Cisco Systems UBR7100E manual Troubleshooting the Cooling Subsystem, Queued messages

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Chapter 5 Troubleshooting the Installation

Troubleshooting the Cooling Subsystem

Troubleshooting the Cooling Subsystem

Check the following to help isolate a problem with the cooling system:

•When you start up the system, do the fans start operating?

To determine if the fans are operating, listen for them. In noisy environments, place your hand on the front of the chassis to feel for air being pushed out of the vents. If necessary, pop off the front bezel to expose the fans and verify that they are operating correctly.

–If yes, the power to the fans is good.

–If no, there is a problem with the fan or power. (See the “Troubleshooting the Power Subsystem” section on page 5-4.)

•The following messages, if displayed, indicate that the system has detected a critical overtemperature condition or out-of-tolerance power inside the chassis:

Queued messages:

00:01:19:%ENVM-4-ENVWARN:+2.5 V measured at +2.59 00:01:19:%ENVM-4-ENVWARN:+5.15 V measured at +5.31

00:00:19:%ENVM-2-ENVCRIT:chassis core measured at 31C/87F 00:00:19:%ENVM-2-ENVCRIT:chassis inlet measured at 27C/80F 00:00:19:%ENVM-2-ENVCRIT:chassis outlet 1 measured at 30C/86F 00:00:19:%ENVM-2-ENVCRIT:chassis outlet 2 measured at 30C/86F

Although an overtemperature condition is unlikely at initial startup, ensure that heated exhaust air from other equipment is not entering the router’s inlet vent and that there is sufficient clearance around the sides of the chassis to allow cooling air to flow.

The above message could also indicate a faulty component or temperature sensor. Use the show environment or show environment table command to display the internal chassis environment.

If you experience trouble with the startup that is not resolved with these procedures, manually power off the router and contact a service representative for assistance and further instructions.

Cisco uBR7100 Series and Cisco uBR7100E Series Universal Broadband Router Hardware Installation Guide

5-6	OL-5916-01

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Contents Corporate Headquarters Text Part Number OL-5916-01Copyright 2004 Cisco Systems, Inc. All rights reserved N T E N T S IiiPreparing for Installation Maintenance EuroDOCSIS Upstream and Downstream Specifications A-5 Preface PurposeAudience ViiOrganization Related DocumentationChapter Description ViiiConventions Safety Warning Bewaar Deze InstructiesAvvertenza Importanti Istruzioni Sulla Sicurezza Warnung Wichtige SicherheitshinweiseAviso Instruções Importantes DE Segurança Spara Dessa Anvisningar XiiGEM Disse Anvisninger XiiiXiv Terms and Acronyms Xvi Obtaining Documentation Cisco.comOrdering Documentation XviiSubmitting a Service Request Documentation FeedbackObtaining Technical Assistance Cisco Technical Support WebsiteObtaining Additional Publications and Information Definitions of Service Request SeverityXix Preface Obtaining Additional Publications and Information Product Overview Product DescriptionCisco uBR7100 Series Router Operational Features Cisco uBR7100 Series ModelsCisco uBR7111 and Cisco uBR7111E Cisco uBR7114 and Cisco uBR7114ECisco uBR7100 Series Routers Physical Description DS0 RF Cisco uBR7100 Series Front Panel Ethernet/Fast Ethernet LAN Interface Fixed Interface UnitsRF Cable Interface Field-Replaceable Units Port AdaptersWAN Technology Product Description End of Life Flash Disks Memory Size Product Number Spare Product NumberTotal Sdram Memory Configuration Product Number Sdram MemoryRack-Mount and Cable-Management Kit Functional OverviewChassis Slot and Logical Interface Numbering Indentifing Interface Information in the Software Router# show interfacesMAC Addresses Online Insertion and Removal Peripheral Component Interconnect BusesNetwork Processor Card Front Memory Type Size Quantity Description LocationOther Interfaces Router# show versionSystem LEDs and Reset Button DS0 RFLED Label Color State Function SYS RDYOL-5916-01 Preparing for Installation Tools and Parts RequiredShipping Container Contents Safety Guidelines Electrical Equipment GuidelinesPreparing for Installation Safety Guidelines Electrostatic Discharge Prevention Chassis Lifting GuidelinesSite Requirement Guidelines Rack-Mounting GuidelinesCisco uBR7114 Router Footprint and Outer Dimensions Temperature and Humidity Requirements Power Connection Guidelines Specification Minimum MaximumPlant Wiring Guidelines Interference ConsiderationsEthernet Connections Distance Limitations and Interface SpecificationsPort Adapter WAN Connections Console and Auxiliary Port Considerations Console Port ConnectionsAuxiliary Port Connections OL-5916-01 Installing Cisco uBR7100 Series Universal Broadband Routers Physical PlacementMounting the Chassis on a Tabletop Cisco uBR7100 series router Chassis bottomRack-Mounting the Chassis Attaching the BracketsInstalling the Chassis in a Rack Brackets can also be installed with the front panel forwardAttaching the Ground Wire Attaching the System Ground ConnectionAttaching the Ground Wire to the Grounding Lug Attaching the Cable-Management Bracket Connecting to the Network Connecting Upstream and Downstream PortsConnecting the Fast Ethernet Ports 10 Connecting the LAN Port to an Ethernet HubConnecting the Console Port and Auxiliary Port Connecting to the Console PortConnecting a Modem to the Auxiliary Port 12 Connecting a Modem to the Auxiliary PortConnecting the Power 13 Connecting the AC Power CordSystem Startup Checking Conditions Prior to System StartupStarting the System Restricted Rights LegendSystem LEDs These LEDs remain off during normal operation of the router Troubleshooting Overview Troubleshooting the InstallationBefore You Call for Technical Assistance Identifying Startup Problems Problem Solving Using a Subsystems ApproachLocating the Serial Number on Your Router Troubleshooting Strategy for Startup Problems Troubleshooting the Power Subsystem Troubleshooting the Processor SubsystemTroubleshooting the Network Processor Card Troubleshooting the Port Adapter and Fixed RF PortsTroubleshooting the Cooling Subsystem Queued messagesMaintenance Online Insertion and RemovalEnvironmental Monitoring and Reporting Functions Environmental MonitoringDisplaying Environmental Status Reports Parameter High Warning High CriticalRouter# show environment last Inserting a Flash Memory Card Flash Memory Card UsageFan Failures Front Back Inserting and Ejecting a Flash Disk Memory Card Removing a Flash Memory Card Formatting a Flash Memory CardCopying a Bootable Image onto a Flash Memory Card Memory Card section on page 6-8. Then proceed to StepCopying Bootable Images Between Flash Memory Cards Insert the new flash memory card into slotUpgrading the Sdram Memory Modules Removing the Chassis Cover Cover screwsRemoving the Sdram Dimm Removing the CoverBack Front Replacing the Sdram Dimm 10 Handling the DimmReplacing the Chassis Cover 11 Inserting the DimmPowering On the Router 12 Replacing the Chassis CoverOL-5916-01 Physical Specifications System SpecificationsDescription Specification Router Model Upstream Modulation If OutputRF Specifications Docsis Upstream and Downstream SpecificationsSpecification Docsis Specifications1 Minimum Settings2 Upstream Bandwidth Qpsk Data Throughput QAM Data ThroughputTable A-6 Docsis Cable Downstream RF Specifications EuroDOCSIS Upstream and Downstream Specifications Minimum Settings2 Your Headend SettingsTable A-8 EuroDOCSIS Cable Downstream RF Specifications Integrated Upconverter Specifications OL-5916-01 North American Channel Plans Manufacturers for Headend Provisioning RequirementsManufacturer1 Website or Phone Number Products/Model Manufacturer Website or Phone Number Products/Model Agilent Agilent 89411AEuropean Channel Plans Agilent Agilent 8591C Tektronix 2715 Sunrise Telecom AT2000R Cable Specifications Coaxial CablesConsole and Auxiliary Port Cables and Pinouts Identifying an RJ-45 Rollover CableConsole Port Cables and Pinouts RJ-45-to-DB-9Auxiliary Port Cables and Pinouts Fast Ethernet Port Cables and PinoutsIdentifying an RJ-45 Crossover Cable Identifying an RJ-45 Straight-Through Cable RJ-45 Pin DescriptionFiber-Optic Cables and Connectors Figure C-5 Duplex SC Cable ConnectorLaser Classification Labels Figure C-8 Laser Caution LabelOL-5916-01 Frequency Allocation Tables Standards Comparisons B1, G D1, KNtsc Cable Television Channels and Relative Frequencies Freq MHz Carrier Visual Aural Channel Bandwidth Visual Center Freq MHz Carrier Visual Aural Channel Bandwidth Visual Center Ntsc M Cable Television Frequencies for Japan Table D-5 Japanese Channel Assignments PAL/SECAM Cable Television Channels and Relative Frequencies Channel Bandwidth Visual Carrier Aural Carrier Number MHzChannel Bandwidth Visual Carrier Aural Carrier Number MHz Channel Bandwidth Visual Carrier Aural Carrier Number MHz Channel Bandwidth Visual Carrier Aural Carrier Number MHz OL-5916-01 Site Log Date InitialsD E IN-1CPU reset button IN-2Pcmcia IN-3HFC C-1 IN-4Location Memory options Memory types PCI bus IN-5Snmp IN-6Tap manufacturers IN-7Wrist straps, attaching IN-8

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