Cisco Systems 80O SERIES manual Troubleshooting

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C H A P T E R 3

Troubleshooting

This chapter describes problems that could occur with the Cisco 800 series router hardware, reasons for the problems, and steps to solve the problems. The problems are grouped as follows:

•Problems during first startup

•Problems after first startup

•Problems after router is running

For information on problems that could occur with the software, refer to the Cisco 800 Series Routers Software Configuration Guide.

Cisco 800 Series Routers Hardware Installation Guide

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Contents Cisco 800 Series Routers Hardware Installation Guide Page Cisco 800 Series Routers Hardware Installation Guide Page N T E N T S Mounting on a Table Organization AudienceConventions ViiViii Cisco.com Obtaining DocumentationDocumentation DVD Ordering DocumentationReporting Security Problems in Cisco Products Documentation FeedbackCisco Product Security Overview Cisco Technical Support Website Obtaining Technical AssistanceDefinitions of Service Request Severity Submitting a Service RequestObtaining Additional Publications and Information XiiXiii Xiv Overview Feature Routers Description Feature SummaryRouter Ports Summary Front PanelsRouter Ethernet Ports Isdn Ports Telephone Ports Link LED Ethernet port Isdn BRI S/T port Back PanelsCisco 802 Router Back Panel Cisco 804 Router Back Panel Color Function LEDsCH1 RXD CH1CH1 TXD CH2Installation European Union Statements SafetyPreventing Electrostatic Discharge Damage Network Termination Point StatementIsdn S/T Ports Statement Preinstallation Activities Preventing Router DamageUnpacking Your Router Installing Your Router Network Connecting Ethernet DevicesDevice Network Device Ethernet CableConnected to Router Router Port Type Button Setting Connecting Hubs Connecting a Server, PC, or Workstation Connecting an Isdn Line to Cisco 801 and Cisco 803 Routers Connecting an Isdn LineNT1 Connecting an Isdn Line to Cisco 802 and Cisco 804 Routers Isdn Connecting an Idsl LineConnecting the Idsl Cable to Cisco Idsl Routers Connecting a Digital TelephoneConnecting an Analog Telephone, Fax, or Modem Vendor Name Product Name For More Information Connecting Terminal or PC Connecting a Terminal or PCConnecting the Power Supply Mounting Your RouterMounting on a Table 11 Wall-Mounting Brackets Bottom of Router Mounting on a WallInstallation Verifying Installation Verifying InstallationPower/Link LEDs To Check Normal Patterns Where to Go from Here Troubleshooting Symptom Problem Solutions Problems During First StartupSymptom Problems After First StartupTo HUB/TO PC LINE, CH1, CH1 RXDCorrectly, see the Connecting a Digital Problems After Router Is Running CH1 RXD, CH1 TXD, CH2 CH1, CH1 RXD, CH1 TXDWhen Contacting Your Cisco Reseller Page Isdn and Idsl Concepts Page Description Design Specification System SpecificationsTX+ RX+ Port Connector PinoutsButton OUT Pin Position RX+ TX+Pin Function Button Pin OUT PositionRTS DTR TXD GND RXD DSR CTS Tip TXD+ RXD+ROF RTN Cabling SpecificationsMaximum Cable Distances Ethernet Cable SpecificationsType Category Shielding 10BASE-TPage GL-1 NumericsGL-2 GL-3 GL-4 IN-1 D EIN-2 Modem, connecting Mounting the routerIN-3 Illustrated Settings TroubleshootingIN-4