Cisco Systems 3120 manual Maintaining Your AVS, Maintaining Your Site Environment

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C H A P T E R 5

Maintaining Your AVS 3120

Proper use of preventive maintenance procedures can ensure that the AVS 3120 operates properly and can minimize the need for time-consuming service procedures. This chapter contains maintenance procedures that you should perform regularly.

This chapter includes the following major sections:

•Maintaining Your Site Environment, page 5-1

•Using Power Protection Devices, page 5-5

Maintaining Your Site Environment

An exhaust fan in the power supply cools the power supply and the AVS 3120 by drawing in air through various openings and blowing it out through the back panel. However, the fan might also draw dust and other particles into the AVS 3120, causing contaminant buildup, which increases the chassis internal temperature and interferes with the operation of various components.

To avoid these conditions, we recommend keeping your work environment clean to reduce the amount of dust and dirt around the AVS 3120 and to reduce the amount of contaminants drawn into it by the power supply fan.

This section discusses various environmental factors that can adversely affect AVS 3120 performance and longevity, and it covers these topics:

•Temperature

•Humidity

•Altitude

•Dust and Particles

•Corrosion

•Electrostatic Discharge

•Electromagnetic and Radio Frequency Interference

•Power Source Interruptions

Cisco AVS 3120 Application Velocity System Hardware Installation Guide

	OL-11805-01	5-1

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Contents Text Part Number OL-11805-01 Corporate HeadquartersPage N T E N T S Removing or Replacing an AVS 3120 Altitude OL-11805-01 Audience PrefaceRelated Documentation OrganizationChapter/Appendix Description Bewaar Deze Instructies ConventionsAvvertenza Importanti Istruzioni Sulla Sicurezza Warnung Wichtige SicherheitshinweiseGuarde Estas Instruções Aviso Instruções Importantes DE SegurançaGEM Disse Anvisninger Xiii Cisco.com Obtaining DocumentationProduct Documentation DVD Cisco Product Security Overview Documentation FeedbackOrdering Documentation Product Alerts and Field Notices Reporting Security Problems in Cisco ProductsCisco Technical Support & Documentation Website Obtaining Technical AssistanceDefinitions of Service Request Severity Submitting a Service RequestObtaining Additional Publications and Information Xix OL-11805-01 Introduction Product OverviewFront Panel Features System Hardware FeaturesRear Panel Features Ports and ConnectorsIndicator Color Description Ethernet ConnectorsRJ-45 Cables Parameter Setting Pin Signal DefinitionConsole Port RJ-45 to DB-9 or DB-25 Adapter Signal RJ-45 Pin DB-9 /DB-25 PinOL-11805-01 Safety Preparing for InstallationPreparing for Installation Safety Page Maintaining Safety with Electricity General PrecautionsProtecting Against Electrostatic Discharge Copper foil Preparing Your Site for InstallationGrounding the AVS Choosing a Site for InstallationEnvironmental Requirements Ensuring Overcurrent ProtectionCabling AC Power RequirementsPower Supply Guidelines Creating a Safe EnvironmentPrecautions for Rack-Mounting Required Tools and Equipment Installing the AVS Unpacking and Inspecting the AVS Installing Your AVSIf the Product is Damaged Attaching a Two-Post Rack Bracket to the AVS Attaching the Brackets to the Sides of the AVS Installing the AVS 3120 in a Two-Post Rack Installing the AVS 3120 on a Workbench or TabletopConnecting Cables Console Connection Connecting AC PowerBooting with a Console Connected Booting the AVSEstablishing a Serial Console Connection Velocityshow interface Configuring Network SettingsYou can view the DNS settings by using the show dns command Setting the Time Checking the Front Panel LEDs Indicator Color State IndicatesRemoving or Replacing an AVS Checking the Basics Troubleshooting the AVS 3120 HardwareChecking Connections Maintaining Your Site Environment Maintaining Your AVSHumidity TemperatureAltitude Electromagnetic and Radio Frequency Interference Dust and ParticlesCorrosion Electrostatic DischargePower Source Interruptions Line Conditioners Using Power Protection DevicesUninterruptible Power Supplies Surge ProtectorsOL-11805-01 Environment SpecificationsDimensions and Weight PowerOL-11085-01 Apache License Open Source License FilesAppendix B Open Source License Files Apache License END of Terms and Conditions OL-11805-01 D E IN-2 IN-3 IN-4

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