintena nce pro cedures on the Switch 110 0. WARN ING: Warnin gs conta i n direction s that y ou must f ollow fo r your person al safety . F ollow all d irect ions care fully . Y ou mus t rea[...]

  • Pagina 36

    36 A PPENDIX A: S AFETY I NFORM ATION Important Safety In formati on ■ Install ation and re moval of the un i t mu st be ca rried o ut by qua lified pers onnel onl y . ■ I f install ing the Switch u nit in a stack wit h SuperStac k II Hub units , the Switch 1100 u nit must be insta l led below the nar r o wer H ub units. ■ The un it shoul d n[...]

  • Pagina 37

    Imp or tant S afe ty Inform at ion 37 ■ Franc e and Peru onl y This un it can not be p owered from IT † suppli es. If your supplies a re o f I T t ype, th is un it must be power ed by 230V ( 2P+T) via an isolati o n transf ormer rat i o 1:1, wi t h t h e se condary connec tion point label l ed Neutra l, conn e cted directly to earth (g r ound )[...]

  • Pagina 38

    38 A PPENDIX A: S AFETY I NFORM ATION L ’in form atio n de Séc uri té Impo rtan te ■ L'insta llation et la dépose de ce gr o upe doive nt être conf iés à un pers onnel qua l if i é. ■ Si v ous enta ssez l'u nité Swi tch avec l es u n ités Su perStack II Hub, l'unit é Sw i tch 1100 do it être instal l ée en dessou s [...]

  • Pagina 39

    L’i nfor mat ion de S écur ité I mport ant e 39 que si l 'équipem ent auquel il est r ac cor dé f onctionne da ns les m êmes condi tions. ■ Fra nce et P érou unique ment: Ce groupe ne pe ut pas être al imenté par un dispositif à impéda nce à la ter r e . Si vos a liment ations sont du type impéda nce à l a t err e, c e groupe [...]

  • Pagina 40

    40 A PPENDIX A: S AFETY I NFORM ATION Wic hti ge Sicherh eitsinforma t ion en ■ Die Instal lation und der Ausba u des G eräts dar f nur durch Fach pers onal erfo lgen . ■ W enn die Switch 1100 Ein heit i n ein er Stap el mit ander en Super Stac k II Hub E inheit en eingeba ut werden soll, mu ß die Sw itch 1 100 Einhe it unter die schm aleren [...]

  • Pagina 41

    B P IN - OUTS Null Mode m Cable 9-pin t o RS-23 2 25-p i n PC- A T Seri al Cab le 9-pin t o 9-pin 169 50ua. bk Pa ge 4 1 T hu rsday, A ugus t 27, 19 98 11 : 55 AM[...]

  • Pagina 42

    42 A PPENDIX B: P IN - O UTS Modem Cable 9-pin t o RS-23 2 25-p i n RJ45 P i n Assign ments Pi n assignment s are id entic al for 10B ASE-T and 100BASE- TX RJ45 co nnectors Ta b l e 6 Pin assi gnments Pin Number Signal Functio n Ports c onfigu red as M DI 1 TxData + Tran smit dat a 2 TxData – Tran smit dat a 3 RxD ata + Receiv e Data 4 Not as si [...]

  • Pagina 43

    C T ECHNI CAL S PECIFICATIONS Physic al Dimensio ns Heigh t: 76mm (3.0 i n.) x Widt h: 483mm (19.0 i n.) x Dept h 300mm (12.0 in. ) Weight : 4.4kg (9 .7lbs ) Envir onment al Requir ements Operat ing T empe ratur e 0° to 50 °C ( 32° to 122 °F) Stor age T emperatu re –10° t o +70° C ( 14° to 158 °F) Operat ing Hum idity 10 t o 95% re lati v[...]

  • Pagina 44

    44 A PPENDIX C: T ECHNICAL S PECIFICATIONS Stan dards Supp orte d SN MP ■ SNMP protoc ol (RFC 1157) ■ MIB-I I (RFC 1213) ■ Bridge MIB ( RF C 14 93) ■ Repeate r MIB (RFC 1516) ■ VLAN MIB (RFC 1573) ■ RMON MIB (RFC 1271) ■ BOOTP (RFC 951) T erminal Emul ation ■ Telnet (RFC 85 4) Pro t oc ols Us ed for Adm inist rati on ■ UDP (RF C 7[...]

  • Pagina 45

    D T ECHNI CAL S UPPO RT 3Com pr ovi des easy a ccess t o techn ical supp ort infor mation t hrough a vari ety of serv ices. Th is app endix d escrib es these s ervic es. Inform ation contained in this a p pendix i s correct at t ime of p ublicatio n. For the ve ry latest , 3 Com re commen ds that you acces s the 3Com Co rporati on World W ide We b [...]

  • Pagina 46

    46 A PPENDIX D: T ECHNICAL S UPPORT T o connect t o t he 3Co m F TP site, en ter th e foll owing in form ation in to yo ur F TP clie nt : ■ Hostname: ft p. 3c om .c om (or 19 2.156. 136. 12 ) ■ Username: anonym ous ■ Passw or d: <you r In tern et e- mail add re ss > A user na me a nd passwor d are not needed with Web b r ows er softw a [...]

  • Pagina 47

    Suppor t from Your Net work Su ppl ier 47 3ComFa cts Autom ated Fax Service The 3ComFac ts aut omated fa x servic e pr ovides techni cal art ic l es, diagr a m s, and trou bleshooting instruct ions on 3C om produc t s 24 hour s a day , 7 d ays a week. Call 3 ComFact s using yo ur T ouch- T one telep hone: 1 408 7 27 7021 Support fr om Y our Net wor[...]

  • Pagina 48

    48 A PPENDIX D: T ECHNICAL S UPPORT Below is a li st of wo rldwide tech nical tel ephone support numbe rs: Count r y Tel ephon e Nu mber Count ry Tel eph one Nu mber Asi a Paci fic Rim Austra lia China From any where in Chi na: From Sha nghai: Hong Kong In dia Indones ia Ja pan Ma la ysi a 1 800 678 515 86 21 6350 1590 10 800 3656 800 93 3 486 61 2[...]

  • Pagina 49

    Retu r ni ng Produc t s for Rep air 49 Retu rning Produ cts fo r Rep air Before you send a pr odu ct directly t o 3Com for repair , you must f i rst obtai n a Retur n Ma t er i als Au thorization (RMA) n umber . Pr o ducts sent t o 3Com without RMA number s will be ret urne d to the se nder un opened , at th e sender ’ s exp ense. T o ob t ai n a[...]

  • Pagina 50

    50 A PPENDIX D: T ECHNICAL S UPPORT 169 50ua. bk Pa ge 5 0 T hu rsday, A ugus t 27, 19 98 11 : 55 AM[...]

  • Pagina 51

    G LOSSARY 10B A SE- T T he IEEE specific a ti on f or 10M bps Ether net over Category 3, 4 or 5 twist ed pair cable. 100B ASE- FX The IEEE spec ifica tion for 100 Mbps Fast Et hernet over fib er -optic ca ble. 100BA SE-T X Th e IEEE sp ecif icatio n for 100 Mbps Fast Et hernet over Categor y 5 t wis te d- pai r ca ble . auto- negoti at ion A fea tu[...]

  • Pagina 52

    52 G LOSSARY broa dca st st orm M u ltip le simultan eous br oadcast s that ty pic ally absor b all the avai lable netw ork bandwidt h a n d can cau se a netw ork t o fail. Broadca st st orms c an b e due t o fa ul ty net work de vic es. coll ision A te r m used to describe t w o col l iding packet s in an E the rne t network. Collision s are a par[...]

  • Pagina 53

    G LOSSARY 53 hub A device that r egen er ate s LAN t raf fic so that the tr ansmissio n dis tance of t hat signal c an be exte nded. Hubs ar e sim i lar t o re peater s, in that they c onnect LANs of t he sam e type; howeve r t h e y c onnect mor e LANs than a r epeat er and ar e gener ally more s ophist icated. IEEE I nstitute of Electri c al and [...]

  • Pagina 54

    54 G LOSSARY MA C ad dress M edia Access Cont r ol address; also c a lled ha r dware or phy sical address. A laye r 2 ad dr ess a ssociated with a particular networ k device . Most devic e s t h a t c onnect to a LAN ha ve a MA C address assi gned to t hem as they are used to identi fy o ther device s in a n etwork . MAC addr esses ar e 6 byt es lo[...]

  • Pagina 55

    G LOSSARY 55 SN MP Si mple Networ k M anagement Pr otoc ol. The c urren t IETF stand ard protocol for ma naging de vices on a n TC P/IP netw ork. stack A group of networ k device s that are int egrated t o form a single logi cal devic e. swi tch A de vice tha t in terco nnect s se ver al LA Ns to fo rm a si ngle log ica l L AN that comprises o f se[...]

  • Pagina 56

    56 G LOSSARY 169 50ua. bk Pa ge 5 6 T hu rsday, A ugus t 27, 19 98 11 : 55 AM[...]

  • Pagina 57

    I NDEX Numbers 10BASE- T ports 13 10BASE- T/ 100BASE- TX ports 13 3C num be r 15 3C om bul le tin b oa rd s erv ic e (3 Com BB S) 46 3Com URL 45 3ComF acts 47 A auto- neg otiat ing por ts 1 3 B bull etin boar d ser vice 46 C cab le choos ing the cor rec t 31 Matrix 16 max imum lengt h 13, 21 pin- outs 41 conso l e port 15 conve nt i ons noti ce ic [...]

  • Pagina 58

    58 I NDEX RJ45 42 ser ia l cab le 4 1 pin- outs 41 po rts 10BASE- T 13 10BASE- T/ 100BASE-T X 13 au to-nego tiat i ng 1 3 co nsole 15 matrix 16 powe r socke t 15 powe ring-up a S w it ch 11 00 30 pro duct name 15 R rack mounti ng a Sw itch 1100 24 Redunda nt Po wer System . See RPS re turning p roduc t s for r epa ir 49 RPS 15 co nnecti ng 30 soc k[...]

  • Pagina 59

    3C om Co r pora t io n L IMITED W ARRANTY S UPER S TACK ® II S WITCH 1100 H ARDWA RE 3Co m warrants thi s hardware p r od uct t o be free from defect s in workma nship and mat erials, und er normal use a nd s er vice, for the following le ngth of time from the d a te of pur c h a se fr om 3Com o r its a uth or iz e d re sell er : 3Com’s s ol e o[...]

  • Pagina 60

    Dead- or D efective- on-Arrival. In the e vent a p r oduc t co mpletely fails t o fun ction or exhibi ts a defect in mater i als o r wor kmanship wi thin the first forty-eight (48) hours of i ns t allatio n but no l ater t h a n thi r ty (30 ) days aft e r the date of purc hase, and th i s is ve rified by 3Com, i t will be c onsidered dead - or de [...]

  • Pagina 61

    EMC S TATEMENTS FCC S TA TEMENT T h is equi pment has be en tested and f ound to compl y with t he lim its for a Class A digital de vice, pursuant to part 15 o f the FCC r ules. These l imits a re designe d to provi de re a sonab le protect i on a gain st harmful int erfe ren ce wh en t he eq uip men t is o per ate d in a c om merc ial envi ronm en[...]

  • Pagina 62

    169 50ua. bk Pa ge 6 2 T hu rsday, A ugus t 27, 19 98 11 : 55 AM[...]