Table of Contents

About This Guide

Objectives

Audience

Documentation Conventions

List of Technical Publications

Documentation Feedback

Requesting Support

Product Overview

System Overview

System Description

Field-Replaceable Units (FRUs)

System Redundancy

Safety Requirements, Warnings, and Guidelines

Hardware Component Overview

Chassis

Packet Forwarding Engine

Midplane

Physical Interface Cards (PICs)

PIC Components

Flexible PIC Concentrators (FPCs)

FPC Components

FPC Types

Packet Forwarding Engine Clock Generators (PCGs)

PCG Components

Switching and Forwarding Module (SFM)

SFM Components

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)

Routing Engine Management Ports

BITS Input Ports

Alarm Relay Contacts

Power System

Power Supply

Circuit Breaker Box

Fuses

Cooling System

Cooling System Components

Airflow through the Chassis

Cable Management System

JUNOS Internet Software Overview

Routing Engine Software Components

Routing Protocol Process

IPv4 Routing Protocols

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

System Architecture Overview

Packet Forwarding Engine Architecture

Data Flow through the Packet Forwarding Engine

Routing Engine Architecture

Routing Engine Functions

Initial Installation

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

Chassis Grounding

Power, Connection, and Cable Specifications

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

Site Preparation Checklist

Unpacking the Router

Tools and Parts Required

Unpacking the Router

Installing the Router Using a Mechanical Lift

Tools and Parts Required

Installing the Chassis Using a Mechanical Lift

Installing the Router without a Mechanical Lift

Tools and Parts Required

Removing Components from the Chassis

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

Removing the Front Impeller Assembly

Installing the Chassis into the Rack

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

Connecting the Router and Performing Initial Configuration

Tools and Parts Required

Connecting the Router to Management and Alarm Devices

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

Providing Power to the Router

Connecting Power to the Router

Powering On the Router

Configuring the JUNOS Internet Software

Hardware Maintenance, Replacement, and Troubleshooting Procedures

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

Replacing Hardware Components

Tools and Parts Required

Replacing the CIP and Routing Engine Interface Port Cables

Removing the CIP

Installing the CIP

Replacing Connections to Routing Engine Interface Ports

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 Impeller Assembly

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

Installing an MCS

Removing and Insert the PC Card

Removing the PC Card

Insert the PC Card

Replacing a Routing Engine

Removing a Routing Engine

Installing a Routing Engine

Replacing Packet Forwarding Engine Components

Replacing an FPC

Removing an FPC

Installing an FPC

Replacing a PCG

Removing a PCG

Installing a PCG

Replacing a PIC

Removing a PIC

Installing a PIC

Replace PIC Cables

Removing a PIC Cable

Installing a PIC Cable

Replacing an SFM

Removing an SFM

Installing an SFM

Replace an SFP

Removing an SFP

Installing an SFP

Replacing Power System Components

Replacing the Circuit Breaker Box

Removing the Circuit Breaker Box

Installing the Circuit Breaker Box

Replacing a Power Supply

Removing a Power Supply

Installing a Power Supply

Disconnecting and Connecting Power

Disconnecting Power from the Router

Connecting Power to the Router

Replacing a Fuse

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

Blown Fuse Indicators

Juniper Networks Technical Assistance Center

Troubleshooting the Cooling System

Troubleshooting Packet Forwarding Engine Components

Troubleshooting FPCs

Troubleshooting PICs

Troubleshooting the Power System

All LEDs on Both Supplies Are Off

All LEDs on One Supply Are Off or LED States Are not Correct

Appendixes

Safety and Regulatory Compliance Information

Definition of Safety Warning Levels

Safety Guidelines and Warnings

General Safety Guidelines and Warnings

Qualified Personnel Warning

Restricted Access Area Warning

Preventing Electrostatic Discharge Damage

Electrical Safety Guidelines and Warnings

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

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

Compliance Statements for EMC Requirements

Canada

European Community

Japan

United States

Contacting Customer Support and Returning Hardware

Locating Component Serial Numbers

CIP Serial Number ID Label

Craft Interface Serial Number ID Label

DC Power Supply Serial Number ID Label

FPC Serial Number ID Label

MCS Serial Number ID Label

PCG Serial Number ID Label

PIC Serial Number ID Label

Routing Engine Serial Number ID Label

SFM Serial Number ID Label

Contacting Customer Support

Information You Might Need to Supply to JTAC

Return Procedure

Tools and Parts Required

Packing the Routing Node for Shipment

Packing Components for Shipment

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

X.21 and V.35 Cable Pinouts for EIA-530 PIC

Fast Ethernet 48-port Cable Pinouts

Index