DS R™ Installer/User Guide For models: DSR800 DSR1010 DSR2010 DSR4010
INSTRUCTIONS This symbol is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. DANGEROUS VOLTAGE This symbol is intended to alert the user to the presence of uninsulated dangerous voltage within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. POWER ON This symbol indicates the principal on/off switch is in the on position.
DSR™ Installer/User Guide Avocent, the Avocent logo, The Power of Being There, DSR, OutLook, AutoView, DSView and OSCAR are trademarks or registered trademarks of Avocent Corporation or its affiliates. All other marks are the property of their respective owners. © 2003 Avocent Corporation. All rights reserved.
USA Notification Warning: Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Note: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
Table of Contents Chapter 1: Product Overview Features and Benefits . . . . . . . . . . . . . . . . . . . . . . . . . 3 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Chapter 2: Installation Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Installing the DSR Appliance . . . . . . . . . . . . . . . . . 13 Chapter 3: Local Port Operation Controlling Your System at the Local Port . . . . . . 23 Viewing and Selecting Ports and Servers . . . . . . . .
1 Product Overview Contents Features and Benefits . . . . . . . . . . . . . . . . . . . . . . . . 3 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 1: Product Overview 3 Chapter 1: Product Overview Features and Benefits Avocent’s DSR™ appliances combine analog and digital technology to provide flexible, centralized control of data center servers. This solution provides enterprise customers with a significant reduction of cable volume, secure remote access and flexible server management from anywhere at anytime.
4 DSR Installer/User Guide Access the DSR via network connection No special software or drivers are required on the attached, or host, computers. Users access the DSR appliance and all attached systems via Ethernet from a PC running the DSViewTM application residing on the user PC. User PCs can be located anywhere a valid network connection exists. The DSR appliance can be configured on a separate network from your data network, allowing access to your servers even if your applications network is down.
Chapter 1: Product Overview DSR2010 TCP/IP Analog User (OSCAR) Figure 1.
6 DSR Installer/User Guide DSR 800 Number of servers Digital sessions/ output Analog user 8 1 1 DSR 1010 100-240V , 1.0A, 50-60 Hz LAN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 16 1 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 16 2 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 16 4 1 DSR 2010 LAN DSR 4010 LAN Figure 1.
Chapter 1: Product Overview 7 Rack mount safety considerations • Elevated Ambient Temperature: If installed in a closed rack assembly, the operation temperature of the rack environment may be greater than room ambient. Use care not to exceed the rated maximum ambient temperature of the appliance. • Reduced Air Flow: Installation of the equipment in a rack should be such that the amount of airflow required for safe operation of the equipment is not compromised.
8 DSR Installer/User Guide
2 Installation Contents Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Installing the DSR Appliance . . . . . . . . . . . . . . . . .
Chapter 2: Installation 11 Chapter 2: Installation The DSR system requires that the DSView, DSAdmin and DSAuth software be installed prior to use. DSView is the application that allows a user to view and control a server attached to the DSR system. DSAdmin is used to configure and maintain the system. DSAuth is a Windows NT or 2000 service used to prevent unauthorized access to the DSR system. More information on the DS Management Software suite can be found in your DSView Installer/ User Guide.
12 DSR Installer/User Guide Verification of Ethernet/computer connections DSR appliance The front panel of the DSR features two LEDs describing the Ethernet connection. The top green LED is the Link indicator. It will illuminate when a valid connection to the network is established and blink when there is activity on the port. The lower amber LED, labeled 100M, will indicate that you are communicating at the 100 Mb rate.
Chapter 2: Installation 13 DSR2010 Authentication Services (DSAdmin) TCP/IP Analog User (OSCAR) Digital User (DSView) Figure 2.1: The DSR in a Network Configuration Installing the DSR Appliance The following diagram illustrates one possible configuration for your DSR appliance. Follow the detailed instructions to successfully install your DSR appliance.
14 DSR Installer/User Guide Network Digital User Configuration Port for updating firmware DSR1010 Appliance LAN KVM Connections Power Cord ARI Ports 1-16 CAT 5 Cable Servers 2-16 Analog User DSRIQ Module PS/2, USB, Sun and serial adaptors are available Server 1 Figure 2.2: Basic DSR Configuration WARNING: To reduce the risk of electric shock or damage to your equipment- Do not disable the power cord grounding plug. The grounding plug is an important safety feature.
Chapter 2: Installation 15 To install the DSR hardware: 1. Remove the DSR appliance from the packing material. 2. Connect a terminal or PC running terminal emulation software (such as HyperTerminal®) to the Configuration port on the back panel of the DSR appliance using the supplied null modem cable. The terminal should be set to 9600 baud, 8 bits, 1 stop bit, no parity and no flow control. 3. Plug the supplied power cord into the back of the DSR appliance and then into an appropriate power source.
16 DSR Installer/User Guide 3. Select option 2 and specify if you are using a static or BootP IP address. Avocent recommends using a static IP address for ease of configuration. If you are using a BootP address, please configure your BootP server to provide an IP address to the DSR appliance, skip step 4 and continue to the next procedure. 4. Select options 3-5 from the Terminal Applications menu, in turn, to finish configuring your DSR for IP address, netmask and default gateway.
Chapter 2: Installation 17 To connect a DSRIQ module to each server: 1. Locate a DSRIQ for your DSR appliance. 2. Attach the appropriately color-coded ends to the keyboard (violet), monitor (blue) and mouse (green) ports on the first server you will be connecting to this DSR appliance. 3. Attach one end of the CAT 5 cabling that will run from your DSRIQ to the DSR appliance to the RJ-45 connector on the DSRIQ. 4.
18 DSR Installer/User Guide Adding a legacy KVM switch You can add your legacy KVM switches to the DSR appliance for better integration into your existing configuration. In a cascaded system, each ARI port will accommodate up to 24 servers.
Chapter 2: Installation 19 4. Attach the keyboard, monitor and mouse connectors of the DSRIQ module to a user port on your legacy KVM switch. 5. Connect the servers to your legacy KVM switch according to the instructions included with the device. 6. Power cycle the legacy KVM switch to enable the cascade code. 7. Repeat steps 2-6 for all legacy KVM switches you want to attach to your system as cascading switches. To connect and power up your DSR: 1.
20 DSR Installer/User Guide
3 Local Port Operation Contents Controlling Your System at the Local Port . . . . . . 23 Viewing and Selecting Ports and Servers . . . . . . . . 23 Navigating OSCAR . . . . . . . . . . . . . . . . . . . . . . . . . 25 Configuring OSCAR . . . . . . . . . . . . . . . . . . . . . . . . 27 Assigning Device Types . . . . . . . . . . . . . . . . . . . . . . 29 Changing the Display Behavior . . . . . . . . . . . . . . . 31 Controlling the Status Flag . . . . . . . . . . . . . . . . . . .
Chapter 3: Local Port Operation 23 Chapter 3: Local Port Operation Controlling Your System at the Local Port All DSR models include a local port on the back of the appliance. This port allows you to connect a keyboard, monitor and mouse to the appliance for direct access. The DSR uses OSCAR®, Avocent’s On-Screen Configuration and Activity Reporting interface, which has intuitive menus to configure your system and select computers.
24 DSR Installer/User Guide Viewing the status of your DSR system The status of servers in your system is indicated in the far right columns of the Main dialog box. The following table describes the status symbols. OSCAR Status Symbols Symbol Description (green circle) Server connected, powered up and the DSRIQ is online. Connected server is powered down or is not operating properly and the DSRIQ is offline. Connected switch is online. Connected switch is offline or not operating properly.
Chapter 3: Local Port Operation 25 To disconnect from a server or serial device: Press Print Screen and then Alt+Ø. This leaves the user in a free state, with no server or serial device selected. The status flag on your desktop displays Free. Soft switching Soft switching is the ability to switch servers using a hotkey sequence. You can soft switch to a server by pressing Print Screen and then typing the first few characters of its name or number.
26 DSR Installer/User Guide OSCAR Navigation Basics (continued) This Keystroke Does This Escape Closes the current dialog box without saving changes and returns to the previous one. If the Main dialog box is displayed, pressing Escape closes OSCAR and displays a status flag if status flags are enabled. See Controlling the Status Flag in this chapter for more information. In a message box, it closes the pop-up box and returns to the current dialog box.
Chapter 3: Local Port Operation 27 Configuring OSCAR You can configure your DSR system from the Setup menu within OSCAR. Select the Names button when initially setting up your DSR system to identify servers by unique names. Select the other setup features to manage routine tasks for your servers from the OSCAR menu.
28 DSR Installer/User Guide Assigning server or serial device names Use the Names dialog box to identify servers or serial devices by name rather than by port number. The Names list is always sorted by port order. You can toggle between displaying the name or the EID number of each DSRIQ, so even if you move the module/server/serial device to another ARI port, the name and configuration will be recognized by the appliance.
Chapter 3: Local Port Operation 29 Figure 3.4: Name Modify Dialog Box 2. Type a name in the New Name box. Names of servers or serial devices may be up to 15 characters long. Legal characters include: A-Z, a-z, Ø-9, space and hyphen. 3. Click OK to transfer the new name to the Names dialog box. Your selection is not saved until you click OK in the Names dialog box. 4. Repeat steps 1-3 for each server or serial device in the system. 5. Click OK in the Names dialog box to save your changes.
30 DSR Installer/User Guide To access the Devices dialog box: 1. If OSCAR is not open, press Print Screen. The Main dialog box will appear. 2. Click Setup - Devices. The Devices dialog box appears. NOTE: The Modify button will only be available if a configurable switch is selected. Figure 3.5: Devices Dialog Box When the DSR discovers a cascade switch, you will notice the numbering format change from being an ARI port only to [ARI port]-[switch port] to accommodate each server under that switch.
Chapter 3: Local Port Operation 31 Figure 3.6: Device Modify Dialog Box 3. Choose the number of ports supported by your switch and click OK. 4. Repeat steps 1–3 for each port requiring a device type to be assigned. 5. Click OK in the Devices dialog box to save settings. NOTE: Changes made in the Device Modify dialog box are not saved until you click OK in the Devices dialog box.
32 DSR Installer/User Guide Figure 3.7: Menu Dialog Box To choose the display order of servers: 1. Select Name to display servers alphabetically by name. —or— Select EID to display servers numerically by EID number. —or— Select Port to display servers numerically by port number. 2. Click OK. Depending on the display method selected, the corresponding button will be depressed in the Main dialog box. To set a Screen Delay Time for OSCAR: 1.
Chapter 3: Local Port Operation 33 Controlling the Status Flag The status flag displays on your desktop and shows the name or EID number of the selected server or the status of the selected port. Use the Flag dialog box to configure the flag to display by server name or EID number, or to change the flag color, opacity, display time and location on the desktop.
34 DSR Installer/User Guide 3. Select a flag color in Display Color. The following flag colors are available: • Flag 1 - Grey flag with black text • Flag 2 - White flag with red text • Flag 3 - White flag with blue text • Flag 4 - White flag with violet text 4. In Display Mode, select Opaque for a solid color flag or select Transparent to see the desktop through the flag. 5. To position the status flag on the desktop: a. Click Set Position to gain access to the Position Flag screen.
Chapter 3: Local Port Operation 35 Figure 3.10: Broadcast Dialog Box NOTE: Broadcasting Keystrokes - The keyboard state must be identical for all servers receiving a broadcast to interpret keystrokes identically. Specifically, the Caps Lock and Num Lock modes must be the same on all keyboards. While the appliance attempts to send keystrokes to the selected servers simultaneously, some servers may inhibit and thereby delay the transmission.
36 DSR Installer/User Guide To turn broadcasting off: From the Commands dialog box, clear the Broadcast Enable checkbox. Using Scan Mode In scan mode, the DSR appliance automatically scans from port to port (server to server). You can scan up to 16 servers, specifying which servers to scan and the number of seconds that each server will display. The scanning order is determined by placement of the server in the list. The list is always shown in scanning order.
Chapter 3: Local Port Operation 37 -orTo add a server in the midst of an existing list, place your cursor in the line below where you want to insert a new server and press Insert. 4. Type the first few characters of a server name or port number to scan. The first matching server will appear in the line. -orTo move through the list, press the following keyboard commands in the Name, Port or Time column to move through the list of servers available to scan. a.
38 DSR Installer/User Guide Figure 3.12: Commands Dialog Box 3. Select Scan Enable in the Commands dialog box. 4. Click X to close the Commands dialog box. NOTE: Scanning will begin as soon as the scan button is checked. To cancel scan mode: 1. Select a server if OSCAR is open. -orMove the mouse or press any key on the keyboard if OSCAR is not open. Scanning will stop at the currently selected server. -orIf OSCAR is not open, press Print Screen. The Main dialog box will appear. 2. Click Commands.
Chapter 3: Local Port Operation 39 NOTE: If a password has been previously set, you will have to enter the password before you can access the Security dialog box. To access the Security dialog box: 1. If OSCAR is not open, press Print Screen. The Main dialog box will appear. 2. Click Setup - Security. The Security dialog box appears. Figure 3.13: Security Dialog Box To set or change the password: 1. Single-click and press Enter or double-click in the New text box. 2.
40 DSR Installer/User Guide 3. Type the number of minutes for Inactivity Time (from 1-99) to delay activation of password protection and the screen saver feature. 4. For Mode, select Energy if your monitor is ENERGY STAR® compliant; otherwise select Screen. CAUTION: Monitor damage can result from the use of Energy mode with monitors not compliant with ENERGY STAR®. 5. (Optional) Click Test to activate the screen saver test which lasts 10 seconds then returns you to the Security dialog box. 6.
Chapter 3: Local Port Operation 41 CAUTION: Monitor damage can result from the use of Energy Mode with monitors not compliant with ENERGY STAR®. 5. (Optional) Click Test to activate the screen saver test which lasts 10 seconds then returns you to the Security dialog box. 6. Click OK. NOTE: Activation of the screen saver mode disconnects the user from a server; no server is selected. The status flag displays Free. To exit the screen saver mode: Press any key or move your mouse.
42 DSR Installer/User Guide NOTE: If a DSRIQ is moved to a different server, the keyboard country code will need to be reset. See Appendix E for information on emulating certain Sun keys using a PS/2 keyboard and special considerations for Japanese and Korean Sun USB keyboards. NOTE: Only local users can view or change keyboard country code settings. To set the keyboard country code for Sun servers: 1. If OSCAR is not open, press Print Screen. The Main dialog box will appear. 2.
Chapter 3: Local Port Operation 43 Commands to Manage Routine Tasks for Your Servers Feature Purpose Broadcast Enable Begin broadcasting to your servers. Configure a server list for broadcasting under the Setup dialog box. Scan Enable Begin scanning your servers. Set up a server list for scanning in the Setup dialog box. User Status View and disconnect users. Reset PS/2 Re-establish operation of PS/2 keyboard and mouse.
44 DSR Installer/User Guide Viewing and Disconnecting User Connections You can view and disconnect users through the User Status dialog box. The username (U) will always be displayed; however, you can display either the server name or EID number to which a user is connected. If there is no user currently connected to a channel, the user field will be blank and the server field will display Free. To view current user connections: 1. If OSCAR is not open, press Print Screen.
Chapter 3: Local Port Operation 45 Figure 3.17: Disconnect Dialog Box 4. Click OK to disconnect the user and return to the User Status dialog box. -orClick X or press Escape to exit the dialog box without disconnecting a user. NOTE: If the User Status list has changed since it was last displayed, the mouse cursor will turn into an hourglass as the list is automatically updated. No mouse or keyboard input will be accepted until the list update is complete.
46 DSR Installer/User Guide b. Click X to close the message box. -orClick X or press Escape to exit without sending a reset command to the PS/2 mouse and keyboard. Displaying Version Information OSCAR enables you to display the version number of the DSR firmware and any auxiliary devices connected to the DSR, as well as display keyboard and mouse information for the currently selected server. This information facilitates system troubleshooting and support.
Chapter 3: Local Port Operation 47 Figure 3.19: Digital Version Dialog Box 4. Click DSRIQ (see Figure 3.18) to view individual DSRIQ version information. The DSRIQ Selection dialog box appears. Figure 3.20: DSRIQ Selection Dialog Box 5. Select a DSRIQ to view and click the Version button. The DSRIQ Version dialog box appears. For more information on loading firmware, see Appendix A.
48 DSR Installer/User Guide Figure 3.21: DSRIQ Version Dialog Box 6. Click X to close the DSRIQ Version dialog box.
4 Terminal Operations Contents Accessing the Terminal Applications Menu . . . . . .
Chapter 4: Terminal Operations 51 Chapter 4: Terminal Operations Accessing the Terminal Applications Menu Each individual DSR may be configured at the appliance level through the Configuration port on the back of the appliance. All terminal commands are accessed through a terminal or PC running terminal emulation software. To access the Terminal Applications menu: 1.
52 DSR Installer/User Guide When a DSR appliance is added to the database with DSAdmin, the appropriate DSAuth server certificate is added to the DSR automatically. If DSAuthentication cannot contact the DSR to add the certificate, an error message is displayed and the DSR is not added to the database. When the last reference to a DSR is removed from the database, the DSAuth server certificate is removed from the DSR, which allows the DSR to be moved from one DSAuth server to another.
Chapter 4: Terminal Operations 53 Video Session Terminated - Displays the user who terminated the session, the user who was terminated, port and channel number Local Port Viewing Started - Displays the local port Local Port Viewing Stopped - Displays the local port Local Port Viewing Terminated - Displays user who terminated the session and the local port Image Upgrade Started - Displays the user who initiated the upgrade, the type of image being upgraded and the current and new image versions DSRIQ Added
54 DSR Installer/User Guide Enable Debug Messages This menu option allows you to configure the DSR to display messages regarding the status of the DSR appliance. Once you select the level of detail you wish to receive, the DSR will begin to display information on your Terminal Screen. When you are finished viewing, press any key to exit this mode. Set/Change Password The DSR can be set to a secure mode where the Terminal Applications menu cannot be accessed without first entering a password.
Appendices Contents Appendix A: FLASH Upgrades . . . . . . . . . . . . . . . . 57 Appendix B: Using DSRIQ-SRL Modules . . . . . . . 61 Appendix C: UTP Cabling . . . . . . . . . . . . . . . . . . . 66 Appendix D: Technical Specifications . . . . . . . . . . 68 Appendix E: Sun Advanced Key Emulation . . . . . 70 Appendix F: Technical Support . . . . . . . . . . . . . . .
Appendices 57 Appendices Appendix A: FLASH Upgrades The DSRIQ module is unavailable while an upgrade is in progress. When an upgrade is initiated, any current connection to the server via the DSRIQ module will be terminated. If you are using DSAuth or DSView software, a server experiencing a DSRIQ firmware update may not display, or may display as disconnected. The server will appear normally when the FLASH update is completed.
58 DSR Installer/User Guide 6. Enter the IP address of your TFTP server and press Enter. 7. Enter the name of the file that you downloaded from the Avocent site. 8. Confirm the TFTP download by typing a y or yes and pressing Enter. 9. The DSR will verify that the file you downloaded is valid. Next, you will be prompted to confirm the upgrade. Type a y or yes and press Enter to confirm. 10. The DSR will begin the FLASH upgrade process. On-screen indicators will display the upgrade progress.
Appendices 59 Figure A.2: DSRIQ Selection Dialog Box 4. Select a DSRIQ to upgrade and click the Version button. The DSRIQ Version dialog box appears. Figure A.3: DSRIQ Version Dialog Box 5. Click the Load Firmware button. The DSRIQ Load dialog box appears.
60 DSR Installer/User Guide Figure A.4: DSRIQ Load Dialog Box 6. Click OK to initiate the upgrade.
Appendices 61 Appendix B: Using DSRIQ-SRL Modules The DSRIQ-SRL module is a serial-to-VGA converter which permits VT100capable devices to be viewed from the DSR local port or by using the DSView software. The actual serial data is not accessed, but is merely displayed. All serial data coming from the target device is displayed in a VT100 window, placed into a video buffer and sent to the DSR appliance as though it came from a VGA server.
62 DSR Installer/User Guide • DSR/CD Mode - This option allows you to control how the DSR and CD lines operate. Available options are Always on and Toggle. When in Toggle mode, DSR and CD lines are turned off for one-half second and then turned on each time a module is selected or deselected. The default value is Always on. • Enter Sends - This option enables you to specify the keys that are transmitted when Enter is pressed.
Appendices 63 • History Key Sequence - This option allows you to define the key combination that enables History mode. The default key sequence is Ctrl-F9. • Clear History Key Sequence - This option allows you to define the key combination that clears the history buffer while in History mode. The default key sequence is Ctrl-F11. • Break Key Sequence - This option allows you to configure the key combination that generates a break condition. The default key sequence is Alt-B.
64 DSR Installer/User Guide 5. Repeat steps 3 and 4 to configure additional macros. 6. When finished, press Enter to return to the previous screen. Using History mode History mode allows you to examine the contents of the history buffer, which contains the events that have occurred. The DSRIQ-SRL maintains a buffer containing 240 lines minimum, or 10 screens, of output.
Appendices 65 DSRIQ-SRL pinouts The following table lists the pinouts for the DSRIQ-SRL module and is provided for your reference.
66 DSR Installer/User Guide Appendix C: UTP Cabling The following information is intended to brief you on various aspects of connection media. The performance of a DSR system depends on high quality connections. Poor quality or poorly installed or maintained cabling can diminish DSR system performance. NOTE: This appendix is for information purposes only. Please consult with your local code officials and/or cabling consultants prior to any installation.
Appendices 67 DSR Wiring Standards (continued) Pin EIA/TIA 568A EIA/TIA 568B 5 white/blue white/blue 6 orange green 7 white/brown white/brown 8 brown brown Cabling installation, maintenance and safety tips The following is a list of important safety considerations that should be reviewed prior to installing or maintaining your cables: • Keep all CAT 5 runs to a maximum of 10 meters each.
68 DSR Installer/User Guide Appendix D: Technical Specifications DSR Product Specifications Server Ports Number Types Connectors Sync Types Plug and Play Video Resolution Supported Cabling Configuration Port Number Type Connector Network Connection Number Type Connector Local Port Number Type Connectors Dimensions Dimensions (H x W x D) Weight Heat Dissipation Airflow AC-input Power AC-input Range AC-input Current Rating DSR800: 8 DSR1010, 2010, 4010: 16 DSRIQ-PS/2, DSRIQ-USB, DSRIQ-VSN (Sun VGA), DSRI
Appendices 69 DSR Product Specifications Dimensions (continued) AC-input Cable AC Frequency Temperature Humidity Agency Approvals Agency Approvals User Consoles Type 18 AWG three-wire cable, with a three-lead IEC-320 receptacle on the power supply end and a country dependant plug on the power resource end 50 - 60 Hz autosensing 32-104 degrees Fahrenheit (Ø-40 degrees Celsius) operating; -4-158 degrees Fahrenheit (-20-70 degrees Celsius) nonoperating 10-95% noncondensing EN55022 Class A, EN55024, EN6200-
70 DSR Installer/User Guide Appendix E: Sun Advanced Key Emulation Certain keys on a normal Type 5 (US) Sun keyboard can be emulated by key press sequences on a PS/2 keyboard. To enable Sun Advanced Key Emulation mode and use these keys, press and hold Ctrl+Shift+Alt and then press the Scroll Lock key. The Scroll Lock LED blinks. Use the indicated key in the following table as you would use the advanced keys on a Sun keyboard.
Appendices 71 For example: For Stop + A, press and hold Ctrl+Shift+Alt and press Scroll Lock, then F1 + A. These key combinations will work with the USB DSRIQ module (if your Sun system comes with a USB port) as well as the Sun DSRIQ module. With the exception of F12, these key combinations are not recognized by Microsoft Windows. Using F12 performs a Windows key press. When finished, press and hold Ctrl+Shift+Alt and then press the Scroll Lock key to toggle Sun Advanced Key Emulation mode off.
72 DSR Installer/User Guide Appendix F: Technical Support Our Technical Support staff is ready to assist you with any installation or operating issues you encounter with your Avocent product. If an issue should develop, follow the steps below for the fastest possible service: 1. Check the pertinent section of the manual to see if the issue can be resolved by following the procedures outlined. 2. Check our web site at www.avocent.
LIMITED WARRANTY Avocent Corporation warrants to the original retail purchaser that this product is and will be free from defects in materials and workmanship for a period of 24 months from the date of purchase. Additionally, all Avocent products carry an unconditional thirty-day satisfaction guarantee. If, for any reason, you are dissatisfied with the performance of this product, you may return it to the point of purchase for a refund of the purchase price (excluding shipping charges).
For Technical Support: Email: support@avocent.com www.avocent.com Avocent Corporation 4991 Corporate Drive Huntsville, Alabama 35805-6201 USA Tel: +1 256 430 4000 Fax: +1 256 430 4031 Avocent International Ltd.
