3Comメーカー5104M-FL1の使用説明書/サービス説明書
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ONline Ether net 10BASE-FL Module Inst allation and Operat ion Guide Doc umen t Nu mber 17 -0 04 70-3 Print ed March 1 995 Model Nu mb er: 5 104 M -FL1 3Co m Co rporatio n 118 T urnpike Road South bo r ough , MA 0 177 2-188 6 U.
ii O Nline Ethern et 10B ASE-F L Modu le Installat ion and O per ation G uid e Federal Commun ication s Co m mission Notice Th is equi pment has been t este d an d f o und to com ply with the limits for a Class A digital device, pursu ant to P art 15 of the FC C Rules.
ONline Ether net 10 BA SE-FL M odule In stallatio n and Operatio n G ui de iii Arte l, Ch i pcom, E ther modem, Galactica, ON cor e, ORnet , Star Bridge, an d T riChannel ar e re gister ed trademark s of 3Com Corporat ion.
iv O Nline Ethern et 10BA SE-FL M odule Instal lation and O peratio n Guid e.
Contents ON line Eth ernet 10 BASE-FL Module In stallation and Operatio n Gu ide v How to Use This Gu ide Audien ce . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii Structu r e of This Gui d e . . .
vi O Nline Eth ernet 10BA SE-FL M od ule Installatio n and O peratio n G u ide 10BA S E-FL Backbon e , 10BASE-F L to- the-D e s k . . . . . . . . . . . . . . . . 2 -16 Networ k Distanc e C alcu latio n Exam p le s . . . . . . . . . . . . . . . . . . 2 -18 10BAS E-FL Backbon e , Unshielded Twisted Pair to-the-Desk .
ONli ne Ethernet 10 BASE- FL Mod ule Installation and O per ation G uide vii Append ix A — S pecificatio ns General Specificat ion s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1 Opti cal Specificatio ns . . . . . .
viii O Nlin e Eth ernet 1 0BASE-F L Mo dul e Installat ion a nd O perat ion Gu id e.
ONline Ether net 10 BA SE-FL M odule In stallatio n and Operatio n G ui de ix Fig ures Figure 1- 1 . 10BA S E-FL M od ule Conn ectio ns . . . . . . . . . . . . . . . . . . . 1-4 Figure 2- 1. 2000 Meter Fib er Lin k With M echan ical Spl ice . . . . . .
x O Nl ine Ether net 10 BA SE-FL M odule In stallatio n and Operatio n Gui d e.
ONline Ether net 10 BA SE-FL M odule In stallatio n and Operatio n G ui de x i Ta ble s Table 1-1. 10BAS E-F Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Table 2-1. Seven Basic Network Rules . . . . . . . . . . . . . . . . . .
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O Nline Et herne t 10B ASE-FL Mo dule Installat ion a nd Oper ation G uid e xiii How to Use This G uide This guide is designed to help you underst and the features, indicators, and installation procedure for the 3C om ON line™ Et hern et 10BASE-F L Mo du le (Model Number 5104M -FL1).
xiv O Nline Eth ernet 10BA SE-FL M od ule Installatio n and O peration G u ide Structu re of This Gui de This guide co ntains the follow ing chap ters and append ix: Chapt e r 1 - I n troduction – Intr o duces the principal features of the ONline Ethern et 10BA SE-FL Mod ule.
ONli ne Ethernet 10 BASE- FL Mod ule Installation and O per ation G uide xv Docu ment C onve nti ons This se ctio n describes doc umen t con vention s. T e xt Con ve ntio ns T ext Co nvent ion Ex ampl e System ou tput Cour ier text After yo u cli ck App ly , th e system display s the me ssage Tran smit ting Data .
xvi O Nline Eth ernet 10BA SE-FL M od ule Installatio n and O peration G u ide Notes, Caution s, and W ar nings A note ind icates inform ation that is im po rtan t : Note: Use ST P lobe cabl es for your system .
ON line Ethernet 1 0BASE-F L Mo dul e Installation an d O peration Guide xvi i 17-Sl ot ONlin e Syste m Conce ntra tor Installa tion a nd Opera tion Guid e – Explains how to in stall, operate , and manage th e 3Com O Nli ne 17-Slot System C oncent rator ( Models 5017C -LS and 5017C wit h load sharing ).
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Introd uct ion 1 - 1 1 Introduction This chapter in tr o duces you to the 3Com ONline ™ E t hern et 10BASE-F L Modu le ( Mod el N um ber 51 04-FL1 ) and provid es an overvi ew of its featu r es .
1 - 2 ONl ine Ethern et 10 BA S E-FL Installatio n and Op eration G uide 10BASE-FL M odul e Des criptio n The ONline Ether net 1 0BASE-FL M odule is a 4-por t, fi ber repeater module designe d for the 3C om ONlin e System Concen trator . Th e module provide s 10BAS E - FL backbone connectiv ity fo r Ethern et local area netwo rks.
Introd uct ion 1 - 3 10BASE-FL an d FOI RL IEEE S tand ard s Co mparis on 10BAS E -FL is a subpart of a IEEE standard called 10BASE-F (80 2.3, section 18), wh ich standardiz es three types of Ether net-ov er -fi ber op tic cable .
1 - 4 ONl ine Ethern et 10 BA S E-FL Installatio n and Op eration G uide . Figure 1-1. 1 0 BASE-FL M odule Conne ctions.
Designin g and Ex panding the Netwo rk 2 - 1 2 Designing a nd Expanding the Network This chapter con tains config uration inf ormat ion that will help you to pl an your netw ork . Install all equipm ent usin g only approved cables for prop er operation.
2 - 2 ONl ine Ethern et 10 BA S E-FL Installatio n and Op eration G uide Unders tand ing the Gen eral R ules This se ction descr ibes general rules for configuring an Ether net netw ork using f iber as the backbon e m edium.
Designin g and Ex panding the Netwo rk 2 - 3 2 W ire the bac kbone in a star t opology to isolate faults. Ma k e sure to lay extra fiber cables. The extra cost is small an d you will find you need them as y our netw ork grow s .
2 - 4 ONl ine Ethern et 10 BA S E-FL Installatio n and Op eration G uide 5 Assume th at one meter of coaxial o r twisted pair is equal to one meter of fiber cable. This is a conservative ru le of t humb. For examp le, the actual eq uivalence is about 1 .
Designin g and Ex panding the Netwo rk 2 - 5 LAN E q uiv ale nce LAN equ ivalen c e i s the su m of both the inc om in g and o ut going modu le port signals. Differe nt m odules, however , have dif f er ent eq uivalent distances. T a b le 2 -2 lists the LAN product equ ivalent distan ces.
2 - 6 ONl ine Ethern et 10 BA S E-FL Installatio n and Op eration G uide Determining Maximu m 10B ASE-FL Link Distanc es This se ctio n describes how to cal cul ate the m aximu m allow able link distances betwe en two 10 BA SE-FL ports.
Designin g and Ex panding the Netwo rk 2 - 7 Determinin g Link Budget As a network plan ner or installer , account for worst case losses through th e optical con nection , end -to-end , to ensure lin k int egrit y . T he optical po wer budg et represents a “wor st case” assumin g the transmit ter is tran smittin g at the low end of its range .
2 - 8 ONl ine Ethern et 10 BA S E-FL Installatio n and Op eration G uide Note: The valu es in T ab le 2-3 are pe ak pow er values. Y ou determ ine averag e optic al pow er by subtr acting 3 d Bm fr om the peak valu e. All of th e examples provid ed in th e pages that foll ow refer to peak op tic al powe r .
Designin g and Ex panding the Netwo rk 2 - 9 In such cases, some atten uatio n is r equired to prevent th is pr oblem . This attenuatio n is usually cov ered by: ❑ A m oderate link length ❑ Th e f.
2 - 10 ON lin e Ethernet 10B ASE-FL Installation and Operat ion G uid e T able 2- 4 s hows t he range of loss and th e typical lo ss a s a r esult of splice. Opti c al Fibe r Lo ss Even tho ugh fiber o ptic cable can carry light signals ov er a lo ng distan ce, optical power loss is a sig nificant factor .
Des igni ng a nd Ex pand ing the Net wor k 2 - 11 Max imum Link Distance C alculation The fo llowin g exam p les use the inf ormat ion provided in t he prev ious p ages to calcu late the m aximu m allow able fiber o ptic lin k distan ce bet ween two ports.
2 - 12 ON lin e Ethernet 10B ASE-FL Installation and Operat ion G uid e Exam ple : Fiber Link Thr ough Patch Panels Figure 2-2 illu strates two O Nline Co ncen trato rs are separated by 170 0 meters of fiber cab le with two patch p anels in between. If we u se 50/125 fiber cable, the op tical p ower budg et a ccordin g to T abl e 2-3 is 10.
Des igni ng a nd Ex pand ing the Net wor k 2 - 13 Cho osi ng a Netw ork Bac kb o ne C abl ing Structu re Becaus e of fi ber's long-d istanc e capab ilities and immu nity to no ise, 3Com str ongly r ecommends using f iber as t he backbone .
2 - 14 ON lin e Ethernet 10B ASE-FL Installation and Operat ion G uid e . Figure 2-3. S tar -Wiring Config ur ation Serial C onfig uration Use a serial c on figuratio n (Figu r e 2-4) for smaller d iameter n etwo rks tha t are not expec ted to gr ow .
Des igni ng a nd Ex pand ing the Net wor k 2 - 15 . Figure 2 -4. S erial Configuratio n Us i ng 10BASE-FL Module s 10BASE-FL M odul e Co nfig uration s The theoretical maximu m diameter of an all fiber Ethe r net netwo rk is limit ed to 4.2 km as def ined by th e 51.
2 - 16 ON lin e Ethernet 10B ASE-FL Installation and Operat ion G uid e This se ctio n describes the fo llowin g scenario s : ❑ 10B ASE-FL Backbone, 10 BAS E - FL to-th e-Desk ❑ 10B ASE-FL Backbon.
Des igni ng a nd Ex pand ing the Net wor k 2 - 17 4. Each 1 0BASE-FL Module counts a s one h alf of a repeater . The 802.3 specific ation limits th e numb er of repe at ers between any tw o netwo rk statio ns to 4 . This r es trict s t he nu mber of serially-c on nected 10B ASE-FL Mo dule s to a m ax imum of 8.
2 - 18 ON lin e Ethernet 10B ASE-FL Installation and Operat ion G uid e Network Dista nce C alculation Examples The foll owing exam ples demo nstrate how to calcu late networ k distances for v ariou s al l-10BA SE-FL n etwo rks. Exam ple : A N etwork with 3 Co ncentrator s Refer to Fig ure 2- 5, wh ich show s a networ k with 3 con cen trato rs.
Des igni ng a nd Ex pand ing the Net wor k 2 - 19 . Figure 2-6. Ne t work with 6 Concentrato rs In this example, the path betw een transceivers attaching C oncentrators A and F has the gr eatest fiber equ ivalent distance of 4440 meters (2200 + (4 * 560) = 44 40).
2 - 20 ON lin e Ethernet 10B ASE-FL Installation and Operat ion G uid e Becaus e it i s no t always obvious which path b etween tran sceivers ha s the gre at est fi ber equivalent distance, use T able 2-6 to help you determine the equivalent distanc es.
Des igni ng a nd Ex pand ing the Net wor k 2 - 21 Be aware of the fo llowin g tw o add itional ru les: ❑ Ensure that there a re no mor e than eig ht 10BASE-F L Modules ( a n d/or 10BASE-T M odules) .
2 - 22 ON lin e Ethernet 10B ASE-FL Installation and Operat ion G uid e . Figure 2-7. Sample Configuration D ist ance Calculation T o ma k e the c onfiguratio n in Figu r e 2-7 work, ensure the fiber equivalent distance betw een transceiver A and transceiv e r B is less than 4200 meters.
Des igni ng a nd Ex pand ing the Net wor k 2 - 23 ❑ Inco ming signal from T ran sceiver A to the 1 0B ASE-T Modu le = 420 m . ❑ Ou tgoin g sign al from th e 10B ASE-T M odule to T ransceiv er B = 165 m (4 20 m + 1 65 m = 585 m ).
2 - 24 ON lin e Ethernet 10B ASE-FL Installation and Operat ion G uid e Therefore, for each pair of ONline Fiber M odules that a signal p asses thr o ugh, t her e is a fiber equiva l ent distance of 190 meters (1 40 m + 50 m = 190 m).
Des igni ng a nd Ex pand ing the Net wor k 2 - 25 T o det erm in e if t he netw ork co nf igu ratio n in Fi gu re 2-8 is legal : 1. Us e 4200 meters as the maximum netw ork diam eter as defined by the 802 .3 specificatio n. 2. Subtract the eq uivalent fiber d istance fo r each 1 0BASE-FL Module in the sign al path between T r ansceivers A and B.
2 - 26 ON lin e Ethernet 10B ASE-FL Installation and Operat ion G uid e Exam ple : Connecting a Th in Eth ernet (1 0BAS E2) Se gment Figure 2- 9 shows a typic al Thin Eth ernet segm ent c onnect ed to an O Nline Concen trator th rough an I EEE 802.3 Repeater .
Des igni ng a nd Ex pand ing the Net wor k 2 - 27 Note: In the r everse dire ctio n, a signal origin ating at T ran sceiver A loses 165 m of fiber equivalent distance w hen it exits the 10BA SE-T M odule t o wh ich T ransceiver B is connec ted a nd 330 meters for the s ignal ent ering the 10BASE-FL M odule in the botto m co ncen trator .
2 - 28 ON lin e Ethernet 10B ASE-FL Installation and Operat ion G uid e Fault-T oleran t C onfi gurati ons This section co ntains descripti ons of the redundan cy features built i nto th e ONli ne 1 0BASE-F L M odul e.
Des igni ng a nd Ex pand ing the Net wor k 2 - 29 ❑ Remote Failur e Signaling Config uration - If r edundanc y i s enabled at th e oth er en d of t he fib er link, you m ust enable r emote failu re signalin g for all con nect ing 10BASE-F L Mo du le po rts.
2 - 30 ON lin e Ethernet 10B ASE-FL Installation and Operat ion G uid e Figure 2-10. Re d undant Fiber Backbone Confi guratio n Note: Always enable r edundancy in the low er level concentr ators (those co nnectin g to th e cent ral concen trato r s i n the star -wir ed topology).
Des igni ng a nd Ex pand ing the Net wor k 2 - 31 Remote Failu re Sign alin g In any redundan t link path, you can designate (that is, activate) o nly one end a s a redundant port pair (1-2 or 3- 4). Y ou mu st enabl e r emo te failure signaling (RFS) if p orts are connected to fiber with redu ndancy en abled at the other end .
2 - 32 ON lin e Ethernet 10B ASE-FL Installation and Operat ion G uid e Impl ementing T ota l Back bon e Faul t T o lera nce Y ou can add a b ackup ON lin e System Con centrator to provide total backbon e fau lt toler ance and lin k r e d undan cy fo r y our b ackbone netw ork .
Des igni ng a nd Ex pand ing the Net wor k 2 - 33 Exam ple : Netw o rk with Th ree Conc entrators an d a Fo urth Conce ntrato r in Full Redundancy Configuration In th e follo wing exam ple, t hr ee co nc e ntrat ors ar e active. Figure 2 -12. Network With 3 C once ntrato rs Concentrato r B is a redundant conc entrator for Co ncentrato r A.
2 - 34 ON lin e Ethernet 10B ASE-FL Installation and Operat ion G uid e In Figure 2-1 2 , if the m ain link from Co ncen trato r A to C on centrato r C faults , the sig nal path enab led through redund ancy inclu des C oncentrator B.
Installing an d O perat ing t he Modu le 3 - 1 3 Inst alli ng and Operati ng the Module This chapter d escribes the installation pr ocedures for the ON line Ether net 10BAS E -FL M odule. For your conven ience , a quick reference installatio n chart is inclu ded.
3 - 2 ONl ine Ethern et 10 BA S E-FL Installatio n and Op eration G uide Pr ec autio nary Pro c ed ures Electrostatic discharge (ESD) can damage static-sen s itive d evices o n circuit boar ds.
Installing an d O perat ing t he Modu le 3 - 3 4. Keep th e carto n and anti-stat ic bag in wh ich you r mod ule was shipp ed for repackagi ng th e m od ule for st orage o r s hipm ent.
3 - 4 ONl ine Ethern et 10 BA S E-FL Installatio n and Op eration G uide Setting th e Dip Switc hes The 10BA SE-FL M odule has tw o 8-posit ion dip sw itch e s (SW1 and SW 2) located on the rear of t h e boar d. Figure 3-1 show s t he l ocation and defau lt settin gs o f th e SW 1 and SW2 dip sw itche s .
Installing an d O perat ing t he Modu le 3 - 5 Figure 3-1. 1 0BASE-FL M o dule Dip Sw itch Locations Setting Dip Switch SW1 The SW1 di p switch o n the 10BA SE-FL Mod ule contains 8 dip switches.
3 - 6 ONl ine Ethern et 10 BA S E-FL Installatio n and Op eration G uide T able 3-2 lists the fu nc tions an d setting s for sw itch SW1 . For a definit ion o f each dip swit ch fu nc tion , refer to the Con figuri ng the Mo du l e section. T able 3-2.
Installing an d O perat ing t he Modu le 3 - 7 Setting Dip Switch SW2 The SW2 di p switch o n the 10BA SE-FL Mod ule contains 8 dip switches. Switches 7 and 8 ar e not f unctio nal.
3 - 8 ONl ine Ethern et 10 BA S E-FL Installatio n and Op eration G uide T able 3-4 lists the fu nction s and settin gs for sw itc hes 5 and 6. For a definitio n of each dip switch f unctio n, refer to th e Configu ring the Mod ule sectio n in this chap ter .
Installing an d O perat ing t he Modu le 3 - 9 2. Locate a blan k slot in th e con centrator . If there is no blank slot, re m ove a blan k panel on the con centrato r to expose a slot for the 10B ASE-FL Mo dul e . 3. In sert the mo du le into the bo ard guid es at t he top an d bott om of th e slot and slide i t in to the conc entrator .
3 - 10 ON lin e Ethernet 10B ASE-FL Installation and Operat ion G uid e Figure 3-3. 1 0BASE-FL M o dule Connection 7. Make sure that the t ransmit an d receive c ables are: ❑ Clearly m arked o r co lor c oded . ❑ Con nected to th e appropr iate ports on th e 10B ASE-F L Modu le.
Installin g and Op erating th e Mod ule 3 - 11 Make sure that the transmit fiber at o ne end always c onnects to a r eceiv e port at the ot her end. Caution: Do not c onnect th e 10B ASE-FL Mo du le t.
3 - 12 ON lin e Ethernet 10B ASE-FL Installation and Operat ion G uid e When you f irst inst all the mod ule: 1. The netwo rk (chan nel) defaul ts to isolat ed m od e.
Installin g and Op erating th e Mod ule 3 - 13 Selectin g a Ne twork The ONline 10 BASE-FL M odule is equipped with the tech nology to work with th e ON lin e C oncent rator's uniqu e T riChann el™ Arch itectu r e.
3 - 14 ON lin e Ethernet 10B ASE-FL Installation and Operat ion G uid e For exam ple, when yo u enabl e redun dan cy: 1. Port 1 bec omes the pr imary lin k a n d port 2 is the redundan t link. 2. If th e primar y link (por t 1) f ails , th e r e dun dant lin k (port 2) is engag ed au to mat ically , t hus prevent ing a netwo rk f ailure.
Installin g and Op erating th e Mod ule 3 - 15 Enab lin g Remote Failu re S ignal ing Due to the n atur e of the 10 BAS E-FL standard, the receive path of a r edund ant port c an detect no light an d partitio n errors, but th e transm it path cannot d etect thes e errors.
3 - 16 ON lin e Ethernet 10B ASE-FL Installation and Operat ion G uid e T o enable RFS for a port, issue the following man agem ent command: SE T PO RT { sl ot .
Installin g and Op erating th e Mod ule 3 - 17 This display tells yo u the status of the specific p ort. It inclu des the manag em ent m o dul e a nd dip swit ch settin gs from the bo a r d .
3 - 18 ON lin e Ethernet 10B ASE-FL Installation and Operat ion G uid e . Figure 3 -5. 1 0BASE-FL M odule Fa ce pla t e and ON line System Conce ntrato r.
Installin g and Op erating th e Mod ule 3 - 19 T able 3- 5 describes ho w to interp ret the 10BASE-F L Modu le LEDs. T able 3-5. I n terpretin g the 10 B A SE-FL Module LED s LED N a me C o lor State Ind icates Activit y Y ellow Off No packets are received on the fiber segment.
3 - 20 ON lin e Ethernet 10B ASE-FL Installation and Operat ion G uid e V erifyin g the LED an d Network Ass ignmen ts Once y ou install the modul e, verify its operatio n through the fr o nt panel of the ONline Con tr o ller Module. The C ontr o ller Mod ule is equipped with a n LED c heck bu tton on the fr o nt p anel.
Troublesh oot ing 4 - 1 4 T rou ble shooting This chapter describ es fault con dition s and t r ou bleshoo ting su ggesti ons for the 10BA SE-FL M od ule.
4 - 2 ONl ine Ethern et 10 BA S E-FL Installatio n and Op eration G uide T r ou bles ho otin g Using the Port Acti vity LEDs If a port Ac tivi ty L ED d oes not light, use the T able 4-1 to help trou bleshoot the problem .
Troublesh oot ing 4 - 3 T r oublesh o oting Usi n g the P ort Stat us L EDs A blinkin g Port Status ind icato r is always a s i gn that the po rt detects a potenti al problem . Onc e a port det ects a prob lem, yo u can furth er a nalyze the problem by co unting th e numb er of blinks.
4 - 4 ONl ine Ethern et 10 BA S E-FL Installatio n and Op eration G uide 1 Blink (cont inued) No Lig ht Received In sufficient opt ica l powe r r eceiv ed. Chec k 10BASE-FL Mo dul e optical power using a lig ht m eter . Chec k opti cal po wer of r e mot e de v i ce.
Troublesh oot ing 4 - 5 R FS T r oubl eshoo tin g When y ou en able redundanc y for a port on one 1 0BASE-FL Mo dule (splices), you must enable Rem o te Failure Signaling (RFS) o n the correspond ing p or t of th e re m ote 10 BASE-FL M odule to wh ich it is connec ted.
4 - 6 ONl ine Ethern et 10 BA S E-FL Installatio n and Op eration G uide ❑ V ersio n of software installed on y ou r 10BASE-F L Mo dule ❑ Status of th e fron t panel L EDs ❑ Con figurati on o f .
Sp ecific ations A - 1 A Spec if ica tions This appendi x lists specifi catio ns for the 10B ASE-FL M odule, including: ❑ Gen eral Specif icatio ns ❑ Op tical S pecific ation s ❑ Po wer R equire.
A - 2 ONl ine Ethernet 10 BA SE-FL In stallatio n and Operatio n Gu ide General Spec i fic ation s T able A-1 lists gen eral specifi cations for the 10BA SE-FL Mod ule. T able A -1. Ge neral Sp e cificat i ons 10BA S E-FL M odule M odel num ber 51 04M- FL1 Collisio n Detec tio n 100% determi nistic Configuration Ru les C o mpliant with IEEE 802.
Sp ecific ations A - 3 Opti cal Spec ifi catio ns This se ctio n lists the optic al specifi cations for the 10B ASE-F L M odu le, includ ing : ❑ T r ansm itter Sp ecificatio ns ❑ Receiver Spec ifi.
A - 4 ONl ine Ethernet 10 BA SE-FL In stallatio n and Operatio n Gu ide Receiv er Speci ficati o ns T able A-3 lists receiver specif icatio ns for t he 10 BAS E-FL Mod ule. Suppo rted Fi be r Optic C able s Y ou can use th e following fib er op tic cables with the 10 BASE-FL M od ule: ❑ 50/12 5 ❑ 62.
Sp ecific ations A - 5 Fiber Op tic In ter f a ce T able A-4 lists speci fications fo r the fiber op tic interfac e. Power R eq uir e ments T able A-5 lists po wer re q uirements fo r the 10 BASE-FL Modul e.
A - 6 ONl ine Ethernet 10 BA SE-FL In stallatio n and Operatio n Gu ide Environmen tal Sp eci fic atio n s T able A-6 lists electr ical speci fications fo r the 10BA SE-FL Mod ule. Mech an ic al Sp eci fic atio ns T able A-7 lists m echanic al specific ations for the 10BASE-F L Modu le.
Sp ecific ations A - 7 10BASE-FL C able and Con necto r Sp ec ificati ons This section contains information on 1 0BASE-FL an d fiber pr o ducts, c ables, and c onnectors. Use th e informatio n in the following sec tions to ensure that t he cables and c onnecting hardwar e meet r equir e ments.
A - 8 ONl ine Ethernet 10 BA SE-FL In stallatio n and Operatio n Gu ide Fib er Co nnec tors The 10BA SE- FL M odule is available in ST -, SMA- , and FC- type fiber connec tor s for di rect connec tion to a F iber Ether net L AN. When you order the 10BA SE-FL Module, use the par t nu mber listed in T able A-8 fo r the correct c onnecto r typ e.
Technical Support B - 1 B T e chnic al Support 3Com prov ides easy acc ess to t echnical suppo rt in form ation through a variety of servic es. This appendix descri bes the fol lowing services: ❑ On.
B - 2 Onli ne Ethern et 10 BA SE- FL Installatio n and Op eration G uide Email T ech n ical Supp ort Y ou can contact the Integrated Systems Division (form erly Chipc om) on th e Inter net fo r technical suppo rt using th e e-m ail address techsu pp@c hip com .
Technical Support B - 3 When you con tact your net work sup plier for assistance, have the f ollow ing inform at ion ready : ❑ Diagn ostic er r or messages ❑ A list of system hardwa re and sof twa.
B - 4 Onli ne Ethern et 10 BA SE- FL Installatio n and Op eration G uide For access to customer service for all 3Com pr oducts, call (80 0) 876-3266. Y ou can also c ontact the Integ rated Systems Division (ISD) on t he Internet by u sing the e-mail addres s techsup p@ chipc om.
Technical Support B - 5 3. En ter you r fu ll Inter net e-mail add r ess as t he pa ssw or d (for exam ple, jdoe @c ompan y. com ). 4. Chan ge to th e mib or schem a directo ry using the cd /p ub /mibs or cd /p ub/ mi bs /s ch em as c o mmand. 5. T o view t he 3C o m M IB, O ID, or schem a e ntries, enter the di r command.
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Inde x 1 Inde x Numerics 10BAS E-FL Links Determine M ax imum Distanc e , 2-6, 2-7 10BAS E-FL Module Assign a Network To , 3-12 Configuring , 3-11 Connectio ns , 1-3, 3-10 Connectors , 1 - 2 Distance .
2 Inde x Twisted Pair To-The-Desk , 2- 2 0, 2- 22 Configuration Topolo gies Serial C onfigur a tion , 2-14, 2-15 Star Configuration , 2 - 1 3 Configuring the M odule , 3 - 1 1 Connect External Network.
Inde x 3 L LAN Produc t Equivalent Distances , 2 - 5 LEDs Interpret i ng , 3-18 Location o f , 3-17 Monitorin g , 3-17 Port A ctiv ity L EDs , 4 - 2 Port L EDs , 3 - 1 4 Port Status L EDs , 4-3 Redund.
4 Inde x Specifications Environmental , A-5 Gener al , A-1 Mechanic al , A- 5 Optical , A-2 Power Requirements , A-4 Splice Ins ertion Loss , 2 - 9 Splicing Broken Cables , 2 - 9 Fusion Splic e , 2-9 .
デバイス3Com 5104M-FL1の購入後に（又は購入する前であっても）重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります：
3Com 5104M-FL1をまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこには3Com 5104M-FL1の技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。3Com 5104M-FL1の取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。3Com 5104M-FL1で得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
3Com 5104M-FL1を既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又は3Com 5104M-FL1の不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、3Com 5104M-FL1に関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわち3Com 5104M-FL1デバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。
