Cisco Systems 815 manual Troubleshooting WICs and Cables, Number of Blinks Meaning

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Chapter 3 Troubleshooting

Problem Solving

Table 3-1	OK LED Blinking Patterns

Number of Blinks		Meaning

2		The 860P dual-port random-access memory (DPRAM) has
		failed.

3		The parameter RAM area of the 860P DPRAM has failed.

4		The 860P system protection control register has a write
		failure.

5		The router cannot detect the dynamic random-access
		memory (DRAM).

6		The user programmable machine has a write failure.

9		The router DRAM has failed.

Troubleshooting WICs and Cables

Use the show diag command to help determine problems with a card. Table 3-2lists problems that could occur with WAN interface cards (WICs) and the possible causes of these problems.

Table 3-2			Troubleshooting WICs

Symptom				Possible Cause(s)

Router does not recognize				• Confirm that the Cisco IOS software version installed in the router
WIC.				supports the WIC. The Cisco Interface Cards Hardware
				Installation Guide lists the software requirements for each card.
				• Use the show diag command to display information about the card
				as shown in Example, page 3-9.

Router recognizes the				• Make sure that the WIC is correctly installed in the router.
WIC(s), but the card port(s)				• Check the external cable connections to make sure they are secure.
do not initialize.


Router does not boot				Make sure that the WIC is correctly installed in the router.
properly, or router
continuously or
intermittently reboots.

		Cisco 815 Integrated Services Router Hardware Installation Guide

3-8				OL-9558-01

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Contents Corporate Headquarters Page Cisco Systems, Inc. All rights reserved Page N T E N T S Installation Installing and Removing a Dimm C-4 ViiViii Audience and Scope OrganizationRelated Documentation Conventions Xii Xiii Xiv Page Xvi Xvii Commands XviiiCisco.com AccessibilityObtaining Documentation XixProduct Documentation DVD Ordering Documentation Documentation Store in the Cisco Marketplace at this URLCisco Product Security Overview Documentation FeedbackXxi Reporting Security Problems in Cisco Products XxiiCisco Technical Support & Documentation Website Obtaining Technical AssistanceXxiii Definitions of Service Request Severity Submitting a Service RequestXxiv Obtaining Additional Publications and Information XxvXxvi Key Features OverviewFeature Description Product Serial Number Location CiscoBack Panel Ports and LEDs Back Panel Ports and LEDsLabel/Color Description Front Panel LEDs WIC0 OKLED Label Color Description Router Memory Types of MemoryAmounts of Memory 815# show versionItems Included with the Cisco 815 Integrated Services Router Unpacking the RouterInstallation Before Installing the RouterConnecting the Router to Your Local Network Installation Connecting the Router to Your Local Network Connecting the Router to the Local Network Connecting Power to the Router Connecting the Power SupplyVerifying Your Installation Optional Installation Procedures Connecting a PCConnecting the Console Cable to the Router Connecting a Modem AUX port RJ-45 DB-9-to-DB-25 adapter Console cable ModemStacking the Router Assembling Stacking Clip and Fastener Stacking the Router Back View Unstacking the Router Unstacking the RouterOL-9558-01 Troubleshooting Contacting Your Cisco ResellerRecovering a Lost Password Determining the Configuration Register ValueConfiguration register is 0x2102 815# Resetting the Router Press Return. The following prompt appearsPrompt changes to the privileged Exec prompt Resetting the Password Resetting the Configuration Register ValueProblem Solving OK LED DiagnosticsTroubleshooting WICs and Cables Number of Blinks MeaningExample WIC-4ESW Troubleshooting the Power System Symptom Possible Causes Technical Specifications Operating Specifications Cabling Specifications Ethernet CablesEthernet Network Cabling Guidelines 10BASE-T 100BASE-TXSignal RJ-45 Pin DB-9 Pin DB-25 Pin Console Cable and AdapterOL-9558-01 Safety Warnings Opening the Chassis Figure C-1 Removing the Chassis Screws Installing and Removing a Dimm Locating ModulesRemoving a Dimm Release the latches Remove the DimmInstalling a Dimm Insert the Dimm Latches rotate to closed positionInstalling a VPN Module Screw StandoffFigure C-7 VPN Module Location Figure C-9 Retention Clip Location Figure C-10 Aligning the Retention Clip Center Post Figure C-11 Attaching the Retention Clip to the Motherboard Figure C-12 Securing the Standoff to the Router Motherboard Closing the Chassis Figure C-13 Attaching the Router Cover NumericsC IN-1ETH COL LED IN-2Dimm C-4 IN-3IN-4