3Com 3C16981 manual

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Buen manual de instrucciones

Las leyes obligan al vendedor a entregarle al comprador, junto con el producto, el manual de instrucciones 3Com 3C16981. La falta del manual o facilitar información incorrecta al consumidor constituyen una base de reclamación por no estar de acuerdo el producto con el contrato. Según la ley, está permitido adjuntar un manual de otra forma que no sea en papel, lo cual últimamente es bastante común y los fabricantes nos facilitan un manual gráfico, su versión electrónica 3Com 3C16981 o vídeos de instrucciones para usuarios. La condición es que tenga una forma legible y entendible.

¿Qué es un manual de instrucciones?

El nombre proviene de la palabra latina “instructio”, es decir, ordenar. Por lo tanto, en un manual 3Com 3C16981 se puede encontrar la descripción de las etapas de actuación. El propósito de un manual es enseñar, facilitar el encendido o el uso de un dispositivo o la realización de acciones concretas. Un manual de instrucciones también es una fuente de información acerca de un objeto o un servicio, es una pista.

Desafortunadamente pocos usuarios destinan su tiempo a leer manuales 3Com 3C16981, sin embargo, un buen manual nos permite, no solo conocer una cantidad de funcionalidades adicionales del dispositivo comprado, sino también evitar la mayoría de fallos.

Entonces, ¿qué debe contener el manual de instrucciones perfecto?

Sobre todo, un manual de instrucciones 3Com 3C16981 debe contener:
- información acerca de las especificaciones técnicas del dispositivo 3Com 3C16981
- nombre de fabricante y año de fabricación del dispositivo 3Com 3C16981
- condiciones de uso, configuración y mantenimiento del dispositivo 3Com 3C16981
- marcas de seguridad y certificados que confirmen su concordancia con determinadas normativas

¿Por qué no leemos los manuales de instrucciones?

Normalmente es por la falta de tiempo y seguridad acerca de las funcionalidades determinadas de los dispositivos comprados. Desafortunadamente la conexión y el encendido de 3Com 3C16981 no es suficiente. El manual de instrucciones siempre contiene una serie de indicaciones acerca de determinadas funcionalidades, normas de seguridad, consejos de mantenimiento (incluso qué productos usar), fallos eventuales de 3Com 3C16981 y maneras de solucionar los problemas que puedan ocurrir durante su uso. Al final, en un manual se pueden encontrar los detalles de servicio técnico 3Com en caso de que las soluciones propuestas no hayan funcionado. Actualmente gozan de éxito manuales de instrucciones en forma de animaciones interesantes o vídeo manuales que llegan al usuario mucho mejor que en forma de un folleto. Este tipo de manual ayuda a que el usuario vea el vídeo entero sin saltarse las especificaciones y las descripciones técnicas complicadas de 3Com 3C16981, como se suele hacer teniendo una versión en papel.

¿Por qué vale la pena leer los manuales de instrucciones?

Sobre todo es en ellos donde encontraremos las respuestas acerca de la construcción, las posibilidades del dispositivo 3Com 3C16981, el uso de determinados accesorios y una serie de informaciones que permiten aprovechar completamente sus funciones y comodidades.

Tras una compra exitosa de un equipo o un dispositivo, vale la pena dedicar un momento para familiarizarse con cada parte del manual 3Com 3C16981. Actualmente se preparan y traducen con dedicación, para que no solo sean comprensibles para los usuarios, sino que también cumplan su función básica de información y ayuda.

Índice de manuales de instrucciones

  • Página 1

    ® http://www.3com.com/ Super Stack ® II Swit ch 3300 User Guid e 3C16980, 3C1698 1 Part No. DUA1698 -0 AAA05 Publ ished Apr il 1999 169 80u a. bk Page 1 Frida y, Ap r i l 30, 19 99 9: 03 AM[...]

  • Página 2

    3Com Cor poratio n 5400 Bayfr ont Pl aza Santa Cl ara, Calif or nia 95052- 8145 Copyri ght © 199 9, 3Com T echnol ogies . All r ight s reserved . No part o f this do cume ntation ma y 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 ss[...]

  • Página 3

    C ONTENT S A BOUT T HIS G UID E Conventions 8 Related Doc umentation 9 Y ear 2000 Compliance 10 Documentation Comm ents 10 1 I NTR ODUC ING THE S WIT CH 3300 About the SuperStack II Switch 3300 12 Summary of Fea tur es 1 2 Switch 33 00 — F ront View De tail 13 10BASE- T/ 100BASE-T X Ports 13 LED s 13 Switch 33 00 — R ear Vi ew Deta il 15 Unit I[...]

  • Página 4

    iv Placing Units On T op of Ea ch Other 25 St acking U n its 26 St acking T wo Units 26 St acking Up T o Four Un its 27 The Power -up Sequence 2 9 Connectin g a Re dundant Pow er System 29 Powering-up the Sw itch 3300 29 Checking for Correct Opera tion 29 Choosing the Correct Cables 30 Solving Pr ob lems Indicated by LEDs 31 Managing the Switch 32 [...]

  • Página 5

    v G LOSSARY I NDEX 3C OM C O RPORATION L IM IT ED W A RRA NTY EMC S TATEM ENTS 169 80ua. bk Page v Fri da y, Apr i l 30, 19 99 9:03 AM[...]

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    vi 169 80ua. bk Page v i Fr i day, Ap r i l 30, 19 99 9:03 AM[...]

  • Página 7

    A BOUT T HI S G UIDE This gui d e pr ovid es all the i nformation you need to ins tall and use a Super Stack ® I I Swit ch 330 0 un it with def ault set tings. I f you want to chan ge t he way t he S wit ch w orks us ing m anage men t softwa r e, r efe r to the “Su perSt ack II Switc h Management G u ide” ( part nu mber DUA1695 -0 BAA0x ). The[...]

  • Página 8

    8 A BOU T T HIS G UI D E Conve ntions T able 1 an d T ab le 2 list co nven tions th at are used t hrougho ut th is guide . Ta b l e 1 Notice Icons Ic on Notice Type Descripti on In form atio n note In form atio n th at d escri bes i mporta nt fe atures or ins truc tio ns Cauti on Informat i o n that al e rts y ou to pot ential loss of data or poten[...]

  • Página 9

    Relat ed Documentati on 9 Related Do cumen tati on In addi tion t o thi s guid e, ea ch Sw itch 3300 do cu ment set in cludes t he fo llow i ng : ■ Ma nagemen t G uide (Pa rt N umbe r DU A1695- 0BA A0x) This gu ide contai ns all the ma nagem ent inform ation for the Swi tch. ■ Quick Refe rence Guide (Part Number DQA1698-0AAA0x) This g uide cont[...]

  • Página 10

    10 A BOU T T HIS G UI D E I n additi on, ther e ar e other public ations you may fi n d use ful: ■ Documentati on accompanying th e Expansion M odules. ■ D ocume ntat ion acc om pany ing the Ad vanc ed Redu ndan t Po wer System. Y ear 2000 Compli ance For in form atio n on Y ea r 2000 co mplia nce an d 3C om products , visit the 3Co m Y e ar 20[...]

  • Página 11

    1 I NTR ODUCI NG TH E S WITCH 3300 This c hapter c o ntai ns intr oductory i nformatio n ab ou t the Switch an d how it ca n be u sed in y our ne tw ork. I t cover s the f ollow ing topi cs : ■ Abo ut th e Su perSt ack I I Sw itch 33 00 ■ Switch 33 00 — Front View D e tail ■ Swi tch 3300 — Rear View Detail ■ Netwo rk C onfig uration Exa[...]

  • Página 12

    12 C HAPTER 1: I NTRODUCING THE S WITCH 3300 Ab out the Su per Sta ck II Sw itch 330 0 The Supe rStack ® II Sw itch 330 0 c onne cts you r exi sting 10Mbp s dev ices, conne cts h igh-p erform ance work groups with a 100M b ps bac kbon e or serve r conn ection, a nd co nnec ts pow er use rs to dedicat ed 10 0Mbps port s — a ll in o ne switc h. In[...]

  • Página 13

    Switc h 3300 — Front View Det ail 13 Sw itch 33 0 0 — Fr o nt Vi ew Deta il Figure 1 Switch 3300 — fr ont view 10B ASE - T/ 100B AS E-TX P orts The Swit ch has 12 or 24 au to-neg otiatin g 10BASE-T/ 1 00BASE-TX p orts conf igur ed as MDIX ( cr oss-over) . These p orts ca n be set to 10 BASE-T half duplex , 10 BASE- T full du ple x, 100B AS E-[...]

  • Página 14

    14 C HAPTER 1: I NTRODUCING THE S WITCH 3300 Ta b l e 3 LED behav ior LED Color In dica tes Port S tatus LEDs * * I f your S witc h has 24 10 BASE- T/100B ASE-T X por ts, t hes e por ts ar e number ed 1 to 24 . If y o u r S witch has 12 10 BASE- T/100B ASE-TX por ts, the se port s a re nu mber ed 1 to 12 . Fo r bot h m odels , port s su pplied thro[...]

  • Página 15

    Sw itch 3300 — Rear Vi ew Detail 15 Swi tch 33 00 — R ear View Deta il Figure 2 Switch 3300 — r ear view Unit In fo rmatio n Label This la bel shows the following: ■ The 3C om p r o duct name of the S witch ■ The 3Com 3C numb er of the Swit c h ■ The uni que MAC addre ss (Ethe r net add ress ) of the Swit ch ■ The ser ial number of th[...]

  • Página 16

    16 C HAPTER 1: I NTRODUCING THE S WITCH 3300 Cons ole Port The con sole po rt allows you to c onnect a termina l and pe rform remot e or local out-of -ban d ma nageme nt. Th e con sole port uses sta ndard 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. Expans ion Modu le Slot Y ou can use thi s slot to inst[...]

  • Página 17

    Network Conf iguration Ex amples 17 Net work Config uration Exam ples The f ollowi ng illu stra tions s how some example s of how the Swit ch can be us ed i n yo ur ne t wor k. Sw itch 3300 as a Segm entati on S wi tch The example i n Fi gure 3 shows how a Swit ch 330 0 sta ck can segmen t a netw ork of shared 1 0Mbps and 100 Mb ps con nect ions. T[...]

  • Página 18

    18 C HAPTER 1: I NTRODUCING THE S WITCH 3300 Sw itch 3300 as a Coll apsed Backbon e Sw itc h The example i n Fi gure 4 shows how a Swit ch 330 0 st ack can act as a backb one f or bo th sha r e d a nd sw itched net work segment s. Figure 4 Using the Swit ch as a collaps ed backbone 1698 0 ua. bk Pa ge 18 F ri day , Ap ri l 30 , 19 99 9 : 03 A M[...]

  • Página 19

    Network Conf iguration Ex amples 19 Sw itch 3300 as a D eskt op S wi tch The example i n Fi gure 5 shows how a Swit ch 330 0 c an be u sed for a group of users th at require dedic ated 1 0Mbp s or 100M bps conn ect ions to t he desktop. The Switch 33 00 stack has a SuperStac k II Switc h 1000BA SE- SX Module that allows it t o provide a Gigab it E [...]

  • Página 20

    20 C HAPTER 1: I NTRODUCING THE S WITCH 3300 Config uration Rul es fo r Fast E t her ne t The t opolo gy rule s for 100 M bps Fast Et her net are sl ightly di ff erent to those f or 10 Mbps E ther net. Fi gure 6 illus trates th e key topolo gy rules an d pr ov ides examp les of how they allow for la rge-sc ale Fast Et h ernet netw orks. Figure 6 Fa[...]

  • Página 21

    Config ur a tion Rules with Full Dupl ex 21 The key to p olog y rules are: ■ Ma ximum UTP c able 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 ll[...]

  • Página 22

    22 C HAPTER 1: I NTRODUCING THE S WITCH 3300 1698 0 ua. bk Pa ge 22 F ri day , Ap ri l 30 , 19 99 9 : 03 A M[...]

  • Página 23

    2 I NSTALLI NG TH E S WITCH This ch ap ter co ntain s the inform ation y ou ne ed t o insta ll and se t up t he Swi tch. It c over s the foll owing topi c s: ■ Choosing a Suitable Si te ■ Rack- mo unti ng ■ Placi n g Units On T op of Each Other ■ Stack ing Units ■ The Power -up Sequenc e ■ Cho osing the C orr ect Cable s ■ Solvi ng Pr[...]

  • Página 24

    24 C HAPTER 2: I NSTALLING THE S W ITCH Choosin g a Suita ble Si te The Swit ch is suite d for use in an of fice envir onment wher e it can be mount ed in a standa rd 19- inch eq uipm ent rack , or free stand ing. Alternativ ely , the Swit c h ca n be rack-mo unted in a wir ing clos et or equipm ent r o om. A r ack -moun ting k it, cont aini ng two[...]

  • Página 25

    Plac i n g Un its On Top of Each Othe r 25 Figure 7 Fitting a brac ket for r a ck mount ing 3 In se rt th e th ree sc rew s an d t ig ht e n w ith a s ui tab le sc rew d riv er . Y ou must use the sc rews sup p lied with the mou nting bracket s. Damage caused to the uni t by using incorrec t scr ews inval idates y our w arrant y . 4 Repea t step s [...]

  • Página 26

    26 C HAPTER 2: I NSTALLING THE S W ITCH Sta cki ng Un its Unit s in the Switch 11 00/3300 fam ily ca n be stack ed toge the r and t hen tr eated as a si ngle manageabl e unit with one IP addr ess. Y ou can stac k Switch unit s together in two way s: ■ The matr ix port on th e rear of th e Switch allows yo u to connec t two Swi tch units b ac k -t[...]

  • Página 27

    Stack ing Un its 27 Figure 8 A stack of two units Stac k ing Up T o Four Units Y ou can stac k up to fou r Switch unit s with a sing le SuperSta c k II Switc h Ma trix Modu le and the app r o pr iate num ber of M atrix Ca bles . Y ou only need one Matrix Module for each stac k. T o stack up to fo ur Switch units : 1 Power -of f all the unit s. 2 Ar[...]

  • Página 28

    28 C HAPTER 2: I NSTALLING THE S W ITCH 5 If you u se th e mana gem ent software of the uni ts: ■ Ensure tha t all th e unit s hav e the same ve rsion o f m anage men t software ■ Ensu re th at you r e-conf igure th e stack-wide f eatur es on all the uni t s For m ore info rmation about m anageme nt so ftwa r e , see “ M anaging t he Swi tch [...]

  • Página 29

    The Power-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 powered- up and ready for operat ion. Co nnecti ng a Redund a n t Pow er Syst em Y ou can c onn ect a Super Stac k II Ad vanc ed Red und ant Po we r System (part n umber 3C1607 1) to the Swi tch. This u nit, which is also known[...]

  • Página 30

    30 C HAPTER 2: I NSTALLING THE S W ITCH I f ther e i s evidenc e of a prob lem, se e “ Sol ving Pr ob lems I ndicat ed b y LEDs ” on pa ge 31 . Choosin g the Correct C ables All of the port s on the fr ont of the Swi t ch 33 00 are c onfigur ed as MDIX (c ro ss-over ). If you want to make a c onnectio n to an other M DIX po rt, you need a c ros[...]

  • Página 31

    Solvi ng Probl ems Indicat ed by LEDs 31 Solving Problem s Indicated by LEDs If the LEDs on the Switch in dicat e a pr oblem , r e fer to Ta b l e 5 whic h contai ns a list of problems and su ggest ed solut ions. For i nform atio n ab out solv ing p roblem s wh en m ana ging the Sw itch , refer to t he Pr oblem So lving chapter in the “Su perSta [...]

  • Página 32

    32 C HAPTER 2: I NSTALLING THE S W ITCH Manag ing th e Sw itch The S witch contai n s so ftwar e that allows yo u to chan ge and monitor the way it wo rks. This mana gem en t so ft ware is not requi red to ge t the Swit ch w ork ing, b ut if y ou d o us e it, y ou ma y imp rove t he efficie ncy o f the Swi t ch and ther efor e impr ove the over all[...]

  • Página 33

    A S AFETY I N FORM ATION Y ou must read the follow ing saf ety in formati on be fore carryi ng out any install ation or removal of c ompone n ts, or an y m aintenan ce proc edures on the Switch 330 0. WARNI NG : Warning s co ntain direct ions that yo u m ust fo llow for your per sonal sa fety . Fo llow all dir ectio ns care fully . Y ou must read t[...]

  • Página 34

    34 A PPENDIX A: S AFETY I NFORM ATION Importa nt Safe ty In formati on ■ Install ation and remo val of the uni t mu st be ca rried ou t by qua lified pers onnel o nly . ■ If in stallin g the Switch u nit in a stack with SuperSt ack I I Hub units, the Switch 33 00 uni t must be inst alled below t he nar r ow er Hu b uni ts. ■ The un it sho uld[...]

  • Página 35

    Imp or ta nt S afe t y In form at io n 35 ■ Franc e an d Peru onl y: This un it ca nnot be p owered from IT† sup plies. If y our sup plies are of IT ty pe, thi s unit mu st b e powe red by 2 30V (2 P+ T) via a n isola tion transf ormer ratio 1:1 , wi th the secon dary co nnec tion point l abelled Neut ral, c onnected di r e ctly to ear th (g r [...]

  • Página 36

    36 A PPENDIX A: S AFETY I NFORM ATION L ’ informat ion de Séc u ri té Importa nte ■ L' install ation et la dépo se d e ce gr oupe doivent êt re confi és à un pers onnel q ualif ié. ■ Si vo us entas sez l'unité Swi tch avec les unités Su perStack II Hub, l'unit é Switch 330 0 do it être instal lée en dessous des un i[...]

  • Página 37

    L’i nform ation de S écuri té I mport ante 37 ■ L ’appar eil fonction ne à une tensio n extrêmement b asse de sécu rité qui est co nforme à la no rm e CEI 950. C es cond itions n e sont maint enues q ue si l 'équipe me nt auque l il e st racc ordé fonc tionne dans les m êmes cond itions. ■ Franc e et Pérou uniq uement: Ce gr[...]

  • Página 38

    38 A PPENDIX A: S AFETY I NFORM ATION Wi ch ti ge Sicherh eitsinfor mat ion en ■ Die In stallation und der Ausbau des G eräts da rf n ur durch Fach per sonal erfol gen . ■ W enn die Switch 3 300 Einheit i n einer St apel mit an der en SuperStac k II Hub E inh eiten e ingebau t werden soll, muß di e Sw itch 33 00 Einheit unter die schm a leren[...]

  • Página 39

    B P IN - OU TS Nu ll Modem Cable 9-pin t o R S-232 25 -p in PC -A T Se ri al C a ble 9-pin t o 9 -pin 1698 0 ua. bk Pa ge 39 F ri day , Ap ri l 30 , 19 99 9 : 03 A M[...]

  • Página 40

    40 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 assignments are id entical f o r 10BA SE-T and 100BASE- TX RJ45 co nnector s Ta b l e 6 Pin as s ig nments Pin Number Signal Funct i o n Ports configu r ed as M DI 1 TxData + Tra nsmit dat a 2 TxData – Tra nsmit dat a 3 RxD ata + Receiv e Data 4 Not [...]

  • Página 41

    RJ45 P in Assi gnments 41 Ports configu r ed as M DIX 1 RxD ata + Receiv e Data 2 RxData – Receive Data 3 TxData + Tra nsmit dat a 4 Not as signed 5 Not as signed 6 TxData – Tra nsmit dat a 7 Not as signed 8 Not as signed Ta b l e 6 Pin as s ig nments Pin Number Signal Funct i o n 1698 0 ua. bk Pa ge 41 F ri day , Ap ri l 30 , 19 99 9 : 03 A M[...]

  • Página 42

    42 A PPENDIX B: P IN - OU TS 1698 0 ua. bk Pa ge 42 F ri day , Ap ri l 30 , 19 99 9 : 03 A M[...]

  • Página 43

    C T ECHNI CAL S P ECIFICATIONS Physic al Dimensio ns Heigh t: 76 mm (3.0 in.) x Widt h: 483mm (19.0 in.) x Depth 300mm (12. 0 in.) Wei ght: 4kg (8.8 lbs) Envir onmental Requ ire ments Oper ating Tempera ture 0° to 50 °C (32° t o 122° F) Stora ge Temperat ure –10° to +70 °C (14° to 158°F) Oper ating Humidi ty 10–95% relat ive humidity, n[...]

  • Página 44

    44 A PPENDIX C: T ECHNICAL S PECIFICATIONS Standar ds Sup ported SN MP SN MP prot ocol (RF C 1157) MIB-I I (RFC 121 3) Bri dge MIB (RFC 1493) Repeat er MI B (RF C 1516) VLAN M IB ( RFC 15 73) RMON MIB (RFC 1271) BOOTP ( RFC 95 1) T er min a l Em ul at io n Teln et (RFC 854) Pr otocols Used f or Adm ini stra t ion UDP ( RFC 768) IP (R FC 791) ICM P [...]

  • Página 45

    D T ECHNI CAL S UPPO RT 3Co m provide s eas y acce ss to t echn ical supp ort i nforma tion t hrough a vari ety of serv ices. This app endix des cribes these se rvices . Infor mation co ntained in t his appendix is co r r ect at time o f publ i cat ion. For the mos t r ecent i nformati on, 3Com r ecommends t hat you a ccess the 3Com Corpor ation W [...]

  • Página 46

    46 A PPENDIX D: T ECHNICAL S UPPORT 3C om F TP S it e Do wnlo ad drivers, p atches, softwa re, a nd MIB s across the Inter net from the 3Com publ ic F TP site . This serv ice is av aila ble 24 hour s a day , 7 day s a week . T o c on n ect to t he 3C o m F T P s ite , e n ter th e fo llo wi ng i nfo rm a tion into yo ur F T P client : ■ Hostname:[...]

  • Página 47

    Suppor t f rom Yo ur Network Suppl ier 47 Acce ss by Digi ta l Mo dem ISDN users ca n di al in to the 3Com BB S using a di gital mo dem f or fa st access up t o 64 K bp s. T o acce ss the 3Com BBS usin g ISD N, ca ll the following nu mber : 1 847 2 62 6000 3Com Fa cts Autom ated Fax Service The 3Com Fa cts a utomat ed fax s ervice pr ovides tec hni[...]

  • Página 48

    48 A PPENDIX D: T ECHNICAL S UPPORT When you co ntact 3Com for a ssistance, have the foll owing inf orma tion r eady: ■ Product m odel n ame , part num ber , and serial num be r ■ A list o f system hardware an d softw ar e, inc luding revision l evels ■ Diagno stic error messa ges ■ Detai ls abou t recen t conf igur ation chan ges, if appli[...]

  • Página 49

    Retu rning Produc t s for Re pair 49 Retu rning Products fo r Rep ai r Before you send a produc t directly t o 3Com fo r repair , y ou m ust fir st obtai n an au thoriz ation n um ber . Products sent to 3Com wi thout author ization num ber s will b e return ed t o the se nder u nopen e d, at th e sender ’ s ex pense. T o obtain an au thoriz ation[...]

  • Página 50

    50 A PPENDIX D: T ECHNICAL S UPPORT 1698 0 ua. bk Pa ge 50 F ri day , Ap ri l 30 , 19 99 9 : 03 A M[...]

  • Página 51

    G LOSSARY 10B ASE - T The I EEE specific ation for 1 0Mbps Ether ne t over Cat egory 3 , 4 or 5 twist ed pai r ca ble. 100B A SE-FX The IEEE spec ifica tion for 100 Mbps Fast Et h ernet over f iber -optic c able. 100BA SE -TX The IEEE spec ification fo r 1 00Mbps F ast Ethernet o ver Category 5 t wist ed - pai r ca ble . aut o-ne gotiat ion A fea t[...]

  • Página 52

    52 G LOSSARY broa dc ast st or m Multip le simultan eous br oadcast s that t y pic ally abs orb all the ava ilable netw ork ba ndwidt h and ca n cau se a ne twor k to fail. Broadc ast stor ms c an be d ue to f aul ty net wor k de vic es. coll ision A term used to de scribe two co lliding pack ets i n an Ether ne t netwo rk. Collision s are a pa rt [...]

  • Página 53

    G LOSSARY 53 hub A device that r egenerat es LAN traf fic so th at the tran smissi o n dis t anc e of t hat signal can be extended . Hubs ar e similar to r epeater s, in that they con n ect LANs of th e same ty p e; howe ver they connect m or e LANs than a r epeater and ar e generall y more sophi sticat ed . IEEE I nstitute of Elect rical and Elect[...]

  • Página 54

    54 G LOSSARY MAC addr es s Me dia Access C ontrol address; also calle d hardwar e or physical add r ess. A laye r 2 a ddress asso ciated with a pa rticular net work device. Mo st devic es th at conn ect to a LAN have a M AC address assigne d to the m as they ar e used to identi fy other device s in a network . M AC addr esses ar e 6 bytes long. MDI[...]

  • Página 55

    G LOSSARY 55 SN MP Si m ple Networ k Management Pr ot ocol. The curr ent IETF st andar d protoco l for m ana ging devices o n a n T CP/IP netwo rk . stack A grou p of net wor k devi ces tha t are integ rated t o form a sin gle logi cal devic e. STP See S p annin g T ree Pro tocol (STP) . sw itc h A de vice that interconne cts seve ral LANs to fo rm[...]

  • Página 56

    56 G LOSSARY 1698 0 ua. bk Pa ge 56 F ri day , Ap ri l 30 , 19 99 9 : 03 A M[...]

  • Página 57

    I NDEX Numbers 10BASE- T/100BASE- TX ports 13 3C nu mb e r 15 3Com b ul let in boar d servic e ( 3 Com BBS) 46 3Com K nowl e dgebase W eb Serv ices 45 3Com URL 4 5 3Co mFacts 47 A auto- negotiat ing por t s 13 B bu lletin boar d servi ce 4 6 C cab le choos ing the cor rect 30 Matrix 16 maximum lengt h 13, 21 pin- outs 39 conso le port 16 conve ntio[...]

  • Página 58

    58 I NDEX 10BASE- T/100BAS E-TX 13 au to-nego tiating 1 3 co nsole 16 matrix 16 powe r socke t 15 powe ring-up a S w it ch 3300 29 pr oduct name 15 R rack m o unting a Switch 3300 24 Redunda nt Power S y stem . See RP S re tur ning p roduc ts for r epair 49 RPS 15 co nnecti ng 29 soc k et 15 S s afe ty i nfor mati on Engli sh 34 Fr ench 36 German 3[...]

  • Página 59

    3Com Corpor ation L IMITED W ARRANTY S UPER S TACK ® II S WITCH 3300 H ARDWA RE 3Com w arrants thi s hardwa re prod uct to be f ree fro m defect s in work manship a nd mat erials, und er norma l use a nd service, for the f ollowing l engt h of time f rom the d ate of p urchase f rom 3Com o r its au thorized re se ll er : 3Com’s s ole oblig ation[...]

  • Página 60

    days aft er the date of purc hase, and this is ve rified by 3C om, it will be conside red dead- o r de fec tiv e- on- arr i val (DO A ) an d a r ep la cem ent s hal l b e pr ovi ded b y ad v ance r epl ace me nt . Th e r ep lac eme nt product will norma lly be shipped not later t han thr ee (3) bu siness da ys after 3 Com’s veri ficatio n of the [...]

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    EMC S TATEMENTS FCC S TA TEMEN T This equi pment has been te sted and f ound t o comply w ith the lim its for a Class A digital de vice, pursua nt to part 15 o f the FCC rules. T hese li mits ar e designed t o 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 en vir onm en[...]

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    1698 0 ua. bk Pa ge 62 F ri day , Ap ri l 30 , 19 99 9 : 03 A M[...]