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Table of Contents
Troubleshooting
Related Manuals for Cisco Cisco Wide Area Virtualization Engine 274
Summary of Contents for Cisco Cisco Wide Area Virtualization Engine 274
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Page 1: Installation Guide
Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide November 2008 Americas Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 http://www.cisco.com Tel: 408 526-4000 800 553-NETS (6387) Fax: 408 527-0883 Text Part Number: OL-17739-01... - Page 2 Modifications to this product not authorized by Cisco Systems, Inc. could void the FCC approval and negate your authority to operate the product. The Cisco implementation of TCP header compression is an adaptation of a program developed by the University of California, Berkeley (UCB) as part of UCB’s public domain version of the UNIX operating system.
- Page 3 Network Registrar, PCNow, PIX, PowerPanels, ProConnect, ScriptShare, SenderBase, SMARTnet, Spectrum Expert, StackWise, The Fastest Way to Increase Your Internet Quotient, TransPath, WebEx, and the WebEx logo are registered trademarks of Cisco Systems, Inc. and/or its affiliates in the United States and certain other countries.
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Page 5: Table Of Contents
Installing the WAVE Appliance on a Tabletop Installing the WAVE Appliance on a Wall Installing the WAVE Appliance in an Equipment Rack Connecting Cables Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 Front Panel Controls and LEDs Location of Ports and Connectors... - Page 6 Wide Area Virtualization Engine Hardware Specifications A P P E N D I X Appliance Specifications Inline Adapter Specifications Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide Network Connection Problems Ethernet Controller Troubleshooting Chart 5-12 POST Overview...
- Page 7 Maintaining the Wide Area Virtualization Engine A P P E N D I X Maintaining Your Site Environment Using Power Protection Devices N D E X Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 Temperature Humidity Altitude...
- Page 8 Contents Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide viii OL-17739-01...
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Page 9: Preface
After completing the hardware installation procedures covered in this guide, you will then use the appropriate related publications to configure your system. (See the on page Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 xviii.) “Related Documentation” section... -
Page 10: C H A P T E R 3 Installing The Wide Area Virtualization Engine
This guide includes the following chapters: Chapter Chapter 1 Chapter 2 Chapter 3 Chapter 4 Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide Title Introducing the Cisco Wide Area Virtualization Engine Preparing to Install the Wide Area Virtualization Engine... -
Page 11: A P P E N D I X B Maintaining The Wide Area Virtualization Engine
Command descriptions use the following conventions: Convention boldface font italic font {x | y | z} [x | y | z] string Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 Title Troubleshooting the System Hardware Wide Area Virtualization Engine Hardware... - Page 12 Means reader be careful. You are capable of doing something that might result in Caution equipment damage or loss of data. Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide Description Terminal sessions and information the system displays are font.
- Page 13 Use the statement number provided at the end of each warning to locate its translation in the translated safety warnings that accompanied this device. Statement 1071 SAVE THESE INSTRUCTIONS Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide xiii OL-17739-01...
- Page 14 Preface Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01...
- Page 15 Preface Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01...
- Page 16 Preface Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01...
- Page 17 Preface Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide xvii OL-17739-01...
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Page 18: Related Documentation
Cisco Wide Area Application Services API Reference • Cisco WAAS Installation and Configuration Guide for Windows on a Virtual • Blade The documentation for this product also includes the following hardware-related documents: Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide xviii Preface OL-17739-01... - Page 19 Cisco documents, see the monthly What’s New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at: http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01...
- Page 20 Preface Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01...
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Page 21: Chapter 1 Introducing The Cisco Wide Area Virtualization Engine
WAVE-474 appliances, unless specifically noted otherwise. Supported Products The WAVE-274 and WAVE-474 appliances support Cisco Wide Area Application Services (WAAS) software version 4.1.1 and later releases. Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 C H A P T E R... -
Page 22: Hardware Features
Front Panel Controls and LEDs Figure 1-1 Figure 1-1 Power button LEDs Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide Chapter 1 Introducing the Cisco Wide Area Virtualization Engine shows the front panel controls and LEDs. WAVE-274 and WAVE-474 Front Panel 2 USB 2.0 ports (not supported) - Page 23 This section contains the following topics: Ethernet Port Connector, page 1-5 • Console Port Serial Connector, page 1-6 • Figure 1-2 Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 describes the front panel LEDs and their functions. Color State Description Green Appliance is powered on.
- Page 24 BIOS boot process for troubleshooting purposes. After the BIOS boots, all input and output for the appliance is by way of the serial console port. Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide Chapter 1 Introducing the Cisco Wide Area Virtualization Engine...
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Page 25: Ethernet Port Connector
100BASE-TX, or 1000BASE-T) and duplex mode (full duplex or half duplex) of the network and automatically operate at that rate and mode. You do not have to set any jumpers or configure the controller. Figure 1-3 Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 State Description... - Page 26 Console Port Serial Connector Note The WAVE appliance has two serial ports on the rear panel. Be sure to connect your console cable only to the port labeled COM1 or CONSOLE. Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01...
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Page 27: Chapter 2 Preparing To Install The Wide Area Virtualization Engine
Before you install the WAVE appliance, observe the following safety warnings. Only trained and qualified personnel should be allowed to install, replace, or Warning service this equipment. Statement 1030 Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 C H A P T E R... -
Page 28: Safety Warnings
Do not work on the system or connect or disconnect cables during periods of Warning lightning activity. Statement 1001 Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide Chapter 2 Preparing to Install the Wide Area Virtualization Engine... - Page 29 Ultimate disposal of this product should be handled according to all national Warning laws and regulations. Statement 1040 Installation of the equipment must comply with local and national electrical Warning codes. Statement 1074 Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 Safety Warnings...
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Page 30: Safety Guidelines
Components inside these compartments should be serviced only by a trained and qualified service technician. Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide Chapter 2 Preparing to Install the Wide Area Virtualization Engine... - Page 31 These cables are equipped with three-prong plugs to help ensure proper grounding. Do not use adapter plugs or remove the grounding prong from a cable. Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 Safety Guidelines...
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Page 32: System Reliability Considerations
The appliance is powered down and the power cords are disconnected before • you open the air baffle cover. Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide Chapter 2 Preparing to Install the Wide Area Virtualization Engine... -
Page 33: Protecting Against Electrostatic Discharge
Do not leave the device where others can handle and possibly damage the • device. • Take additional care when handling devices during cold weather, because heating reduces indoor humidity and increases static electricity. Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 Safety Guidelines... - Page 34 Chapter 2 Preparing to Install the Wide Area Virtualization Engine Safety Guidelines Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01...
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Page 35: Installing The Wide Area Virtualization Engine
Read the installation instructions before connecting the system to the power Warning source. Statement 1004 Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 C H A P T E R Chapter 2, “Preparing to Install the Wide... -
Page 36: Installing The Wave Appliance On A Tabletop
See you consider the location requirements as described in the Appliance on a Tabletop” section on page Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide Chapter 3 Installing the Wide Area Virtualization Engine Figure 3-1 on page 3-3. - Page 37 Orient the mounting sleeve as desired and attach it to the mounting surface using Step 2 the fasteners provided or other appropriate fasteners. See Caution Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 WAVE-274 and WAVE-474 Appliance Mounting Sleeve Mounting surfaces vary widely. We recommend that you use the appropriate screws or other mounting solution for your type of surface.
- Page 38 Slide the WAVE appliance into the mounting sleeve as shown. See Step 3 page 3-4. Figure 3-3 Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide Chapter 3 Installing the Wide Area Virtualization Engine Attaching the Mounting Sleeve Inserting the WAVE Appliance into the Mounting Sleeve...
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Page 39: Installing The Wave Appliance In An Equipment Rack
Use safe practices when lifting. Caution Do not place any object weighing more than 110 lb (50 kg) on top of Caution rack-mounted devices. Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 Installing the WAVE Appliance in an Equipment Rack... -
Page 40: Rack Requirements
Power down the appliance before beginning the installation. Step 1 Attach shelf to rack rails with mounting hardware as shown in Step 2 Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide Chapter 3 Installing the Wide Area Virtualization Engine Figure 3-4. - Page 41 The shelf may be mounted upside down and will not loose any of its Note weight capacity. Place the chassis on the rack shelf. Step 3 Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 Installing the WAVE Appliance in an Equipment Rack Attaching the Rack Shelf...
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Page 42: Connecting Cables
The system should begin booting. Once the operating system boots, you are ready to initialize the basic software configuration. (See the software configuration guide for details.) Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide Chapter 3 shows the locations of the input and output connectors on your “Safety Guidelines”... -
Page 43: Checking The Leds
WAVE appliance and configure it using the same configuration parameters (IP address and so forth) that you used for the removed WAVE appliance. Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 While the WAVE appliance is powering up, the green power-on LED on the front of the WAVE appliance is on. - Page 44 Chapter 3 Installing the Wide Area Virtualization Engine Removing or Replacing a WAVE Appliance Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide 3-10 OL-17739-01...
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Page 45: Chapter 4 Wave Inline Network Adapter
VLANs. By default, the adapter operates on all inline-capable interfaces and VLANs. You can configure the inline redirection feature using the WAAS CLI or the WAAS Central Manager GUI. Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 C H A P T E R Table A-2 Appendix A, “Wide Area... - Page 46 WAVE appliance without being processed. For more information about configuring the inline network adapter, see the Cisco Wide Area Application Services Configuration Guide. Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01...
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Page 47: Ports And Led Indicators
Blinking 1000 Bypass Both the 100 and 1000 LEDs are Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 shows the 2-port inline network adapter port numbers, interface Port LAN0: Group 0 LAN interface describes the LEDs. -
Page 48: Inline Network Adapter Cabling Requirements
Switch to WAVE and WAVE to Router Switch to WAVE and WAVE to Switch Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide shows the cable requirements for WAVE appliance and non-WAVE Cable Requirements for WAVE Connections Using Gigabit Ethernet... - Page 49 When you are directly connecting two network devices that are different, such • as a switch and router, use a straight-through cable. Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 Inline Network Adapter Cabling Requirements Cable Requirements for WAVE Connections Using Gigabit...
- Page 50 On the WAN side of the connection, use the cable that is different from the • cable that you would use to connect the two network devices directly (as determined in Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide Chapter 4 Cable Requirements for WAVE Connections Using Fast Ethernet...
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Page 51: Installation Scenarios And Cabling Examples For Fast Ethernet Connections
When you connect two WAVE inline appliances to each other serially, always use Note a crossover cable between the two WAVE appliances. (See Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 Installation Scenarios and Cabling Examples for Fast Ethernet Connections... - Page 52 Cable type: Straight-through Connection: WAVE 2 to WAN router Fast Ethernet: WAVE 2 WAN0 (InlinePort 1/0/wan) Cable type: Crossover Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide WAVE1 WAVE2 Connection: WAVE 1 to WAVE 2 Fast Ethernet: WAVE1 WAN0...
- Page 53 Connection: WAVE 2 to WAN router Fast Ethernet: WAVE 2 WAN0 (InlinePort 1/0/wan) Cable type: Crossover Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 Installation Scenarios and Cabling Examples for Fast Ethernet Connections Router Connection: WAVE 1 to WAVE 2...
- Page 54 Chapter 4 WAVE Inline Network Adapter Installation Scenarios and Cabling Examples for Fast Ethernet Connections Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide 4-10 OL-17739-01...
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Page 55: Troubleshooting The System Hardware
WAVE-474 appliance. All faulty components can only be replaced by a qualified service technician. Once you have identified a faulty component, contact the Cisco Technical Assistance Center (TAC). Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 C H A P T E R... -
Page 56: Identifying System Problems
If you hear one or more beeps, find the beep code in the Diagnostic Front Panel LEDs and Beep Codes” section on page necessary, see the Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide Chapter 5 Table 5-10 on page “Checking Connections and Switches”... -
Page 57: Checking Connections And Switches
Power up the system. Step 6 Is the problem resolved? Yes. The connections were loose. You have fixed the problem. Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 Figure 1-1 for the location of front panel controls... -
Page 58: Troubleshooting The Ethernet Controller
Check the Ethernet controller LEDs on the device back panel. (See • Figure These LEDs indicate whether a problem exists with the connector, cable, or switch: Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide Chapter 5 1-2.) Troubleshooting the System Hardware “Obtaining... -
Page 59: Ethernet Controller Troubleshooting Chart
LED does not work. The network might be idle. Try sending data from this device. • Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 The Ethernet link status LED is on when the Ethernet controller receives a link pulse from the switch. -
Page 60: Undetermined Problems
Step 3 failure (power up the device and reconfigure it each time): Any non-Cisco devices • Surge suppressor device (on the device) • Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide Chapter 5 Troubleshooting the System Hardware OL-17739-01... -
Page 61: Problem-Solving Tips
• – – Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 If the problem goes away when you remove an adapter from the system, and replacing that adapter does not correct the problem, check the system board. -
Page 62: Symptoms And Solutions
Any component that is internal to the device must be serviced by trained and Caution qualified personnel. Contact your Cisco customer service representative. Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide Chapter 5 Has this configuration ever worked? - Page 63 Symptom Problems such as a broken cover latch or indicator LEDs not working. Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 Cause and Action Verify the following items: The IDE channel to which the CD-RW/DVD drive is attached (primary) is enabled in the configuration/setup utility program.
- Page 64 Symptom The amount of system memory displayed is less than the amount of physical memory installed. Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide 5-10 Chapter 5 Cause and Action Verify the following items: All cables are connected securely to the rear of the device.
- Page 65 Table 5-9 Software Problems Symptom Suspected software problem. Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 Cause and Action Correct any errors that are indicated by the LEDs (see the “Interpreting POST Diagnostic Front Panel LEDs and Beep Codes”...
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Page 66: Power-On Self Test (Post)
If you have a power-up password or administrator password set, you must enter Note the password and press Enter when prompted, before POST will continue. Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide 5-12 Chapter 5 Troubleshooting the System Hardware “POST Numeric Codes and Text Messages”... -
Page 67: Post Numeric Codes And Text Messages
163-Time & Date Not Set 163-Time & Date Not Set 164-Memory Size Error 164-Memory Size Error Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 Power-On Self Test (POST) Description System ROM or expansion board option ROM checksum. - Page 68 611-Primary Floppy Port Address Assignment Conflict 660-Display cache is detected unreliable 912-Computer Cover Has Been Removed Since Last System Startup Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide 5-14 Chapter 5 Troubleshooting the System Hardware Description RAM failure.
- Page 69 1801-Microcode Patch Error 2216-Powered USB cable not attached Invalid Electronic Serial Number Memory Parity Error Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 Power-On Self Test (POST) Description Front audio harness has been detached or unseated from motherboard.
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Page 70: Interpreting Post Diagnostic Front Panel Leds And Beep Codes
POST Diagnostic Front Panel LEDs and Beep Codes Activity Green Power LED On. Green Power LED flashes every two seconds. Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide 5-16 Description Keyboard failure while Network Server Mode enabled. - Page 71 2-second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved. Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 Beeps Possible Cause Processor thermal protection activated: A fan...
- Page 72 2-second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved. Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide 5-18 Beeps Possible Cause Power failure (power supply is overloaded).
- Page 73 2-second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved. Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 Beeps Possible Cause System board failure (ROM detected failure prior to video).
- Page 74 Beeps stop after fifth iteration but LEDs continue until problem is solved. System does not power on and LEDs are not flashing. Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide 5-20 Beeps Possible Cause Bad option card.
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Page 75: Appendix
WAVE-274 and WAVE-474 Features and Specifications Specification Microprocessor Memory Drives standard Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 provides a summary of the features and specifications of the Description Intel Core2 Duo E6400 Processor, 2.13-GHz •... - Page 76 WAVE-274 and WAVE-474 Features and Specifications (continued) Specification Size Weight Ports Power Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide Appendix A Wide Area Virtualization Engine Hardware Specifications Description Height: 3.94 in. (10.0 cm) • Depth: 15.0 in. (38.0 cm) •...
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Page 77: A P P E N D I X A Wide Area Virtualization Engine Hardware Specifications
3. Power consumption and heat output vary depending on the number and type of optional features installed and the power-management optional features in use. 4. BTU = British Thermal Unit. Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 Description Air temperature: •... -
Page 78: Inline Adapter Specifications
PCI voltage Weight Operating humidity Operating temperature Storage temperature Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide Appendix A Wide Area Virtualization Engine Hardware Specifications describes the inline network adapter technical and general Description Gigabit Ethernet, 1000BASE-T... -
Page 79: Appendix
This section discusses various environmental factors that can adversely affect system performance and longevity. Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 A P P E N D I X... -
Page 80: Temperature
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 Appendix B Maintaining the Wide Area Virtualization Engine... -
Page 81: Humidity
Each system is designed to operate at a maximum altitude of 6500 feet (2000 meters) and can be stored at a maximum altitude of 30000 feet (9144 meters). Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01... -
Page 82: Dust And Particles
ESD is a problem particularly in dry environments where the relative humidity is below 50 percent. To reduce the effects of ESD, you should observe the following guidelines: Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide Appendix B Maintaining the Wide Area Virtualization Engine “Temperature”... -
Page 83: Electromagnetic And Radio Frequency Interference
Hard disk drives should never be stored near magnetic sources such as the following: Monitors • TV sets • Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 Maintaining Your Site Environment... -
Page 84: Shock And Vibration
In general, do not allow the system to share a circuit with any of the following: – – – – – Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide Appendix B Copier machines Air conditioners Vacuum cleaners Space heaters Power tools Maintaining the Wide Area Virtualization Engine “Using Power... -
Page 85: Using Power Protection Devices
Surge protectors, however, do not offer protection against brownouts, which occur when the voltage drops more than 20 percent below the normal AC line voltage level. Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 Teletype machines... -
Page 86: Uninterruptible Power Supplies
Surge protectors should be used with all UPS systems, and the UPS system should be Underwriters Laboratories (UL) safety-approved. Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide Appendix B Maintaining the Wide Area Virtualization Engine... -
Page 87: I N D E X
(examples) CD/DVD drive problems CD/DVD drive activity LED Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 I N D E X connections cables power troubleshooting connectors and ports... - Page 88 LEDs hard disk drive problems hard disk drive activity LED hardware Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide IN-2 troubleshooting humidity maintenance guidelines I/O connectors inline network adapter cabling examples cabling requirements...
- Page 89 POST description 5-12 error codes 5-12 power connecting to system power on LED Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01 power-on self-test See POST power source interruptions preventing damage from power supplies using uninterruptible problem solving...
- Page 90 Ethernet controller network connections switches system hardware undetermined problems Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide IN-4 undetermined problems troubleshooting uninterruptible power supplies using vibration preventing damage warnings installation WAVE...