Juniper Networks M160 J240, J241, J244, J242, J243

M160 Internet Router Hardware Guide

11. Reinstall the rear lower impeller by sliding it back into the chassis and

tightening the thumbscrew at each corner of the impel ler cover. Forcomp lete

instructions,see “Installing the Rear Lower Impeller Assembly” on page 155.

12. Order new fuses from an electrical supply house to replace the spares in the

J244 group. The Cooper Bussman product number for each fuse is GMT-X,

where Xis the amperage rating. For example, product number GMT-15 is

a 15-A fuse, required for an FPC.

Figure 106: Fuse Locations in the Fuse Box

J240

A

B

C

D

J241

ABCD

J244

ABCD

J242

ABCD

J243

ABCD

MCS0 12A

MCS1 12A

SFM0 10A

SFM1 10A

SFM2 10A

FPC4 15A

FPC2 15A

FPC1 15A

FPC0 15A

PCG0

1A

15A

SFM3 10A

SPARE 1A

SPARE 10A

SPARE 12A

SPARE 15A

FPC7 15A

FPC6 15A

FPC5 15A

1238

1A

PCG1

FPC3

Table 25: Fuse Specificati ons

Indicator Bulb

Color Component Fuse Rating Quantity L ocations

Red and blue FPC 15 A 9 J240A, B, and C

J241B and D

J242 A

J243 C and D

J244 D (spare)

Yello w and gr een MCS 12A 3 J242C

J243 A

J244 C (spare)

Red and white SFM 10 A 5 J241 A

J242 B and D

J243 B

J244 B (spare)

Gray PCG 1A 3 J240D

J241 C

J244 A (spare)

206 Replacing Power System Components

Contents

Main M160 Internet Router Hardware Guide ii iii iv Table of Contents Part 1 Product Overview Part 2 Initial Installation Page Part 3 Hardware Maintenance, Replacement, and Troubleshooting Procedures Page Part 4 Appendixes Part 5 Index Page List of Figures xiv Page Page List of Tables Page About This Guide Objectives Audience Documentation Conventions Table 1: Notice Icons Icon Meaning Description Table2 defines the text and sy ntaxcon ventions used in this guide. Table 2: Text and Syntax Conventions Convention Description Examples xx Convention Description Examples List of Technical Publications Table 3: Juniper Networks Technical Docum entation Book Description Book Description xxii Documentation Feedback Requesting Support Page Page Page Chapter 1 System Overview System Description Field-Replaceable Units (FRUs) System Redundancy Safety Requirements, Warnings, and Guidelines Page Chapter 2 Hardware Component Overview Chassis Figure 1: Front of Chassis 8 Figure 2: Rear of Chassis with Component Cover in Place Page Packet Forwarding Engine Midplane Physical Interface Cards (PICs) PIC Components Flexible PIC Concentrators (FPCs) Page FPC Components FPC Types Packet Forwarding Engine Clock Generators (PCGs) PCG Components Switching and Forwarding Module (SFM) SFM Components Page Host Module Routing Engine Routing Engine Components Miscellaneous Control Subsystem (MCS) MCS Components Craft Interface Alarm LEDs and Alarm Cutoff/Lamp Test Button LCD and Navigation Buttons LCD Idle Mode LCD Alarm Mode Host Module LEDs FPC LEDs and Offline Button Connector Interface Panel (CIP) Hardware Component Overview Figure 14: Connector Interface Panel Connector Interface Panel (CIP) 33 Routing Engine Management Ports BITS Input Ports Alarm Relay Contacts Power System Power Supply Figure 17: Original Power Supply Figure 18: Enhanced Power Supply Table 12: States for Power Supply LEDs Label Color State Description Circuit Breaker Box Fuses Cooling System Cooling System Components Airflow through the Chassis Cable Management System Page Chapter 3 JUNOS Internet Software Overview Routing Engine Software Components Routing Protocol Process IPv4 Routing Protocols Page IPv6 Routing Protocols Routing and Forwarding Tables Routing Policy VPNs Interface Process Chassis Process SNMP and MIB II Processes Management Process Routing Engine Kernel Tools for Accessing and Configuring the Software Tools for Monitoring the Software Software Upgrades Chapter 4 System Architecture Overview Packet Forwarding Engine Architecture Data Flow through the Packet Forwarding Engine Routing Engine Architecture Routing Engine Functions Page Page Page Page Chapter 5 Preparing for Router Installation Rack Requirements Rack Size and Strength Spacing of Mounting Holes Connection to Building Structure Clearance Requirements for Airflow and Hardware Maintenance Routing Node Environmental Specifications Fire Safety Requirements Fire Suppression Fire Suppression Equipment Power Guidelines, Requirements, and Specifications Site Electrical Wiring Guidelines Distance Limitations for Signaling Radio Frequency Interference Electromagnetic Compatibility Router Power Requirements Page Chassis Grounding Power, Connection, and Cable Specifications Page Page Network Cable Specifications and Guidelines Fiber Optic and Network Cable Specifications Signal Loss in Multimode and Single-Mode Fiber-Optic Cable Attenuation and Dispersion in Fiber-Optic Cable Calculating Power Budget for Fiber-Optic Cable Calculating Power Margin for Fiber-Optic Cable Attenuating to Prevent Saturation at SONET/SDH PICs Routing Engine Interface Cable and Wire Specifications Table 19: Cable and Wire Specifications for Routing Engine Management and Alarm Interfaces Port Cable Specification Cable/Wire Supplied Site Preparation Checklist Table 20: Site Preparat ion Checklist Item or Task Performed By Date Notes Page Chapter 6 Unpacking the Router Unpacking the Router Page Figure 31: Unpacking the Router Table 21: Generic Inventory of Router Components Installed in Chassis Component Quantity Page Chapter 7 Installing the Router Using a Mechanical Lift Installing the Chassis Using a Mechanical Lift Page Chapter 8 Installing the Router without a Mechanical Lift Removing Components from the Chassis Page Removing the Power Supplies Removing the Rear Component Cover Removing the SFMs Removing the MCSs Removing the PCGs Removing the Routing Engines Removing the Rear Upper Impeller Assembly Removing the Rear Lower Impeller Assembly Removing the Fan Tray Removing the FPCs Page Removing the Front Impeller Assembly Installing the Chassis into the Rack Page Reinstalling Components into the Chassis Reinstalling the Front Impeller Assembly Reinstalling the FPCs Reinstalling the Fan Tray Reinstalling the Rear Lower Impeller Assembly Reinstalling the Rear Upper Impeller Assembly Reinstalling the Routing Engines Reinstalling the PCGs Reinstalling the MCSs Reinstalling the SFMs Reinstalling the Rear Component Cover Reinstalling the Power Supplies Page Chapter 9 Connecting the Router and Performing Initial Configuration Connecting the Router to Management and Alarm Devices Connecting the Router and Performing Initial Configuration Figure 56: Routing Engine Management Ports and Alarm Relay Contacts Connecting the Router to Management and Alarm Devices 113 Connecting to a Network for Out-of-Band Management Connecting to a Management Console or Auxiliary Device Connecting to an External Alarm-Reporting Device Connecting PIC Cables Page Providing Power to the Router Connecting Power to the Router Page Powering On the Router Page Configuring the JUNOS Internet Software Page Page Page Page Page Chapter 10 Maintaining Hardware Components Routine Maintenance Procedures Maintaining Cooling System Components Maintaining the Air Filter Removing the Air Filter Cleaning the Air Filter Installing the Air Filter Maintaining the Fan Tray and Impellers Maintaining Host Module Components Maintaining Packet Forwarding Engine Components Maintaining FPCs Maintaining PICs and PIC Cables Maintaining the PCGs Maintaining SFMs Maintaining Power Supplies Page Chapter 11 Replacing Hardware Components Table 24: Tools and Parts Required Tool or part Components 140 Replacing the CIP and Routing Engine Interface Port Cables Removing the CIP Page Installing the CIP Page Replacing Hardware Components Replacing Connections to Routing Engine Interface Ports Replacing the CIP and Routing Engine Interface Port Cables 145 TheportsontheCIPconnecttheRoutingEnginetoexternalmanagementdevices (see Figure 66). Figure 66: Routing Engine Interface Por ts and Alarm Relay Contacts Replacing the Management Ethernet Cable Replacing the Console or Auxiliary Cable Replace Alarm Relay Wires Replacing Cooling System Components Replacing the Fan Tray Removing the Fan Tray Installing the Fan Tray Replacing the Front Impeller Assembly Removing the Front Impeller Assembly Removing the Craft Interface from the Front Impeller Assembly Installing the Craft Interface on the Front Impeller Assembly Installing the Front Impeller Assembly Replacing the Rear Lower ImpellerAssembly Removing the Rear Lower Impeller Assembly Installing the Rear Lower Impeller Assembly Replacing the Rear Upper Impeller Assembly Removing the Rear Upper Impeller Assembly Installing the Rear Upper Impeller Assembly Replacing Host Module Components Replacing an MCS Removing an MCS Page Installing an MCS Page Removing and Insert the PC Car d Removing the PC Card Insert the PC Card Replacing a Routing Engine Removing a Routing Engine Page Page Installing a Routing Engine Replacing Packet Forwarding Engine Components Replacing an FPC Removing an FPC Page Installing an FPC Page Page Page Replacing a PCG Removing a PCG Page Installing a PCG Replacing a PIC Removing a PIC Page Installing a PIC Page Page Page Replace PIC Cables Removing a PIC Cable Installing a PIC Cable Page Replacing an SFM Removing an SFM Installing an SFM Replace an SFP Removing an SFP Installing an SFP Page Replacing Power System Components Replacing the Circuit Breaker Box Removing the Circuit Breaker Box Page Installing the Circuit Breaker Box Page Replacing a Power Supply Removing a Power Supply Page Installing a Power Supply Disconnecting and Connecting Power Disconnecting Power from the Router Page Connecting Power to the Router Page Replacing a Fuse Page 206 J240 J241 J244 J242 J243 Troubleshooting Hardware Components Overview of Troubleshooting Resources Command-Line Interface LEDs LEDs on the Craft Interface LEDs on Hardware Components Chassis and Interface Alarm Messages Component LCD Message CLIMessage 210 Table 27: SONET/SDH Interface Alar mMe ssages LCD Message CLI Message Blown Fuse Indicators J240 J241 J244 J242 J243 Juniper Networks Technical Assistance Center Troubleshooting the Cooling System Troubleshooting Packet Forwarding Engine Components Trou ble sho oti ng FP Cs Trou ble sho oti ng PI Cs Troubleshooting the Power System AllLEDsonBothSuppliesAreOff All LEDs on One Supply Are Off or LED States Are not Correct Page Page Page Page Appendix A Safety and Regulatory Compliance Information Definition of Safety Warning Levels Safety Guidelines and Warnings Page General Safety Guidelines and Warnings Qualified Personnel Warning Restricted Access Area Warning Preventing Electrostatic Discharge Damage Electrical Safety Guidelines and Warnings Page General Electrical Safety Guidelines DC Power Electrical Safety Guidelines Copper Conductors Warning DC Power Disconnection Warning DC Power Grounding Requirements and Warning DC Power Wiring Sequence Warning DC Power Wiring Terminations Warning Grounded Equipment Warning In Case of Electrical Accident Midplane Energy Hazard Warning Multiple Power Supplies Disconnection Warning Power Disconnection Warning TN Power Warning Installation Safety Guidelines and Warnings Chassis Lifting Guidelines Installation Instructions Warning Rack-Mounting Requirements and Warnings Page Page Page Ramp Warning Laser and LED Safety Guidelines and Warnings General Laser Safety Guidelines Class 1 Laser Product Warning Class 1 LED Product Warning Laser Beam Warning Radiation From Open Port Apertures Warning Maintenance and Operational Safety Guidelines and Warnings Battery Handling Warning Jewelry Removal Warning Lightning Activity Warning Operating Temperature Warning Product Disposal Warning Agency Approvals Page Appendix B Contacting Customer Support and Returning Hardware Locating Component Serial Numbers Page Page M160 Internet Router Hardware Guide Figure 111: Craft Interface Serial Number ID Label Serial number ID label AA1234 DC Power Supply Serial Number ID Label The serial number ID label on a DC power supplyis located on the faceplate, as shown in Figure 112. 258 Figure 112: DC Power Supply Serial Number ID Label Serial number ID label Page PCG Serial Number ID Label PIC Serial Number ID Label Routing Engine Serial Number ID Label SFM Serial Number ID Label Contacting Customer Support InformationYouMightNeedtoSupplytoJTAC Return Procedure Page Packing the Routing Node for Shipment Page Packing Components for Shipment Page Appendix C Cable Connector Pinouts RJ-45 Connector Pinouts for the Routing Engine ETHERNET Port DB-9 Connector Pinouts for the Routing Engine AUXILIARY and CONSOLE Ports RJ-48 Cable Pinouts for E1 and T1 PICs Page 272 X.21 and V.35 Cable Pinouts for EIA-530 PIC DB-25 Pin Signal V.35 Pin Description Fast Ethernet 48-port Cable Pinouts 274 Page Ethernet Port Numbers RJ-21 Pin Assignment 276 Page Page Index Symbols A B C 280 D E F G H 282 I J K L M N O 284 P R S 286 T U V 288 W X