3Com DUA1800-0AAA04 manuel d'utilisation

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Un bon manuel d’utilisation

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Le mot vient du latin "Instructio", à savoir organiser. Ainsi, le manuel d’utilisation 3Com DUA1800-0AAA04 décrit les étapes de la procédure. Le but du manuel d’utilisation est d’instruire, de faciliter le démarrage, l'utilisation de l'équipement ou l'exécution des actions spécifiques. Le manuel d’utilisation est une collection d'informations sur l'objet/service, une indice.

Malheureusement, peu d'utilisateurs prennent le temps de lire le manuel d’utilisation, et un bon manuel permet non seulement d’apprendre à connaître un certain nombre de fonctionnalités supplémentaires du dispositif acheté, mais aussi éviter la majorité des défaillances.

Donc, ce qui devrait contenir le manuel parfait?

Tout d'abord, le manuel d’utilisation 3Com DUA1800-0AAA04 devrait contenir:
- informations sur les caractéristiques techniques du dispositif 3Com DUA1800-0AAA04
- nom du fabricant et année de fabrication 3Com DUA1800-0AAA04
- instructions d'utilisation, de réglage et d’entretien de l'équipement 3Com DUA1800-0AAA04
- signes de sécurité et attestations confirmant la conformité avec les normes pertinentes

Pourquoi nous ne lisons pas les manuels d’utilisation?

Habituellement, cela est dû au manque de temps et de certitude quant à la fonctionnalité spécifique de l'équipement acheté. Malheureusement, la connexion et le démarrage 3Com DUA1800-0AAA04 ne suffisent pas. Le manuel d’utilisation contient un certain nombre de lignes directrices concernant les fonctionnalités spécifiques, la sécurité, les méthodes d'entretien (même les moyens qui doivent être utilisés), les défauts possibles 3Com DUA1800-0AAA04 et les moyens de résoudre des problèmes communs lors de l'utilisation. Enfin, le manuel contient les coordonnées du service 3Com en l'absence de l'efficacité des solutions proposées. Actuellement, les manuels d’utilisation sous la forme d'animations intéressantes et de vidéos pédagogiques qui sont meilleurs que la brochure, sont très populaires. Ce type de manuel permet à l'utilisateur de voir toute la vidéo d'instruction sans sauter les spécifications et les descriptions techniques compliquées 3Com DUA1800-0AAA04, comme c’est le cas pour la version papier.

Pourquoi lire le manuel d’utilisation?

Tout d'abord, il contient la réponse sur la structure, les possibilités du dispositif 3Com DUA1800-0AAA04, l'utilisation de divers accessoires et une gamme d'informations pour profiter pleinement de toutes les fonctionnalités et commodités.

Après un achat réussi de l’équipement/dispositif, prenez un moment pour vous familiariser avec toutes les parties du manuel d'utilisation 3Com DUA1800-0AAA04. À l'heure actuelle, ils sont soigneusement préparés et traduits pour qu'ils soient non seulement compréhensibles pour les utilisateurs, mais pour qu’ils remplissent leur fonction de base de l'information et d’aide.

Table des matières du manuel d’utilisation

  • Page 1

    L INK B UILDE R MSH C HAS SIS U SER G UIDE Part No. DUA1800-0AAA04 Published September 1994 Chassis.bk : FRONT Page 1 Monday, February 10, 1997 1:11 PM[...]

  • Page 2

    3Com Corporati on ■ 5400 Bayfron t Plaza ■ Santa Clara, Ca lifornia ■ 95052-8154 © 3Com Ireland, 1994. All rights re served. No pa rt of this document ation may be reproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without permission from 3Com Ir eland. 3Com Ireland[...]

  • Page 3

    C ONTENTS A BOUT T HIS G UID E About T his Guide ix A Wor d About Safety ix Speci al Me ssages x How to Use T his G uide x 1 W HAT I S T HE L INK B UIL DER MSH? The Li nkBuild er MS H 1-1 The C hass is 1 -4 The B ackpl ane 1 -5 The Mo dules 1-8 Power Supply Units (P SU) 1- 8 The Di splay Pan el 1-9 The The rmal Manage ment Uni t (TMU) 1-10 The C ab[...]

  • Page 4

    The C able Sup port T ray 2-20 Complet ing The I nstallat ion 2-23 Netw ork Cablin g 2-23 Power -up Th e Link Builder MSH 2-2 3 Storing T he User Gui des 2-24 3 I NSTALL ING M ODUL ES I NTO T HE MSH C HASSIS Introduction 3-1 Ether net Modul es 3-2 T ok en Ring Modu les 3-10 FDDI Modules 3-13 Handlin g Modules 3-15 Before Y ou Begin 3-16 Blan king P[...]

  • Page 5

    Fault Dia gnosis Usi ng The LEDs 5-4 Obtaini ng Help 5 -5 A S TAND ARDS USED IN THE DESIGN Standards a nd Approvals A-1 Safety A -1 Environmenta l A-1 Electr omagnetic Comp atabilit y A -1 Functional A-2 BABT Ap proval A-2 B T ECHNICAL S PECIFICA TION MSH Cha ssis - 3C1 8000 and 3C18 001 B- 1 Displa y Panel - 3 C18006 B-2 375W Pow er Suppl y Unit -[...]

  • Page 6

    Ether net P r oduct s E-2 T ok en Ring Products E-3 FDDI Pr oducts E-3 Supplie rs E -4 F T ECHNICAL S UPPORT On-line T echnical Services F-1 3Com Bul letin Board Service (3C omBBS) F-1 Ask3 Com on Co mpuSer ve F-2 3ComFacts A utomated Fax Se rvice F-2 3Com Docu mentatio n on CD-ROM F-3 Suppo rt from Y our Net work Sup plier F- 4 Support f rom 3Com [...]

  • Page 7

    A BOUT T HIS G UIDE About This Guide This guide i s intende d for use only by the followi ng: ■ the Ne twork Adm inistrator responsib le for t he manage ment and main tenance of t he network. ■ the in stallati on en gineer responsib le for i nstalli ng ha r dwa r e. This guide c ontai ns all the in formati on you need to set up the LinkBu ilder[...]

  • Page 8

    x A BOUT T HIS G UIDE DUA1800-0 AAA04 Special Messages A spe cial form at indi cates n otes , cautio ns, and war nings . Thes e message s ar e defi ned as f ollows. Notes call attention to importan t featur es or instru ctions. CAUTION: Cau tions c ontai n dire ctions that you must fo llow to avoi d immediate syst em damage or l oss of data. W AR N[...]

  • Page 9

    1 W HAT I S T HE L INK B UILDER MSH ? This c hapter introduces: ■ The L inkBu ilder MSH an d the servi ces it pr ovides ■ The modul es ■ A brief exp lanatio n of the displ ay pan el, powe r supply units and ther mal manag ement unit. W AR NING: Installat ion and con figuration of t he MSH chassis, i.e. , removal an d replacement of module s, [...]

  • Page 10

    1-2 C HAPTER 1: W HAT I S T HE L INK B UILDER MS H? DUA1800-0 AAA04 Power i s supplied to the chassis via one or tw o power supply un its and the chassis i s kept cool with a the rmal management un it . Y our local i nterface with the MSH is vi a a display pa nel whic h for conven ienc e may be insta lled a t the front o r rear of the c hassis . Th[...]

  • Page 11

    DUA1800-0A AA04 The L inkBuil der MSH 1-3 1 MSH Chassis - The 11-slo t chassis that h olds the back plane into whic h all com ponents are install ed. See The Chassis on page 1 -4 2 Displa y Panel - Can b e fitted front or back . Provides yo ur loc al interface to the co ntrol and mana gement o f the MSH. See The Displa y Panel on page 1-9 . 3 Power[...]

  • Page 12

    1-4 C HAPTER 1: W HAT I S T HE L INK B UILDER MS H? DUA1800-0 AAA04 A vailable to order , but not shown on Fi gure 1-1: The Cable Su pport Kit - T akes t he weight of ne twork cab les and pr events stra in on the connection s. See The Ca ble Suppor t T ray on page 1- 10 and Appendix E fo r ordering inf ormation. The MSH comp onents ar e explained m[...]

  • Page 13

    DUA1800-0A AA04 The C hassis 1-5 The Backplane The bac kplane pr ovides the f ollowing services to the MSH: ■ Ethernet supp ort via a mediu m speed CSMA/CD bus ■ T oken ring sup port via a flexi ble high speed bus ■ FDDI su pport via a flexible hi gh-speed bus (3 C18001 or conv erted 3C1800 0) ■ Managemen t via a sepa rate manageme nt bus ?[...]

  • Page 14

    1-6 C HAPTER 1: W HAT I S T HE L INK B UILDER MS H? DUA1800-0 AAA04 ECS modu les can conn ect to any of the t hree buse s, howeve r , you should no te that an ECS module attached to Buses E2 or E3 will not have full statistics g athering facil ities. Note also th at an ECS module sho u ld onl y be instal led in slots 1 t o 10 in the MSH chassis. Bu[...]

  • Page 15

    DUA1800-0A AA04 The C hassis 1-7 . Figur e 1-3 T oke n ring ba ckplane ope ration Y ou will fi nd furt her inform ation a bout this subject in Chapt er 3, The M odules on p age 1-8 in th is user gu ide and in the user guide that a ccompanies eac h module . FDDI Suppor t The MSH ch assis (3C180 01) which is fitted with a FDDI backpla n e, supp orts [...]

  • Page 16

    1-8 C HAPTER 1: W HAT I S T HE L INK B UILDER MS H? DUA1800-0 AAA04 manag ement port , a re mote manage r using T elnet or an SNMP managemen t appl icatio n such as one of the 3Com T ranscend range . The Modules The rang e of module s available for installat ion into t he Link Builder MSH is constan t ly being exte nded. P lease contac t your local[...]

  • Page 17

    DUA1800-0A AA04 The Di splay Pa nel 1-9 Power is supplied to the chassis via two IEC sockets (the top socket serve s the left-h and PSU) on a fixe d power i nlet panel fitted in the chassis be tween the ri ght-hand P SU slot (PS U 2), and the m odule sl ots. T he two sockets p rovi de r esilience a gainst power supply cable or fu se faul ts. The Di[...]

  • Page 18

    1-10 C HAPTER 1: W HAT I S T HE L IN K B UILDER MSH? DUA1800-0 AAA04 If you ha ve a Management Module installed, you can access r ead-onl y informat ion tel ling you how the ch assis is set up. Mo re detail s can be fou nd in the us er gu ide th at ac compan ies t he Managemen t Module. For conv enienc e, the dis play pan el may be install ed into [...]

  • Page 19

    DUA1800-0A AA04 Manage ment Of T he LinkBu ilder MSH 1-11 Manageme nt Of The LinkBuilder MSH Y ou ar e advise d to install a LinkBuild er Management Module into the MSH. Th is will enabl e you to mor e ef fectivel y manage t he multi service faci lities of the MSH. Ther e are four p ossible m ethods of manag ement. ■ If the MSH does not contai n [...]

  • Page 20

    1-12 C HAPTER 1: W HAT I S T HE L IN K B UILDER MSH? DUA1800-0 AAA04 Chassis.bk : CHAPTER1 Page 12 Monday, February 10, 1997 1:11 PM[...]

  • Page 21

    2 I NSTALLING T HE L INK B UILDER MSH This cha pter provide s: ■ An over view of the steps need ed to install the MSH ■ Details of how to install the chassis ■ Details of how to install: ■ a pow er sup ply uni t ■ the dis play panel ■ the th ermal managemen t unit ■ the rack/ cable mounting ki t W AR NING: Mainte nance ope ration s de[...]

  • Page 22

    2-2 C HAPTER 2: I NSTALLING T HE L INK B UIL DER MSH DUA1800-0 AAA04 3 Instal l modul es and a Mana gement Modu le if you ar e using one, into the chassis, an d check their operati on 4 Attach your network cabl ing to the modul es you have installed . A Suitable Site For Installation Before yo u insta ll the M SH, mak e sure that the loc ation yo u[...]

  • Page 23

    DUA1800-0A AA04 Introduc tion 2-3 If MSH cha ssis are mounted one above t he other , there must be adequat e space betwee n t hem for cooling ai r to pass. When fitted, the cable suppo rt tray , which can be ordere d from your local Li nkBuilder supplie r , provides th e correct spa cing betwee n unit s. If yo u do not fit a cable support tray yo u[...]

  • Page 24

    2-4 C HAPTER 2: I NSTALLING T HE L INK B UIL DER MSH DUA1800-0 AAA04 Ther e are two sets of hol es on each side of t he MSH chassis. These a llow for fitt ing the mounting brackets to two different positions: ■ If you de cide to have the fa ce of the chassis that takes t he cable connectio ns and sho ws module LEDs as the fro nt , fit the b racke[...]

  • Page 25

    DUA1800-0A AA04 Introduc tion 2-5 The Locking Bar The M SH cha ssis is delive red with a lockin g bar f itted. On ce the MSH is fully a ssemb led an d insta lled, you mu st refit thi s lockin g bar . This will pr event the r emoval and r eplacement of po wer suppli es, modules etc. by unqual i fi ed personn el. Fittin g The Lo cking Bar 1 Position [...]

  • Page 26

    2-6 C HAPTER 2: I NSTALLING T HE L INK B UIL DER MSH DUA1800-0 AAA04 Assembling The LinkB uilder MSH W AR NING: During in stallati on and maint enance operat ions, the powered -up MSH must not be lef t unatte nded Safety Informa tion W AR NING: This equip ment must be ear thed. Disco nnect both power lead s before s ervicing. A TTENTION - Débranch[...]

  • Page 27

    DUA1800-0A AA04 Safety Information 2-7 ■ The mini mum specificatio ns for the flex ible lead ar e: ■ - No. 18 A WG ■ - T ype SV or SJ ■ - 3-condu ctor ■ The power lead must have a rate d current capacity of a t least 10A. ■ The attachme nt plug must be an earth -grounding type with a NEMA 5- 15P (15A , 125V) or NEMA 6-15P (15A, 250V) co[...]

  • Page 28

    2-8 C HAPTER 2: I NSTALLING T HE L INK B UIL DER MSH DUA1800-0 AAA04 The Power Supply Unit And Power Inlet Panel We recommend that you instal l two units. Furt her power sup ply unit s are availa ble from yo ur Link Builde r suppli er: see Appen dix E Ordering In formation . See Ap pendix C for det ails of configur ing r esilient supplies an d calc[...]

  • Page 29

    DUA1800-0A AA04 The Power Supp ly Unit And Power Inlet Panel 2-9 Install ing The Power Supply Unit We r ecommend that , if a single po wer suppl y unit is to be use d to powe r the MSH, t he pow er supply uni t should be installed into the slo t at the far le ft of the chassis. This posit ion optimi zes ventil ation within t he cha ssis. MS H cha s[...]

  • Page 30

    2-10 C HAPTER 2: I NSTALLING T HE L INK B UILDER MSH DUA1800-0 AAA04 supply uni t is to be installed int o the chassi s, the blanki ng plate coveri ng the r emaining power supply un it slot must be rem oved. See Blank ing Plates on pag e 3-16. 4 Orientat e the powe r supply un it so that the ejector showing th e part numb er is at the top and the 1[...]

  • Page 31

    DUA1800-0A AA04 The Power Supp ly Unit And Power Inlet Panel 2-11 Figu r e 2 -4 Lockin g the PSU in position Chassis.bk : CHAPTER2 Page 11 Monday, February 10, 1997 1:11 PM[...]

  • Page 32

    2-12 C HAPTER 2: I NSTALLING T HE L INK B UILDER MSH DUA1800-0 AAA04 6 Simult aneously , pr ess the eject or flaps f irmly down into t he closed position . See Figure 2-4. Check t hat the modul e has been pr operl y seated by placing bot h your th umbs on the f ron t panel and fir mly pushin g the module home. C heck that the module fr ont panel is[...]

  • Page 33

    DUA1800-0A AA04 The Power Supp ly Unit And Power Inlet Panel 2-13 . Figu r e 2 -5 Removing th e PSU Replac ing The Po wer Supp ly Fuse s T wo fuses are fitted in removable cartrid ges located on the power inlet p anel. W AR NINGS: The p ower inle t panel must n ot be rem oved fr om the chassis; therefore fu se replacemen t must be car ried out with[...]

  • Page 34

    2-14 C HAPTER 2: I NSTALLING T HE L INK B UILDER MSH DUA1800-0 AAA04 6.3 x 32 mm, ce ramic Repla ce fuse O NCE only . If th e unit consi stentl y blows f uses, the re may be a probl em. Contact yo ur supplie r for advice. Figu r e 2 -6 Replacing Fuses - r emoving the cartrid ge T o r eplace o ne of t hese fuses p roc eed as fol lows: 1 Using a sui [...]

  • Page 35

    DUA1800-0A AA04 The Di splay Pa nel 2-15 3 Replac e the cartri dge into the po wer inlet p anel and secure usin g the scr e wdriver . The Display Panel The dis play pa nel provide s your local inter face to the cont r ol of the MSH. For a descripti on of its f unctiona lity and inst ructions o n how to use it, please re fer to Chapter 4. The MSH is[...]

  • Page 36

    2-16 C HAPTER 2: I NSTALLING T HE L INK B UILDER MSH DUA1800-0 AAA04 1 Remove t he three screws that secure the displ ay panel to th e MSH chassis. 2 Carefully disenga ge the flexi-ri bbon conne ctor taking car e not to bend t he pins o n the con nector , and move the panel away fr om the chassis. Installing The Di splay Pan el Refer t o Figure 2-7[...]

  • Page 37

    DUA1800-0A AA04 The Th ermal Manage ment U nit 2-17 ensu r e tha t the c onnec tion is g ood. The co nnector is key ed, so if necessary turn it ar ound to make it fit the so cket. 3 Locate the display pane l into positi on at the t op of the ch assis. Secur e using the thr ee screws pr ovided. The Thermal Management Unit The ther mal managem ent un[...]

  • Page 38

    2-18 C HAPTER 2: I NSTALLING T HE L INK B UILDER MSH DUA1800-0 AAA04 W AR NING: Y ou cann ot re place indi vidual fans in th e thermal managemen t uni t. If failur e of a fan occurs , the enti re unit must be repl aced as soon as possible. Installing The The rmal M anagement Unit Y ou will need a flat-tipp ed screwdriver to insta ll the therm al ma[...]

  • Page 39

    DUA1800-0A AA04 The Th ermal Manage ment U nit 2-19 Removi ng The Thermal Ma nageme nt Unit Refer t o Figure 2-8 . The M SH doe s not have to be pow ered down before carry ing out the proced ure. 1 Loose n two sc r ews to remove the lockin g bar . 2 Using a screwdriver loose n the two captive screws that secure the thermal managemen t unit in the M[...]

  • Page 40

    2-20 C HAPTER 2: I NSTALLING T HE L INK B UILDER MSH DUA1800-0 AAA04 Figu r e 2 -9 Removing/fitting filte rs 1 Remove th e thermal mana g ement unit fr om the MSH chassis as instruct ed pr eviousl y and turn it upside down on a flat surface. 2 The fil ters ar e located in holder s, one pr otecting each fan. Refer to Figure 2-9. Unclip the cover of [...]

  • Page 41

    DUA1800-0A AA04 The Th ermal Manage ment U nit 2-21 connection s. When fitted, the cable support tray also provides the corr ect clearance be tween chassis mou nted one above t he other . If you d ecide to use the tray , the user guide holder th at is loc ated underneath the chassis (see Stori ng The User Guides on page 2-24) must be moved as in th[...]

  • Page 42

    2-22 C HAPTER 2: I NSTALLING T HE L INK B UILDER MSH DUA1800-0 AAA04 the cabl e clip, so leaving t hem at the fr ont of the chassis. T ighten the c able cli p . Mult iple ca bles from a n indiv idual m odul e can be secured i nto one c able clip Figu r e 2 -10 Cables thr ough the b ack of the MSH Chassis.bk : CHAPTER2 Page 22 Monday, February 10, 1[...]

  • Page 43

    DUA1800-0A AA04 Completi ng The In stalla tion 2-23 Figu r e 2 -11 Ca bles at the fro nt of the MSH Completi ng The Installation Compl ete the ins tallati on by fit tiing th e modu les you require. Refer t o Chapte r 3 of this user guide, a nd to th e user guide s accompanyi ng the individ ual modules and Man agement Module. Network Cabli ng Once y[...]

  • Page 44

    2-24 C HAPTER 2: I NSTALLING T HE L INK B UILDER MSH DUA1800-0 AAA04 Power -up The LinkBuilder MSH When you ha ve completed all stages of installi ng the MSH as outlin ed in this ch apter , an d have conne cted al l the c able segments to your mod ules, the MS H is ready for operati on. 1 Check t hat all connect ions ar e secure and that all cables[...]

  • Page 45

    DUA1800-0A AA04 Storing The User G uides 2-25 Figu r e 2 -12 Putting the user guid es into the ho lder Chassis.bk : CHAPTER2 Page 25 Monday, February 10, 1997 1:11 PM[...]

  • Page 46

    3 I NSTALLING M ODULES I NTO T HE MSH C HASSIS This cha pter provide s: ■ An introdu ction to Ether net, to ken ring and FDDI module s ■ A general ove rview for install ing modules into the MSH chassis ■ Instructio ns for fittin g LinkBuilde r ECS mo dules into the MSH chassis ■ Instructio ns for fitting blankin g plates W AR NING: Ope rati[...]

  • Page 47

    3-2 C HAPTER 3: I NSTALLING M ODULES I NTO T HE MSH C HASSIS DUA1800-0 AAA04 A Quick Check B efore Y ou Install Module s As menti oned befor e you can insert up to el even modules of mixed me dia into th e LinkBuil der MSH. The ran ge of modul es that a re avail able f rom 3 C om allows man y combination s and permut ation s for a mixed media netwo[...]

  • Page 48

    DUA1800-0A AA04 Introduc tion 3-3 Figur e 3-1 Ethernet modu le functions Repeater Interface. T his interface a llows the tra nsfer of Ethernet pack ets, via the bac kplane, between the di ffer ent modules an d the management module . Isolat ion logi c allows a module t o act as a sub-network . See Repe ater Function s on page 3-4. Netwo rk Conn ect[...]

  • Page 49

    3-4 C HAPTER 3: I NSTALLING M ODULES I NTO T HE MSH C HASSIS DUA1800-0 AAA04 ■ Resili ent links can be set up. See Figur e 3-2 below . A resilie nt link consist s of a mai n port and a stand-by port whic h are both set up locall y via the display pane l or rem otely via a Network Manager . The mai n port is the normally oper ational port; however[...]

  • Page 50

    DUA1800-0A AA04 Introduc tion 3-5 Partition ing of a segment from the rest of the n etwork will occur if the modul e detects thir ty-two cons ecutive c ollisions on a segme nt or if it detect s a single co llision of betwee n 1,000 and 30,00 0 bit times. Once a segment has bee n partiti oned, the module will pass networ k traff ic onto the segment;[...]

  • Page 51

    3-6 C HAPTER 3: I NSTALLING M ODULES I NTO T HE MSH C HASSIS DUA1800-0 AAA04 ■ First ly , ea ch frame is exam ined for the destin ation addr ess, and passed in tact to the p ort associated wi th that address. For 10Base -T , fi ber or AUI, th is is e quivalen t to pa ssing d irect to the addr essed device. Every ot her port transmits a f rame of [...]

  • Page 52

    DUA1800-0A AA04 Introduc tion 3-7 whether a specifi ed port on a module is connected t o another MSH (I nter -repea ter Link ) or to an en d-statio n. Y ou will f ind further informat ion in the user gu ides that accompany Repeater Modu les. 4 Port E ther net Bridg e The 4 port bridg e module conne cts the thr ee Ethernet busses of the MSH backp l [...]

  • Page 53

    3-8 C HAPTER 3: I NSTALLING M ODULES I NTO T HE MSH C HASSIS DUA1800-0 AAA04 Figur e 3-3 Usin g tra nscei ver mod ules Modules for the ECS Ch assis Alth ough you may use an y ECS Module in th e MSH chassis by attach ing th e spe cial c onverte r (3C180 82), th e fol lowing modu les may be of p articular in ter est. fiber optic backbone G ROUND FLOO[...]

  • Page 54

    DUA1800-0A AA04 Introduc tion 3-9 Local Bridge Modules. A local br idge module allows you to connect two Lo cal Ar ea Net works together to fo r m a n Extended Local Area Netw ork. It al lows you to e xtend beyo nd the phys ical limitat ions of a singl e network and pr ovides sophisti cated filtering between the n etworks. Contact yo ur local s upp[...]

  • Page 55

    3-10 C HAPTER 3: I NSTALLING M ODULES I NTO T HE MS H C HASSIS DUA1800-0 AAA04 T oken Ring Modules The oper ation of 3C om token ring s is described in V olume 3 of the user guide that accompanies t he MSH manageme nt module . T oken rings i n the MSH chassis ar e built fr om two types of module: ■ Medi a Acces s Unit (MAU ) ■ RingB uilde r mod[...]

  • Page 56

    DUA1800-0A AA04 Introduc tion 3-11 A block of LED s shows the status of each of th e twelve lobes attached to the mod ule. Another five LEDs provide informati on on the stat e of the modul e. The MAU mo dule can operat e in two mode s: ■ Enabled Mo de - the MAU is connecte d to a local ring section. All of the rin g-stations connected to th e MAU[...]

  • Page 57

    3-12 C HAPTER 3: I NSTALLING M ODULES I NTO T HE MS H C HASSIS DUA1800-0 AAA04 ■ The abi lity to al low any MAU or Bridge to be assembled int o a ring, independ ent of its physica l location. ■ Signal s are r etimed when the y enter or lea ve the Ring Builder module at RI (Ring- In) and RO (Ring -Out). This incr eases the dista nces su pported [...]

  • Page 58

    DUA1800-0A AA04 Introduc tion 3-13 T ok en Ring Bridge The 2 port token rin g bridge conne cts between two rings and controls the traffic between the rings. The management inte rface is me nu dri ven. FDDI Modules T o us e FDDI Modu les, you mus t have the spe cial MSH mod el (3C18 001) or ha ve the special backpl ane (3C18015) f itted to the basic[...]

  • Page 59

    3-14 C HAPTER 3: I NSTALLING M ODULES I NTO T HE MS H C HASSIS DUA1800-0 AAA04 Port Modules T wo Port Modu les are available: ■ 4 port FDDI F iber (M IC) Mo dule ■ 6 port FDDI UTP (RJ45) Module These unit s pr ovide conne ctions to the FDDI conce ntator . FDDI Media Mo dules Small mod ules, similar to t he Ethernet transceive r modules, are ava[...]

  • Page 60

    DUA1800-0A AA04 Handling M odules 3-15 user guide w hich c ame w ith your FDDI R ingBuild er mo dule for mor e details. Link Switch Expa nsio n Modul e The L inkSw itch Expa nsion Modul e must be in stalled next to a LinkSwit ch modu le. It pr ovides six RJ45 Ethernet por ts conn ected to the r est of the network throu gh the main LinkSwit ch modul[...]

  • Page 61

    3-16 C HAPTER 3: I NSTALLING M ODULES I NTO T HE MS H C HASSIS DUA1800-0 AAA04 Befor e Y ou Begin Blanking P lates The MSH chassi s is supplied with blanking plates to cover singl e or mu ltiple module slots. The bl anking plate sizes ar e: ■ 1 slot ■ 3 slots ■ 5 slots It is essent ial that unpopulate d slots are fit ted with bla nking plat e[...]

  • Page 62

    DUA1800-0A AA04 Lin kBuil der MS H Modul es 3-17 Choosin g Slots For Modul es All slo ts in the MSH chas sis have the same func tionality and ther efore you ar e not restrict ed as to wher e in the chassis you place Et hernet and T oken Ring module s. However , we make th e following recommendations for practicality an d easy managemen t of the cha[...]

  • Page 63

    3-18 C HAPTER 3: I NSTALLING M ODULES I NTO T HE MS H C HASSIS DUA1800-0 AAA04 Install ing/Removing A Modul e 1 Remove t he locking b ar from the front of th e MSH chassi s. 2 Ensur e that the chassis is instal led corr ectly and all necessary cables ar e present. Pr epar e a slot to r eceive the modu le, removing blank ing plat es if neces sary . [...]

  • Page 64

    DUA1800-0A AA04 Lin kBuil der MS H Modul es 3-19 Figur e 3-4 Loc king t he modu le into posit ion Chassis.bk : CHAPTER3 Page 19 Monday, February 10, 1997 1:11 PM[...]

  • Page 65

    3-20 C HAPTER 3: I NSTALLING M ODULES I NTO T HE MS H C HASSIS DUA1800-0 AAA04 Removing A Module 1 W arn all users who ar e likely to be af fected. Rem ove all net work connection s from the modul e that you wi sh to remove. 2 Remove t he lockin g bar from t he front of the chassis. 3 T o unlock the module ejector , pre ss the sprung catch and move[...]

  • Page 66

    DUA1800-0A AA04 Link Builder ECS Mo dules 3-21 LinkBuilder ECS Mod u les With the exceptio n of the LinkBuil der ECS management mo dules (type s 3C1203 0 and 3C12031 ) all other LinkBuilder ECS m odules can b e insta lled in to the M SH cha ssis by using a modu le converte r . See Insta lling/ Removi ng Li nkBui lder E CS Mo dules on page 3-2 1. Th[...]

  • Page 67

    3-22 C HAPTER 3: I NSTALLING M ODULES I NTO T HE MS H C HASSIS DUA1800-0 AAA04 Figur e 3-6 Setting the switch position on the conve rter Fitting T he EC S Modul e Conv erter 1 Locate the block of three link po s iti ons LK1, LK2 and LK3 on the converte r: see Figur e 3-6. The position of the link it self determi nes Chassis.bk : CHAPTER3 Page 22 Mo[...]

  • Page 68

    DUA1800-0A AA04 Link Builder ECS Mo dules 3-23 to whi ch Bus the mo dule i s routed: Link se t to LK1 - Module routed to Bus E1 Link se t to LK2 - Module routed to Bus E2 Link se t to LK3 - Module routed to Bus E3 Note that the Bus can a lso be set via m anagement. 2 Set l ink LK4 as follows: ■ If you ar e fitting the con verter to any ECS modul [...]

  • Page 69

    3-24 C HAPTER 3: I NSTALLING M ODULES I NTO T HE MS H C HASSIS DUA1800-0 AAA04 Figur e 3-7 Fitting the con verter Ins talling Th e ECS Module In to The Ch assis 1 Remove t he lockin g bar from t he front of the chassis. 2 Ensure that the MS H chassis is installe d correctly and all necessa ry cables ar e pr esent. Pr epar e a slot t o r eceive t he[...]

  • Page 70

    DUA1800-0A AA04 Link Builder ECS Mo dules 3-25 5 Make sur e that the convert er is secur ely fitt ed to the modul e. Engag e the m odule i nto t he slot , using just su fficient fo rce to ensur e that the connecto r on the edge of th e converter mates with the so cket on the M SH backplan e. 6 Locate the two r ound- headed scr ews supplied as part [...]

  • Page 71

    3-26 C HAPTER 3: I NSTALLING M ODULES I NTO T HE MS H C HASSIS DUA1800-0 AAA04 Chassis.bk : CHAPTER3 Page 26 Monday, February 10, 1997 1:11 PM[...]

  • Page 72

    4 U SING T HE D ISPLAY P ANEL This cha pter provide s: ■ An introductio n to the displa y panel ■ An interp r etatio n of the LE Ds and in structions for testing them ■ Steps for r e setting the MSH ■ An over view of managi ng the MSH W AR NING: Mainte nance ope ration s described in this chap ter must be car ried out by qu alified perso nn[...]

  • Page 73

    4-2 C HAPTER 4: U SING T HE D I SPLAY P ANEL DUA1800-0 AAA04 Figur e 4-1 The di splay p anel 4 10 1 1 12 9 8 7 6 5 3 2 1 Chassis.bk : CHAPTER4 Page 2 Monday, February 10, 1997 1:11 PM[...]

  • Page 74

    DUA1800-0A AA04 The Di splay Pa nel 4-3 1 RS232 P ort - Used for out- of-band ma nagement. See The R S232 Seri al Po rt on page 4-7 . 2 Reset Button - U sed with the Enter butto n, resets the MSH chassis to defaul t confi guration. See Resett ing The Lin kBuilder MSH on page 4-6 . 3 Lamps B utton - T ests LED operation. See Te s t i n g L E D s on [...]

  • Page 75

    4-4 C HAPTER 4: U SING T HE D I SPLAY P ANEL DUA1800-0 AAA04 The LEDs The LEDs locate d on the d isplay panel ar e provided for two r easons: ■ to assur e you that the MSH is oper ating norm ally ■ to giv e you imm ediate notice should a fault oc cur T able 4-1 shows the po ssible states of the LE Ds and how to interpret them . If an LED ind ic[...]

  • Page 76

    DUA1800-0A AA04 The LE Ds 4-5 T o dia gnose probl ems related to mo dule LEDs, you will ne ed to refer to th e module us er guide Unless othe rwise stated, the LEDs will functio n without an operati onal Management Modul e installed in the ch assis. If an LED indicates a fault, Chapter 5 gives you advice and ste ps to take to re ctify the pro blem.[...]

  • Page 77

    4-6 C HAPTER 4: U SING T HE D I SPLAY P ANEL DUA1800-0 AAA04 Resetting T h e LinkBuild er MSH The displa y panel carries a facil ity for resetting th e LinkBu ilder MSH. Th is operation r estarts t he entir e MSH chass is, inclu ding the displ ay pan el and ins talled module s. 1 Pr ess and hold down the Rese t button and Ente r butto n at the same[...]

  • Page 78

    DUA1800-0A AA04 Mana gement 4-7 The RS232 Serial P ort Out-of-b and manag ement can be implemen ted via the 25- way D-type RS2 32 port locate d on the lef t-hand side o f the display panel . This facili ty is provi ded for t he ini tial se tup of t he MS H IP addr ess and if the primar y network li nk to managem ent fails, managemen t is sti l l po[...]

  • Page 79

    4-8 C HAPTER 4: U SING T HE D I SPLAY P ANEL DUA1800-0 AAA04 Chassis.bk : CHAPTER4 Page 8 Monday, February 10, 1997 1:11 PM[...]

  • Page 80

    5 P RO B L E M S OLVING This cha pter ex plains: ■ How to mai ntain the MS H in operation ■ How to spot pr oblems and solv e them ■ How to ob tain advi ce if a probl em persis ts Maintena nce operati ons describ ed in this chapt er must be car ried out by qu alified perso nnel only . Les opé ratio ns de main tenan ce décrite s dan s ce c ha[...]

  • Page 81

    5-2 C HAPTER 5: P RO BL EM S OLVING DUA1800-0 AAA04 Spar es The L inkBu ilder M SH has been de sign ed to p rovide resi lience and r eliabil ity . It is good practi ce that you ho ld spar es. We r ecommend that yo u have 1 spar e module or p ower supply uni t for ever y 10 in use. In the unli kely event th at you ha ve problems wit h the MSH, you s[...]

  • Page 82

    DUA1800-0A AA04 Spot Checks 5-3 Manage ment Mod ule. Check that the Ma nagement Module i s secur e in position. If you discover a probl em, refer to Fault Diagnosi s Using The LEDs on page 5- 4 and Obtainin g Help on page 5-5. Cleaning It is im portant th at the MSH , and the environment in which the MSH is sited, is kept c lean. This wi ll pr even[...]

  • Page 83

    5-4 C HAPTER 5: P RO BL EM S OLVING DUA1800-0 AAA04 Fault Diagnosis Using The LEDs T able 5-1 Faul t diagnosis using the LEDs and corrective actio ns LED St atus Actions to take Power OFF Carry out a lamp test to make sure that the LED has not failed. Make s ure th at the pow er cab les ar e plug ged in at the wal l and at t he MSH power i nlet s o[...]

  • Page 84

    DUA1800-0A AA04 Obtaining Help 5-5 Obtaining Help If any of th e MSH eq uipment fail s to operate co rrectly and you cannot solv e the problem yo urself after f ollowing a dvice in this chap ter , contac t your suppli er with the fol lowing inform ation before return ing the ite m(s). ■ Seri al num ber ■ Revis ion nu mber ■ A brief de scripti[...]

  • Page 85

    5-6 C HAPTER 5: P RO BL EM S OLVING DUA1800-0 AAA04 Chassis.bk : CHAPTER5 Page 6 Monday, February 10, 1997 1:11 PM[...]

  • Page 86

    A S TANDAR DS USED IN THE DESIGN Standar ds and Appro vals The MSH chassis and its a ssociated accessori es have b een desi gned to con form to the fo llowing standards: Safety UL 1950 CSA 22. 2 #950 EN 60950 BS 6301 Envir onmental IEC 68 Electr omagnetic Compatability EN 55 022 Level A FCC Part 15 Level A VFG 243 Level B CSA C1 08.8 - M1983 Leve l[...]

  • Page 87

    A-2 A PPENDIX A: S TANDAR DS USED IN THE DESIGN DUA1800-0 AAA04 Functional ISO 8802/ 3 IEEE 802.3 IEEE 802.5 The stand ard s applicabl e to the modul es and the manag ement modules i nstalled in the chassis ar e listed in the cor respo nding user gu ides. BABT Approval For UK users only The LinkB uilder MSH chassis is cover ed by General Appr oval,[...]

  • Page 88

    B T ECHNICAL S PECIFICATION MSH Chassis - 3C18000 and 3C18001 Dimens ions Height 400.5 mm (15. 8in) W idth 436m m (17.2i n) Dept h 335mm (1 3.2in) Weight 3C1800 0 Chassi s - empty * 16.2K g (35. 7lb) 3C1800 1 Chassi s - empty * 16.6K g (35. 4lb) * withou t modules, di splay panel o r power supply un its fitted, but includ ing the backplane (s) and [...]

  • Page 89

    B-2 A PPENDIX B: T ECHNICAL S PECIFICATION DUA1800-0 AAA04 Display Panel - 3C1800 6 Weight Display P anel 190g (0.4lb) Elect rica l Consumpt ion 700mA (max) at +5V 375W Powe r Supply Unit - 3C18011 Weight PSU 2290 g (5lb) Elect rica l Maximum Out put Power 375W Output Voltages +5V*, -9V (iso lated) a nd +12V * Minim um 1A loa d A.C. power suppl y 9[...]

  • Page 90

    DUA1800-0A AA04 525W Po wer Supply Unit - 3 C18012 B-3 525W Powe r Supply Unit - 3C18012 Weight PSU 3300 g (7.3lb ) Elect rica l Maximum Out put Power 525W Outpu t V oltag es +5V* an d +12V * Minim um 1A loa d A.C. power suppl y 90 - 132V , 1 76 - 264V , 45 - 66Hz Envi r onm ent Maximum Oper ating Rang e 0 ° C to 40 ° C (32 ° F to 104 ° F) Rela[...]

  • Page 91

    B-4 A PPENDIX B: T ECHNICAL S PECIFICATION DUA1800-0 AAA04 ECS - MSH Module Co nverter - 3C18082 Dimens ions Height 137.0 mm (5.4in ) Depth 64 .0mm (2 .5in) Weight Converter 100g (0.2 lb) Elect rica l Consumpt ion 550mA at +5V Envi r onm ental Maximum Oper ating Rang e 0 ° C to 40 ° C (32 ° F to 104 ° F) Relative Hu midity 10% to 95% Miscellane[...]

  • Page 92

    C MSH P OWER C ONSUMPTION L IMITS Calculat ing Power Co nsumption It is i mportan t that you c alcula te the to tal pow er consu mption and total current consu mption r equire d by the LinkB uilder MSH chassis and the modu les that yo u intend to install i n the MS H chas sis. On ly by c alcul ating these v alue s can yo u be s ure that y our selec[...]

  • Page 93

    C-2 A PPENDIX C: MSH P OWER C ONSUMPTION L IMITS DUA1800-0 AAA04 Powe r consump tion cal culatio ns must in clude the power used by the chassis and i ts compo nents. ■ The basic cha ssis (3C18000), fitted with display panel , thermal managemen t uni t and backplane , consumes 67 watts (5.7 A @ +5V an d 3.2 A @ +1 2V). ■ A chassis fitted with a [...]

  • Page 94

    DUA1800-0A AA04 Calc ulati ng Powe r Cons umpti on C-3 If you ha ve a 3C12010 ECS Coaxi al module with a 3C18 082 ECS- MSH con verter i nstalle d in y our MSH chass is, you must have at least o ne 375W PSU present, o r two if you want resili ence. The 3C1801 2 525W PSU does not provi de the -9V supply requi red by the E C S C oaxial module . T o ca[...]

  • Page 95

    C-4 A PPENDIX C: MSH P OWER C ONSUMPTION L IMITS DUA1800-0 AAA04 T o cal culate the a ctual total power consu mption, W , use the total curr ent values calcul ated above i n the equati on: W = 5x A 1 + 12xA 2 Chassis.bk : APPENDC Page 4 Monday, February 10, 1997 1:11 PM[...]

  • Page 96

    D P IN A ND C IRCUIT A SSIGNMENTS Ethernet RJ45 - Pi n Assignments Pin Numbe r Signal Function 1 TxData+ Tr a n s m i t D a t a 2 TxData- Tr a n s m i t D a t a 3 RxData+ Receive Data 4 Not Assigned 5 Not Assigned 6 RxData- Receive Data 7 Not Assigned 8 Not Assigned Chassis.bk : APPENDD Page 1 Monday, February 10, 1997 1:11 PM[...]

  • Page 97

    D-2 A PPENDIX D: P IN A ND C IR CUI T A SSIGNMENTS DUA1800-0 AAA04 Ethernet T elc o - Pin Assig nments Port Number Telco Connector Pin Number Telco Signal Name To RJ45 Pin Number RJ45 Signal Name 1 1 26 2 27 Tx Data - Tx Data + Rx Data - Rx Data + 2 1 6 3 Tx Data - Tx Data + Rx D ata - Rx D ata + 2 3 28 4 29 Tx Data - Tx Data + Rx Data - Rx Data + [...]

  • Page 98

    DUA1800-0A AA04 Etherne t T elco - P in Assignm ents D-3 MODULAR JACK CHANNEL NUMBE R Note The TELCO used is a female connector 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Tx DA T A - Rx DA T A - Tx DA T A - Rx DA T A - Tx DA T A - Rx DA T A - Tx DA T A[...]

  • Page 99

    D-4 A PPENDIX D: P IN A ND C IR CUI T A SSIGNMENTS DUA1800-0 AAA04 T ok en Ring RJ45 - Pin Assignment s Ring-In an d Ring-Out Pin Assig nments Signal Purp ose R/I Pins R/O Pins Tx+ T ransmit Data 5 1 Tx- T ransmit Data Inverted 9 6 Rx+ Receive Data 1 5 Rx- Receive Data Inverted 6 9 +5V Phan tom Powe r 3 3 gnd Ground 2,4, 7,8 2,4,7,8 12 3456 78 RED [...]

  • Page 100

    DUA1800-0A AA04 RS232 Se rial Port - Pin As signmen ts D-5 RS232 Serial Port - Pin Assignments Status Inpu t Connector Pin Number Signal Function 1 Gro und Prot ecti ve Ground 2 TxData T ransmit Data 3 RxData, Receive Data 4 RTS Reques t T o Sen d 5 CTS Clear T o S end 6 DSR Data Set Re ady 7 Gro und Si gnal Groun d 8 DCD Data Carrier Detect 20 DTR[...]

  • Page 101

    D-6 A PPENDIX D: P IN A ND C IR CUI T A SSIGNMENTS DUA1800-0 AAA04 Chassis.bk : APPENDD Page 6 Monday, February 10, 1997 1:11 PM[...]

  • Page 102

    E O R D ERING I NFORMATION Pr oduct Numbers Chassis Compo nents MSH C hassi s 3C1 8000 MSH Ch assis for FDDI 3C180 01 MSH The rmal Manag ement Unit 3C1800 5 MSH Di spla y Panel 3C1 8006 MSH 375W Po wer Supply Unit 3C1801 1 One of each of t he thr ee items immediately above is pro vided with each chassi s. However , if you wish to keep a stock for b[...]

  • Page 103

    E-2 A PPENDIX E: O RDERING I NFORMATION DUA1800-0 AAA04 Ethernet Products ECS to MS H Module Conver ter 3C1 8082 Non-smar t Secur e 10Base-T Repeate r Module 3C1811 0 Smart 13 Port 10Base-T R epeater Module (T elco & T cvr) 3C18 120 Smart 12 Port 10Base- T Repea ter Module ( 12xRJ45) 3C18 121 Smart 24 Port 10Base-T R epeater Module (24x 2T elco[...]

  • Page 104

    DUA1800-0A AA04 Product Num bers E-3 T oken Ring Pr oducts UTP T oken Ring MAU (12 por t, R J45) 3C1820 0 STP T oken Ri ng MAU (12 port , RJ45) 3C1 8201 RingBu ilder Module (S TP , DB9) 3C18210 RingBu ilder Second MAC Option 3C1822 1 Cable , shielde d RJ45 - DB9 (for di rect conne ction to NetBui lder) 3C1823 3 2 p ort Br idge Modul e 3C1 8620 Medi[...]

  • Page 105

    E-4 A PPENDIX E: O RDERING I NFORMATION DUA1800-0 AAA04 Suppliers Please cont act your supp lier for the above it ems. In case of difficulty , 3 Com w ill be please d to g ive info rmation on su ppliers in your ar ea. The addre sses are sho wn on the inside of t he back cover . Chassis.bk : APPENDE Page 4 Monday, February 10, 1997 1:11 PM[...]

  • Page 106

    F T ECHNICAL S UPPORT 3Com provi des easy access to te chnica l support in formation through a varie ty of services. This appendix describes th ese ser- vices. On-line T echn ical Services 3Com o ffer s worl dwide pr oduct suppo rt seven days a week, 24 hours a day , thr ough the fol lowing on- line systems: ■ 3Com Bull etin B oard Serv ice ■ A[...]

  • Page 107

    F A PPENDIX F: T ECHNI CAL S UPPORT DUA1800-0 AAA04 Ask3Com on CompuServe Ask3Co m is a CompuS erve-based servi ce contain ing patches, softwar e, drivers, an d technica l articles ab out all 3Com prod ucts, as we ll as an inter activ e forum f or technic al quest ions. T o use Ask3Co m, you need a CompuServe acco unt. T o use Ask3Com: 1 2 Enter go[...]

  • Page 108

    DUA1800-0A AA04 3Com Doc umentat ion on CD-ROM F ■ NetFacts provides da ta she ets and tech nical a rticles on 3C om Cor- porat ion’ s hub, bri dge, rout er , termin al server , and softwar e prod - ucts. Documen t 8888 pr ovides you with an index of system pr oduct documents . Call 3Com Facts using your touchto n e tel ephone. I nternational a[...]

  • Page 109

    F A PPENDIX F: T ECHNI CAL S UPPORT DUA1800-0 AAA04 Support fr om Y our Netw ork Supplier If a dditional assistance is re quir ed, co ntact you r network supp lier . Many suppl iers ar e authorized 3C om service partne rs who ar e quali fied to provide a var iety o f servic es, in cludi ng ne twork plan- ning, in stallati on, hardwa re maintena nce[...]

  • Page 110

    DUA1800-0A AA04 Returnin g Products for Rep air F Returning P rod ucts for R epair A pr oduct sent di rectly to 3Com for r epair must fi rst be assigned a Retur n Ma terials Au thoriza tion (R MA) num ber . A produ ct sent to 3Com without an RMA numb er will b e r etur ned to the sende r uno pened , at th e sen der’ s exp ense . T o obtain an RM [...]

  • Page 111

    F A PPENDIX F: T ECHNI CAL S UPPORT DUA1800-0 AAA04 Chassis.bk : TSUPPORT Page 6 Monday, February 10, 1997 1:11 PM[...]

  • Page 112

    I NDEX Numerics 3ComBBS 3ComF acts A Ask3Com B backpl ane Ether net FDDI LinkBu ilder M SH selectio n token ring blanki ng plat es bracke ts bulle tin bo ard sys tem C cable support tra y CDDI 6 port m odule chassis LinkBu ilder M SH Comp uServe , See Ask3Co m converter ,ECS m odule D disp lay panel insta lling lamps button LEDs re mo vi n g rese t[...]

  • Page 113

    2 I NDEX DUA1800-0 AAA04 L lamps button LAN Security Archi tecture LCD panel LEDs fault dia gnosis testing line ca rds. See m odules LinkB uilder ECS module s insta lling re mo vi n g LinkBu ilder M SH backpl ane chassis cleani ng mana gement power ing up resettin g spar es LinkB uilder MS H modules LinkSwi tch ex pansio n module LinkSwi tch modu l[...]

  • Page 114

    I NDEX 3 DUA1800-0A AA04 S safety safety information serial port. S ee RS232 po rt spar es spot chec ks storing user guides T techni cal support terminal se rver module therma l manage ment uni t insta lling token ring backpl ane brid ge modu le modul es transce iver module s Tr a n s c e n d U user guide s,s tori ng V vol tage se lection W war nin[...]

  • Page 115

    4 I NDEX DUA1800-0 AAA04 Chassis.bk : CHASSIS.IX Page 4 Monday, February 10, 1997 1:11 PM[...]

  • Page 116

    R ADIO F REQUENCY I NTERFERENCE S TATEMENTS FCC Statement This equi pment has been teste d with a class A computi ng device and ha s been found to compl y with par t 15 of FCC Rul es. Opera- tion i n a reside ntial ar ea may cause una cceptable int erfer ence to radio and TV rece ptions requi ring the operator to take whate ver steps are necessary [...]

  • Page 117

    ■ Reori ent the recei ving antenna . ■ Relocate the equipment with respect to the re ceiver . ■ Move the eq uipment away fr om the r eceiver . ■ Plug the equ ipment into a dif feren t outlet so tha t equipme nt and r eceiver ar e on diff er ent branch ci rcu its. If nece ssary , th e user shoul d consult th e dealer or an experien ced radio[...]

  • Page 118

    L IMITED W ARRAN TY HARDW ARE: 3Com warrant s its har dware products to be free fr om defects in workmanship and materials, under normal use and service, for the following lengths of time fr om the date of purchase from 3Com or its Authorized Reseller: Internetworking pro ducts One year Network adapters Lifetime Ethernet stackable hubs and Unmanage[...]

  • Page 119

    W ARRANTIES EXCLUSIVE: If a 3Com product does not operate a s warranted above, Cust omer's sole remedy shall be re pair , r eplacement, or refund of the purchase price paid, at 3Com's option. THE FOREGOING W ARRANTIES A ND REMEDIES ARE EXCL USIVE AND ARE IN LIEU OF ALL OTH ER W ARRANTIES, EXPRESS OR IMPLIED, EITHER IN F A CT OR BY OPERA T[...]