Manuale d’uso / di manutenzione del prodotto 10292FA del fabbricante Nortel
Vai alla pagina of 70
Part No. 212257-B January 2002 4401 Great Americ a Parkw ay Santa Clara, CA 9 5054 Installation and Networking Guidelines for Optical Routing.
2 212257 -B Copyright © 2002 Nortel Networks All rights reserved. Januar y 20 02 . The informat ion in this docume nt is subject to change without notice.
3 Ins tallat ion and Networ king Guide lines fo r Op tical Routin g Japan/Nippon requirements only V oluntary Control Council for Interfer ence (VCCI) statement T aiwa n requir ements Bureau of Standa.
4 212257 -B Nortel Networks Inc. sof twar e lice nse agreement NOTICE: Please carefu lly read this lice nse agreeme nt before copy ing or usin g the accomp anying soft ware or installin g the hardware unit wi th pre-en abled soft ware (each of which is referred to as “Software” in this Agreeme nt ) .
5 Ins tallat ion and Networ king Guide lines fo r Op tical Routin g to any th ir d pa rty the So f tware, or any infor mat ion ab out t he ope rat io n, des ign, perfo rman ce, or i mplem entat i on o.
6 212257 -B Licens ee fails to comply with any of the terms and c onditio ns of the lic ense. Upon termin ation for a ny reason, Lic ensee will immedia tely destroy or return to Nortel Networks the So ftware, user manuals, and al l copies .
7 Ins tallat ion and Networ king Guide lines fo r Op tical Routin g Contents Pref ace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 3 Before you begin . . . . . . . . . . . . . . . . . . .
8 Contents 212257 -B Chapter 3 Insta ll i ng the shelf, OADM, and OMUX . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Preparing for i nstalla tion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9 Ins tallat ion and Networ king Guide lines fo r Op tical Routin g Figures Figure 1 W ave length division m ultip lexing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Figure 2 CWDM GB IC transcei ver and label . . . . . . . . . . .
10 Figures 212257 -B.
11 Ins tallat ion and Networ king Guide lines fo r Op tical Routin g Ta b l e s T able 1 Parts of the optic al routing system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 8 T able 2 Ass umptio ns used i n cal cula ting ma ximu m tran smis sion dis tan ce .
12 Tables 212257 -B.
13 Ins tallat ion and Networ king Guide lines fo r Op tical Routin g Preface Nortel Ne tworks* optic al routi ng system suppor ts high- speed data communic ation s in metrop olitan area net works (MANs) by: • Connect ing Gigabi t Ethernet ports with fi ber opti c networks.
14 Pref ace 212257 -B Before you begin This gui de is intended f or network admin istrato rs who have the fol lowing backg round: • Basic knowled ge of ne tworks, and net work har dware • Famil ia.
Preface 15 Install ation a nd Network ing Gui delines for Opti cal Ro uting How to ge t help If you pu rchased a ser vice c ontract for your Norte l Networks product from a distri butor or author ized reseller , contact t he technica l support staff for that distri butor or re seller for assis tance .
16 Pref ace 212257 -B.
17 Ins tallat ion and Networ king Guide lines fo r Op tical Routin g Chapter 1 Describing the o p tical routing system Nortel Ne tworks* optic al routi ng system uses c oarse wave length divis ion multipl exing ( CWDM) in a gri d of eight op tical wav elengths.
18 Chapte r 1 Describi ng the optica l routin g syste m 212257 -B Parts of the op tical routing s ystem The optic al routing s ystem incl udes the followi ng parts: • Gig ab it i nte rfac e co n ver.
Chapter 1 Describi ng the o ptical r outing system 19 Install ation a nd Network ing Gui delines for Opti cal Ro uting Figure 2 CWDM GBIC t ransce iver an d label For more i nformation abo ut CWDM GBICs, including spe cificat ions, see Instal ling CWDM Gigabit Inte rface Convert ers, part number 21 2256-B.
20 Chapte r 1 Describi ng the optica l routin g syste m 212257 -B Figure 3 CWDM OADM networ k and equi pment side connec tions The CWDM OADM ( Figure 4 ) is installed in a 19 -inch, rack-mo unted 1RU opti cal sh elf ( Figure 15 ).
Chapter 1 Describi ng the o ptical r outing system 21 Install ation a nd Network ing Gui delines for Opti cal Ro uting Figure 5 shows an example o f two separ ate fiber pat hs in a ring conf iguration trav elin g in oppo site or east /west directions into the net work.
22 Chapte r 1 Describi ng the optica l routin g syste m 212257 -B Figure 6 Four -cha nnel CWDM OM UX front pane l Connec tors with color-cod ed labels ( Ta b l e 1 ) simplify co nnect ion to c olor-c oded CWDM GBICs in the swit ch. CWDM OMUX-4 Figure 7 shows the CWDM OMUX-4 version, wit h four CWDM GBIC equipment side connect ions.
Chapter 1 Describi ng the o ptical r outing system 23 Install ation a nd Network ing Gui delines for Opti cal Ro uting Figure 8 CWDM OMUX -8 network and equ ipm ent si de co nnec ti ons For info rmation about installing a CWDM OMUX, se e “Inserting a CWDM OADM or a CWDM OMUX” on page 38 .
24 Chapte r 1 Describi ng the optica l routin g syste m 212257 -B Figure 9 CWDM OM UX point -to-poi nt configu ratio n exa mple For info rmation about calculating ne twork transmissi on distance, s ee Chapter 2, “Cal cula tin g tr a nsm is si on d ist anc e,” on p a ge 2 7 .
Chapter 1 Describi ng the o ptical r outing system 25 Install ation a nd Network ing Gui delines for Opti cal Ro uting Figure 10 CWDM OMUX ring confi gura tion exam ple For info rmation about calculating ne twork transmissi on distance, s ee Chapter 2, “Cal cula tin g tr a nsm is si on d ist anc e,” on p a ge 2 7 .
26 Chapte r 1 Describi ng the optica l routin g syste m 212257 -B.
27 Ins tallat ion and Networ king Guide lines fo r Op tical Routin g Chapter 2 Calculating transmission distance This chapt er will hel p you determin e the maximum trans mission dis tance for your CWDM network conf igurati on.
28 Chapte r 2 Calc ulatin g tran smissi on di stanc e 212257 -B How to calculate expected loss budget T o calc ulate the ex pected los s budget for a propos ed netw ork conf igura tion: 1 Identi fy all points whe re signal str ength will be los t. 2 Calculat e the expect ed loss f or each point.
Chapter 2 Calculat ing trans missi on distan ce 29 Install ation a nd Network ing Gui delines for Opti cal Ro uting Procedure T o calc ulate the maximum tr ansmission di stance f or a proposed ne twork conf igurat ion: 1 Identi fy all points whe re signal str ength will be los t.
30 Chapte r 2 Calc ulatin g tran smissi on di stanc e 212257 -B Ta b l e 3 sho ws t ypi cal l oss val ues that can be u sed to ca lcu lat e the tran sm i ssi o n distanc e for the poi nt-to-poin t network in Figure 1 1 .
Chapter 2 Calculat ing trans missi on distan ce 31 Install ation a nd Network ing Gui delines for Opti cal Ro uting As it pas ses from point A to point B (the most remote p oints in the mesh ri ng net.
32 Chapte r 2 Calc ulatin g tran smissi on di stanc e 212257 -B Ta b l e 5 sho ws t ypi cal l oss val ues that can be u sed to ca lcu lat e the tran sm i ssi o n distanc e for the mesh ring netwo rk example in Figure 12 .
Chapter 2 Calculat ing trans missi on distan ce 33 Install ation a nd Network ing Gui delines for Opti cal Ro uting Hub and spo ke transmis sion distance Hub and Spoke to pologies a re the most co mplex. The characterist ics of all components designed int o the netwo rk must be consi dered in c alculating transmi ssion distance.
34 Chapte r 2 Calc ulatin g tran smissi on di stanc e 212257 -B Ta b l e 7 sho ws t ypi cal l oss val ues that can be u sed to ca lcu lat e the tran sm i ssi o n distanc e for the hub and spok e network i n Figure 13 .
35 Ins tallat ion and Networ king Guide lines fo r Op tical Routin g Chapter 3 Installin g the shelf, OADM , and OMUX The sh elf and mul tiplexers are passive equipment and require n o power or electr onic This cha pter d escribes how to install o ptical rout ing compo nents, and include s the following t opics.
36 Chapte r 3 Insta lling the shel f, OADM, a nd OMU X 212257 -B Figure 14 C lass 1M la ser w ar ning Environmental and physical requirements The opt ical routi ng syst em is m ounte d in an o ptica l shel f with connec tions at the front of t he modu le.
Chapter 3 Installi ng the she lf, OA DM, and OMUX 37 Install ation a nd Network ing Gui delines for Opti cal Ro uting • Clear the area of synthetic mat erials such as polyester , plas tic, vinyl , or styrof oam because the se materia ls ca rry stat ic electrici ty that damage s the equipment .
38 Chapte r 3 Insta lling the shel f, OADM, a nd OMU X 212257 -B Figure 15 She lf with plug-in modul e in 19 -inch rac k Inserting a CWDM OADM or a CWDM OMUX CWDM OADMs and CWDM OMUXs are pass ive de vices tha t require no power for their opera tion.
Chapter 3 Installi ng the she lf, OA DM, and OMUX 39 Install ation a nd Network ing Gui delines for Opti cal Ro uting T o inse rt a CWDM OADM or a CWDM OMUX in the optical s helf: 1 Align th e plug-in modul e with the opt ical shel f. 2 Gently pu sh the plug-i n module into the s helf cavit y .
40 Chapte r 3 Insta lling the shel f, OADM, a nd OMU X 212257 -B 2 Insert the wavelengt h-specif ic CWDM GBICs into t heir respe ctive net work device( s) . T o install a CWDM GBIC, se e I nstal ling CWDM Gigabit Interf ace Conver ters, par t number 212256- B.
Chapter 3 Installi ng the she lf, OA DM, and OMUX 41 Install ation a nd Network ing Gui delines for Opti cal Ro uting Cabling a four-channel CWDM OM UX This sec tion descri bes how to ca ble the foll .
42 Chapte r 3 Insta lling the shel f, OADM, a nd OMU X 212257 -B 4 Make th e followi ng network backb one connect ions ( Fig ure 17 ): • Connect the network b ackbone east f iber optic cable s to th e east (lef t) CWDM OMUX-4. • Connect the n etwork back bone west fibe r optic c ables to the west (ri ght) CWDM OMUX-4.
Chapter 3 Installi ng the she lf, OA DM, and OMUX 43 Install ation a nd Network ing Gui delines for Opti cal Ro uting 4 Make th e followi ng network backb one connect ions ( Fig ure 18 ): • Connect the network b ackbone east f iber optic cable s to th e east (lef t) CWDM OMUX-8.
44 Chapte r 3 Insta lling the shel f, OADM, a nd OMU X 212257 -B Removing a CWDM OAD M or a CWDM OMUX CWDM OADMs and CWDM OMUXs are pass ive de vices tha t require no power for the ir operati on. Y ou ca n remove the m from the optical she lf ( Figure 15 ) afte r disconne cting them fr om your network.
45 Ins tallat ion and Networ king Guide lines fo r Op tical Routin g Appe ndix A CWDM OADM specifications Ta b l e 9 CW DM OADM sp ecifi catio ns Item S pec if ica tion Physica l Dim ensi on s Plug-in M odul e Size Rack Mount 8.35 ” x 1.7" x 1 0.
46 Appendi x A CWDM OADM sp ecifi cations 212257 -B.
47 Ins tallat ion and Networ king Guide lines fo r Op tical Routin g Appe ndix B CWDM OMUX specifications Ta b l e 1 0 CWDM OMUX s pecificati ons Item Specification Physica l Dim ensi on s Plug-in M odul e Size Rack Mount 8.
48 Appendi x B CWDM OMUX sp ecifi cations 212257 -B.
49 Ins tallat ion and Networ king Guide lines fo r Op tical Routin g Appe ndix C Handling and cleaning fiber optic equipment Precautions Although t he glass opt ical path of fi ber optic ca ble is pr otect ed with re inforcing mate ri al an d p last ic in sul atio n, it is sub ject to d amag e.
50 Appendi x C Handling and clea ning fi ber opti c equi pment 212257 -B Frequ ent ove rstr essing of fi ber optic cable causes progressiv e degenerati on that lead s to f ailure. If you s uspect damage to a f iber optic cab le, either d ue to mishandli ng or an abnor mally high e rror rat e observe d in one d irecti on, reverse the cable pairs.
App endix C Handlin g and c leani ng fib er opti c equip men t 51 Install ation a nd Network ing Gui delines for Opti cal Ro uting Before c onnecting the m to tra nsmission equipment, test e quipment, patch panels , or other connectors, clean all fibe r optic conne ctors.
52 Appendi x C Handling and clea ning fi ber opti c equi pment 212257 -B 4 Dry the c onnector surf aces b y apply ing can ned air or letting th em air dry . Cleaning Duplex SC Connectors T o clea n duplex con nector s: 1 T o re mo ve or re tr act t he s hro u d, do one of th e foll ow in g.
App endix C Handlin g and c leani ng fib er opti c equip men t 53 Install ation a nd Network ing Gui delines for Opti cal Ro uting Cleaning Receptacl e or Duplex Devices T o clea n receptacl e or duplex devices: 1 Remove du st or debr is by blowing cann ed air into the optical port of th e devi ce usi ng the c anned ai r ext ension tube.
54 Appendi x C Handling and clea ning fi ber opti c equi pment 212257 -B.
55 Ins tallat ion and Networ king Guide lines fo r Op tical Routin g Glossary attenuation The decre ase in signa l strengt h in an optic al fiber caused by abso rption an d scatte ring.
56 Glos sary 212257 -B CD-ROM compact di sc read-onl y memory A compact di sc with pre-re corded data, no rmally used in la rge dat abase- type applica tions such as directo ry , ref e rence, or data retrieval . cha nne l A communic ation s path o r the sig nal sent over that pat h.
Glos sary 57 Install ation a nd Network ing Gui delines for Opti cal Ro uting demult iplexing The separ ating of dif ferent wav elengt hs in a wavelengt h-division multipl exing s ystem. The opp osite of mult iplexing. dispers ion The broade ning of input pul ses as they t ravel t he length of a n optical fiber .
58 Glos sary 212257 -B fiber See op tical f i ber . fiber loss Also optical f i ber loss. Th e attenua tion of the li ght signal in opt ical -fib er transmi ssion. fiber-optic li nk A combin ation of t ransmitter , rec eiver , and fiber -opti c cable ca pable of trans mit tin g d ata .
Glos sary 59 Install ation a nd Network ing Gui delines for Opti cal Ro uting hub A group of circuits co nnected at one point on a networ k. insertio n loss In an opt ical fiber system , the tota l optical po wer loss caused by insertion o f an op tical compone nt, su ch as a c onnector , splice, o r coupler .
60 Glos sary 212257 -B loss budge t The amou nt of opti cal power lau nched i nto a s ystem that will be lost th rough various mechanisms, such as insert ion losses and fiber attenuatio n. Usually given in dB. MAN metropol itan area networ k A MAN consists of LANs interc onnecte d within a radius of app roximatel y 80 km (50 miles ).
Glos sary 61 Install ation a nd Network ing Gui delines for Opti cal Ro uting NDSF non-d ispersi on-shifted fib er A type of optical fiber optimized for th e 1310 nm transmi ssion window . nanometer See nm. nm nanometer One bi llion th of a meter ( 10 -9 meter).
62 Glos sary 212257 -B each signal l evel thereafte r operates at a speed divis ible by th at number . For example, OC- 3 opera tes at 155 .52 Mbit/s. OC-1 opti cal ca rrie r - level 1 An optica l SONET signal at 51.84 Mbit/s . OC-3 opti cal ca rrie r - level 3 An optica l SONET signal at 155.
Glos sary 63 Install ation a nd Network ing Gui delines for Opti cal Ro uting optica l waveguid e See op tical f i ber . passive dev ice A device t hat does not requir e a sou rce of ene rgy to f unction. passthrough A signal bypass mechanis m that a l lows the signal to pass through a device with little or no signal processing.
64 Glos sary 212257 -B single-mod e fiber See SMF . SMF A mode is o ne of the va rious light wav es that can be tr ansmit ted i n an opt ical fiber . Each o pti ca l si gna l generates many di fferent mode s, but in singl e- mode fiber t he aim is t o only have o ne of them tr ansmitte d.
Glos sary 65 Install ation a nd Network ing Gui delines for Opti cal Ro uting WDM wavelengt h division multi plexing T ransmitti ng many dif ferent colors (wavel engths) o f laser light down the same opti cal fiber at t he same time in order to inc rease the amount of infor ma ti on th at c a n be tran s ferr ed.
66 Glos sary 212257 -B.
Ins tallat ion and Networ king Guide lines fo r Op tical Routin g 67 Index A add/dro p mux connecting cables 39 desc ripti on 19 insert in shelf 38 remove from shelf 44 ring application 20 specificati.
68 Index 212257 -B equipmen t side connecti ons add/dro p mux 39 eight-chan nel mux/demux 42 four -channel mux/ d e mux 41 F FC connectors, cleaning 51 fiber optic cable attenu ation and tran smission.
Index 69 Install ation a nd Network ing Gui delines for Opti cal Ro uting optical routing system desc ripti on 17 shelf, installin g 3 7 P passband, specification add/dro p mux 45 physical dimensions,.
70 Index 212257 -B.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Nortel 10292FA è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Nortel 10292FA - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Nortel 10292FA imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Nortel 10292FA ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Nortel 10292FA, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Nortel 10292FA.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Nortel 10292FA. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Nortel 10292FA insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
