Instruction/ maintenance manual of the product 5108M-TP 3Com
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ONline Et her net 10BAS E-T Module User’ s Guide Doc u men t Number 17-0 0 1 4 1-3 Print ed March 1 995 Model Numb er: 5108M-TP 3Co m Corpo ration 118 T ur npike Road South borough , MA 0 1772- 1886 U.
ii O Nline Ethern et 10BASE-T M odule User’s Guid e Federal Commun ication s Co m mission Notice Th i s equipment has bee n t este d and f o und to com ply with the limits for a Class A digital device, pursu ant to P art 15 of the FCC Rules.
ONli ne Ethern et 10BA SE-T Module U ser’s Gui d e iii XNS is a trade m a rk a nd Ethernet is a r egis t e r ed t r ademark of Xerox Corporat ion. 3ComFacts, Ask 3Com, CardFact s , NetFa cts, and CardBoard ar e service mar k s of 3Co m Corporation.
iv O Nline Ethern et 10 BASE- T M odule U ser ’s Guide.
Contents ONline Ethernet 10BASE-T Mo dule U se r’s G uide v How to Use This Gu id e Audien ce . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii Structu r e o f This Gui de . . . . . . . . . . . . .
vi ON line Ethernet 10BASE-T Mo dule U ser’s Guide Chapter 3 — In stalli ng a n d Op eratin g t he Mod u le Precautionary Proc edu res . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 Unpackin g Procedu res . . . . . . .
ONlin e E t hern et 10BASE-T M odule User’s Guid e vii Fig ures Figure 1- 1 . 10BAS E -T Module Fac eplate and ONline System Co nc entrato r . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 Figure 1-2. 10 BA S E-T Module and Dip Switc h Lo catio n s .
viii ONline Ethernet 10BASE-T Module User’s Guide.
ONli ne Ethern et 10BA SE-T Module U ser’s Gui d e ix Ta bles Table 1-1. Interpretation of the 10BASE-T Modu le LEDs . . . . . . . . . . 1-4 Table 1-2. Dip Switch SW1 Settings and Interpret ations . . . . . . . . . . 1-6 Table 1-3. Dip Switch SW3 Settings for Switches 1 and 4 .
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ONli ne Ethern et 10BA SE-T Module U ser’s Gui d e xi How to Use This G uide The ONli ne ™ Ethernet 10 BA SE-T Module User’ s Guide descr ibes the features , in dicat ors, a nd in stallation proced ure s fo r the ON line Eth ernet 10BA SE-T Module.
xii ONline Ether net 10 BASE-T Mo dule U s e r’s Guide Structu re of This Gui de This guide co ntains the fol lowing chap ters: Chapt er 1 , Introducti on – Intr o duces the prin cipal featu r es of the O Nline Ethern et 1 0 B ASE-T Module and provides views and descripti ons of the fr o nt panel an d the dip swi tches on the m odule.
ON lin e Ethern et 10B ASE-T Mod ule User’s G uide xii i Docu ment C onventi ons The follow ing doc u m ent con vention s are us e d in this manual: Con v entio n Indic ates Exam ple Couri er t ext User input In th e Agen t Infor mation F orm, enter MI S i n the New Contac t field.
xiv ONline Eth e r net 10 BASE-T Modu le User’s Guide Related Doc uments This section provi des in formation on suppo rtin g d ocumen tation , inclu ding: ❑ 3Com Doc ument s ❑ Reference D ocuments Note: A Note . The inform at ion i s impo rtant Note: Use STP lobe cables f or your system .
ONlin e E t hern et 10BASE-T M odule User’s Guid e xv 3Com D ocumen ts The follow ing doc u m ents provid e ad dition al info rmation on 3Com products: 17-Sl ot ONlin e Syste m Conce ntra tor Instal.
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Introd uction 1 - 1 1 Introduction This chapter d escribe s the featu r es, in dicators , and di p switch sett ings on the O Nline™ Eth ernet 10BASE-T Modul e. The ONl ine Ethe rnet 10BASE-T M odule The ONline™ Eth er net 10BASE-T Module is an eight-port IEEE 802 .
1 - 2 ONl ine Ethernet 10 BASE-T Mod ule User’s G ui de twisted pair connectio ns while po rts 3, 4 , 5, and 7 are shielded t wisted pair connec tions .
Introd uction 1 - 3 Figure 1-1. 1 0 BASE-T M odule Faceplate and ONline System Con ce ntrato r.
1 - 4 ONl ine Ethernet 10 BASE-T Mod ule User’s G ui de Dip Switch es The 10BA SE-T Module has th r ee d ip switch es located on th e modu le: ❑ 8-swi tch d ip switch (SW1 ) ❑ 4-swi tch d ip switch (SW3 ) ❑ 8-swi tch d ip switch (SW6 ) T able 1-1.
Introd uction 1 - 5 Confi gure the swit ches to the s etting s you want if dif ferent than the default valu es. (Refer to T able 1-2 , T able 1-3, T abl e 1-4, an d T able 1-5 fo r an explanatio n of t h e dip switch s e t tings.) Figure 1-2 sho ws the lo cation of the dip s w itches.
1 - 6 ONl ine Ethernet 10 BASE-T Mod ule User’s G ui de On po s i tion, therefore, all ports are initially enabled . T abl e 1 -2 desc ribes the settin gs and fu nction s for switch es 1 th roug h 8.
Introd uction 1 - 7 T able 1- 3 explains crossov er mode a nd sq uelch mod e switch settin gs and the sectio ns follo wing the table explain these features in more detail.
1 - 8 ONl ine Ethernet 10 BASE-T Mod ule User’s G ui de The Of f posit io n s et s the Squ elch level to low . When the Squelch level is set to low , the ports ar e able to r eceiv e weaker signals. Note that Lo w Squelch mode does no t con form to the 10B ASE-T stand ar d.
Introd uction 1 - 9 10BA SE-T Mod ule is ini tially conf igured to channel 1. T o recon fig ur e the module to a di ffer en t ch annel, r efer to the in form a t ion in T able 1 -4. If you have an ONline Ethern e t Network Manag ement Mo d ule in stalled in your co ncentrato r , yo u can re m otely override these swit ch settings.
1 - 10 ONline Eth ernet 10B ASE-T Mo dule User’s Guide If you enabl e a port and disable Lin k In tegrity , the Statu s LED is o n for 10 seconds and b links off for 4 00 msecs to ind icate that L ink Integrit y is disable d. T able 1- 5 lists the settings and f un ctions for sw itc hes 1 throu gh 8 .
Intro ductio n 1 - 11 assigned. The channel check sequence re peats f ive ti m es. T ab le 1 -6 exp lains the chann el check co des. The LED/Chan nel C h eck b u t ton and the Controller Module are explained in more detail in the ON line C ont roller M odul e In stallation Gu ide .
1 - 12 ONline Ethernet 10BASE-T Mo dule User’s Guide ❑ chang e channel selectio n (per m odule) (SET MOD ULE 4 CHANNEL 2) The O Nlin e Eth ernet Manageme nt Mo dule allows yo u to set redundan cy between the ports.
Designin g and Expand ing the Net work 2 - 1 2 Designing a nd Expanding the Network This appen di x contain s co nfigu ratio n informa t ion that w ill help you to design your networ k. Install all e quip ment u sing o nly ap proved cables for proper operation .
2 - 2 ONl ine Ethernet 10 BASE-T Mod ule User’s G ui de Unders tand ing the Gen eral R ules As part of yo ur netwo rk d esign, it is imp ortant to c on sider your n e t wo rk size.
Designin g and Expand ing the Net work 2 - 3 T able 2-1 outli nes the seven basic rules to keep in mind w hen you c ons truct your net wor k . T able 2-1. Seven B asi c Netw or k Rules Rule Definition Rec omme ndat ion s/ Notes 1 If pos s ible, use 10BAS E - FB as the backbon e me dium.
2 - 4 ONl ine Ethernet 10 BASE-T Mod ule User’s G ui de 4 Certain LA N devices on th e netw ork shrin k the maxi mum Fibe r Ethern et network diamet er to less than 42 00 me ter s. Many L A N products delay the sign a l that goes through them. This is known as equivalent distance .
Designin g and Expand ing the Net work 2 - 5 6 The fiber li nk distances must not exc eed the limits imposed by the optical pow er budget. In g eneral, on 62.5 m icr on cabl e, you can g o up to 4000 m eters poin t-to-po int using the ON core or ONline Fiber Modules.
2 - 6 ONl ine Ethernet 10 BASE-T Mod ule User’s G ui de LAN E q uiv alence LAN equ ivalence i s the sum of both t he inc oming and outgo ing modu le port signals. Differe n t modules, however , h ave d if f er ent equival e nt distances. T a b le 2-2 lists the LAN product equ ivalent distances.
Designin g and Expand ing the Net work 2 - 7 Fib er Bac kbo n e, T wisted Pai r T o-The- D esk Wh en yo u configure a network wit h unshield ed or shiel ded twisted p air cabling to -the-desk an d fib.
2 - 8 ONl ine Ethernet 10 BASE-T Mod ule User’s G ui de ❑ There is an equivalent fi b e r distance for the 1 0BASE-T Modules (see Rule 4). The equivalence is: – 420 meters for signals that exter.
Designin g and Expand ing the Net work 2 - 9 . Figure 2-1. Sam pl e C onf iguration D i st ance Calculati on Use the following steps to deter mine whether your netwo rk con figuration is legal: 1. Begin with 4.2 km (4200 m ) since thi s is the max i m u m networ k diameter fo r a pur e fib er netw or k (Rule 3).
2 - 10 ONline Ethernet 10BASE-T Mo dule User’s Guide For the co nfigur a t ion show n in Figure 2-1 to work, the fib er equivalent distance betw een transceiver A and transceiver B must be less than 4200 meters. As you c a n see in the calculation , there ar e still 15 10 meters left fo r expansion in this conf iguratio n.
Des igni ng and E xpa ndi ng t he Net work 2 - 11 T wisted Pair B ackb o ne, T wisted Pair T o-Th e-Des k In con structin g a twiste d pair b ackbo ne, one add itional con figurati on rule must b e co.
2 - 12 ONline Ethernet 10BASE-T Mo dule User’s Guide Whi le there is no fiber in this co nfigu ration, t he fib e r equiv alent di s tanc e can be cal cul at e d a s follo w s: T o tal lin k distanc.
Des igni ng and E xpa ndi ng t he Net work 2 - 13 T o set r edundancy betwe e n two 10 BASE-T M o dules, con nect t w o links between the mo d ules. The redundant link must be connected to a p ort on the same 1 0 BASE-T Module as the prim a ry link.
2 - 14 ONline Ethernet 10BASE-T Mo dule User’s Guide Patch Panel s Patch panels weaken sign als, thereby reducing achievable lin k distance s . 3Com includes the use of one patch panel in t he 1 50 m e ter link distan ce calculatio n.
Installing an d Operat ing the Mo dule 3 - 1 3 Installing and Operati ng the Mod ule This chapter descr ibes the precautionary , unpackin g, and installati on procedures for the Ether n et 10BA S E -T Mod ul e . Pr ecau tionary Pro c ed ur es Electrostatic discharge (ESD) can damag e static-sensitiv e devices o n circuit boar ds.
3 - 2 ONl ine Ethernet 10 BASE-T Mod ule User’s G ui de Unpac king Pr oced ures Use the follow ing proced ure when u np acking you r 10 BAS E -T Mod ule. 1. V eri fy th at the 10BA SE-T Mo dul e is the correct mod el by matc hin g the m odel numb er listed o n the side of the ship pin g carton t o the model number y o u ordered (5108M-TP).
Installing an d Operat ing the Mo dule 3 - 3 1. Set the dip sw itch es on the board to the settin gs you want , if different than the default valu es. (Refer to T able 1-2, T able 1-3, T ab le 1-4 , and T ab le 1-5 for an explan ation o f the dip s witch setti ngs.
3 - 4 ONl ine Ethernet 10 BASE-T Mod ule User’s G ui de 4. Fasten the sprin g - loaded scr ews on the front of the 10BASE-T M odule face-plat e to t he concen trator w ith yo ur fing e rs (do not overtigh ten). 5. Attach the twisted pair cable to the port o n the fro n t o f the 10BASE-T Module as shown in Figure 3-2.
Troublesh ooting 4 - 1 4 T roubleshooting This chapt er describes troubleshooting procedures for the ON li n e Ethernet 10BA SE-T M odule. Inf or m ation o n trou bleshooti ng will assist you i n verifyin g operatio n . T ypical fault c on ditions are addressed in thi s chapt er .
4 - 2 ONl ine Ethernet 10 BASE-T Mod ule User’s G ui de T roublesho oting Wi th the Statu s LEDs A blinkin g Port St at us ind icato r may be a s i gn th at the p ort detects a potenti al problem. On ce a p ort detect s a problem, yo u can furth er analyze the problem by co unting th e n um b er of blinks.
Troublesh ooting 4 - 3 1 Blink Link Integ rity Err o r Ca bl e no t connec ted Connect cable. Cable broken Check cable with cab le tester . Repair or replace cable.
4 - 4 ONl ine Ethernet 10 BASE-T Mod ule User’s G ui de 2 Blinks Port Partitioni ng Faulty cable Check cable with cab le tester . Repair or replace cable.
Troublesh ooting 4 - 5 T roublesho oting Wi th the Activity LEDs Ther e may be s ituatio ns w h er e a port's Acti vity L E D may not light. Use the tr o ub leshootin g sug gestions in T abl e 4-2 to help isolate wh y this has occur red. T able 4-2.
4 - 6 ONl ine Ethernet 10 BASE-T Mod ule User’s G ui de T echn ica l As si sta nce Y ou can receive as s istance fo r instal ling and t r ou bleshoot ing the 1 0BA SE-T Module b y calling eith er your 3Com reseller or 3Com T ech ni c al Support.
Sp e c ification s A - 1 A Spec ifi cations ONli ne Eth e rn et 10BASE-T Modul e Spec ifi cati ons This append ix lists specific ations for the 1 0BASE-T Module.
A - 2 ONl ine Ethernet 10BA SE-T Module User’s Gui de Enviro n mental S pecifications Operating T emp eratur e: 0° to 50° C (32° to 122 ° F) Storage T em perature: -30° to 65° C (-22° to 14 9° F) Humidity: less than 95%, no n-condensing BTU/hr : 30 Mechan ical Specificatio n s Dim ension s: 1.
Sp e c ification s A - 3 Cabl e propagation veloci ty: >.58 5c Host Interface: 3Com ONline System Concentrator b us interface standard Installat ion Attac hm ent: T wo th u m bscrews o n the mo unt.
A - 4 ONl ine Ethernet 10BA SE-T Module User’s Gui de Refer to Figure A-1 for an exampl e of this co nnector and the cab le pin-o uts. Figure A-1. RJ45 Connector Pin-outs Some instal lations ma y have 50 -pin T elco c onnecto rs at the wiring c loset.
Sp e c ification s A - 5 Connecting T wisted Pair Cab les We r eco mmend that yo u conn ect cables first a t the activ e c oncentr at or location , and conn ect transceivers second. Refer to the ONline System Con centrator I nstallation an d Operat ion Guid e f or more inform ation ab out the ON line System C oncentr ator c onnectio ns.
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Technical Support B - 1 B T echnical Support 3Com prov ides easy acce ss to technical support in formation through a variety of servic es . This app endi x describes the following s ervices: ❑ On -l.
B - 2 ONl ine Ethernet 10 BASE-T Mod ule User’s G ui de Email T ech nical S u p port Y ou can contact the Integ rated Systems Division (for merly Ch ipcom) on the Inter net for tech nical suppo rt using th e e-mail address techsu pp@c hipco m.
Technical Support B - 3 When y ou c ontact you r network sup plier for a ss istance, hav e the f ollow ing inform at ion re a d y: ❑ Diagn ostic error messages ❑ A list of system hardware and soft.
B - 4 ONl ine Ethernet 10 BASE-T Mod ule User’s G ui de For access to customer service for all 3Com p roducts, call (800) 87 6 -3 2 6 6. Y ou can also contact the Integrated Sy s t ems Division (ISD) on t he I n ternet by u sing t he e - mail add r ess techsup p@ch ipcom.
Technical Support B - 5 3. En ter you r full Inter net e-m ail add r ess as the passwor d (for exam ple, jdoe @com pany. com ). 4. Chan ge to th e m ib or schem a directo ry using th e cd /p ub/mi bs or cd /p ub/ mi bs /s ch em as command. 5. T o view t he 3Com MIB, O ID, or sch ema e ntries, enter the dir command.
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Inde x 1 Inde x Numerics 3Com Bull etin Board Service (3C omBBS) , B - 3 A Audienc e of M anu al , x i B Backbone Fiber Medium , 2-2 bulletin board service , B-3 C Cable Typ es Shielded Twisted Pair ,.
2 Inde x M MIB , B - 4 N network suppli e r suppo r t , B - 2 O ONline Co nt roller Mo dule , 1-10 ONline Ethernet Management Module , 1 - 1 1 , 1-12 on-line techni cal servic es , B-1 P Patch Panels .
An important point after buying a device 3Com 5108M-TP (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought 3Com 5108M-TP yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data 3Com 5108M-TP - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, 3Com 5108M-TP you will learn all the available features of the product, as well as information on its operation. The information that you get 3Com 5108M-TP will certainly help you make a decision on the purchase.
If you already are a holder of 3Com 5108M-TP, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime 3Com 5108M-TP.
However, one of the most important roles played by the user manual is to help in solving problems with 3Com 5108M-TP. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device 3Com 5108M-TP along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
