Juniper Networks MX240 manual 100, 102, 103, 104, 105, 106

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MX240 Ethernet Services Router Hardware Guide

Chapter 12	Troubleshooting Hardware Components	79
	Overview of Troubleshooting Resources	79
	Juniper Networks Technical Assistance Center	79
	Command-Line Interface	79
	Chassis and Interface Alarm Messages	80
	Alarm Relay Contacts	80
	LEDs	80
	Craft Interface LEDs	80
	Component LEDs	81
	Troubleshooting the Cooling System	82
	Troubleshooting DPCs	83
	Troubleshooting the Power System	84
Chapter 13	Replacing Hardware Components	87
	Field-Replaceable Units (FRUs)	87
	Tools and Parts Required	88
	Replacing the Craft Interface	89
	Removing the Craft Interface	89
	Installing the Craft Interface	90
	Replacing Alarm Relay Wires	91
	Disconnecting the Alarm Relay Wires	91
	Connecting the Alarm Relay Wires	92
	Replacing Cooling System Components	92
	Replacing the Fan Tray	92
	Removing the Fan Tray	92
	Installing the Fan Tray	93
	Replacing the Air Filter	94
	Removing an Air Filter	94
	Installing the Air Filter	95
	Replacing Host Subsystem Components	96
	Taking the Host Subsystem Offline	96
	Replacing an SCB	97
	Operating and Positioning the SCB Ejectors	98
	Removing an SCB	99
	Installing an SCB	100
	Replacing a Routing Engine	102
	Removing a Routing Engine	102
	Installing a Routing Engine	103
	Replacing Connections to Routing Engine Interface Ports	104
	Replacing the Management Ethernet Cable	105
	Removing the Management Ethernet Cable	105
	Installing the Management Ethernet Cable	105
	Replacing the Console or Auxiliary Cable	105
	Disconnecting the Cable from a Management Console or Auxiliary
	Device	105
	Connecting the Cable to a Management Console or Auxiliary
	Device	106

viii■ Table of Contents

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Contents Hardware Guide North Mathilda Avenue Sunnyvale, CaliforniaMX240 Ethernet Services Router Hardware Guide Iii End User License AgreementPage Table of Contents Part Setting Up the Router AC Power Supply LEDsInstalling the Router Using a Lift Moving the Mounting Brackets for Center-Mounting the RouterHandling and Storing DPCs Holding a DPC Storing a DPC Maintaining the Air Filter Maintaining the Fan TrayMaintaining DPCs Connecting the Cable to a Management Console or Auxiliary 100102 103Part Appendixes 121125 126155 161163 165Removing the Power Supplies 188 Removing the Fan Tray 189 176179 183Part Index 203204 205Rear View of a Fully Configured AC-Powered Router Chassis List of Figures191 111175 List of Tables 186 Audience About This GuideObjectives Text and Syntax Conventions Documentation ConventionsOn page xviii defines the notice icons used in this guide List of Technical Publications Convention Description Plain text like thisTechnical Documentation for Supported Routing Platforms Junos Software for Supported Routing PlatformsJunos References Web User Guide Xxiii Junos Software with Enhanced Services Documentation Junos Software Network Operations GuidesTraffic classification Obtaining Documentation Documentation FeedbackRequesting Technical Support Self-Help Online Tools and ResourcesPage MX240 Router Overview Router Overview on Hardware Components onPage Router Overview Router DescriptionComponent Redundancy Hardware Components Router ChassisFront View of a Fully Configured Router Chassis Rear View of a Fully Configured AC-Powered Router Chassis Midplane Dense Port Concentrators DPCsTypical DPCs Supported on the MX240 Router 40-Port Gigabit Ethernet DPC LEDs DPC ComponentsFour-Port 10-Gigabit Ethernet DPC LEDs Switch Control Board SCB Host SubsystemSCB Slots SCB RedundancySCB LEDs Switch Control Board LEDsSCB Components Routing Engine Routing Engine ComponentsEthernet Routing Engine LEDs Routing Engine Boot SequenceRouting Engine Interface Ports Cable Management System Craft InterfaceAlarm LEDs and Alarm Cutoff/Lamp Test Button SCB LEDs on Fan LEDs on Alarm Relay Contacts onPower Supply LEDs Alarm LEDs and Alarm Cutoff/Lamp Test ButtonPower Supply LEDs on the Craft Interface Host Subsystem LEDsFan LEDs DPC LEDsSCB LEDs AC Power Supply Alarm Relay ContactsPower Supplies AC Power Supply LEDs AC Power SupplyAC Power Supply LEDs DC Power SupplyDC Power Supply Configurations for the MX240 Router Cooling System DC Power Supply LEDsDC Power Supply LEDs Airflow Through Chassis Air Filter Setting Up the Router Page Site Preparation Checklist Preparing the Site for Router InstallationSite Preparation Checklist Cabinet Airflow Requirements Cabinet RequirementsCabinet Size and Clearance Requirements Rack Requirements Rack Size and StrengthConnection to Building Structure Clearance Requirements for Airflow and Hardware MaintenanceSpacing of Mounting Bracket Holes Chassis Dimensions and Clearance Requirements Page Installation Overview MX240 Ethernet Services Router Hardware Guide Unpacking the Router Unpacking the RouterTools and Parts Required Contents of the Shipping Crate Verifying Parts ReceivedParts List for a Fully Configured Router Accessory Box Parts ListAccessory Box Parts List Four-Post Rack or Cabinet Mounting Hole Locations Installing the Mounting HardwareInstalling the Mounting Hardware for a Rack or Cabinet MX240 Ethernet Services Router Hardware Guide Installing the Mounting Hardware for an Open-Frame Rack Moving the Mounting Brackets for Center-Mounting the RouterMX240 Ethernet Services Router Hardware Guide Installing the Router Using a Mechanical Lift Installing the RouterSafety Requirements, Warnings, and Guidelines Installing the Router Using a Lift Tools RequiredInstalling the Router in the Rack Page Connecting the Router Connecting the Router to Management and Alarm DevicesConnecting to an External Alarm-Reporting Device Connecting to a Network for Out-of-Band ManagementConnecting to a Management Console or Auxiliary Device Connecting DPC Cables Attaching a Cable to a DPC Grounding and Providing Power to the Router Connecting Power to an AC-Powered Router Grounding the RouterPowering On an AC-Powered Router To power on an AC-powered routerConnecting Power to a DC-Powered Router Grounding and Providing Power to the Router Powering On a DC-Powered Router Connecting DC Power to the RouterPowering Off the Router MX240 Ethernet Services Router Hardware Guide Configuring Junos Software Configuring the Junos SoftwareConfiguring the Junos Software on Log in as the root user. There is no passwordEnter configuration mode Configure the router’s domain nameConfigure the IP address of a DNS server Start the CLICommit the configuration to activate it on the router Edit Root@# commitPage Part Page Routine Maintenance Procedures Maintaining Hardware ComponentsMaintaining the Fan Tray Maintaining Cooling System ComponentsMaintaining the Air Filter Maintaining Hardware Components Maintaining the Host Subsystem User@host show chassis routing-engineUser@host show chassis environment cb Maintaining Packet Forwarding Engine Components Maintaining DPCsUser@host show chassis fpc detail Maintaining DPC Cables Handling and Storing DPCsHolding a DPC DPC EdgesDo Not Grasp the Connector Edge Storing a DPC Do Not Rest the DPC on an EdgeMaintaining the Power Supplies Troubleshooting Hardware Components Overview of Troubleshooting ResourcesCommand-Line Interface Juniper Networks Technical Assistance CenterCraft Interface LEDs Chassis and Interface Alarm MessagesLEDs Component LEDs Troubleshooting the Cooling System Airflow Through the ChassisTroubleshooting DPCs Troubleshooting the Power System Basics and Services Command ReferenceTemperature DC output Page Replacing Hardware Components Field-Replaceable Units FRUsField-Replaceable Units Tools and Parts RequiredTo remove the craft interface see on Replacing the Craft InterfaceRemoving the Craft Interface Installing the Craft Interface To install the craft interface see onReplacing Alarm Relay Wires Disconnecting the Alarm Relay WiresConnecting the Alarm Relay Wires Replacing Cooling System ComponentsReplacing the Fan Tray Removing the Fan TrayInstalling the Fan Tray To install the fan tray see onReplacing the Air Filter Removing an Air FilterTo remove the air filter see on Installing the Air FilterTo install the air filter see on Replacing Host Subsystem Components Taking the Host Subsystem OfflineReplacing an SCB Master in the Current state fieldOperating and Positioning the SCB Ejectors Removing an SCB Removing an SCBInstalling an SCB To install an SCB see onTo check the status of the SCB, use the CLI command Replacing a Routing Engine Removing a Routing EngineInstalling a Routing Engine Removing a Routing EngineInstalling a Routing Engine Replacing Connections to Routing Engine Interface PortsInstalling the Management Ethernet Cable Replacing the Management Ethernet CableReplacing the Console or Auxiliary Cable Removing the Management Ethernet CableRemoving a DPC Replacing DPCs and TransceiversReplacing a DPC User@hostrequest chassis fpc slot slot-numberoffline Installing a DPC To install a DPC see onUser@hostrequest chassis fpc slot slot-numberonline Installing a DPC Removing an SFP or XFP TransceiverRemoving SFPs or XFPs Installing an SFP or XFP Transceiver Replacing Power System ComponentsRemoving an AC Power Supply Removing an AC Power SupplyTo install an AC power supply see on Installing an AC Power SupplyRemoving a DC Power Supply Replacing Hardware Components Installing a DC Power Supply Removing a DC Power Supply from an MX240 RouterReplacing Hardware Components Replacing an AC Power Cord Installing a DC Power Supply in an MX240 RouterConnecting an AC Power Supply Cord Replacing a DC Power Supply CableDisconnecting an AC Power Cord Disconnecting a DC Power Supply Cable Connecting a DC Power Supply CableReplacing the Cable Management System Removing the Cable Management SystemInstalling the Cable Management System Removing or Installing the Cable Management SystemAppendixes MX240 Ethernet Services Router Hardware Guide Appendixes Safety and Regulatory Compliance Information Definition of Safety Warning LevelsSafety Guidelines and Warnings General Safety Guidelines and Warnings Qualified Personnel WarningRestricted Access Area Warning Appendix a Safety and Regulatory Compliance Information Fire Safety Requirements Preventing Electrostatic Discharge DamageFire Suppression Equipment Installation Safety Guidelines and WarningsFire Suppression Installation Instructions Warning Chassis-Lifting GuidelinesRack-Mounting Requirements and Warnings MX240 Ethernet Services Router Hardware Guide Appendix a Safety and Regulatory Compliance Information Laser and LED Safety Guidelines and Warnings Ramp WarningWaarschuwing Klasse 1 LED-product General Laser Safety GuidelinesClass 1 Laser Product Warning Class 1 LED Product Warning Laser Beam Warning Maintenance and Operational Safety Guidelines and Warnings Radiation from Open Port Apertures WarningBattery Handling Warning Operating Temperature Warning on Product Disposal Warning onJewelry Removal Warning Operating Temperature Warning Lightning Activity WarningProduct Disposal Warning Electrical Safety Guidelines and Warnings Case of Electrical AccidentGeneral Electrical Safety Guidelines and Warnings Grounded Equipment WarningMX240 Ethernet Services Router Hardware Guide Power Disconnection Warning AC Power Electrical Safety Guidelines TN Power WarningDC Power Electrical Safety Guidelines and Warnings DC Power Electrical Safety GuidelinesCopper Conductors Warning DC Power Disconnection Warning DC Power Grounding Requirements and Warning DC Power Wiring Sequence Warning DC Power Wiring Terminations Warning Agency Approvals and Compliance Agency ApprovalsEN 60950-1 Safety of Information Technology Equipment Compliance Statements for NEBs RequirementsEuropean Community Compliance Statements for EMC RequirementsCanada Japan Lithium Battery Compliance Statements for Environmental RequirementsCompliance Statements for Acoustic Noise United StatesPage Physical Specifications Physical SpecificationsPhysical Specifications Page Router Environmental Specifications Router Environmental SpecificationsRouter Environmental Specifications Page Grounding Cable Lug Specification Power Guidelines, Requirements, and SpecificationsChassis Grounding Specifications Grouding Cable Specification DC Power Specifications and RequirementsDC Power Specifications Grounding Cable SpecificationsPower Consumption for DC-Powered Routers DC Power System Electrical SpecificationsDC Power Supply Electrical Specifications DC Power System Electrical SpecificationsDC-Powered Base Router Power Requirements Component Power RequirementsDC Power Circuit Breaker Specifications DC Power Cable Specifications On page 170 shows a typical DC source cabling arrangementAC Power Specifications and Requirements DC Power Cable Lug SpecificationsDC Power Cable Specifications DC Power Cable SpecificationsAC Power Specifications Power Consumption for AC-Powered RoutersAC Power System Electrical Specifications AC Power Supply Electrical SpecificationsAC Base Router Power Requirements Component Power Requirements for AC-Powered RoutersAC Power Circuit Breaker Specifications AC Power Cord SpecificationsAC Power Cord Specifications AC Plug TypesSite Electrical Wiring Guidelines Distance Limitations for SignalingRadio Frequency Interference Electromagnetic CompatibilitySite Electrical Wiring Guidelines Page Cable and Wire Guidelines and Specifications Network Cable Specifications and GuidelinesFiber-Optic and Network Cable Specifications Signal Loss in Multimode and Single-Mode Fiber-Optic CableAttenuation and Dispersion in Fiber-Optic Cable Estimated Values for Factors Causing Link Loss Calculating Power Budget for Fiber-Optic CableCalculating Power Margin for Fiber-Optic Cable Estimated Values for Factors Causing Link Loss Routing Engine Interface Cable and Wire Specifications Page Cable Connector Pinouts RJ-45 Connector Pinout for the Routing Engine Ethernet PortRJ-45 Connector Pinout for the AUX and Console Ports Pin Signal DescriptionInstalling the Router Without a Mechanical Lift Removing Components from the ChassisRemoving the Power Supplies Removing a Power Supply Before Installing the RouterRemoving the Fan Tray Removing SCBsRemoving DPCs Removing a DPC Installing the Chassis in the Rack Manually Reinstalling Components in the Chassis Reinstalling the Power SuppliesReinstalling the Fan Tray To reinstall the fan trayReinstalling SCBs To reinstall an SCB see onReinstalling DPCs To reinstall a DPC see onContacting Customer Support and Returning Hardware Locating Component Serial NumbersMX240 Chassis Serial Number Label On page 198 attached to the component bodySCB Serial Number Label MX240 Chassis Serial Number LabelPower Supply Serial Number Labels DPC Serial Number LabelAC Power Supply Serial Number Label Routing Engine Serial Number LabelContacting Customer Support Information You Might Need to Supply to JtacReturn Procedure Packing the Router for Shipment Packing Components for Shipment Page Index Index onMX240 Ethernet Services Router Hardware Guide Index Symbols CLI EMC EMI Jtac See also warnings Specifications AC power cord 174 Cable 179 Power 170

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