Manuale d’uso / di manutenzione del prodotto M10 del fabbricante Juniper
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M5 and M10 Inter net Router s Hard w are Guide Juniper Networks , Inc. 1 194 North Mathilda A venue Sunny vale , Calif ornia 94089 US A 408-745-2000 www .
This product includes the Env oy SNMP Engine , deve loped by Epilo gue T echnology , an In tegrated Systems Company . Copyright © 1986-1997, Epilogue T echnology Corporation. All rights res erv ed. This program and its d ocumentation wer e de veloped at private expense , and no part of the m is in the public domain.
T able of Con tents About This Manual ..................... ............. ................. ............. ................. ............. . x v Objectives ..................... .............. ................ .............. ............. .............
P o w e r S u p p l i e s ........... ............. .............. ................ .............. ................ .... 1 6 A C P o w e r S u p p l y............ ................ .............. ................ .............. ......... 1 7 D C P o w e r S u p p l y .
P o w e r G u i d e l i n e s , R e q u i r e m e n t s , a n d S p e c i f i c a t i o n s ................ .............. ................ . 4 2 S i t e E l e c t r i c a l W i r i n g G u i d e l i n e s ... .............. ................ ........
Pa r t 3 Hard w are Maintenance, Replacement, and T roubleshooting Procedures Chapter 9 Maintain Hard ware Components .... ................ .............. .............. ................ ......... 7 5 R o u t i n e M a i n t e n a n c e P r o c e d u r e s .
I n s e r t t h e P C C a r d ................... ................ .............. ................ ........ 1 1 4 R e p l a c e t h e R o u t i n g E n g i n e ........ ................ .............. ................ .............. 1 1 5 R e m o v e t h e R o u t i n g E n g i n e .
P o w e r D i s c o n n e c t i o n W a r n i n g ................ ................. .............. ............. 1 4 4 T N a n d I T P o w e r W a r n i n g ................ .............. ................ .............. ..... 1 4 5 I n s t a l l a t i o n S a f e t y G u i d e l i n e s a n d W a r n i n g s .
Index Index ........... .............. ................ .............. .............. ................ .............. ................1 7 9 Ta b l e o f C o n t e n t s ix.
x M5 and M1 0 Internet Routers Har dwar e Guide.
List of F igures List of F igur es F i g u r e 1 : F r o n t o f M 5 C h a s s i s.......... ............. .............. ................ .............. ................ .............. .. 6 Figur e 2: Fro n t o f M 1 0 C h a s s i s ........ ........
List of Figures F i g u r e 4 9 : F E B S e r i a l N u m b e r I D L a b e l .... ................. ............. ................. ............. ................. ..... 1 6 5 Figur e 50: PIC S e r i a l N u m b e r I D L a b e l ........ ...........
List of T ables List of T ables T a b l e 1 : J u n i p e r N e t w o r k s T e c h n i c a l D o c u m e n t a t i o n ... .............. ................ .............. ................ ............ T a b l e 2 : F i e l d - R e p l a c e a b l e U n i t s .
List of T ables xiv M5 and M1 0 Internet Routers Hardwar e Guide.
About This Manual This chapter provides a high-level o vervie w of the M5 and M1 0 Internet Routers Hardwar e Guide : • Objectives on page xv • A udience on page xv • Document Organiz ation on p.
Documentation Co nv entions networ k configura tion. Any det ailed discussion of these conc epts is bey ond the scope of this manual. Document Organization This manual is divided into se v eral parts:.
List of T echnical Publicatio ns Notes , Cautions , and W arnings Notes, cautio ns , and warnings are denoted b y the follo wing symbols: A note indicates information that might be helpful in a particu lar situation or that might oth erwise be ov erlook ed.
List of T echnical Publications Book Description MPLS Applications Provides an o vervie w of traffic engineering concepts and describes how to configur e tr affic engineering protocols . Multicast Pro vides an o vervie w of multicast concepts and describes how to configur e multicast routing prot ocols .
How t o Request Sup port Book Description JUNOScope Software Documentation JUNOScope Softwar e Guide Describes the JUNOScope softwar e graphical user interf ace (GUI), ho w to inst all and administer the so ftwar e , and how to use the softwar e to manage r outer configuration files and monitor r outer operations .
How t o Request Sup po rt xx M5 and M1 0 Internet Routers Har dwar e Guide.
Pa r t 1 Product Over view • System Overvie w on page 3 • Hardw are Component Ov ervie w on page 5 • JUNOS Internet Software Ov ervie w on page 2 1 • System Ar chitectur e Overvie w on page 29.
2 M5 and M1 0 Internet Routers Har dwar e Guide.
Chapter 1 Sy stem Over view This chapter provides an ov erview of the Juniper Networks M5 and M1 0 Internet router s , discussing the following topics: • System Description on page 3 • Field-Repla.
Safety Requir eme nts , W arnings , and Guidel ines • Hot-remov able and hot-insertable FR Us—Y ou can remov e and r eplace these components withou t pow ering do wn the ro uter or disrupting t he rout ing functions . • FRUs that r equire po w ering down the r outer—Y ou must power do wn the ro uter befor e remo ving these components .
Chapter 2 Hard w are Component Over view This chapter pro vides an ov erview of the hardwar e components on the M5 and M1 0 Internet ro uters: • Chassis on page 5 • P acket F orwardi ng Engine on .
Chassis Figure 1: F ront of M5 Chassis 1301 R Craft interf ace Mounting ear PICs ESD point Figure 2: F ront of M10 Chassis 1300 Craft interf ace Mounting ear PICs ESD point 6 M5 and M1 0 Internet Rout.
Chassis Figure 3: Rear of Chassis 1302 P ower supply B P ower supply A Routing Engine cov er F an tra y ESD point F orwarding Engine Board The chass is includes two electrost atic discharge (ESD) points (banana plug r eceptacles) f or electrical safety , one front and one rear , as shown in Figure 1, Fi gure 2, and Figur e 3.
Pa c ke t Fo r w ar d i n gE n g i n e Description V alue W eight, minimum configuration 57 lb (25.8 kg) Thermal output 2550 B TU/hour P acket F orwarding Engine The P acket F orwarding Engine is a mu.
Pa c ke t Fo r w ar d i n gE n g i n e • P ower distribution—The midplane distributes power t o all router components from the pow er sup plies att ached to it. • Signal connectivity—The midplane trans ports the signals e xchanged b y system components for monitoring and control purposes.
Pa c ke t Fo r w ar d i n gE n g i n e Quad-wide PICs , such as the 4-port Gigabit Et hernet and OC-48/STM-16 SONET/SDH PICs , occupy all f our slots in an FPC. Some quad-wid e PICs m ight not be supported on bo th the M5 and M1 0 router s; for mor e inf ormation, see the M5 and M1 0 Internet Routers PIC Guide .
Pa c ke t Fo r w ar d i n gE n g i n e Engine routing link-st ate updates and other p ackets destined for the router that ha ve been receiv ed through the router interfaces .
Rou ti ng E ng in e • Processor subsy stem—Manages FEB functio ns and handles exception packets . The processor has the f ollo wing components: • O n eP o w e r P C6 0 3 ep r o c e s s o r • P arity-prote c te d Level 2 ca c he • P arity-protected DRAM • EEPROM—Sto res the serial number and r evision le v el.
Rou ti ng E ng in e The Routing Engine inst alls into a slot in the FEB at the r ear of the chassis . The Routing Engine is field-replaceable , but you must power do wn the router bef ore r emo ving it from the chassis . P acket forwar ding halts until the Routing Engine is replaced and the r outer is pow ered on.
Cr aft Interf ace F or specific information about R outing Engine components (for ex ample , the capacity of th eh a r dd r i v e ) ,i s s u et h e show chassis routing-engine comm and.
Craft Interf ace F or information about the elements on the cra ft interf ace , see the following sections: • Alarm LEDs and Lamp T est Button on page 15 • Routing Engine Interface P orts and Stat.
P o w er Suppl ies • CONSOLE —Connects the Routing Engine t o a system console thr ough an RS-232 (EIA-232) serial cable . • AUX/MODEM — Connects the Routing Engine to a lapt op, modem, or other auxiliary device thr ough an RS-232 (EIA-232) serial cable .
P o we r Suppli es After pow ering off a pow er supply , wai ta tl e a s t6 0s e c o n d sb e f o r et u r n i n g it back on. Afte r poweri ng on a power supply , wait at least 60 seconds before turning it off.
P o w er Suppl ies T able 5: Electrical Specifications for AC P ower Supply Description Specification Maximum pow er output 800 W A C input voltage Nominal range: 1 00–240 V A C Operating r ange: 1 00–264 V A C A C input line frequency 4 7–6 3H z AC i n p u t c u r r e nt rating 8–4A Output volt ages +1.
Fa n T r a y Description Specificatio n Input DC current rating 13.5 A @ –48 V Output volt ages +1.5 V , +2.5 V , +3.3 V , +5.0 V , +12 V , +12 V The DC pow er suppl ies are mark ed –48 VDC. This is the nominal v olt age associated with the battery circuit.
Cable Management System The fan tr ay is hot-r emov able and hot-insertabl e , as described in “Field-Replaceable Units (FRUs)” on page 3. F or instructions on r eplacing it, see “Replace the F an T ray” on page 82. Do not remo ve the fan t ra y f or mor e than a abo ut one minute while th e router is oper ating.
Chapter 3 JUNOS Inter net Softw are Over view The JUNOS Internet softwar e is especially designed f or the lar ge production netwo rks typically supported b y Internet Service Pr o viders (ISPs). It inco rporates Internet Protocol (IP) routing softwar e and softwar e for management of interf aces , networks , and the router chassis .
Routing Engine So ftwar e Components • SNMP and MIB II Processes on page 26 • Management Process on page 27 • Routing Engine K ernel on page 27 Ro u t i n g P r o to c ol Process The JUNOS softw ar e rout ing pr otoc ol pr ocess contr ols the r outing pr otocols that run on the rout er .
Rou ti ng E ng in e So ftw are Component s • OSPF—Open Shortest P ath First, v er si on 2, is an IGP de ve loped for IP net works by the Internet Engineering T ask F orce (IETF). OSPF is a link-st ate protocol that makes r outing decisions based on the SPF algorithm.
Routing Engine So ftwar e Components IPv6 R outing Protocols The JUNOS Inte rnet softwar e implements full IP routin g functionality , providi ng support f or IP ver sion 6 (IPv6). The routing prot ocols are f ully inter operable with e xisting IP r outing pro tocol s and pro vide the scale and contr ol n ecessary f or the Internet core .
Rou ti ng E ng in e So ftw are Component s In the multicast routing table , the routing protocol pr ocess uses traffic flow and other paramet ers specified b y the multicast rou ting pr otoc ol algorithms t o select active r outes. • MPLS routing t able—Stor es MPLS label inf ormation.
Routing Engine So ftwar e Components VPNs The JUNOS soft ware supports se ver al types of VPNs: • La yer 2 VPNs—A La yer 2 VPN links a set of sites sharing comm on routing information, and whose conn ectivity is controlled by a collection of policies .
T ools for Monitor ing the Softw ar e Management Process The managemen t process starts all the other JUNOS softw are processes and the CLI when the router boots . It monitor s the running JUNOS processes and mak es all reasonable attempts to r estart any pr ocess that terminates.
Softwar e Upgrade s Software Upgrades The router is d eliver ed with the JUNOS Internet software pr einstalled. T o upgrade the softwar e , you use CLI commands to cop y a se t of softwar e images over the netw ork to memory stor age on the Routing Engine .
Chapter 4 Sy stem Architecture Over view The router ar chitecture consis ts of two major components: • P acket F orwarding Engine—P erforms La yer 2 and L ay er 3 packet switching, r oute lookups , and p acket f orw arding. • Routing Engine—Pro vides L ay er 3 routing services and netw ork management.
Pa c ke t Fo r w a rd i n gE n g i n eA r c h i t e c t u r e • Midplane—T ransports packets , notificat ions , and other signals between the PICs and the P acket F orward ing Engine (as we ll as other system components). • Phy sical Interface Car d (PIC)—Phy sically connects the router to fiber-optic or digit al network media.
Rou ti ng E ng in e Ar chitecture Figure 13: P acket Forw arding Engine Components and Data Flow 1335 = ASIC Routing Engine Midplane PIC Controller PIC Controller Packet out Packet in Distributed Buff.
Rou ti ng E ng in e Ar chitecture Figure 14: Routing Engine Architecture JUNOS software System management processes Routing protocols Control functions System processes Operating system K ernel Intel-.
Rou ti ng E ng in e Ar chitecture • Monitoring efficienc y and flexibility—The r outer supports functions such as alarm handling and packet counting on e very port , without degrading pack et-forwar ding perfo rmance . The Routing Engine constructs and maintains one or mor e routing t ables .
Rou ti ng E ng in e Ar chitecture 34 M5 and M1 0 Internet Router s Hardw are Guide.
Pa r t 2 Initial Installation • Prepar e for R outer Inst allation on page 37 • Unpack the Router on page 55 • Install the R outer on page 59 • Connect the Router and P erform Initial Configur.
36 M5 and M1 0 Internet Router s Hardw are Guide.
Chapter 5 Prepare for Router Installation This chapter describes how t o prepar e your site for inst allation of the M5 and M1 0 Internet rout ers . It discu sses the follo wing topics: • Rack R equ.
Rac k Req ui rem en t s • A 600-mm rack as defined in the four-part Equipment Engineering (EE); Eur opean telecommunications st andard f or equipment practice (document number s ET S 300 1 19-1 through 1 19-4 ) published by the European T elecommunications Standards Institute ( http://www .
Rac k Req ui rem en t s Figure 16: T ypical Center-Mount Rack Mounting rails Floor bolts 1011 (2.13 m) 7 ft 19 in. (48.3 cm) Spacing of Mounting Holes The ho les in the mounting br ackets are s paced at 2 U (3.5 in. or 8.89 cm), so the r outer can be mounted in an y rack t hat pro vides holes spaced at that dist ance .
Rou te r En vi ron me ntal T olerances Clearance Requirements for Airflow and Hardw are Maintenance When planning the installation site , you need to allow sufficient clear ance around the rack (see Figur e 17): • F or the coolin g system to function properly , the airflow around the chassis mu st be unrestricted.
Fire Safet y Requi reme nt s Description T o lerance T emperatur e Normal operation ensur ed in temperatur e range of 32° F t o 1 0 4 °F( 0 °Ct o4 0 °C ) Seismic Designed to meet Bellcor e Z one 4.
Pow e r G u i d e l in e s , Requir ements , and Specifications In addition, in m inute amounts of mo isture , mon oammonium pho sphate can become highly corr osive and corr odes most metals .
Pow e r G u i d e l i n e s , Requir em ents , and Specifications Site Electrical Wiring Guidelines When planning the electrical wiring at your site , co nsider the fact ors discussed in the follo wing sections . Distance Limitations f or Signaling Improperly inst alled wires can emit radi o interference .
Pow e r G u i d e l in e s , Requir ements , and Specifications T able 9: Component Pow er Requirements Component Pow er Requirement (W a tts) Pow er Requirement (Amps) Base system (all components ex .
Pow e r G u i d e l i n e s , Requir em ents , and Specifications If you plan to operate a maximally configur ed DC-pow ered r outer , we rec om me nd t ha t you pr ovision at least 13.5 A @ 48 VDC and use a facility circuit br eaker rated for 20 A minimum.
Pow e r G u i d e l in e s , Requir ements , and Specifications Figure 18: AC Plug T ypes Italy Europe UK A ustralia 1013 Japan Nor th Amer ica F or infor mation about the A C pow er supply , including elec trical specific ations and a descriptio n of components , see “A C P ower Sup ply” on page 17.
Pow e r G u i d e l i n e s , Requir em ents , and Specifications F or field-wiring connections, use copper conduct ors only . F or other electrical safety information, see “Electrical Safety Guidelines and W arnings” on page 135. Figure 19 sho ws how to attach the gro unding and pow er cables .
Network Cable Spe cifications and Guidelines connecting the DC pow er and grounding cables during initial inst allation, see “Connect P ower t o a DC-P ower ed Router” on page 66. F or instructions on replacing the cables on an operating r ou ter , see “Disconnect and Connect DC P ower” on page 1 08.
Network Cable Spe cifications and Guidelines Compared with multimode fiber , single-mo de fiber has high er bandwidth and can carry signals for longer distances .
Network Cable Spe cifications and Guidelines When you calculate the power budget, y ou use a wor st-case analy sis to pr ovide a mar gin of error , ev en though all the parts of an actual system do not oper ate at the w orst-case le vels .
Network Cable Spe cifications and Guidelines The follo wing ex ample uses the estimated v alues in T able 12 to calculate link loss ( LL )f o ra 2 km-long multimode link with a power budget ( P B )o f1 3d B : • Fiber attenuation f or 2 km @ 1.0 dB/km= 2 dB • Los s for f ive c onnector s @ 0.
Site Prepar ation Checklist the pow er to bring it within the allow able r ange; for short lengths of fiber , with fiber an d connecto r loss close t o z ero, an attenuator of 5 t o 1 0 dB should be s ufficient.
Site Prepar ation Checklist Item or T ask Per fo r me d By Date Notes Select the type of rack. Plan rack location, including requir ed space clearances . Secure r ack to floo r and buildi ng struct ure . A cquire cables and connect ors . Locate si tes for connection of sy stem grounding.
Site Prepar ation Checklist 54 M5 and M1 0 Internet Router s Hardw are Guide.
Chapter 6 Unpack the Router This chapter explains how t o unpack the router and v erify the parts recei ved. Before beginning, prepar e the inst allation site as described in “Prepare f or Router In.
Unpack the Router 2. P osition the carton so that the arro ws ar e pointing up. 3. Using a utility knife , cut through the sealing t ape on the t op seam of the cart on. Open the top flaps of the carton. 4. Remo ve the accessory box and packing material from the t op of the r outer .
Choose Front or Ce nter Mounting Component Quantity Front -mounting shelf 1 Mounting ears 2 PIC and PIC blank U pt o4o na nM 5r outer U pt o8o na nM 1 0r o u t e r Po w e r s u p p l y 2 Routing Engine 1 Choose F ront or Center Mounting Y ou can mount the router into either a center-mo unt rack, or into front-mount rack, four-post rack, or cabinet.
Choose Front or Ce nter Mounting 58 M5 and M1 0 Internet Router s Hardw are Guide.
Chapter 7 Install the Router Because the router w eighs between 57 lb (25.8 kg) and about 6 1 lb (27.6 kg) for the M5 r outer or 67 lb (29. 5 kg) for the M1 0 router , using a mechanical lift to install it is r ecommended.
Install t he Chass is int o the Rack • Place the rack in its p ermanent location, a llowing adequate clearance f or airflo w and maintenance , and secure it to the bui lding structure .
Chapter 8 Connect the Router and P erform Initial Configuration After installing the r outer into the r ack as desc ribed in “Initial Inst allation” on page 35, complete th e installation by connecting management and alarm de vices , PICs, and pow er cables .
Connect the Ro ute r to Management Devices Figure 21: Routing Engine Management Por ts R 1336 Red alar m LED Lamp test button Routing Engine por ts PIC online/offline buttons Y ellow alarm LED Link st.
Connect PIC Cable s Figure 22: Routing Engine Ethernet Cable Connector 1063 Connect to a Management Console or A uxiliary Device To u s e a s y s tem console to configure and manage the R outing Engine , connect it to the CONSOLE port on the craft interface .
Connect PIC Cable s 2. If the PIC ca ble connect or port is co v ere d by a rubb er safety plug, r emove the plu g. Do not look dir ectly int o the ends of fiber-optic cables or i nto the transceiv ers on the interf ace faceplate .
Pr ovi de Powe r to t he Router Figure 24: Attach Cable to a PIC 1334 PIC PIC cable Provide P ower to the Router Connect th e router t o external po wer sour ces and pow er it on by perf orming the fo.
Pr ovide P ow er to t he R outer Connect P ower t o a DC-P o wer ed R outer Connect DC pow er t o the router by inserting po wer cables fr om external DC po wer sour ces into the q uick-connect terminals on the faceplate of each po wer supply . P ower and gr ounding cables are not supplied with the r outer .
Pr ovi de Powe r to t he Router 8. Insert the exposed end of each pow er cable s traight int o the appropriate quick-connect terminal: • Insert the positive (+) source cable into the r eturn terminal, which is labeled RTN . • Insert the negative (–) source cable int o the input terminal, which is labeled –48V .
Pr ovide P ow er to t he R outer 2. F or each power supply on an A C-power ed router , verify that the ends of the pow er cord ar e firmly plugged into the appliance inlet on the pow er supply faceplate and the external p ower sour ce recept acle .
Configur e the JUN OS In tern et Soft wa r e Configure the JUNOS Internet Software The router is s hipped with the JUNOS I nternet softw ar e preinst alled and ready to be configured when the router is po wer ed on.
Configur e the JUN OS Internet Software 7. Configure the IP addr ess an d prefix len gth for the router’s Ethernet interface . [edit] root@# set interfaces fxp0 unit 0 family inet address address/prefix-length 8. Configure t he IP address of a back up router , which is used only while the routing prot ocol is no t running.
Configur e the JUN OS In tern et Soft wa r e 1 1. Optionally , display the configur ation to v erify that it is correct. [edit] root@# show system { host-name host-name ; domain-name domain-name ; bac.
Configur e the JUN OS Internet Software 72 M5 and M1 0 Internet Router s Hardw are Guide.
Pa r t 3 Hard w are Maintenance, Replacement, and T roubleshooting Procedures • Maintain Har dwar e Components on page 75 • Replace Har d war e Components on page 8 1 • T roubleshoot Hardw are C.
74 M5 and M1 0 Internet Router s Hardw are Guide.
Chapter 9 Maintain Hardw are Components This chapter describes how to maint ain hardwar e components installed in the router . F or informatio n about returning a part to Juniper Networks for r epair or replacement, see “Return the R outer or Its Components” on page 163.
Maint ain P ack et F orwarding Engine Components F or further descript ion of the output fr om the command, see the JUNOS Intern et Softwar e Operational Mode Command R efer ence: Protocols , Class of Service , Chassis , and Management .
Maintain P ack et F orwar ding Engine Com ponents • Issue the CLI show chassis fpc pic-status command. The PIC slots in an FPC are numbered fr om 0 through 3 ,r i g h tt ol e f t : user@host> sho.
Maint ain the P ow e r Supplies T o clean the transceiver s , use an appropriate fiber-cleaning device , such as RIFOCS Fiber Optic A dap tor Cleaning W ands (part num ber 946).
Maintain the Rout ing Engine • V erify that the air flow in and out of cooling system components is not obstructed. Maintain the Routing Engine The Routing En gine installs int o a slot in the F o rwar ding Engine Board (FEB) at the rear of the c hassis , as sho wn in Figur e 3.
Maint ain the R out ing E ngine 80 M5 and M1 0 Internet Router s Hardw are Guide.
Chapter 10 Replace Hard ware Components Most of the router’s hardw are components a r e field-replaceable units (FR Us), which means that y ou can r emov e and replace them y ourself.
Rep la ce t he Fan T r ay T ool or par t Components Phillips (+) scre wdriv ers , numbers 1a n d 2 Fa n t r a y FEB PIC P ower supply (A C or DC) Rou tin g En gi ne Rubber safety cap Fiber-o ptic PIC or PIC cable Replace the F an T ray The fan tr ay inst alls int o the rear of the chassis , as shown in Figure 3.
Rep la ce t he Fan T r ay 4. Place one hand un der the fan tra y to support it and slide the tray completely out of the chassis after the fans stop spinning. Figure 26: Remove the F an T ray 1325 Install the F an T ray T o install the f an tra y , follo w this procedur e (see Figure 27): 1.
Replace P acket F o rwar ding Engine Components Figure 27: Install the F an T ray 1326 Replace Packet F orwarding Engine Components Fo r i n s t ructions on replacing P acket F orwardin g Engine compo.
Replace P acket F o rwar ding Engine Components Re m ov e t h e F E B To r e m o v e t h e F EB , fol low t hi s pro ce du re (s ee F ig ure 2 8): 1. Place an electrost atic bag or antistatic mat on a flat, stable surf ace .
Replace P acket F o rwar ding Engine Components Figure 28: Remove the FEB 1308 Install the FEB T oi n s t a l lt h eF E B ,f o l l o wt h i sp r o c e d u r e( s e eF i g u r e2 9 ) : 1. V erify that the power switch on both power supply faceplates is in the OFF ( O )p o s i t i o n .
Replace P acket F o rwar ding Engine Components Figure 29: Install the FEB 1309 Re p l a c e a P IC Up to f our regular PICs inst all into an M5 router and up t o eight regular PICs inst all into an M1 0 rout er , as shown in Figur e 1 and Figure 2. Quad-wide PICs occup y all f our slots in an FP C ro w .
Replace P acket F o rwar ding Engine Components 4. Use one of the f ollowing methods t o tak e the PIC offline: • Press and hold the PIC offline button until its failur e indicator LED lights , wh ich usually takes about 5 seconds .
Replace P acket F o rwar ding Engine Components 7. Unseat the PIC from the chassis: • F or a regular PIC, pull the right e nd of the PIC ejector lev e r aw ay fr om the PIC fac epl at e . • F or a quad-wide PIC, pull the end of each ejector lev er away fr om the PIC faceplate , to war d the outer edges of the PIC.
Replace P acket F o rwar ding Engine Components 5. Slide the PIC into the slot: • F or a regular PIC, slide the PIC into the slot u ntil about 0.5 in. (1 cm) of the PI C remains outside the slot and y ou feel some resist ance . Release the ejector lev er and gently pus h the PIC faceplate until you hear a click as the PIC contacts the midplane .
Replace P acket F o rwar ding Engine Components 8. Arrange each cable in the cable man agement system t o pre vent the cable from dislodging or developing str ess points . Secure the cable so that it is not supporting its own weight as it hangs t o the floor .
Replace P acket F o rwar ding Engine Components Figure 31: Install a PIC 1311 Re p l a c e P I C C a b l e s Remo ving an d installing PIC cables does not affect r outer function, ex cept that a PIC does not r eceive or transmit dat a while its ca ble is disconnected.
Replace P acket F o rwar ding Engine Components 3. Unplug the cabl e fr om the cable connect or port. If the PIC uses fiber-optic cabl e , immediately cov er each transceiv er and the end of each cable with a rubber safety cap. Do not look di r ectly into the ends of fiber-optic cables or into the transceiv ers on the interf ace faceplate .
Replace P acket F o rwar ding Engine Components 3. Insert the cab le connect or into the cable connector port on the PIC facep late . 4. Arrange the cable in the cable management system to pre vent it fr om dislodging or dev eloping stress points . Secure the cable so that it is no t supporting its own weight as it hangs to the floor .
Replace P acket F o rwar ding Engine Components Figure 32: Connect F iber-Optic Cable to a PIC 1334 PIC PIC cable Re p l a c e a n S F P Small for m fact or pluggables (SFPs) are optical tr ansceiver s that can be remov ed from a PIC (for mor e information, see “Phy sical Interf ace Cards (PICs)” on page 9).
Replace P acket F o rwar ding Engine Components 2. A ttach an electr ostatic dischar ge (ESD) grounding strap t o your bar e wrist and connect the strap t o one of the ESD points on the chas sis. F o r more information about ESD, see “Pre v ent Elec trost atic Discharge Damage” on page 134.
Replace P acket F o rwar ding Engine Components 2. V erify that a rubber safety cap cover s the SFP transceiv er , installing one if necessary . 3. Orient the SFP over the port in the PI C suc h that .
Rep la ce Power S ys tem Components 6. Arrange the cable in the cable management sy stem to pr event the cable from dislodging or dev eloping stress point s . Secure the cabl e so that it is not supporti ng its o wn weight as it hangs t o t he floor .
Rep la ce Power Sys tem Components T o replace an A C power supply , perform the f ollowing pr ocedur es: • Remo ve an A C P ower Supply on page 99 • Install an A C P o w er Supply on page 1 00 R emo ve an A C Po we r Supply The A C power supplies ar e located at the bottom r ear of the chassis , as shown in Figur e 3.
Rep la ce Power S ys tem Components Figure 34: Remove an AC Pow er Supply 1317 I n s t a l la nA CP o w e rS u p p l y T o install an A C power supply , follo w this pr ocedure (see Fi gure 35): 1. V erify that the sw itch on the pow er supply faceplate is in the OFF ( O )p o s i t i o n .
Rep la ce Power Sys tem Components 8. Press the pow er switch on the faceplate t o the ON ( | ) position.V erify that the blue OUTPUT OK LED eventually lights steadily . After pow ering off a pow er supply , wait at least 60 seconds befor e turning it back on.
Rep la ce Power S ys tem Components Disconnect A C Po wer from the R outer T o disconnect A C power f ro m the rou ter , follo w this pr ocedure: 1. On the console or other management device c onnecte.
Rep la ce Power Sys tem Components 5. Press the po wer swit ch on the faceplate of one power supply to the ON ( | ) position. V erify that the blue OUTPUT OK LED eventually lights steadi ly . After pow ering off a pow er supply , wait at least 60 seconds befor e turning it back on.
Rep la ce Power S ys tem Components 4. Unplug the p ow er cor d fr om the appl iance inlet on t he f aceplate and f rom th e pow er source recept acle . 5. Insert the appliance coupler end of the replacement power cor d into the appliance inlet on the po wer supply faceplate and insert the plug int o an A C power source rece ptacl e .
Rep la ce Power Sys tem Components 1. A ttach an electr ostatic dischar ge (ESD) grounding strap t o your bar e wrist and connect the strap t o one of the ESD points on the chas sis. F o r more information about ESD, see “Pre v ent Elec trost atic Discharge Damage” on page 134.
Rep la ce Power S ys tem Components Figure 36: Remove a DC Power Supply 1321 Install a DC P ower Supply T o install a DC pow er supply , follo w this procedur e (see Figure 37 and Figur e 3 8): 1.
Rep la ce Power Sys tem Components 9. Thread the po wer cables thr ough the hook located on the faceplate t o the right of the quick-connect terminals . 1 0. Insert the exposed end of each pow er cable s traight into the appr opriate q uick-connect terminal: • Insert the po sitive (+) source cable into the r eturn terminal, which is labeled RTN .
Rep la ce Power S ys tem Components Figure 37: Install a DC Pow er Supply 1322 Figure 38: Connect Pow er Cables to a DC P ow er Supply 1331 RT N -48V Grounding point Grounding lug T o ground Disconnec.
Rep la ce Power Sys tem Components pe rfo rm th e fol low in g pro ce du res. Al so fo ll ow th ese pro ce du res w he n rep la ci ng t he p ower cables , grounding cable , or both: • Disconnect DC .
Rep la ce Power S ys tem Components Connect DC Po we r to the R outer Connect DC pow er t o the router by inserting po wer cables fr om external DC po wer sour ces into the q uick-connect terminals on the faceplate of each po wer supply . P ower and gr ounding cables are not supplied with the r outer .
Rep la ce Power Sys tem Components 8. Using a 3-mm flat-blade scre wdriver , turn the scre w on each quick-connect terminal clockwise to tighten the termina l connector ar ound the cable .
Rep la ce Ro ut in g E ngine Components Figure 39: Connect Pow er Cables to a DC P ow er Supply 1331 RT N -48V Grounding point Grounding lug T o ground Replace R outing Engine Components F or instruct.
Rep la ce Ro ut in g E ngine Components On some router s , the accessory box includes a plastic PC car d storage case that y ou can affix to the r outer chassis f or easy access to the PC car d. show s the recommended inst allation location for t he case and how to ins ert the PC card into the case .
Rep la ce Ro ut in g E ngine Components 2. When the PC card pops partially out of the slot, grasp the car d and pull it straight o u to ft h es l o t . Figure 40: Remove the PC Card 1332 Eject button Insert the PC Card T oi n s e r tt h eP Cc a r d ,f o l l o wt h i sp r o c e d u r e( s e eF i g u r e4 1 ) : 1.
Rep la ce Ro ut in g E ngine Components Figure 41: Inser t the PC Card 1333 Re p l a c e t h e Ro u t i n g E n g i n e The Routi ng Engine installs int o a slot in the FEB at the rear of the chassis , as shown in Figure 3. The Routi ng Engine weighs appr o xi mately 3 lb (1.
Rep la ce Ro ut in g E ngine Components 4. A ttach an electr ostatic dischar ge (ESD) grounding strap t o your bar e wrist and connect the strap t o one of the ESD points on the chas sis. F o r more information about ESD, see “Pre v ent Elec trost atic Discharge Damage” on page 134.
Rep la ce Ro ut in g E ngine Components 2. A ttach an electr ostatic dischar ge (ESD) grounding strap t o your bar e wrist and connect the strap t o one of the ESD points on the chas sis. F o r more information about ESD, see “Pre v ent Elec trost atic Discharge Damage” on page 134.
Rep la ce Ro ut in g E ngine Components Figure 43: Install the Routing Engine 1313 Extractor clip R eplace Connectors t o R outing Engine Interface P orts The ports o n the craft interf ace connect the Ro uting Engine to external management d e v i c e s( s e eF i g u r e4 4 ) .
Rep la ce Ro ut in g E ngine Components such cable is pro vided with the router . F or cable specifications, see “C able Specifications for Routing Engine Management Interfaces” on page 52. F ollow this procedur e: 1. If a cable is already inst alled in the MGMT port for the rele vant R outing Engine , perform the f ollowing steps: a.
Rep la ce Ro ut in g E ngine Components 1. If a cable is already installed in the CONSOLE or AUX/MODEM port, perform the follo wing steps: a. T urn o ff the pow er to the console or auxiliary device . b . U n s c r e wt h es c r e w st h a ts e c u r et h ec a b l ec o n n e c t o rt ot h ep o r t ,u s i n ga2 .
Chapter 11 T roubleshoot Hardw a re Components This chapter describes how to tr oubleshoot problems with hardw are components installed in the router .
Overvie w of T roub leshooting R esour ces F or information about using the C LI to tr oubleshoot the JUNOS Internet software , see the appropriate JUNOS Internet softw are configur ation guide. LEDs The LEDs described in the follo wing sections indicate the b asic status of hardw are components.
Overvi ew of T roub leshooting Resour ces T able 17: Chassis Alarm Messages Component CLI Message Craft interface Craft interface not responding fan-name remo ved fan-name stopped spinning F ans T oo .
T roub leshoot P ac ket F orwarding Engine Com ponents Juniper Networks T echnical Assistance Center If you need ass istance d uring tr oubleshooting, y ou can conta ct the Juniper Netw orks T echnical Assistance Center (JT A C) by e-mail or telephone .
T roubleshoot the Pow e r S y s t e m T roubleshoot the FEB If the FEB fail s , the f orw arding and r outing func tions of the r outer halt immediatel y and do not resume until the FEB f ailure has been corr ected. To t r o u b l e s h o ot an FEB, follo w these guidelines: • Make sur e the FEB is properly seated in the midplane .
T roublesh oot the Pow e r S y s t e m L E Do nB o t hS u p p l i e sI sO f f If the LED is of f on both power supply f aceplates , either someone has swit ched off pow er to the router or the system temperatur e has ex c eeded the accept able maximum.
Pa r t 4 Appendixes 127.
128 M5 and M1 0 Internet R outers Hardw ar e Guide.
Appendix A Safety and Re gulator y Compliance Information T o install and use the router safely , follow pr o per safety procedur es . This chapter discusses the follo wing safety and r egulatory comp.
Definition of Saf ety W arning L e ve ls This symbol means danger . Y ou are in a situation that could cause bodily injury . Before you w ork on any equipment, b e aw are of the haz ards involv ed with electrical circuitry and be familiar with st andard pr actices for pre venting accidents .
Safety Guid eline sa n dW a r n i n g s Safety Guidelines and W a rnings This section l ists safety guidelines and warnings for inst alling, operating, and maintaining the rout er: • General Safety .
Safety Guideline sa n dW a r n i n g s • A void spilling liquid onto the router chassis or onto any router component. Such an action could cause electric al shock or damage the router . • A void t ouching uninsulated electric al wires or terminals that have not been disconnected from their power source .
Safety Guid eline sa n dW a r n i n g s R estric ted A ccess Area W arning The router is intended f or installation in r estricted access areas . A restricted access ar ea is an area t o which access .
Safety Guideline sa n dW a r n i n g s ¡Atención! Es ta unidad ha sido diseñada para instalar se en áreas de acceso restringido. Ár ea de acceso restringido significa un ár ea a la que solamente.
Safety Guid eline sa n dW a r n i n g s Figure 47: Place a Component into an Electrostatic Bag CA UTION ELECTROST A TIC SENSITIVE DEVICES DO NOT OPEN OR HANDLE EXCEPT A T A ST A TIC-FREE WORKST A TION.
Safety Guideline sa n dW a r n i n g s General Electrical Safety G uidelines • Instal l the ro uter in compliance with the follo wing local, national, or international electrical codes: • United States —National Fir e P rotection Association (NFP A 70), United St ates National Electrical Code .
Safety Guid eline sa n dW a r n i n g s • Green and y ello w—Earth • Blue—Neutral • Bro wn—Live • When a router is equ ipped with two A C power suppl ies , both power co rds (one f or each pow er supply) must be unplugged to completely disconnect po wer to the r outer .
Safety Guideline sa n dW a r n i n g s • Because the router is a p ositive gr ound sys tem, you must connect the positive lead t o the terminal labeled RTN , the negative lead to the terminal labeled –48V , and the earth ground t o the c hassis grounding points .
Safety Guid eline sa n dW a r n i n g s Attention A vant de pratiquer l’une quelconque des procédur es ci-dessous, vérifier que le cir cuit en courant continu n’ est plus sous t ension.
Safety Guideline sa n dW a r n i n g s W h e ni n s t a l l i n gt h er o u t e r , t h eg r o u n dc o n n e c t i o nm u s ta l w a y sb em a d e first a nd disconnected last. W aar schuwing Bij de installatie v an het toestel moet de aar dverbinding altijd het eerste wor den gemaakt en het laatste worden losgemaakt.
Safety Guid eline sa n dW a r n i n g s W ar nung V erdr ahten Sie die Gleichstrom-V ersor gung mit den passenden Ansätzen am V erdrahtung Ende . W enn man Energie anschließt, wir d die korr ekte V erdrahtung. Reihenf olge gerieben, um, +R TN zu +R TN, dann -48 V bis -48 V zu reiben.
Safety Guideline sa n dW a r n i n g s Va r o i t u s Jos säikeellinen johdin on tarpeen, käytä hyväksyttyä johdinliitäntää, esimerkiksi suljett ua silmukkaa t ai kourumaista liitäntää, jossa on ylöspäin käännetyt kiinnityskor v at.
Safety Guid eline sa n dW a r n i n g s Va r o i t u s Tämä laitteisto on tarkoitettu maadoitett av aksi. V armista, että isäntälaite on yhdistetty maahan normaalikäytön aikana. Attention Cet équipement doit être r elié à la terr e . S’assurer que l’appareil hôte est relié à la terre lors de l’utilisation normale .
Safety Guideline sa n dW a r n i n g s Multiple P ow er Supplies Disconnection W arning The router has mor e than one power su pply connection. All connections must be r emov ed completely to r emove po wer fr om the unit completely .
Safety Guid eline sa n dW a r n i n g s Va r o i t u s Kytk e irti vaiht ovirt alaitteiden virt ajohto ja k atkaise tasa virtalaitteiden virt a suojakytkimellä, ennen kuin teet mitään asennuspohjalle tai työsk entelet virtalähteiden läheisyydessä.
Safety Guideline sa n dW a r n i n g s A vver tenza Il dispositivo è st at o progett at o per l’uso con sistemi di alimentazione TN, IT . Advarsel Utstyret er utfomet til bruk med TN-, IT -strømsystemer . Av i s o O dispositivo foi criado para operar com sistemas de corr ente TN, IT .
Safety Guid eline sa n dW a r n i n g s Installation Instructions W a rning Read the installation instructions before y ou connect the router to a pow er source . W aar schuwing Raadpleeg de inst allatie-aanwijzingen v oordat u het systeem met de v oedin g ve rbindt.
Safety Guideline sa n dW a r n i n g s T o prev ent bodily injury when mounting or servicing the router in a ra ck, take t he fol low ing precautions t o ensure that the system remains st able . The follo wing directiv es help maintain y our safety: • The router must be installed int o a rack that is secured to the building structure .
Safety Guid eline sa n dW a r n i n g s Attention P our éviter toute blessure corpor elle pendant les opér ations de montage ou de réparation de cette u nité en casier , il convient de prendr e des précautions spéciales afin de maintenir la stabilité du système .
Safety Guideline sa n dW a r n i n g s Advarsel Unngå fysiske sk ader under montering eller repar asjonsarbeid på denne enheten når den befinner seg i et kabinett.
Safety Guid eline sa n dW a r n i n g s ¡Atención! Pa ra evit ar lesiones durante el mont aje de este equipo sobre un bastidor , o posteriormente dur ante s u mantenimiento, se debe poner mucho cuidado en que el sistema quede bien est able .
Safety Guideline sa n dW a r n i n g s A vver tenza Non usare una rampa con pendenza superior e a 1 0 gradi. Advarsel Bruk aldri en rampe som heller m er enn 1 0 grader .
Safety Guid eline sa n dW a r n i n g s C l a s s1L a s e rP r o d u c tW a r n i n g Class 1 laser product . W aar schuwing Klasse-1 laser produkt. Va r o i t u s Luokan 1 lasertuote . Attention Produit laser de classe I. W ar nung Laserpr odukt der Klasse 1.
Safety Guideline sa n dW a r n i n g s Laser Beam W arning Do not star e int o the laser beam or view it directly with optical instruments . W aar schuwing Niet in de str aal staren of hem r echtstreeks bekijken met optische instrumenten. Va r o i t u s Älä katso säteeseen äläkä tarkastele sitä suor aan optisen laitteen avulla.
Safety Guid eline sa n dW a r n i n g s W ar nung A us der P ort-Öffnung können unsichtbar e Strahlen emittier en, wenn k ein Glasfaserk abel angeschlossen ist.
Safety Guideline sa n dW a r n i n g s Va r o i t u s Räjähdyksen vaara, jos akk u on vaihdettu väärään akkuun. Käytä vaiht amiseen ainoastaan saman- t ai vast aavantyyppistä akk ua, joka on valmist ajan suosittelema. Hävitä käytetyt akut valmist ajan ohjeiden mukaan.
Safety Guid eline sa n dW a r n i n g s Attention A vant d’accéder à cet équipement connecté aux lignes électriques , ôter tout bijou (anneaux, colliers et montres compris).
Safety Guideline sa n dW a r n i n g s Attention Ne pas tra v ailler sur le système ni brancher ou débr ancher les câbles pendant un orage . W ar nung Arbeiten Sie nicht am System und schließen Sie k eine Kabel an bzw . trennen Sie keine ab , wenn es gewittert.
Safety Guid eline sa n dW a r n i n g s Advarsel Unngå over oppheting av e ventuelle rutere i Juniper Networks router Disse sk al ikke brukes på steder der den anbefalte maksimale omgivels estemperatur en ov er stiger 40 ο C( 1 0 4 ο F).
Ag e n c y A p p r o v a l s Agency Approvals The router com plies with the follo wing standar ds: • Safety • C AN/CS A-22.2 No. 6 0950-00/UL 1950 Third Edition, Safety of Information T echnology .
Compliance State me nts f or EMC Re quir ement s • ET SI • ET S-30038 6-2 T elecommunication Network Equipment. Electromagnetic Compatibility Requir ements Compliance Statements for EMC Requirements Canada This Class A di git al appar atus complies with Canadian ICES-003.
Compliance State ments f or EM C Requir ements United States The router has been tested and found to comply with the limits f or a Class A digital de vice , pursuant t o P art 15 of the FCC Rules . These limits are designed t o pro vide reasonable protection against harmful interfer ence when the equipment is operated in a commercial environment.
Appendix B Return the Ro uter or Its C omponents This chapter describes how to r eturn the router or individual components to Juniper Networks f or repair or r eplacement: • T ools and P arts Requi .
Loc a te C o mp o ne n t Serial Number s 2. Obtain a R eturn Materials A uthorizatio n (RMA) number from the Juniper N etworks T echnical Assistance Center (JT A C). Y ou can send e-mail o r telephone as specified in “How t o Reques t Sup port” on page xix.
Loc ate C om p one nt Serial Numbers Figure 48: Serial Number ID Label 1600 The fol lowing sec tions describe the t ag location on eac h type of component: • FEB Serial Number ID Label on page 165 .
Loc a te C o mp o ne n t Serial Number s Figure 50: PIC Serial Number ID Label 1623 RX TX ST A TUS Serial number ID label AA1234 P o w e rS u p p l yS e r i a lN u m b e rI DL a b e l The serial number ID label on a po wer supply i s located on the pow er supply faceplate , as s h o w ni nF i g u r e5 1a n dF i g u r e5 2 .
Loc ate C om p one nt Serial Numbers Figure 52: DC Power Supply Serial Number ID Label 1625 SP04371A S/N : LK33319 REV : 03 REV : A 102600 P/N : 740-002498 Serial number ID label Ro u t i n g E ngine Serial Number ID Lab el The location of the serial number ID label depends on the type o f Routing Engine (see Figure 53 and Figur e 54).
P ack the Router f o r Shipment Figure 54: Routing Engine 600 Serial Number ID Label 1576 Serial number ID label *1 2 3 4 5 6 7 8 9 1 0 1 2 * Pa c k t he R o uter for Shipment T o pack the router for shipment, follow this procedure: 1. Retriev e the shipping box and packing ma terials in which the router was originally shipped.
Pa c k C o m p o n e n t s f or Sh ipment 6. Remo ve the chassis fr om the rack: • If you are using a mechanical lift, place the lift platform under the chassis , un sc rew an d re move t he m ou nt in g s crews f rom t he ra ck , an d m ove th e ch as si s to the shippin gb o x .
Pa c k C o m p o n e n t s f or Sh ipment 17 0 M 5 and M1 0 Intern et Router s Hardwar e Guide.
Appendix C Cable Connec tor Pinouts This chapter describe s the pinouts for the f ollowing cable connectors: • RJ-45 Connector Pinouts f or the R outing Engine MGMT P ort on page 17 1 • DB-9 Conne.
RJ-48 Cable Pinou ts f or E1 and T1 PICs to a lapt op, modem, or other auxiliary unit, and the CONSOLE port connects it to a management console . The ports ar e configur ed as data terminal equipment (D TE). F or more information, see “Routing Engine Interf ace P orts and Status Indicators” on page 15.
RJ-48 Cable Pinou ts f or E1 and T1 PICs RJ-48 Pin (on T1/E1 PIC) (Data numberi ng form) RJ-48 Pin (Data num bering form) Signal 33 Shield/Return/Ground 66 Shield/R etur n/Ground 7 No connect No conne.
RJ-48 Cable Pinou ts f or E1 and T1 PICs T able 23: RJ-48 Connector to DB-15 Connector (Straight) Pinout RJ-48 Pin (on T 1/E1 PIC) (Data numberi ng form) DB-15 Pin (Data nu mberi ng form) Signal 11 1 .
RJ-2 1 Cable Pinou t sf o rF a s tE t h e r n e t1 2 - P o r tP I C RJ-48 Pin (on T1/E1 PIC) (Data numberi ng form) DB-15 Pin (Data num bering form) Signal 14 No connect No connec t 15 No connect No c.
RJ-2 1 Cable Pinou ts f or F ast Ethernet 12-P ort PIC T able 25: RJ-21 Pin Assignments Ethernet Por t Numbers RJ-21 Pin Assignment TX - TX + RX - RX + 02 2 7 1 2 6 1 4 29 3 28 26 3 1 5 3 0 38 3 3 7 3.
Pa r t 5 Index 177.
178 M5 and M1 0 Internet R outers Hardw ar e Guide.
Index Index A AC p o w e r c o r d connection instructions d u r i n g i n i t i a l i n s t a l l a t i o n .. .............. ....... 6 5 for maintenance or r eplacement . . . . . . . . . . . . 1 02 d i s c o n n e c t i o n i n s t r u c t i o n s .
Index carton See shipping carton center -mount r ack See rack chassis a i r f l o w p a t h t h r o u g h....... ................ .......... 1 9 alarm messages See alarm, messages d e s c r i p t i o n ... .............. ................ ........... 5 g r o u n d i n g p o i n t s .
Index electrost atic b a g , u s i n g t o s t o r e c o m p o n e n t s ...... ............. 1 3 4 discharge See ESD EMC (EMI) c o m p l i a n c e w i t h r e q u i r e m e n t s ...... ............. 1 6 1 s u p p r e s s i o n .. .............. ....
Index F E B ...... ............. ................. ............. .. 8 6 P C c a r d....... ................ .............. ......... 1 1 4 P I C .... ............. ................. ............. ..... 8 9 R o u t i n g E n g i n e ............ ......
Index P I C .... ............. ................. ............. ..... 1 6 P P acket F orwarding Engine a r c h i t e c t u r a l c o m p o n e n t s ......... ................ .. 2 9 A S I C s , d i a g r a m o f ....... .............. ............... 2 9 d a t a f l o w t h r o u g h .
Index R J - 4 5 c a b l e c o n n e c t o r p i n o u t s . ............. ........... 1 7 1 R J - 4 8 c a b l e p i n o u t s .......... .............. ............. 1 7 2 R M A n u m b e r . ............. .............. ................ 1 6 3 rou ti ng p o l i c y.
Index s u r g e p r o t e c t i o n ........... ................. ............. .. 4 3 system a r c h i t e c t u r e .. .............. ................ .......... 2 9 d e s c r i p t i o n ... .............. ................ ........... 3 T T 1 P I C , p i n o u t s f o r R J - 4 8 c a b l e .
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 Juniper M10 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 Juniper M10 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Juniper M10 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Juniper M10 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Juniper M10, 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 Juniper M10.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Juniper M10. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Juniper M10 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.
