Cisco Systems UBR7100E manual Troubleshooting the Power Subsystem

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Chapter 5 Troubleshooting the Installation

Troubleshooting the Power Subsystem

–The system ready LED (SYS RDY) comes on after the power LED and indicates that the network processor card is enabled for operation by the system; however, it does not mean that the Fast Ethernet port is functional or enabled. This LED comes on during a successful router boot and remains on during normal operation of the router.

If this LED remains off when you start the router, it is probably a problem with the main processor card. Contact your service representative for technical assistance.

–Each enabled LED for the cable interface (EN, DS0 RF, DS0, U0, U1, U2, and U3) comes on initially at power-on and then turns off. The LED then comes on again and remains on when the corresponding port is enabled and configured for operations.

If an enabled LED fails to come on at initial power-on, or if the LED fails to come on and remain on after the port is enabled and configured, proceed to the “Troubleshooting the Port Adapter and Fixed RF Ports” section on page 5-5.

–The slot 0 and slot 1 LEDs only come on when the PCMCIA card slot is being accessed by the system. These LEDs remain off during normal operation of the router and do not indicate startup problems.

•The initial system banner should be displayed on the console screen.

If it is not displayed, see the “Connecting the Console Port and Auxiliary Port” section on page 3-10to verify that the terminal is set up correctly and that it is properly connected to the router’s console port.

Troubleshooting the Power Subsystem

Check the following to help isolate a problem with the power subsystem:

•Is the power LED (PWR) on?

–If yes, the power source is good, and the power supply is functional.

–If no, make sure that the power cable is connected at both ends.

–If the power LED remains off, and the power switch is set correctly, suspect the power source or the power cable. Turn the switch off, connect the power cable to another power source, if available, and turn the switch back on. If the LED comes on, the problem is the first power source.

–If the power LED fails to come on after you connect the power supply to a new power source, replace the power cord, and turn the switch back on. If the LED comes on, return the first power cable for replacement.

–If the LED still fails to come on when the power supply is connected to a different power source with a new power cable, the power supply is probably faulty. Contact a service representative for further instructions.

Troubleshooting the Processor Subsystem

The processor subsystem comprises the network processing card and the ports. The system can operate without a port adapter installed as long as none are in partial contact with the connector pins. A port adapter that is partially connected to the router sends incomplete signals to the processor, which faults the Peripheral Component Interconnect (PCI) bus and causes the system to hang. Therefore, first ensure

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

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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 Audience PrefacePurpose ViiChapter Description OrganizationRelated Documentation ViiiConventions Safety Warning Bewaar Deze InstructiesAviso Instruções Importantes DE Segurança Warnung Wichtige SicherheitshinweiseAvvertenza Importanti Istruzioni Sulla Sicurezza Spara Dessa Anvisningar XiiGEM Disse Anvisninger XiiiXiv Terms and Acronyms Xvi Ordering Documentation Obtaining DocumentationCisco.com XviiObtaining Technical Assistance Submitting a Service RequestDocumentation Feedback Cisco Technical Support WebsiteXix Definitions of Service Request SeverityObtaining Additional Publications and Information Preface Obtaining Additional Publications and Information Product Overview Product DescriptionCisco uBR7111 and Cisco uBR7111E Cisco uBR7100 Series Router Operational FeaturesCisco uBR7100 Series Models Cisco uBR7114 and Cisco uBR7114ECisco uBR7100 Series Routers Physical Description DS0 RF Cisco uBR7100 Series Front Panel RF Cable Interface Fixed Interface UnitsEthernet/Fast Ethernet LAN 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 MemoryChassis Slot and Logical Interface Numbering Functional OverviewRack-Mount and Cable-Management Kit 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 ConsiderationsPort Adapter WAN Connections Distance Limitations and Interface SpecificationsEthernet 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 Before You Call for Technical Assistance Troubleshooting the InstallationTroubleshooting Overview Locating the Serial Number on Your Router Problem Solving Using a Subsystems ApproachIdentifying Startup Problems 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 Fan Failures Flash Memory Card UsageInserting a Flash Memory Card 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 Description Specification System SpecificationsPhysical Specifications Router Model Upstream Modulation If OutputSpecification Docsis Specifications1 Minimum Settings2 RF SpecificationsDocsis Upstream and Downstream Specifications 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 Manufacturer1 Website or Phone Number Products/Model Manufacturers for Headend Provisioning RequirementsNorth American Channel Plans 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-9Identifying an RJ-45 Crossover Cable Fast Ethernet Port Cables and PinoutsAuxiliary Port Cables and Pinouts 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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