Cisco Systems MWR 1900 manual Troubleshooting, Problem Solving

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A P P E N D I X A

Troubleshooting

Your Cisco MWR 1900 router goes through extensive testing before leaving the factory. If you encounter problems, use the information in this appendix to help isolate problems or to eliminate the router as the source of the problem.

This appendix contains the following sections:

Problem Solving, page A-1

Reading the LEDs, page A-3

If you cannot locate the source of the problem, contact a customer service representative for information on how to proceed. For technical support information, see the Cisco Information Packet publication that shipped with your router. Before you call, have the following information ready:

Chassis type and serial number

Maintenance agreement or warranty information

Type of software and version number

Date you received the new chassis

Brief description of the problem

Brief explanation of the steps you have taken to isolate the problem

Problem Solving

The key to problem solving is to isolate the problem to a specific subsystem by comparing what the router is doing to what it should be doing.

The LEDs on the front panel of the router enable you to determine router performance and operation. For a description of these LEDs, see Reading the LEDs, page A-3.

When problem solving, consider the following router subsystems:

Power and cooling systems—External power source, power cable, router power supply and circuit breaker, and router blower and fan. Also consider inadequate ventilation or air circulation.

Modules—LEDs on the modules help identify a failure.

Cables—External cables that connect the router to the network.

Cisco MWR 1900 Mobile Wireless Edge Router Hardware Installation Guide

 

78-13982-02

A-1

 

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Contents Customer Order Number DOC-7813982= Text Part Number Corporate HeadquartersCopyright 2002 Cisco Systems, Inc All rights reserved Obtaining Documentation Hardware FeaturesPreparing to Install the Router Safety Recommendations Safety with ElectricityConsole Port What to Do After Installing the HardwareProblem Solving Console Port ConnectionsChapter Title Description ObjectivesAudience OrganizationConvention Description ConventionsQuesto dispositivo Määräysten noudattaminen ja tietoa turvallisuudestaWarnung AvvertenzaObtaining Documentation World Wide Web¡Advertencia Varning Cisco.com Obtaining Technical AssistanceOrdering Documentation Documentation FeedbackContacting TAC by Using the Cisco TAC Website Technical Assistance CenterContacting TAC by Telephone Primary Use of the MWR Overview of the Cisco MWR 1900 RouterMWR 1900 in an IP-RAN Solution Hardware FeaturesFront Panel of the Cisco MWR 1900 Router Voice/WAN Interface Cards Fast Ethernet InterfacesOverview of Cisco MWR 1900 Power Supplies SpecificationCompact Flash Regulatory Compliance Environmental Monitoring Temperature SensorSystem Specifications Description SpecificationSafety Recommendations Preparing to Install the RouterSafety with Electricity General Site Requirements Creating a Site Log Inspecting the RouterTask Verified by Date Installation ChecklistConsole and Auxiliary Port Considerations Console Port ConnectionsAuxiliary Port Connections Rack Mounting the Chassis Installing the RouterAttaching the Brackets Connecting the Console Terminal and ModemInstalling the Router in the Rack Installing a T1/E1 Multiflex VwicConsole Port Identifying a Rollover CableConnecting the Network Cables Connecting the FE Interface CablesAuxiliary Port Pin Description Connecting the Vwic Interface CablesPin Cable SpecificationsRequired Tools and Equipment Connecting the MWR 1900 Router to a DC-Input Power SupplyGrounding the Router Powering On the Router Wiring the DC-Input Power SourceReplacing or Upgrading the CF Removing a CF Memory Card from an External Slot Installing a CF Memory Card in an External SlotCopy Files Formatting Procedures for CF Memory CardsFile and Directory Procedures Formatting CF Memory as a DOS File SystemDisplay Geometry and Format Information Display the Contents of a CF CardRename a File in Flash Delete Files from FlashCreate a New Directory Display File ContentWhat to Do After Installing the Hardware Remove a DirectoryEnter a Directory and Determine the Current Directory Problem Solving TroubleshootingEnvironmental Reporting Features Troubleshooting the Power and Cooling SystemsReading the LEDs Troubleshooting Modules, Cables, and ConnectionsCarrier detect G Color StatusColor Description Page Numerics IN-2 IN-3 IN-4