Cisco SystemsメーカーXR 12404の使用説明書/サービス説明書
ページ先へ移動 of 168
Americas Headquarters Cisco S yste ms, Inc . 170 W est Tasma n Drive San Jose , CA 95134 -1706 USA http://ww w.cisco. com Tel: 408 526-400 0 800 55 3-N ETS ( 6387 ) Fax: 408 527- 0883 Cisco XR 1 2404 Router Installation Guide Text Pa rt Numbe r: OL-13 830-02 todd.
THE SPECIFICA TIONS AND INFORMA TION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTI CE. ALL ST A TEMENTS, INF ORMA TION, AND RECOMMEN D A TIONS I N THIS MANUAL ARE BELIEV ED TO BE ACCURA TE BUT ARE PRESENTED WITHOUT W ARRANTY OF ANY KIND, EXPRESS OR IMP LIED.
Any Internet Protocol (IP) addresses used in t his document are not intended to be act ual addre sses. Any examples, command displ ay outp ut, and figures included in the do cument are shown f or illustr ativ e purpo ses only. Any use of actual I P addresses in illus trative conte nt is un intentional and coincidental.
todd.book Page 4 Tuesday, July 24, 2007 3:54 PM.
v Cisco XR 12404 Router Installat ion Guide OL-13830-02 CONTENTS About Th is Guide ix Audienc e ix Pur pose ix Instal lati on Gu ide O rganiz atio n x Document Conv entio ns xi Obtain ing Documentati .
Contents vi Cisco XR 12404 Router Installati on Guide OL-13830-02 Cable Mana gement System 1-22 Mainten ance Bus 1-24 Powe r-On/ Off C ontro l 1-24 CHAPTER 2 Prepari ng for Ins tallati on 2-1 Tools an.
vii Cisco XR 12404 Router Installat ion Guide OL-13830-02 Conte nts Suppleme ntal Bond ing and Grounding C onnect ions 3-8 Connect i ng RP an d Line Card Cables 3-12 Connect i ng to the Cons ole Port .
Contents viii Cisco XR 12404 Router Installati on Guide OL-13830-02 Removing and Repl acin g the Air F ilter 5-7 Remo ving an d Rep lacing the Fa n Tray As semb ly 5-10 Troubl eshoo ting the Fa n Tray.
ix Cisco XR 12404 Router Installat ion Guide OL-13830-02 About This Guide Audience The au dience for the Cisco XR 12404 Router In stallati on Guide user documen tation are the peo ple who will install a nd conf igure a Cisco XR 12404 Rou ter.
About Th is Guide Installation Guide Or ganization x Cisco XR 12404 Router Installati on Guide OL-13830-02 Installation Guide Organization The Cisc o XR 12404 Rout er Installa tion Guid e has the following chap ters and appendi x; the paper versi on of this docum ent may cont ain an index.
xi Cisco XR 12404 Router Installat ion Guide OL-13830-02 About Thi s Guide Docum ent Conv entions Document Co nventions This public ation uses the followin g con ventions: • The key combina tion Ctrl-z means hold do wn the Contro l key while yo u press the z key .
About Th is Guide Obtaining Documentation, Obtaining Support, and Security Guidelines xii Cisco XR 12404 Router Installati on Guide OL-13830-02 T imesaver Means t he d escri bed act ion saves ti me . Y ou can s a v e tim e by pe rforming the action describe d in th e parag raph.
1-1 Cisco XR 12404 Router Installat ion Guide OL-13830-02 CH A P T E R 1 Cisco XR 12404 Router Overview This cha pter p rovides an overv iew of the C isco X R 124 04 ro uter . It c ontai ns physical de scripti ons of the route r hardware and major com ponen ts, and functi onal descr iptions of ha rdware-re lated fea tures.
Chapter 1 Cisco XR 12404 R outer Overview Physic al and Funct ional De scripti on of Router 1-2 Cisco XR 12404 Router Installati on Guide OL-13830-02 Figur e 1 -1 Cisco XR 12 404 Rou ter—F ront V iew Physical and Functio nal Descrip tion of Router The Cisc o XR 12404 router supports up to 8 chassis in a one stand ard 7-foot (2.
1-3 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Cha pter 1 Ci sco XR 12404 Router O ver view Route Pr ocessor • A C power entry m odule ( PEM)—A customi zed an d hot-swappa ble on e-piece unit. See the “Po wer En try Modu les” s ection on page 1- 17 fo r informa tion.
Chapter 1 Cisco XR 12404 R outer Overview Route P rocess or 1-4 Cisco XR 12404 Router Installati on Guide OL-13830-02 The Cisco PRP-2 deli vers al l these f unctions with en hanced per formance and capabiliti es.
1-5 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Cha pter 1 Ci sco XR 12404 Router O ver view Route Pr ocessor Performanc e Route Proce ssor Overvie w The perf ormanc e route pr ocessor (PR P) uses a M otorol a Po werPC 74 50 CPU that runs at an extern al bus cloc k speed of 133 M Hz and has an interna l cloc k speed of 667 M Hz.
Chapter 1 Cisco XR 12404 R outer Overview Route P rocess or 1-6 Cisco XR 12404 Router Installati on Guide OL-13830-02 PRP Ethernet Ports and St atus LEDs The PRP ha s two 8-pi n medi a-depend ent i nter face (MD I) RJ- 45 po rts for eith er IEEE 8 02.
1-7 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Cha pter 1 Ci sco XR 12404 Router O ver view Route Pr ocessor PRP Auxiliary and Console Ports The auxiliary and console ports on the PRP are EIA/T IA-232 (also kno wn as RS-232) asyn chron ous serial ports.
Chapter 1 Cisco XR 12404 R outer Overview Route P rocess or 1-8 Cisco XR 12404 Router Installati on Guide OL-13830-02 PRP Alphanumeric M essage Displays The alp hanumer ic message di splays ar e organized in two rows of four LED char acte rs each ( Figure 1-4 ).
1-9 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Cha pter 1 Ci sco XR 12404 Router O ver view Route Pr ocessor PRP Memory Components This sect ion describe s v arious types of memory used on the PRP to suppor t router functions.
Chapter 1 Cisco XR 12404 R outer Overview Route P rocess or 1-10 Cisco XR 12404 Router Installati on Guide OL-13830-02 Figur e 1 -5 PRP Memory L ocations E J E C T RX TX P R I M A R Y SLOT -1 SLOT -0 .
1-11 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Cha pter 1 Ci sco XR 12404 Router O ver view Route Pr ocessor PRP SDRA M The PRP uses Error Check ing and Corr ection (E CC) Synchron ized Dy namic Rand om Acce ss Memory (SD RAM) to stor e routing ta ble s, pr otoc ols, netw ork accoun ting applica tions, and t o run Cisco IOS softwar e.
Chapter 1 Cisco XR 12404 R outer Overview Route P rocess or 1-12 Cisco XR 12404 Router Installati on Guide OL-13830-02 PRP NVRA M Non-v o latile Rand om Access Memory (NVRAM ) pro vides 2 MB of memory for system co nfiguration files, softwar e register settin gs, and en vironme ntal monitoring logs.
1-13 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Cha pter 1 Ci sco XR 12404 Router O ver view Supp orted Lin e Cards Supported Line Cards The Cisc o XR 12404 rout er is shipped with up to three installe d line cards and one route pro cessor th at provide a variety of net work media ty pes.
Chapter 1 Cisco XR 12404 R outer Overview Supported Line Cards 1-14 Cisco XR 12404 Router Installati on Guide OL-13830-02 Figure 1-7 shows e xamp les of si ngle- mode an d multimo de line car ds.
1-15 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Cha pter 1 Ci sco XR 12404 Router O ver view Consoli dated S witch Fa bric C ard Consolidated Switch Fabric Card The Ci sco XR 124 04 ro uter.
Chapter 1 Cisco XR 12404 R outer Overview Consoli dated Switc h Fabric Card 1-16 Cisco XR 12404 Router Installati on Guide OL-13830-02 • LEDs – LEDs ale rt you to a conditi on in the router . The determinati o n of a critic al, major, or minor ala rm condi tion is de signed int o Cisco IO S XR software run ning on your rou te processo r .
1-17 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Cha pter 1 Ci sco XR 12404 Router O ver view Power Ent ry Modules Switch Fabric Functionality Switch fabri c circuitry pr ovides up to 40 Gbp.
Chapter 1 Cisco XR 12404 R outer Overview Power Entry Modules 1-18 Cisco XR 12404 Router Installati on Guide OL-13830-02 AC PEMs Each A C PEM con verts 200 to 240 V A C into -48 VDC, which is distribu ted throug h the chass is back plan e to all card s, RPs, an d the fan assem bly .
1-19 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Cha pter 1 Ci sco XR 12404 Router O ver view Power Ent ry Modules DC PEMs Each DC PEM oper ates from a nominal sou rce D C v oltag e of -4 8 to - 60 VDC a nd requir es a dedicated 60 am p servic e.
Chapter 1 Cisco XR 12404 R outer Overview Fan Tray Assemb ly 1-20 Cisco XR 12404 Router Installati on Guide OL-13830-02 The status LED s on the DC PE M provid e in format ion about t he cu rrent operati onal status o f the power supply . Ta b l e 1 - 5 summ arizes th e funct ion of these indicator s.
1-21 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Cha pter 1 Ci sco XR 12404 Router O ver view Fan Tray Asse mbly The fan tray asse mbly is a she et metal en closure containing 7 fans and 2 fan contro lle r cards ( Figure 1-10 ).
Chapter 1 Cisco XR 12404 R outer Overview Cable M anagem ent Syste m 1-22 Cisco XR 12404 Router Installati on Guide OL-13830-02 Cable Manag ement System The Cisc o XR 12404 rout er is set up with two .
1-23 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Cha pter 1 Ci sco XR 12404 Router O ver view Cable Man ageme nt System • Chassi s cable-m anagem ent brack et (se e Figur e 1-1 2 )—Atta ched to the chass is and rou tes th e line car d cable s away from the chass is.
Chapter 1 Cisco XR 12404 R outer Overview Mainte nance Bus 1-24 Cisco XR 12404 Router Installati on Guide OL-13830-02 Maintenance Bus The Ci sco XR 124 04 ro uter m aintenanc e bus and M Bus m odules manage a ll of the mainte nance fu nctions of the system.
1-25 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Cha pter 1 Ci sco XR 12404 Router O ver view Mainte nance Bus Code Download A portion of the line ca rd operat ing softwar e can be downloade d from the ro ute processor to the line car d ov er the MBus.
Chapter 1 Cisco XR 12404 R outer Overview Mainte nance Bus 1-26 Cisco XR 12404 Router Installati on Guide OL-13830-02 todd.book Page 26 Tuesday, July 24, 2007 3:54 PM.
2-1 Cisco XR 12404 Router Installat ion Guide OL-13830-02 CH A P T E R 2 Preparing for Installation This chapte r provide s specif ic informatio n about prepari ng your site for the installati on of the Cisco XR 12404 Route r.
Chapter 2 Preparing for Installation Tools an d Equipm ent 2-2 Cisco XR 12404 Router Installati on Guide OL-13830-02 Tools and Equ ipment The Cisc o XR 12404 Router is de signed to be installe d with a m inimum number of tools. The f ollowing tools are requir ed.
2-3 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 2 Preparing f or Installa tion Safety and Compliance General Safety Guidelines The fol lo wing are so me gene ral safety guidelin es you should be a ware of whe n installing or maintain ing the Cisco XR 12404 Router.
Chapter 2 Preparing for Installation Safety and Comp liance 2-4 Cisco XR 12404 Router Installati on Guide OL-13830-02 • A Cisco XR 12404 Route r configured with a DC PEM require s a de dicated 35–Amp DC ci rcuit b reaker f or t he DC power source.
2-5 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 2 Preparing f or Installa tion Safety and Compliance Attaching an ESD-Preventive Str ap Attach an ESD antis tatic st rap to your body an d to an open metal pa rt of the chass is on the Cisco XR 1240 4 Route r ( Figure 2- 1 ).
Chapter 2 Preparing for Installation Safety and Comp liance 2-6 Cisco XR 12404 Router Installati on Guide OL-13830-02 Lase r Safety Single-m ode style line cards f or the Cisco XR 12404 Ro uter a re equ ipped wit h lasers, wh ich emit invisible radiati on.
2-7 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 2 Preparing f or Installa tion Safety and Compliance Figur e 2-2 Lif ting a Cisco XR 12404 Rout er Each time you lif t an y heavy asse.
Chapter 2 Preparing for Installation Safety with El ectr icity 2-8 Cisco XR 12404 Router Installati on Guide OL-13830-02 Safety with Electricity Most Cisc o XR 1 2404 R outer field rep laceabl e unit .
2-9 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 2 Preparing f or Installa tion Installation Site Requirements Rack Mounting Clearance The rac k-moun ting hardware inclu ded with t he Cisco XR 124 04 Router is suitabl e for mo st 19 inc h equi pment ra cks.
Chapter 2 Preparing for Installation Installati on Site Requirem ents 2-10 Cisco XR 12404 Router Installati on Guide OL-13830-02 Figure 2-3 shows the outer di mensions of t he Cisco XR 12404 Router cha ssis with the front doo r installe d. Figur e 2-3 Cisco XR 12 404 Router Ch assis O ute r Dimen sions— T op V iew 66280 31.
2-11 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 2 Preparing f or Installa tion Installation Site Requirements Environmental Guidelines This se ction offers guideli nes for oper atin.
Chapter 2 Preparing for Installation Installati on Site Requirem ents 2-12 Cisco XR 12404 Router Installati on Guide OL-13830-02 Figur e 2-4 Cisco XR 12 404 Router Ai r Cir culatio n S yst em Temperature and Humidity The op erating en vironmental site r equireme nts are listed in Appendix A.
2-13 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 2 Preparing f or Installa tion Installation Site Requirements Power Con nectio n Guidelines The Cisc o XR 12404 Router requ ires an AC PEM or a combination DC PD U and DC PEM. Site req uirements differ depend ing on the type of power sourc e v oltage.
Chapter 2 Preparing for Installation Installati on Site Requirem ents 2-14 Cisco XR 12404 Router Installati on Guide OL-13830-02 Figur e 2-5 Cisco XR 12 404 Rou ter A C P ow er Plugs Power Connec tion.
2-15 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 2 Preparing f or Installa tion Installation Site Requirements • Install an unint errupta ble power source where possible. Grounding Connections Before yo u connect power or turn on your Ci sco XR 12404 Ro uter, you must provide an ad equate system grou nd for the rou ter .
Chapter 2 Preparing for Installation Unpacki ng and Repack ing the Cisco XR 12404 Router 2-16 Cisco XR 12404 Router Installati on Guide OL-13830-02 Note T o predic t and remedy stro ng EMI, you ma y need to co nsult experts in radio freque ncy interfe rence (RFI) .
2-17 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 2 Preparing f or Installa tion Transpor ting a Cisco XR 120 00 Series Router If you do not receive ev e rythi ng you o rdered, contac t a cu stomer se rvice represen tati ve for assistan ce.
Chapter 2 Preparing for Installation Site Prepa ration Checklist 2-18 Cisco XR 12404 Router Installati on Guide OL-13830-02 Ta b l e 2 - 1 shows a sample site log. Y ou can make copies of t he sample or design your own site log. T able 2-1 Sample Sit e Log Date Description of Action Performed or Symptom Observed Initials todd.
2-19 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 2 Preparing f or Installa tion Site Prep arat ion Check list todd.book Page 19 Tuesday, July 24, 2007 3:54 PM.
3-1 Cisco XR 12404 Router Installat ion Guide OL-13830-02 CH A P T E R 3 Installing the Router This chap ter de scribe s ho w to ins tall a Cisco XR 12404 R outer.
3-2 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 3 Instal ling the Route r Installing a Cisco XR 12404 Router Required To ols Y ou need the follo wing items to install the Cisco XR 12.
Chapte r 3 Install ing the Router Installing a Cisco XR 12404 Router 3-3 Cisco XR 12404 Router Installati on Guide OL-13830-02 • Labels o n the eq uipm ent ha ve been ch ecke d to ensure tha t the po wer servic e at your si te is suita ble for th e Cisco XR 12 404 Router.
3-4 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 3 Instal ling the Route r Installing a Cisco XR 12404 Router Figur e 3-1 Rack-Mo unting Bra c k ets 57802 3/4" 1 1/4" 2 1/2" 3 3/8" 1/16" sheet metal Left mounting rail Right mounting rail todd.
Chapte r 3 Install ing the Router Installing a Cisco XR 12404 Router 3-5 Cisco XR 12404 Router Installati on Guide OL-13830-02 Installing the Ce nter-Mounting Brackets—Optional If you plan to insta .
3-6 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 3 Instal ling the Route r Installing a Cisco XR 12404 Router Figur e 3-2 Center -Mounting Brack ets 66286 CONSOLIDA TED SWITCH FABRIC .
Chapte r 3 Install ing the Router Installing a Cisco XR 12404 Router 3-7 Cisco XR 12404 Router Installati on Guide OL-13830-02 Installing the Chassis in a Rack Use the follo wing procedure to install the Cisco XR 12404 Router in a r ack.
3-8 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 3 Instal ling the Route r Supplem ental Bon ding and Ground ing Con nection s Installing the Chassis on a Tabletop or Flat Surface Use the following procedure t o install the Ci sco XR 12404 Rout er on a tablet op or o ther s table f lat surf ace.
Chapte r 3 Install ing the Router Supplemen tal Bond ing and Groundi ng Connect ions 3-9 Cisco XR 12404 Router Installati on Guide OL-13830-02 • On Cisco X R 1240 4 Router s configured for DC-in put.
3-10 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 3 Instal ling the Route r Supplem ental Bon ding and Ground ing Con nection s Use a c able lug with two holes a t 0.63 " (16 mm ) cent ers to connect to the chassis with t wo 6.3 m m (M6) screws as sh o wn in Figure 3-4 .
Chapte r 3 Install ing the Router Supplemen tal Bond ing and Groundi ng Connect ions 3-11 Cisco XR 12404 Router Installati on Guide OL-13830-02 Figur e 3 -5 Cr imping the Lug 1 Place gro und wire in the lu g 2 Crimp the lug 57808 2 1 todd.
3-12 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 3 Instal ling the Route r Connect ing RP and Line Car d Cables Connecting RP and Lin e Card Cables Use the foll o wing pr ocedu re to connec t RP and line ca rd cables to the router .
Chapte r 3 Install ing the Router Connecting RP an d Line Card Cab les 3-13 Cisco XR 12404 Router Installati on Guide OL-13830-02 Cautio n Caref ully adju st th e interf ace cable in the RP or line ca rd cable-man agement bracket to prev ent any kinks or sharp bend s in the int erface cable.
3-14 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 3 Instal ling the Route r Connecting to the Console Port and Auxiliary Ports Connecting to the Console Port and Auxil iary Ports This secti on pro vides the informati on to connect a console to the route r .
Chapte r 3 Install ing the Router Connecti ng to the Consol e Port and Au xiliary Port s 3-15 Cisco XR 12404 Router Installati on Guide OL-13830-02 Figur e 3-8 PRP Console and A uxiliary P o rt Co nne.
3-16 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 3 Instal ling the Route r Connecting to the Console Port and Auxiliary Ports PRP Conso le Port Signals The cons ole po rt on th e PRP is a DCE RJ -45 re ceptacle. Ta b l e 3 - 1 lists the signals used on this port .
Chapte r 3 Install ing the Router Installing a Flash Mem ory Card 3-17 Cisco XR 12404 Router Installati on Guide OL-13830-02 PRP Auxiliary Port Signals The auxiliary por t on the PRP is a DTE, RJ-45 plug for connecting a modem or other DCE device (such a s a CSU/DS U or an other rout er) to t he router.
3-18 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 3 Instal ling the Route r Connect ing the PRP to an Ethern et Net work The software configurati on register is set to 0x0102, whic h causes the rou ter to boot auto matically f rom the Cisco IOS XR softwar e image stor ed on th e Flash memory c ard.
Chapte r 3 Install ing the Router Connecting t he PRP to an Ethernet Network 3-19 Cisco XR 12404 Router Installati on Guide OL-13830-02 RJ-45 c abl es are not available f rom C isco S yst ems, b ut are available from o utsid e comm ercia l cab le vendor s.
3-20 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 3 Instal ling the Route r Connect ing the PRP to an Ethern et Net work Figur e 3-1 0 Using the Ether net P or t on the P RP PRP Ethernet Connecti ons Figure 3-11 shows a PRP RJ-45 receptacl e and cable conn ector s.
Chapte r 3 Install ing the Router Connecting t he PRP to an Ethernet Network 3-21 Cisco XR 12404 Router Installati on Guide OL-13830-02 War ni ng The ports labeled Ethernet, 10BASE-T , T oken Ring, Console, and AUX are safety extra-low voltage (SEL V) circuits.
3-22 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 3 Instal ling the Route r Connect ing the PRP to an Ethern et Net work Figur e 3-13 Crosso ver Cable Pinout (f or Connectin g T wo PRPs) Ta b l e 3 - 4 lists the cabling sp ecif ication s for 100-Mb ps transmi ssion o ver unshiel ded twiste d-pair (UTP) cabl es.
Chapte r 3 Install ing the Router Connecting t o an AC Power Sourc e 3-23 Cisco XR 12404 Router Installati on Guide OL-13830-02 Ta b l e 3 - 5 lists IEEE 802.3u physic al charact eristics for 100B ASE-TX. Connecting to an AC Power Source This secti on provides th e procedu re for conne cting your router to an AC po wer source.
3-24 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 3 Instal ling the Route r Connect ing to an AC Power S ource Step 3 T ighten th e capti ve s cre ws on the PEM f aceplate ( F igu re 3 -14 ).
Chapte r 3 Install ing the Router Connecting t o a DC Power Sou rce 3-25 Cisco XR 12404 Router Installati on Guide OL-13830-02 Step 6 Connec t the other end of the A C po wer cor d to the A C powe r source outlet. Note W e recomm end attac hing ea ch A C PEM to an i ndepend ent power source for fu ll redunda ncy .
3-26 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 3 Instal ling the Route r Connecting to a DC Power Source Use the follo wing procedure to install the DC PEM and D C PDU in the r outer . Step 1 Attach a n ESD-pre venti ve strap to your self and to either the c hassis, or to a bare metal surf ace.
Chapte r 3 Install ing the Router Connecting t o a DC Power Sou rce 3-27 Cisco XR 12404 Router Installati on Guide OL-13830-02 Step 6 Secure each l ead to the prope r termi nal po rt b y tigh tening the ter minal p ort connec tor screws with a 3/1 6-inch fla t-blade screw dri ver ( Fi gur e 3- 16 ).
3-28 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 3 Instal ling the Route r Powering on the Router for the First Time Powering on the Ro uter for the First Time Use the follo wing procedure to po wer on the router for the firs t time.
Chapte r 3 Install ing the Router Powering on t he Router for the First Time 3-29 Cisco XR 12404 Router Installati on Guide OL-13830-02 Step 2 Power on the r outer by swit ching on a ll the c ircuit b.
3-30 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 3 Instal ling the Route r Powering on the Router for the First Time • DC PEMs—V erify the DC PEM LEDs are on an d that the statu s is OK ( Figure 3- 18 ).
Chapte r 3 Install ing the Router Powering on t he Router for the First Time 3-31 Cisco XR 12404 Router Installati on Guide OL-13830-02 • V isually che ck the CSF LEDs ( Figure 3-19 ): Figur e 3-19 .
3-32 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 3 Instal ling the Route r External Network In terface Step 4 On th e co nsole term inal, verify that the consol e dis play s the syst em b anner and that the sy stem an d all i nterfac es initiali ze successfully .
Chapte r 3 Install ing the Router Manuall y Booting t he System 3-33 Cisco XR 12404 Router Installati on Guide OL-13830-02 todd.book Page 33 Tuesday, July 24, 2007 3:54 PM.
4-1 Cisco XR 12404 Router Installat ion Guide OL-13830-02 CH A P T E R 4 Troubleshooting the Installation This c hapter p rovides trou bleshooti ng gui delines for Cisco XR 1240 4 router. If the solutions pro vided in this chapter do not make th e router fully f unctional , conta ct your Cisc o servic e repres enta tiv e for assi stan ce.
Chapt er 4 Troublesho otin g the Insta llation Iden tify ing S tartu p Pro blem s 4-2 Cisco XR 12404 Router Installati on Guide OL-13830-02 Identifying Startup Problems Startup pro blems are commo nly due to power source fail ures or to a card not properl y seated in the backplane .
4-3 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 4 Troubles hooting the I nstallation Identifying Startup Problems Using the Sy stem LED s to Troubles hoot Y ou can det ermine when a .
Chapt er 4 Troublesho otin g the Insta llation Iden tify ing S tartu p Pro blem s 4-4 Cisco XR 12404 Router Installati on Guide OL-13830-02 – All internal DC v oltages are within tolerance.
4-5 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 4 Troubles hooting the I nstallation Problem-Solving with Subsystems Problem-Solving with Subsystems The ke y to solving router problem s is to isolate the problem to a specif ic subsys tem.
Chapt er 4 Troublesho otin g the Insta llation Troublesho oting an AC Pow er Subsystem 4-6 Cisco XR 12404 Router Installati on Guide OL-13830-02 Troubleshooting an AC Power Subsystem A C PE Ms provide –48 VDC OUTPU T . The +5 VDC OU TPUT from the CSF po wers the MBus module on eac h card in the sy stem.
4-7 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 4 Troubles hooting the I nstallation Troubl eshoo ting an AC Power Subs ystem Ta b l e 4 - 1 summarizes the functio n of these in dicat ors.
Chapt er 4 Troublesho otin g the Insta llation Troublesho oting an AC Pow er Subsystem 4-8 Cisco XR 12404 Router Installati on Guide OL-13830-02 • V erify that each po wer supply in the router is attac hed to a separate A C power source.
4-9 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 4 Troubles hooting the I nstallation Troubl eshoo ting t he DC Power S ubsystem • If no, b ut the fan assembly is operati ng, suspect a faulty po wer supply INPUT OK LED. If the f an assembl y is operating , all internal DC vol tages are wit hin to lerance.
Chapt er 4 Troublesho otin g the Insta llation Troubles hooting the D C Power Subs ystem 4-10 Cisco XR 12404 Router Installati on Guide OL-13830-02 Figur e 4-2 DC PEM and P DU Ta b l e 4 - 2 summarizes the functio n of these in dicat ors.
4-11 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 4 Troubles hooting the I nstallation Troubl eshoo ting t he DC Power S ubsystem The follo wing conditions must exists for a DC PEM to operate norma lly: • The PEM is ful ly sea ted in its bay an d the ejecto r le vers are secu red.
Chapt er 4 Troublesho otin g the Insta llation Troubles hooting the D C Power Subs ystem 4-12 Cisco XR 12404 Router Installati on Guide OL-13830-02 Step 4 Power off the PEM c ircui t breake r switc h and ch eck th e DC power sourc e: • Check t he DC power wire s from the po wer source t o the r outer .
4-13 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 4 Troubles hooting the I nstallation Troublesh ooting the Processo r Subs ystem If you a re una ble to resolve t he probl em or if you determ ine tha t either the PE M or po wer wiring is fa ulty , contact a service re presentati ve for ass istanc e.
Chapt er 4 Troublesho otin g the Insta llation Troubles hooting t he Proce ssor Subsystem 4-14 Cisco XR 12404 Router Installati on Guide OL-13830-02 Troublesho oting the RP When the router is po wered.
4-15 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 4 Troubles hooting the I nstallation Troublesh ooting the Processo r Subs ystem Troubleshooting Using the RP Alphanumeric Display Y ou can use the alp hanumeric di splay to isolate a pro blem with the RP .
Chapt er 4 Troublesho otin g the Insta llation Troubles hooting t he Proce ssor Subsystem 4-16 Cisco XR 12404 Router Installati on Guide OL-13830-02 T able 4-3 T rouble shooting Usi ng the RP Alphanum.
4-17 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 4 Troubles hooting the I nstallation Troublesh ooting the Processo r Subs ystem The RP has 8 de vice or port LED activity indica tors that show the statu s of the Ether net conne ctions ( Figure 4-4 ).
Chapt er 4 Troublesho otin g the Insta llation Troubles hooting t he Proce ssor Subsystem 4-18 Cisco XR 12404 Router Installati on Guide OL-13830-02 Check the follo wing to help isolate a problem wi th the RP . • Are bo th alphanu meric LED di splays on? – The two displ ays are powered se parately .
4-19 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 4 Troubles hooting the I nstallation Troubl eshoot ing the C ooling S ubsystem Troublesho oting the Lin e Cards As each lin e card po wers on, a po wer- on self- test (POST) is perf ormed on the line card mem ory .
Chapt er 4 Troublesho otin g the Insta llation Troubles hooting t he Cool ing Subs ystem 4-20 Cisco XR 12404 Router Installati on Guide OL-13830-02 • 7 fans • 2 control ler card s • 1 connect or.
4-21 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 4 Troubles hooting the I nstallation Troubl eshoot ing the C ooling S ubsystem clearance (at least 6 in ches, 15 .24 cm) around all side s of the chassis to allo w cooli ng air to ent er and hot air to exhaust.
Chapt er 4 Troublesho otin g the Insta llation Troubles hooting t he Cool ing Subs ystem 4-22 Cisco XR 12404 Router Installati on Guide OL-13830-02 todd.
5-1 Cisco XR 12404 Router Installat ion Guide OL-13830-02 CH A P T E R 5 Maintaining the Router This chapte r cont ains safety at th e f ield replac eable unit ( FR U) le vel, re mo v al an d replaceme nt instruct ions for FR Us and proce dures to troub leshoot the FRUs.
Chapt er 5 Maintain ing the R outer Tools an d Equipm ent 5-2 Cisco XR 12404 Router Installati on Guide OL-13830-02 • Removi ng and Replacing the Air Filte r , p age 5-7 • Remo ving and R eplac in.
5-3 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 5 Maintaini ng the Router Powering Off the Router Powering Off the Router Unless otherwise note d, the maintenance tasks descri bed in this chapter can be perform ed whil e the r outer re mains po wered o n.
Chapt er 5 Maintain ing the R outer Removing and I nstalling t he Front Cover 5-4 Cisco XR 12404 Router Installati on Guide OL-13830-02 Removing and Installing the Front Cover This sec tion desc ribes how to chan ge the front cover to open from left-to -right by installing the hi nge on the opposite side.
5-5 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 5 Maintaini ng the Router Removing and Installing the Front Cover Step 2 Remove the fron t cover by lift ing th e (top and bot tom) hin ge pins to fre e the cover from the chas sis ( Figure 5-2 ).
Chapt er 5 Maintain ing the R outer Removing and I nstalling t he Front Cover 5-6 Cisco XR 12404 Router Installati on Guide OL-13830-02 Step 4 Remove the b umpers and pivot blocks from t he cover as sho wn i n Figure 5-3 .
5-7 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 5 Maintaini ng the Router Removing and Repl acing th e Air Fil ter Step 6 Attach th e front co ver to the chassis : a. Remove the hinge pins fro m the hinges on t he right side of the chassis.
Chapt er 5 Maintain ing the R outer Removing and Replacing t he Air Filter 5-8 Cisco XR 12404 Router Installati on Guide OL-13830-02 Use the follo wing procedure to clean or re place the air f ilters. Step 1 Grasp t he small tab on the edge o f the air f ilter an d pull t h e tab to remo ve the air filter from the c hassis ( Figure 5-4 ).
5-9 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 5 Maintaini ng the Router Removing and Repl acing th e Air Fil ter Step 3 Reinstall the air f ilter into the chassis not ing the d irection of the ai rflo w arro ws on the top of the air f ilter f rame ( Figure 5-5 ).
Chapt er 5 Maintain ing the R outer Removing and Replacing t he Fan Tray Assem bly 5-10 Cisco XR 12404 Router Installati on Guide OL-13830-02 Removing and Re placing the Fan Tray Assembly Use the follow ing pr ocedu re to remo ve and replac e the fan tray a ssembly .
5-11 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 5 Maintaini ng the Router Removin g and Repla cing the Fan Tray Assemb ly Step 2 Grasp t h e han dle and p ull the fan tray assemb ly ou t of th e ch assis ( F igur e 5-7 ). • Support the bott om of t he assemb ly with your ot her hand when removing t he fan tr a y .
Chapt er 5 Maintain ing the R outer Removing and Replacing t he Fan Tray Assem bly 5-12 Cisco XR 12404 Router Installati on Guide OL-13830-02 Troublesho oting the Fa n Tr ay Assembly Installation Use the follo wing proced ure to troubleshoot the f an tray assembly if it is not operati ng properly a fter installati on.
5-13 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 5 Maintaini ng the Router Removing and Rep lacing a n AC Power Entry Mo dule Removing an d Replacing an AC Power Entry Module Althoug.
Chapt er 5 Maintain ing the R outer Removing and Replacing an AC Power Ent ry Module 5-14 Cisco XR 12404 Router Installati on Guide OL-13830-02 Figur e 5-8 A C PEM Comp onents Ti p If yo u plan to r eturn the defecti ve PEM to the f actory , repack age it in the sh ipping conta iner y ou re ceived with t he re place ment PEM.
5-15 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 5 Maintaini ng the Router Removing and Rep lacing a n AC Power Entry Mo dule Step 11 Po wer on the circui t breaker assigned to that A C outlet. Step 12 Po wer on the PEM. • The gr een Input OK and Output OK L EDs shou ld be on.
Chapt er 5 Maintain ing the R outer Removing and Replacing an AC Power Ent ry Module 5-16 Cisco XR 12404 Router Installati on Guide OL-13830-02 1 Input OK Gree n On The PEM is powered on and opera ting corr ectly . 2 Outp ut OK Green On The A C power source is prese nt and opera ting within th e specif ied limit.
5-17 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 5 Maintaini ng the Router Removin g and Re placing a DC Power Entry Mo dule Step 1 If the Input OK and Output OK LE Ds a re off, or if the Output Fail LED is on, make sure that the: • PEM is fir mly se ated in the bay and the capti ve scr ew s are tighte ned s ecurely .
Chapt er 5 Maintain ing the R outer Removing and Replaci ng a DC Power Entr y Module 5-18 Cisco XR 12404 Router Installati on Guide OL-13830-02 Step 4 Remov e th e PEM from the chassis using the f inger grips to pull it out. War ni ng A DC PEM weighs approximately 11.
5-19 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 5 Maintaini ng the Router Removin g and Re placing a DC Power Entry Mo dule Step 5 Slide the replace m ent PEM into the bay until it is seate d to the backplane conn ector . • Make sure the po wer switch is in th e of f (0) positi on.
Chapt er 5 Maintain ing the R outer Removing and Replaci ng a DC Power Entr y Module 5-20 Cisco XR 12404 Router Installati on Guide OL-13830-02 Troubleshooting the DC PEM Installation Refer to Figu re 5-11 and use the fol lowing procedure to troubleshoo t the PEM installati on.
5-21 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 5 Maintaini ng the Router Remov ing a nd Rep lacin g a DC PDU Step 1 Make sure the po wer supply is seated properly: • Eject and rese at the po wer supply . Make sure that the: – Capti ve sc re w on the ejecto r le ver are tightened secu rely .
Chapt er 5 Maintain ing the R outer Removing and Replacing a D C PDU 5-22 Cisco XR 12404 Router Installati on Guide OL-13830-02 Step 1 Po wer of f both PEMs (item 5 in Figure 5-12 ). Figur e 5-12 DC PEM and PDU Co mponents Step 2 Power off the circ uit brea kers assi gned to t he D C power sourc e.
5-23 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 5 Maintaini ng the Router Remov ing a nd Rep lacin g a DC PDU Step 3 Loosen th e terminal block screws to discon nect the posi tiv e , negative , and grou nd wires from the DC PDU terminal block of the f aulty PEM ( Figure 5-13 ).
Chapt er 5 Maintain ing the R outer Removing and Replacing a D C PDU 5-24 Cisco XR 12404 Router Installati on Guide OL-13830-02 Step 4 Loosen the capti ve scre ws securing th e PDU and the PEM to the ch assis (se e item 6 in Figu re 5- 12 ). Step 5 Remov e the PDU/PEM from the ch assis using t he f inger g rips to p ull it out.
5-25 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 5 Maintaini ng the Router Remov ing a nd Rep lacin g a DC PDU Step 10 Connect the ground, po siti ve , and ne gativ e wires t o the PDU terminal bl ock in th e following or der ( Figur e 5-15 ): a.
Chapt er 5 Maintain ing the R outer Removing and Replacing a D C PDU 5-26 Cisco XR 12404 Router Installati on Guide OL-13830-02 Step 11 Po wer on the circ uit br eaker s assi gned to th e DC po wer sou rce. Step 12 Po wer on both PEMs. • The gr een Input OK and Output OK L EDs shou ld be on.
5-27 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 5 Maintaini ng the Router Remov ing a nd Rep lacin g a DC PDU Troubleshooting the DC PDU Installation Refer to Figu re 5-16 and use the fol lowing procedure to troubleshoo t the PDU installati on.
Chapt er 5 Maintain ing the R outer Removing and Replacing a D C PDU 5-28 Cisco XR 12404 Router Installati on Guide OL-13830-02 Step 1 If the Input OK and Output OK LE Ds a re off, or if the Output Fail LED is on, chec k that the : • PEM is fir mly se ated in the bay and the capti ve scr ew s are tighte ned s ecurely .
5-29 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 5 Maintaini ng the Router Remov ing a nd Rep lacing an RP or Line Card Removing and Re placing an RP or Line Card Line cards c an occupy a ny slot, zero (0 ) throug h 3 i n the RP and li ne ca rd cag e.
Chapt er 5 Maintain ing the R outer Removing and Replacing an RP or Line Card 5-30 Cisco XR 12404 Router Installati on Guide OL-13830-02 Step 1 Identify th e RP or line card to be replaced and write do wn the follo wing inform ation: • The RP cable connect ions on the RP .
5-31 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 5 Maintaini ng the Router Remov ing a nd Rep lacing an RP or Line Card Step 6 Grasp th e edges of th e card ca rrier with bo th hand to support it and re move the card . Caution R emo ve ea ch RP or l ine c ard completely fr om the slot s.
Chapt er 5 Maintain ing the R outer Removing and Replacing an RP or Line Card 5-32 Cisco XR 12404 Router Installati on Guide OL-13830-02 Step 9 T ighten th e capti ve s cre ws on the card. Note The card capti ve scre ws must be tight ened to m eet EMI specif ication standards.
5-33 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 5 Maintaini ng the Router Remov ing a nd Rep lacing an RP or Line Card Step 3 Use a fla t-blade screwdri ver to secure th e two captive screws.
Chapt er 5 Maintain ing the R outer Removing and Replacing an RP or Line Card 5-34 Cisco XR 12404 Router Installati on Guide OL-13830-02 Step 6 Proceeding from th e left p ort on the line card to the .
5-35 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 5 Maintaini ng the Router Removing and Replacing a Consoli dated Switch Fabr ic Card Removing and Re placing a Conso lidated Switch Fabric Card Use the foll o wing pr ocedu re to remo ve and replac e a CSF card.
Chapt er 5 Maintain ing the R outer Removing and Replacing a Con solidated Switch Fabri c Card 5-36 Cisco XR 12404 Router Installati on Guide OL-13830-02 Step 4 Slide the CSF half-way out of t he slot, then stop.
5-37 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Chapter 5 Maintaini ng the Router Upgrading the RP and Line Car d Memory Upgrading th e RP and Line Card Memory Upgrad ing the RP a nd lin e card mem ory is pr esented i n the C isco XR 120 00 Series Router Memory R eplacement Instructions .
Chapt er 5 Maintain ing the R outer Upgradi ng the RP and Line Card Memory 5-38 Cisco XR 12404 Router Installati on Guide OL-13830-02 todd.book Page 38 Tuesday, July 24, 2007 3:54 PM.
A-1 Cisco XR 12404 Router Installat ion Guide OL-13830-02 APPENDIX A Technical Specifications This a ppendix contai ns the following sec tions: • Product Archit ectur e, pag e A-2 • Compliance Infor mation, page A-5 • Regulatory , Compli ance, a nd Saf ety Info rmati on, pag e A-8 todd.
Append ix A Technical Spec ification s Product A rchitecture A-2 Cisco XR 12404 Rou ter Installatio n Guide OL-13830-02 Product Architecture Ta b l e A - 1 lists system level requirement s for the Cisco XR 12404 Router.
A-3 Cisco XR 12404 Route r Installation Guide OL-13830-02 Append ix A Technical Spec ification s Product Architecture Specifications Ta b l e A - 2 lists Cisco XR 12404 Router physical specifications. Ta b l e A - 3 lists the en vironmen tal specif ications.
Append ix A Technical Spec ification s Product A rchitecture A-4 Cisco XR 12404 Rou ter Installatio n Guide OL-13830-02 T able A -2 Cisco XR 12404 Rout er Ph ysical Specif ications Description V alue Frame height 8.75 in ches (22.2 c m) Frame width 19 inches (4 8.
A-5 Cisco XR 12404 Route r Installation Guide OL-13830-02 Append ix A Technical Spec ification s Compliance Information Cautio n Exhaust fr om other equipm ent vented dir ectly int o the Cisc o XR 12404 R outer ai r inlet may cause o verheating. I nstall the router so that it is protected from a direct flow of hot air from other equipm ent.
Append ix A Technical Spec ification s Complianc e Infor mation A-6 Cisco XR 12404 Rou ter Installatio n Guide OL-13830-02 ETSI EN 3 00386-2/ EN55022 B (Noncen tral of fice) 1.
A-7 Cisco XR 12404 Route r Installation Guide OL-13830-02 Append ix A Technical Spec ification s Compliance Information Cond ucted RF Immunity EN610 00-4-6: 1996+ ENV501 41:1993 A C power line DC pow .
Append ix A Technical Spec ification s Regulat ory, Compliance, an d Safety Info rmation A-8 Cisco XR 12404 Rou ter Installatio n Guide OL-13830-02 Regulatory, Compliance, an d Safety Info rmation Thi.
A-9 Cisco XR 12404 Route r Installation Guide OL-13830-02 Append ix A Technical Spec ification s Regulatory, Compliance, and Safety Information Operat ion of t his equip ment in a residen tial are a is lik ely to cause har mful interf erence , in which cas e users will be requir ed to cor rect the interfer ence at their own expense .
Append ix A Technical Spec ification s Regulat ory, Compliance, an d Safety Info rmation A-10 Cisco XR 12404 Rou ter Installatio n Guide OL-13830-02 Europe—EU This appara tus compli es with EN550 22.
A-11 Cisco XR 12404 Route r Installation Guide OL-13830-02 Append ix A Technical Spec ification s Regulatory, Compliance, and Safety Information Class A Notice for Hunga ry Class A Notice for Taiwan a.
Append ix A Technical Spec ification s Regulat ory, Compliance, an d Safety Info rmation A-12 Cisco XR 12404 Rou ter Installatio n Guide OL-13830-02 Class A Notice for Kore a War ni ng This is a Class A Device and is registered for EMC requirements for industrial use.
IN- 1 Cisco XR 12404 Router Installat ion Guide OL-13830-02 INDEX Numerics 100BASE- T maximu m cable lengt hs 3-23 specifi cations 3-22 transm ission recomm enda tions 3-22 A AC power cords 2-14 air f.
Index IN-2 Cisco XR 12404 Router Installati on Guide OL-13830-02 elect romagnetic co mpatibi lity regulator y statem ents A-8 elect romag netic e mission s compli ance A- 5 ETSI comp liance A-7 immuni.
IN- 3 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Index NEBS EMC requir ements A-7 regu latory co mplianc e statements A-8 EMI appro vals A- 8 preven tion 2-15 EMP 2-16 enviro nmenta l monit.
Index IN-4 Cisco XR 12404 Router Installati on Guide OL-13830-02 N NEBS compl iance A-7 supplem ental bond ing an d grou nding connect ion 3-9 NMI switch 1-7 nonmaskable in terrupt 1-7 NVRAM PRP descr.
IN- 5 Cisco XR 12404 Router Installat ion Guide OL-13830-02 Index RJ-45 ports 1-6 ROM moni tor mode 1-7 router startup 3-28 RP LED f ront pane l 4-17 LEDs 4-17 soft reset switch 4-15 RP soft reset (NM.
Index IN-6 Cisco XR 12404 Router Installati on Guide OL-13830-02 DC-input power su bsystem 4-13 power pro blems 4-2 power subsyst em 4-6, 4-9 processor su bsystem 4-18 startup pro blems 4-2 troublesh .
デバイスCisco Systems XR 12404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:
Cisco Systems XR 12404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Cisco Systems XR 12404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。Cisco Systems XR 12404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。Cisco Systems XR 12404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。
Cisco Systems XR 12404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Cisco Systems XR 12404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、Cisco Systems XR 12404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Cisco Systems XR 12404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。