Disconnecting and Connecting DC Power | Juniper Networks M10i

M10i Internet Router Hardware Guide

Figure 42: Installing a DC Power Supply

Figure 43: Connecting Power Cables to a DC Power Supply

Disconnecting and Connecting DC Power

On a DC-powered router, the power cables from the external DC power sources connect to field-wiring terminals on each power supply. To disconnect or connect power to the router, perform the following procedures. Also follow these procedures when replacing the power cables, grounding cable, or both:

■Disconnecting DC Power from the Router on page 117

116■ Replacing Power System Components

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Juniper Networks M10i manual Disconnecting and Connecting DC Power, Installing a DC Power Supply

Contents

Hardware Guide M10i Internet Router Hardware Guide Iii End User License AgreementPage Table of Contents Part Initial Installation Chapter Junos Internet Software Overview Procedures Part Chapter Replacing Hardware Components 173 Part Appendixes135 175 183189 199 Part Index M10i Internet Router Hardware Guide Xii Table of Contents List of Figures Xiii 132 List of Tables M10i Internet Router Hardware Guide Xvi List of Tables About This Guide ObjectivesAudience Hardware Guide Text and Syntax Conventions Documentation ConventionsDomain-name List of Technical Publications Convention Description Sans serif typeface Technical Documentation for Supported Routing Platforms Junos Internet Software for Supported Routing Platforms Junos References Hardware Documentation Documentation Feedback Junos Internet Software Network Operations Guides Requesting Support Product Overview M10i Internet Router Hardware Guide Product Overview Field-Replaceable Units FRUs System OverviewSystem Description Field-Replaceable Units System RedundancyAC System Redundancy Safety Requirements, Warnings, and Guidelines DC System RedundancyPage Hardware Component Overview Router Chassis Front of Chassis Chassis Physical Specifications Midplane Flexible PIC Concentrators FPCs Physical Interface Cards PICs PIC Components Compact Forwarding Engine Board Cfeb Cfeb Components Cfeb States for Cfeb LEDs Routing Engine Routing Engine Components Hardware Component Overview Routing Engine Interface Ports Routing Engine States for Routing Engine LEDs High-Availability Chassis Manager HCM HCM Components Alarm LEDs High-Availability Chassis Manager States for HCM LEDs PIC Offline Buttons Power SuppliesAlarm LEDs AC Power Supply DC Power Supply Description Specification Power Supply LED States for Power Supply LED Fan Tray Cable Management System Cable Management System Junos Internet Software Overview Routing Engine Software Components Routing Protocol Process IPv4 Routing Protocols Junos Internet Software Overview IPv6 Routing Protocols Routing and Forwarding Tables Routing Policy VPNs Interface Process Chassis ProcessSnmp and MIB II Processes Management Process Tools for Monitoring the Software Tools for Accessing and Configuring the SoftwareSoftware Upgrades System Architecture Overview Packet Forwarding Engine Architecture Data Flow Through the Packet Forwarding Engine Routing Engine Architecture Packet Forwarding Engine Components and Data Flow Routing Engine Functions System Architecture Overview Page Initial Installation M10i Internet Router Hardware Guide Initial Installation Site Preparation Checklist Preparing for Router InstallationSite Preparation Checklist Rack Requirements Rack Size and Strength Typical Open-Frame Rack Connection to Building Structure Clearance Requirements for Airflow and Hardware MaintenanceSpacing of Mounting Holes Chassis Dimensions and Clearance Requirements Page Unpacking the Router Unpacking the RouterTools and Parts Required Unpacking the Router Generic Inventory of Router Components Generic Inventory of Router Components M10i Internet Router Hardware Guide Unpacking the Router Installing the Mounting Hardware Moving the Mounting Brackets Installing the Cable Management System Moving the Mounting Brackets on the Chassis Installing the Cable Management System Page Installing the Router Installing the Chassis in the Rack Installing the Chassis in the Rack Installing the Chassis into a Open-Frame Rack Installing the Chassis into a Four-Post Rack Connecting the Router Connecting the Router to Management Devices Connecting to a Network for Out-of-Band Management Connecting to a Management Console or Auxiliary Device Connecting PIC Cables Providing Power to the Router Connecting Power to an AC-Powered Router Connecting Power to a DC-Powered Router RTN Powering On the Router M10i Internet Router Hardware Guide Performing the Initial Configuration Configuring the Junos Internet Software Retype new password password or Root@# set system root-authenticationssh-dsapublic-key or Authentication-method password public-key Address address/prefix-lengthPage Part Page Maintaining the Cfeb Routine Maintenance ProceduresMaintaining Hardware Components Maintaining the Fan Tray Maintaining PICs and PIC Cables Maintaining PICs and PIC Cables Maintaining the Power Supplies Basics and Services Command Reference Maintaining the Routing Engine User@host show chassis routing-enginePage Command-Line Interface Troubleshooting Hardware ComponentsOverview of Troubleshooting Resources Hardware and Interface Alarm Messages LEDsLEDs on the HCM LEDs on Hardware Components Chassis Alarm Messages Media SONET/SDH Interface Alarm Messages Troubleshooting the Cfeb Juniper Networks Technical Assistance Center Troubleshooting the Fan Tray Troubleshooting PICs LED on One Supply Is Off Troubleshooting the Power SystemLED on All Supplies Are Blinking or Off User@host show chassis alarms Replacing Hardware Components Tools and Parts Required Replacing a Fan Tray Removing a Fan Tray Installing a Fan Tray Removing a Fan Tray Replacing a Cfeb Removing a Cfeb Installing a Cfeb Removing a Cfeb Replacing an HCM Removing an HCM User@host request chassis routing-engine master switch Services Command Reference Installing an HCM Removing a Routing Engine Installing the HCM Replacing a PIC Removing a PIC M10i Internet Router Hardware Guide Installing a PIC Removing a PIC M10i Internet Router Hardware Guide Replacing PIC Cables Removing a PIC Cable Installing a PIC Cable Replacing Hardware Components Connecting Fiber-Optic Cable to a PIC Replacing an SFP Removing an SFP Small Form-Factor Pluggable SFP Installing an SFP Replacing Power System Components Replacing an AC Power Supply Removing an AC Power Supply Installing an AC Power Supply Removing an AC Power Supply Disconnecting and Connecting AC Power Installing an AC Power Supply Disconnecting AC Power from the Router Connecting AC Power to the Router Replacing a DC Power Supply Removing a DC Power Supply Installing a DC Power Supply Removing a DC Power Supply RTN Disconnecting and Connecting DC Power Installing a DC Power Supply Disconnecting DC Power from the Router Connecting DC Power to the Router 48V Replacing Routing Engine Components Replacing the Routing Engine Removing a Routing Engine Services Command Reference Installing a Routing Engine Removing and Inserting the PC Card Removing the PC Card Inserting the PC Card Removing the PC Card Removing and Inserting the Internal Flash Drive Inserting the PC Card Inserting the Internal Compact Flash Disk Removing the Internal Flash Drive Configuring the Internal Compact Flash Disk Inserting the Internal Flash Drive Inserting a Sdram Module Removing and Inserting Sdram ModulesRemoving a Sdram Module Replacing Connectors to Routing Engine Interface Ports Installing the Sdram Module Replacing the Management Ethernet Cable Replacing the Console or Auxiliary Cable Console and Auxiliary Serial Port Connector Appendixes M10i Internet Router Hardware Guide Appendixes Safety and Regulatory Compliance Information Definition of Safety Warning Levels Safety Guidelines and Warnings General Safety Guidelines and Warnings Restricted Access Area Warning Qualified Personnel Warning Appendix a Safety and Regulatory Compliance Information Preventing Electrostatic Discharge Damage Fire Suppression Equipment Fire Safety RequirementsFire Suppression Case of Electrical Accident Electrical Safety Guidelines and WarningsGeneral Electrical Safety Guidelines and Warnings Grounded Equipment Warning M10i Internet Router Hardware Guide Power Disconnection Warning TN Power Warning Copper Conductors Warning AC Power Electrical Safety Guidelines DC Power Electrical Safety Guidelines DC Power Disconnection Warning DC Power Grounding Requirements and Warning DC Power Wiring Sequence Warning DC Power Wiring Terminations Warning Installation Safety Guidelines and Warnings Installation Instructions Warning Chassis Lifting Guidelines Rack-Mounting Requirements and Warnings M10i Internet Router Hardware Guide Appendix a Safety and Regulatory Compliance Information Ramp Warning Class 1 Laser Product Warning Laser and LED Safety Guidelines and WarningsGeneral Laser Safety Guidelines 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 EMC European Community Compliance Statements for EMC RequirementsCanada Declaration of Conformity JapanUnited States Compliance Statements for Acoustic Noise Lithium BatteryCompliance Statements for Environmental Requirements Page Router Environmental Specifications Environmental SpecificationsRouter Environmental Specifications Page Power Requirements, Guidelines, and Specifications Power Guidelines, Requirements, and SpecificationsSite Electrical Wiring Guidelines Distance Limitations for Signaling Router Power Requirements Component Power RequirementsRadio Frequency Interference Electromagnetic Compatibility Chassis Grounding AC Power, Connection, and Power Cord Specifications DC Power, Connection, and Cable Specifications AC Power Cord Specifications DC Power and Grounding Cable Specifications Cable Type Quantity and Specification Length DC Power and Grounding Cable Connections Page Cable Specifications Network Cable Specifications and GuidelinesFiber Optic and Network Cable Specifications Signal Loss in Multimode and Single-Mode Fiber-Optic Cable Attenuation and Dispersion in Fiber-Optic Cable Attenuation in SONET/SDH PICs Calculating Power Budget for Fiber-Optic Cable Calculating Power Margin for Fiber-Optic Cable Estimated Values for Factors Causing Link Loss Link-Loss Factor Estimated Link-Loss Value Interface For 100BaseT RJ-45/RJ-45 Operation Connectors Page Contacting Customer Support and Returning Hardware Locating Component Serial Numbers Cfeb Serial Number ID Label Serial Number ID Label HCM Serial Number ID Label PIC Serial Number ID Label Power Supply Serial Number ID Label AC Power Supply Serial Number ID Label Routing Engine Serial Number ID Label Contacting Customer Support Return Procedure Information You Might Need to Supply to Jtac Packing the Router for Shipment Packing Components for Shipment Packing Components for Shipment Page RJ-45 Connector Pinout Cable Connector PinoutsRJ-45 Connector Pinouts for the Routing Engine Mgmt Port RJ-48 Cable Pinouts for E1 and T1 PICs DB-9 Connector PinoutRJ-48 Connector to RJ-48 Connector Straight Pinout RJ-48 Connector to RJ-48 Connector Crossover Pinout RJ-48 Connector to DB-15 Connector Straight Pinout RJ-48 Connector to DB-15 Connector Crossover Pinout V.35 Cable Pinouts for EIA-530 PIC EIA-530 PIC DB-25 Connector to V.35 Connector Pinout DB-25 Connector to DB-15 X.21 Connector Pinout RJ-21 Cable Pinouts for Fast Ethernet 12-Port PIC Vhdci to RJ-21 Cable RJ-21 Pin Assignments Index M10i Internet Router Hardware Guide Index Symbols PIC EMC EMI SFP PIC Cfeb Port See also warnings Snmp General