3Com 3C16987 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 3C16987. 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 3C16987 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 3C16987 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 3C16987, 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 3C16987 debe contener:
- información acerca de las especificaciones técnicas del dispositivo 3Com 3C16987
- nombre de fabricante y año de fabricación del dispositivo 3Com 3C16987
- condiciones de uso, configuración y mantenimiento del dispositivo 3Com 3C16987
- 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 3C16987 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 3C16987 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 3C16987, 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 3C16987, 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 3C16987. 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 Sta ck ® II Switch 330 0 SM User Guide 3C1698 7 Part No. DUA1698 -7AAA01 Publ is h e d May 2000[...]

  • Página 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 reserved. No part of this docume ntation may be reproduced in any for m or by any me ans or us e d to make any d e rivativ e wor k (such as t ranslat ion, transfor mation, o r adapta t ion) w i thou t written pe rmi ss [...]

  • Página 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 Documentation Comm ents 10 Product Registration 10 1 I NTR ODUC ING THE S WITCH 3300 SM About the SuperStack II Switch 3300 SM 12 Summary of Featu re s 12 Switch 33 00 SM — Fr ont View D etail 13 10BASE- T /100B A SE-TX Ports 13 1000BASE- SX P ort 1[...]

  • Página 4

    2 I NSTALLING THE S WITC H Choosin g a Suitable S i te 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 Uni ts 27 The Power -up Sequence 29 Connectin g a Redundant P ower System 29 Powering-up the Switch 3300 SM 29 Checki ng fo r Co rr ect Operat i on 29 Choosing the Cor[...]

  • Página 5

    Support from 3C om 4 8 Return i ng Produc ts for Rep a ir 5 0 G LOSSARY I NDEX 3C OM C ORPORA TIO N L IMI TED W ARRANTY EMC S TATEM ENTS[...]

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    [...]

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    A BOUT T HI S G UI DE This gui de pro vid es all the in format ion you need to install and use a Super Stack ® II Swit ch 330 0 SM (3C 16987) unit w i th d efault se ttings. If you w ant t o change the wa y the S w i tch works usi ng mana geme nt soft ware, r ef er to th e “ SuperSta ck II S wit c h Ma nagement Guide ” . The gu ide is in t end[...]

  • Página 8

    8 A BOU T T HIS G UI DE Conve ntions Ta b l e 1 and Ta b l e 2 list conventi o ns that ar e used thr ougho ut this guide. Ta b l e 1 Notice Icons Ic on Notice Ty pe Descripti on In fo rmat io n no te In fo rmat io n t hat d esc ri bes i mpor ta nt fe atu res o r ins truct ions Cauti on Info rmat io n that ale rts y ou to potent i al lo ss of data o[...]

  • Página 9

    Relat ed Docu mentati on 9 Related Do cumen t ati on I n additio n to this guid e, each Swit ch 3300 SM document set in cludes t he fo llow ing : ■ Ma nagemen t Gui de This gu ide con tains all t h e ma nagem ent info r ma tion for t he Switc h. ■ Qui ck Refe rence Gui de This g uide cont ains a quic k summary of the har d war e and soft w a re[...]

  • Página 10

    10 A BOU T T HIS G UI DE In addi tion, the r e are ot her publi cations y ou may f ind us eful: ■ Doc umentat i on a ccom panying t he Ad vanced Redundan t Po wer System. Y ear 200 0 Compli a nce Fo r infor matio n on Y e ar 2000 compl i an ce and 3Com p r oduc ts, visit t he 3Co m Y ea r 2000 Web pa ge: http :/ /www. 3com .com /pro ducts /yr2 00[...]

  • Página 11

    1 I NTR ODUCING THE S WI TCH 3300 SM This c hapter c ontai ns intr oduct ory i nformatio n about the Swit ch an d how it ca n be use d in your networ k. It cov ers the f ollowin g topics : ■ Abo ut the S u perStack II Sw i tch 3300 S M ■ Switch 33 00 SM — Fr on t Vi ew Det ail ■ Switch 33 00 SM — Rear View Detail ■ Netwo rk Conf igurati[...]

  • Página 12

    12 C HAPTER 1: I NTRODUCING THE S WITCH 3300 SM Ab out the Su perS tack II Swi tc h 3 300 SM The Supe rStack ® II Sw i tch 3300 S M connec t s : ■ your existing 10Mbps de vices. ■ high-pe rform ance wo rkgroups wit h a 100M bps or 1000Mbp s backb one o r server connect ion. ■ users to dedicat ed 100M bps po rts in one switch. In addi tion, a[...]

  • Página 13

    Swit ch 3300 SM — Front View Detail 13 Swi tc h 3 300 SM — Fr o nt Vie w Detai l Figure 1 Switch 3300 SM — front view 10B A SE - T/ 100B ASE- TX Ports The Swit ch has 24 au to-neg otiat ing 10BASE- T/100BASE- TX ports conf igure d as MDIX (cross- over ). These ports can be set to 10BASE-T half duplex , 10BAS E-T full duplex, 1 00BA SE-TX ha l[...]

  • Página 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 at us LEDs Packet Yellow Packets ar e bei ng transm itt ed/ re ceive d on th e por t. Off No pack et s are be in g t ransm itt ed/re cei ve d on the port. Statu s Gr e en A link i s present , and the port i s enab led. Green flas hi ng A li nk is p[...]

  • Página 15

    Switc h 33 00 SM — Re ar View Detail 15 Swi tc h 3 300 SM — Re ar V ie w De tail Figure 2 Switch 3300 SM — r ear view Unit In form ation Label This la bel shows the following : ■ The 3C om p r oduct name o f the S witch ■ The 3Com 3C numb er of the Swit ch ■ The uni que MAC address ( Et hernet addr ess) of the Switc h ■ The ser ial nu[...]

  • Página 16

    16 C HAPTER 1: I NTRODUCING THE S WITCH 3300 SM Cons ole Port Th e co ns ole p ort all ows yo u to co nn ect a ter mi nal and pe rfo rm remo te or local out-of-b and m anagemen t. The console port uses standard n ull mode m cable and is set t o auto-baud, 8 data bits, no parity an d 1 stop bit. M atri x Po rt The Matrix Po rt al lows you t o: ■ S[...]

  • Página 17

    Network Conf igura tion Ex ampl e s 17 Net work Config uration Exam p les The f ollowi ng il lustra tion s show some ex ample s of how the Swit ch c an be us ed i n y o ur net wor k. Switch 3300 SM a s a Segm entati on Swi tch The example in Figu r e 3 shows how a Switc h 3300 SM stack can se gment a network of shared 10Mb ps,100M bps and 100 0Mbps[...]

  • Página 18

    18 C HAPTER 1: I NTRODUCING THE S WITCH 3300 SM Switch 3300 SM a s a Coll aps ed Back bone Sw itc h The exam ple in Figu r e 4 shows how a Swi t ch 33 00 S M st ack c an act as a backb one for both share d a nd switch ed netw ork segme nts. Figure 4 Using the Swit ch as a collaps ed backbone Switch 3300 SM stack Endstations on switched 10Mbps conne[...]

  • Página 19

    Network Conf igura tion Ex ampl e s 19 Switch 3300 SM a s a D esktop Swi tch The example i n Fi gure 5 shows how a S witch 330 0 S M can be u sed, within a stack, for a g r oup of users that require de dicated 1 0Mbp s or 100Mbps connecti o n s to th e deskto p. The 3300 SM Switch es pr ovide a Gigab it Eth ernet co nnecti on to a SuperS tack II S [...]

  • Página 20

    20 C HAPTER 1: I NTRODUCING THE S WITCH 3300 SM Config uration Rules fo r Fast E ther n et The t opology r ules for 100Mbps F ast Ether net are sl i ght l y different to those f or 10 M bps E thern et. Fi gure 6 illu str ates the key topolog y rules and pr ovi des exampl es of how th ey allo w for lar ge-sc ale F ast Ethernet netw orks. Figure 6 Fa[...]

  • Página 21

    Config urati on Rules with Full Duplex 21 The key to pology r ules are: ■ Ma ximum UT P cab l e le ngth is 100m (3 28ft) ov er Cat egory 5 ca ble. ■ A 412 m (1352ft) fib er r un is al l ow ed for con necti ng switch-to-sw itch, or endst ation - to- switch, usin g half-du plex 10 0BA S E-FX . ■ A tot a l n etwork spa n of 325 m (1066 ft) is al[...]

  • Página 22

    22 C HAPTER 1: I NTRODUCING THE S WITCH 3300 SM Config uration Rules fo r Gig ab it Eth er net Gigab it Ethe rnet i s designed to run ov er fou r media : ■ Singl e-mode f iber opt i c ca ble, w ith conn ections up to 5km . ■ Mul t imo de fibe r optic ca ble, wi th conne ction s up to 550 m. ■ Bala nced, shi elded c opper c a bling , with conn[...]

  • Página 23

    2 I NSTALLI NG TH E S WITCH This ch apter contain s the in f o r mati on you need to i nstall an d set up t he Swi tch. It cover s th e foll o win g to pics: ■ Choosing a Suitable Si te ■ Rack- mount ing ■ Placin g Units O n T op of E ach Othe r ■ Stack ing Units ■ The Power -up Sequence ■ Choosing the Corr ect Cables ■ Solving Pr obl[...]

  • Página 24

    24 C HAPTER 2: I NSTALLING THE S WITCH Choosin g a Suitable Si te Th e Switch is suite d for use in an off ic e envir o nme nt wher e it c an be mount ed in a st andard 19- i n ch equipm ent r ack, or free stan ding. Alter native ly , the Switch can be rack-m ounted in a wiring close t or equipm ent room . A ra ck-mou nt in g kit, con taining two m[...]

  • Página 25

    Plac ing Un its On Top of Each Othe r 25 Figure 7 Fitting a brac ket for rack mounti ng 3 In sert th e tw o scre ws a nd tig hte n w ith a suit abl e sc rewd ri ver . Y ou must use t he screws su pplied w ith the mounting b rackets . Dama ge caused to th e unit by using in correct screws i nva lidates y our warr anty . 4 Repea t steps 2 a nd 3 for [...]

  • Página 26

    26 C HAPTER 2: I NSTALLING THE S WITCH Sta ckin g Uni t s Unit s in the Switch 11 00/3300 f am i ly can be st ac ked toge ther an d then tr eat ed as a sing le manageable unit wi th one IP ad dr ess. The Mat rix Port o n th e rear of the Switch al lows you t o connect two Switch units back -to-bac k. For this y ou need a M atrix Ca ble (par t nu mb[...]

  • Página 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 sta ck up to f our Switch units usi ng a S wi tch 33 00 MM and the appr opr iate number of Matrix Cables. Y ou need on ly one SuperS tack II Sw itch 33 00 MM p er stack . T o stack up to fou r Switch u nits: 1 Po wer-off a ll th e unit s. 2 Arrang e th e uni t[...]

  • Página 28

    28 C HAPTER 2: I NSTALLING THE S WITCH 4 If you u se the managem ent softwa re of the un its: ■ Ensure tha t all the un i ts hav e the sa me versi on of ma nagem e nt software ■ Ensu re th at you re -confi g ur e the stack-wid e fea tur es on all the unit s Fo r m ore i nfo rma tio n a bou t m ana gem en t so ftw are, se e “ M anaging the Swi[...]

  • Página 29

    The Pow er-up Sequen ce 29 Th e Pow er - up Seq uen ce T he follow i ng se ctions describe how to get you r Switch 330 0 SM pow ered-up and ready f o r ope ration. Co nnect ing a Redund an t P ower Syst e m Y ou c an co nnect a SuperSt ack II A dvanced Redu ndant P ower S ystem (part n umber 3C 16071A) to t he Switc h. This unit , which is also k n[...]

  • Página 30

    30 C HAPTER 2: I NSTALLING THE S WITCH I f there i s evid ence of a pro blem, see “ Solv ing Pro blems In dicated by LEDs ” on page 31 . Choosin g the Co rr e ct Ca bles All of the ports o n the f ront of the Switch 3300 SM a r e co nfigured a s MDIX (cr oss-ov er). If y ou want to make a connec ti on to anot her MDIX port , you nee d a cr oss-[...]

  • Página 31

    Solvi ng Probl ems I ndicat ed by LE Ds 31 Solving Problems Indicated by LEDs If the LEDs on the Switch in dicate a problem, r efer to Ta b l e 6 which contai ns a list of problems a nd suggest ed solutions. For inf ormat i on a bout solving pro blems wh en man aging t he Swi tch, refer to the Pr ob lem So lving c hapter i n the “ Su perStack I I[...]

  • Página 32

    32 C HAPTER 2: I NSTALLING THE S WITCH Manag ing the Sw itch The S witch contai ns sof twar e that allows you t o chan ge an d monito r the way it wo rks. Th is mana gem en t s o ft ware is not required to g et the Switch wor king, b ut if y ou do us e it, you m ay i mprove t he efficienc y of the Swi tch and ther efor e i m pr ove the overal l per[...]

  • Página 33

    A S AFETY I N FORMA TION Y ou m ust read th e followi ng safet y informat ion before c arrying out any install ation or rem oval of c omponen ts, or an y main t enan ce procedures on the Switch 330 0 SM . WARN ING: Warn i ngs co ntain direction s that y ou must f ollow fo r your personal saf ety . Follow all dir ections c arefully . Y ou mus t re a[...]

  • Página 34

    34 A PPENDIX A: S AFETY I NFORM ATION Importa nt Safety In form atio n ■ Installa tion and remo val of the un i t mu st be car ried out by qua lified pers onnel o nly . ■ If in stall ing the Switch u nit in a stack with SuperStac k II Hub units, the Switch 3300 SM uni t must be installed b elow th e Hu b unit s. ■ The un it shoul d neve r be [...]

  • Página 35

    Imp orta nt S afe ty Inform at ion 35 ■ Franc e and Peru onl y: This unit can not be p owered fr om I T † supplies. If your supplies ar e of I T type, this unit m ust be power ed b y 230V (2P+T) via an isolati o n transf ormer rat i o 1:1 , with t h e se condary co nnec t ion point la belled Neut r al, c onnec t ed dire ctly to ea r th (g r oun[...]

  • Página 36

    36 A PPENDIX A: S AFETY I NFORM ATION L ’ inform at ion de S é curit é Im portante ■ L' install ati on et la d é po s e de c e gr oup e do iv ent ê tre c onf i é s à un pers onnel q ual if i é . ■ Si v ous enta ssez l'unit é Swi tch avec les unit é s Sup erStack II Hub, l'unit é Sw itch 3300 SM doit ê tr e install é[...]

  • Página 37

    L ’ info rmati on d e S é curi t é Im p or tan te 37 ■ L ’ app ar eil f onct ionn e à une tension extr ê mem ent basse de s é cur i t é qui est conf orme à la norme CEI 950 . Ces cond i tions n e sont maintenue s que si l' é quipem ent a uquel il est racc ord é fo ncti o n ne dans les m ê mes cond i tions. ■ Fra nce et P é r[...]

  • Página 38

    38 A PPENDIX A: S AFETY I NFORM ATION Wi ch ti ge Sicherh eitsinforma t ion en ■ Die In st allati on und der Ausbau des Ge r ä ts da rf nur du r ch Fach pers onal erfol gen . ■ Wenn di e Switc h 3300 S M E inh eit in ei ner Stape l mit a nderen SuperSt ac k II Hub Einheit en eingebau t werd en soll , mu ß die Swi tch 3300 SM Einheit unter d i[...]

  • Página 39

    Wi chti ge Si cherhei t sinfo rmat ionen 39 WARN HINW EIS: F aser optik ansc hl ü s se - Optisc h e Sic herheit. Niemals mit eine m V erg r öß erun gsger ä t ei nen Ü ber tragungs-L aser betr acht en, w ä hrend d ieser einges chal tet is t. Nie mals direkt auf den Fase r Anschlu ß u nd auf d ie Faser kabelen den schauen , w ä hrend dies e e[...]

  • Página 40

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

  • Página 41

    B P IN - OU TS Nu l l Modem Ca ble 9-pin t o RS-23 2 25-p i n 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/female only required if screen alway [...]

  • Página 42

    42 A PPENDIX B: P IN - OUTS Modem Cable 9-pin t o RS-23 2 25-p i n RJ45 P i n Assign ments Pin assignme nts ar e identic al f or 10BASE-T an d 100BASE-TX R J45 co nnectors 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-232 M[...]

  • Página 43

    RJ45 P in Assi gnment s 43 Ports c onfigu red as M DIX 1 RxD ata + Receiv e Data 2 RxData – Receiv e Data 3 TxData + Tra nsmi t data 4 Not as si gned 5 Not as si gned 6 TxData – Tra nsmit dat a 7 Not as si gned 8 Not as si gned Ta b l e 7 Pin assi gnments Pin Number Signal Functio n[...]

  • Página 44

    44 A PPENDIX B: P IN - OUTS[...]

  • Página 45

    C T ECHNI CAL S PECIFICATIONS Physic al Dimensio ns Heigh t: 43.6mm x Width: 440mm x Depth: 247.5 mm Weight : 5kg (11lbs) Envir onment al Requir ement s Oper ating Tempera tur e 0 ° to 50 ° C (32 ° to 122 ° F) Stora ge Temperat ure – 10 ° to + 70 ° C (14 ° to 158 ° F) Oper ating Humidity 10 – 95% r elat ive humid ity, n on-conde nsing S[...]

  • Página 46

    46 A PPENDIX C: T ECHNICAL S PECIFICATIONS Standar ds Support ed SN MP SN MP prot ocol (RFC 11 57) MIB-I I ( RFC 121 3) Bri dge MIB (RFC 1493) Repeat er MI B (RF C 15 16) VLAN M IB (RFC 15 73) RMON MIB (RFC 1271) BOOTP ( RF C 95 1) T erm inal Emul ati on Teln et ( RFC 854) Pr oto cols Used for Admi ni strat ion UDP ( RFC 768) IP (R FC 791) ICM P (R[...]

  • Página 47

    D T ECHNI CAL S UPPO RT 3Co m provides e asy ac cess to t echnica l suppor t informa tion t hr ough a vari ety of serv ices . This app endi x describ es th ese serv ices. Infor mation co ntained in th is appendix i s co rre ct at ti me of publicat ion. For the mos t r ece nt inf ormation, 3 C om r e co mmends t hat you a ccess the 3Com Corpor at io[...]

  • Página 48

    48 A PPENDIX D: T ECHNICAL S UPPORT 3Co m F TP S i te Down load drivers, patches , software, and M IBs acr oss th e Inter net fro m th e 3Com p u blic F TP site . This service is availa b le 24 hours a day , 7 days a week. T o connect t o the 3Com F TP site, ente r the foll owing info rmati on in to yo ur F TP clie nt: ■ Hostname: ft p.3c om.c om[...]

  • Página 49

    Support f rom 3Com 49 When you co ntact 3Com f or assistance , have the fo llowing i nformat ion read y: ■ Product model n ame, part numbe r , and s e ria l numb er ■ A l ist o f sy ste m hardw are and so ftw are, incl ud ing re vis ion lev els ■ Diagno st ic error me ssages ■ Detai ls abou t recen t configur ation ch anges, i f appli cable[...]

  • Página 50

    50 A PPENDIX D: T ECHNICAL S UPPORT Retu rning Produ cts fo r Rep air Before you send a product directly to 3Com f or repair , y ou must f irst obtai n an au t horiz ation n umber . P roduc ts sent to 3 Com without author ization number s will be r eturn ed to t he send e r u nopen ed, at th e sender ’ s ex pense. T o obtain an autho rizat ion nu[...]

  • Página 51

    G LOSSARY 10B A SE - T The IEEE specific a tion for 1 0Mbps E t her net over Cat e gor y 3 , 4 or 5 twist ed pair cable. 100B ASE- FX The IEEE spec ifica tion f or 100 Mbps Fast Et hernet over fiber - o ptic ca ble. 100BA SE-T X Th e IEEE s pec ifica tion fo r 100Mbps Fas t Ethernet o ver Categ ory 5 t wi st ed - pa i r ca ble . 1000 BASE -SX The I[...]

  • Página 52

    52 G LOSSARY inform ation to f orward pac kets based on thei r de stination address. This process is known as filtering. br oadc a st A pac ket sent t o all devi ces on a network. broa dca st st or m M u ltip le simul taneous br oa dcasts that ty pic ally absor b all th e availab le netw ork bandw idth a nd c an cau se a ne twork t o fai l. Broadca[...]

  • Página 53

    G LOSSARY 53 fu ll du pl ex A sy stem th at all ow s pa ck ets to b e tra nsm it ted and rec eiv ed at the same t i me and, in e ff ect, doubles t he potential t hroughput o f a link . half du pl ex A sy stem that a llows pac kets to t r an smitted an d received, but not a t the sam e ti me. Cont rast with f ull du plex . hub A device that r egen e[...]

  • Página 54

    54 G LOSSARY lo op An event t ha t occurs when two network d evices ar e co nnected by mor e than one path, t her eby causing packets to r epeatedly cycl e ar o und the networ k a nd not reach t heir de st inat i on. MAC Media Access Control. A pr otocol s pecified by the I EEE for det ermin ing whic h device s have acces s to a ne twork at any one[...]

  • Página 55

    G LOSSARY 55 ser v er A comp uter i n a networ k that is shar ed by multip le endstat ion s . Se rvers provide e ndstation s with acce ss to shared ne twork services suc h as compu ter file s and prin ter queu e s. SLIP Se rial Line Inter net Proto col. A protoc ol tha t allows I P to r un over a serial l ine (console port) co nnection . SN MP Si m[...]

  • Página 56

    56 G LOSSARY WAN W ide Ar ea Network. A com municatio ns networ k that covers a wide ar ea. A W AN can cover a larg e geogra phic ar ea, and may cont ain severa l LANs within it.[...]

  • Página 57

    I NDEX Numbers 1000BASE - S X 1 3 10BASE- T/ 100BAS E-TX por ts 13 3C num ber 1 5 3Com K nowle dgebase W eb S ervic es 47 3Com URL 47 3Co mFacts 48 A auto- neg otiat ing por ts 1 3 C cab le choos ing the cor r ect 30 Matrix 16 maximum lengt h 13, 21, 22 pin- outs 41 conso l e port 16 conve nt i ons noti ce ic ons, About Thi s Guide 8 text , About T[...]

  • Página 58

    58 I NDEX powe ring- up a Swit ch 33 00 SM 29 pro duct name 15 R rack mounti ng a Switch 3300 S M 24 Redunda nt Po wer System. See RP S re turning p r oducts for r epa ir 50 RPS 15 co nnecti ng 29 soc ket 1 5 S s afe ty in f or mati on Engli s h 34 Fr ench 36 German 38 segment , max imum l ength 13, 21 seri al num ber of the Switch 1 5 se rial por [...]

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    3Com C orpor at ion L IMITED W ARRANTY Th is wa rra nty ap plie s to cus tom ers loca ted i n the Uni ted S tat es, Austr ali a, C anad a (e xcep t Que be c ) , Irel an d, Ne w Ze alan d, U. K., and other E nglish language countries, a nd countri es for w hich a tran slation into t he local lan guage is n ot pro vided. S UPER S TACK ® II S WITCH 3[...]

  • Página 60

    shippe d to Custome r , at 3Co m's expense , not later tha n thirty (30) d ays after 3Co m receives t he defective product , and 3Com w i ll re tain risk of loss or dama ge until th e item i s delivere d to Custome r . 3Com sha l l not be respons ible for any software, fi r mwa r e, info r m a tion, or memory da t a of C u s tome r containe d [...]

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    L IMIT ATIO N OF L IABIL ITY TO THE FULL EXTEN T ALLOWED BY LAW, 3COM ALSO EXCLUDES FOR ITSELF AND ITS SUPPLIERS AN Y LI AB I LIT Y, WH ET HE R BASE D IN C ONT RACT O R TOR T (I NCL U DI NG N EG LI G EN CE ), FO R I NCI DENT AL, CON SEQUE NTIA L, IN DIREC T, SP ECIAL, O R PU NITI VE DAM AGES O F ANY KIN D, OR FOR LO SS OF R EVEN UE OR PROFITS, LOSS[...]

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    EMC S TA TEMENTS FCC S TA TEMENT This equipme nt has been te sted and fou nd to comply with the lim its for a Class A digital dev i ce, pur suant to part 15 o f the FCC r ules. These limits are desi gned to pr ovide reas ona ble protection a gain st harmful int erfe ren ce wh en t he eq uip men t is oper ate d in a com me rcial envi ro nmen t. Th i[...]