Cisco Systems 474, 274 manual Temperature

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Appendix B Maintaining the Wide Area Virtualization Engine

Maintaining Your Site Environment

Temperature, page B-2

Humidity, page B-3

Altitude, page B-3

Dust and Particles, page B-4

Corrosion, page B-4

Electrostatic Discharge, page B-4

Electromagnetic and Radio Frequency Interference, page B-5

Magnetism, page B-5

Shock and Vibration, page B-6

Power Source Interruptions, page B-6

Temperature

Temperature extremes can cause a variety of problems, including premature aging and failure of chips or mechanical failure of devices. Extreme temperature fluctuations can cause chips to become loose in their sockets and can cause expansion and contraction of disk drive platters, resulting in read or write data errors.

To minimize the negative effects of the temperature on system performance, follow these guidelines:

Ensure that the system is operated in an environment no colder than 50 °F (10 °C) or hotter than 95 °F (35 °C).

Ensure that the system has adequate ventilation. Do not place it within a closed-in wall unit or on top of cloth, which can act as insulation. Do not place it where it will receive direct sunlight, particularly in the afternoon. Do not place it next to a heat source of any kind, including heating vents during winter.

Adequate ventilation is particularly important at high altitudes. System performance may not be optimum when the system is operating at high temperatures as well as high altitudes.

Make sure that all slots and openings on the system remain unobstructed, especially the fan vent on the back of the system.

 

Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide

B-2

OL-17739-01

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Contents November Page Page Page N T E N T S Wave Inline Network Adapter Altitude Viii Preface PurposeAudience OrganizationChapter Title Description Conventions Convention DescriptionXii Xiii Xiv Preface Xvi Xvii Related Documentation XviiiXix OL-17739-01 Introducing the Cisco Wide Area Virtualization Engine Supported ProductsHardware Features Front Panel Controls and LEDsLocation of Ports and Connectors Color State DescriptionBack Panel LEDs and Connectors Ethernet Port Connector Console Port Serial Connector Preparing to Install the Wide Area Virtualization Engine Safety WarningsOL-17739-01 OL-17739-01 Safety Guidelines General PrecautionsOL-17739-01 System Reliability Considerations Protecting Against Electrostatic Discharge OL-17739-01 Installing the Wide Area Virtualization Engine Installing the Wave Appliance on a Tabletop Installing the Wave Appliance on a WallWAVE-274 and WAVE-474 Appliance Mounting Sleeve Attaching the Mounting Sleeve Installing the Wave Appliance in an Equipment Rack Rack-Mounting ConsiderationsConnecting Cables Connecting Power and Booting the SystemRack Requirements Checking the LEDs Removing or Replacing a Wave ApplianceOL-17739-01 Wave Inline Network Adapter Inline Network Adapter DescriptionOL-17739-01 Ports and LED Indicators LEDs State DescriptionInline Network Adapter Cabling Requirements Connection Required CableConnection Required Cable Cable Requirements for Wave Connections Using Fast Ethernet Wave Inline Network Adapter Mgmt WAN Cabling Between Two Inline WAVEs OL-17739-01 Troubleshooting the System Hardware Identifying System Problems Checking Connections and Switches Troubleshooting the Ethernet Controller Network Connection ProblemsEthernet Controller Troubleshooting Chart Ethernet Controller Problem ActionsUndetermined Problems Problem-Solving Tips Symptoms and Solutions Symptom Cause and Action See the Undetermined Problems section on Symptom FRU or Action Power-On Self Test Post Post OverviewPost Numeric Codes and Text Messages Control Panel Message Description Power-On Self Test Post Interpreting Post Diagnostic Front Panel LEDs and Beep Codes Post Diagnostic Front Panel LEDs and Beep Codes OL-17739-01 Post Diagnostic Front Panel LEDs and Beep Codes OL-17739-01 Appliance Specifications Specification DescriptionA-4 Specification Description Inline Adapter Specifications Maintaining the Wide Area Virtualization Engine Maintaining Your Site EnvironmentTemperature Humidity AltitudeDust and Particles CorrosionElectrostatic Discharge Electromagnetic and Radio Frequency Interference MagnetismPower Source Interruptions Shock and VibrationUsing Power Protection Devices Surge ProtectorsUninterruptible Power Supplies Line ConditionersD E IN-2 IN-3 IN-4