Avocent 1024 manuel d'utilisation

For T echnical Support: Avocent Corporation 4991 Corporate Drive Huntsville, Alabama 35805-6201 USA Tel: +1 256 430 4000 Fax: +1 256 430 4031 590-440-50 1B Avocent International Ltd. Avocent House, Shannon Free Zone Shannon, County Clare, Ireland Tel: +353 6 1 7 1 5 292 Fax: +353 6 1 4 7 1 87 1 Avocent Asia Pacifi c Singapore Branch Offi ce 1 00 [...]

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 m[...]

DSR ® 1024 Switch Installer/User Guide Avocent, the Avocent lo go, The Power of Being There, D SR and DSView are registered trademarks of Avocen t Corporation or its affiliates. All other marks are the property of their respective owners. © 2005 Avocent Corporation. All rights reserved.[...]

USA Notification Warning: Changes or modifi cations to this unit not expressly approve d by the party responsible for compliance could void the user’s authority to operate the equipment. Note: This equipment has be en test ed and found to comply wi th the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limi ts are[...]

iii List of Figures ................ ................ ................ ................ ............. ................ ................. .. vii List of Tables ............... ................ ................ ................ ............. ................ ................ ..... .. ix Chapter 1: Product Overview .. ......... ................ ......[...]

iv DSR1024 Switch Install er/User Guide About the DSR Explorer Window ....... .......................................... ........................................ ......... .. 22 Using the side navigation bar ....................... .................... .................... ................... ................ .2 3 Using the top option bar .........[...]

TABLE OF CONTENTS v Keyboard Layout Configuration ........ ................... .................... .................... .................... ........ 50 Display Version Information .......... ...... ................ .................... .................... .................... ........ 51 Rename DSRIQ ................. .................... ......[...]

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vii Figure 1.1: Example DSR1024 Switch Configuration .... .................... ................. .................... .......... 2 Figure 2.1: Basic DSR1024 Switch Configurati on ......... .......................... ................. ................... ..... 7 Figure 3.1: Avocent DSR Explorer Window ........ .................... ..................[...]

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ix Table 3.1: DSR Explorer Window Area Descriptio ns ................ ................. ................... ................. 22 Table 3.2: Viewing Appliance Information.................. .................... .................... .................... ........ 2 7 Table 4.1: Video Viewer Window Descriptions ......... .. .................... ........[...]

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1 CHAPTER 1 Product Overview Features and Benefits Avocent DSR ® switches combine analog and digital tech nology to provi de flexible, centralized control of data center servers and facilitat e the OA&M (operations, activation and maintenance) of remote branch offices where trained operators may be unavailable. They provide enterprise customer[...]

2 DSR1024 Switch Installer/User Guide Access the DSR1024 switch via network connection No special software or drivers are required on the attached, or client, computers. NOTE: The client connects to t he server housing the D SView ® management software using an Internet browser. For modem access, you must install D SR Remote Operations software in[...]

Chapter 1: Product Overview 3 Safety Precautions To avoid potential video and keyboard pro blems when using Avocent products: • If the building has 3-phase AC power, ensure th at the computer and monitor are on the same phase. For best results, they should be on the same circuit. To avoid potentially fatal shock hazard and possi ble damage to equ[...]

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5 CHAPTER 2 Installation DSR1024 Switch Connectivity The DSR1024 switching system requires connectivity to a server running th e DSView Server software. DSView 3 software allows a user to vi ew and control target devices (one at a time) attached to the DSR1024 switching system. For more information on the DSView 3 software, see the DSView Installer[...]

6 DSR1024 Switch Installer/User Guide Installation Overview The general procedure for setting up and install ing the DSR1024 switch is as follows: Setting up your network The DSR1024 switching system uses IP addresses to uniquely identify the sw itch and the target devices. The DSR1024 switch support s both Dyna mic Ho st Configuration Protocol (DH[...]

Target DSR1024 Switch DSView Telephon e Network Ethernet Server Modem DSRIQ Module SPC Power Control Device SPC Port Connection DSRIQ Internet Port CAT 5 Cable RJ-45 to DB-9 Adaptor Server Power Cord Analog User Power Transf ormer SETUP Port KVM Connections Connections Software Chapter 2: Installat ion 7 Figure 2.1: Basic DSR1024 Switch Configurati[...]

8 DSR1024 Switch Installer/User Guide Getting Started Be for e i nst al l in g y ou r DSR1024 sw itc h , r ef er to th e f oll ow ing li sts to ens ur e y ou h av e a ll i tem s t ha t shipped with the DSR 1 0 24 switch as well as other items necessary f or proper installation. Items supplied with the DSR1024 switch The following items are shipped [...]

Chapter 2: Installat ion 9 Connecting the DSR 1024 Switch Hardware To connect and power on your DSR1024 switch: 1. Power off the target devices that will be part of your DSR102 4 switching system. Locate the power cord that came with the DSR1024 switch. Plug one end in to the power socket on the back panel of the DSR1024 switch. Plug the other end [...]

10 DSR1024 Switch Installer/User Guide 9. Power up the target device and then power up the DSR10 24 switch. After approximately one minute, the switch completes initial ization and displays the target video on the local port monitor. 10. If you did not use the console menu interf ace to configure the DSR1024 switch, use the DSView 3 software to con[...]

Chapter 2: Installation 11 DSR1024 switch The front p anel of the DSR102 4 switch f eatures two LEDs indicating the Ethernet connection. • The top green LED, labeled Link, il luminates when a valid connection to the net work is established and blinks when there is activity on the port. • The lower amber LED, labeled 1 00M, indicates that you ar[...]

12 DSR1024 Switch Installer/User Guide Adjusting Mouse Settin gs on Target Devices Before a computer connected to the DSR1 024 switch can be used for remot e user control, you must set the target mouse speed and turn off accel eration. For machines running Microsoft ® Windows ® (Windows NT ® , 2000, XP, Serv er 2003), use the default PS/2 mouse [...]

Chapter 2: Installation 13 2. From the Control Panel, d ouble-click the Mouse icon to open the Mouse Properties dialog box. 3. Click the Motio n tab. 4. Set the Poin ter speed slider to Slo w (the leftmost tick mark). 5. Make sure the Snap to de fault checkbox is unchecked. 6. Click OK to close the Mouse Properties dialog box and to save your setti[...]

14 DSR1024 Switch Installer/User Guide 4. Set the Select a pointer speed slider to the de f ault of midpoint ( the fifth tick mark from the left). 5. Uncheck the Enhance poi nter precision checkbox. 6. Make sure the Snap To and the Visibility checkbox es are unchecked. 7. Click OK to close the Mouse Properties dialog box and to save your settings. [...]

Chapter 2: Installation 15 LINUX NOTE: Red Hat and SUSE support several stan dard graphical user interfaces. For this document, the Red H at- modified version of the GNOME graphical interface is shown, an d the SUSE-modified version of the KDE interface is shown. If your Red Hat installation uses the KDE graphical user interface, see the SUSE secti[...]

16 DSR1024 Switch Installer/User Guide 7. Resynchronize the mouse in the software remote session win dow for the Avocent manag ement software you are using. • If you are using DSView software version 2.x or earlier, click Mouse Align . • If you are using DSView software version 3.0 or later, click Align Local Cursor . • If you are using the A[...]

Chapter 2: Installation 17 2. Click anywhere in the screen area to open the Be havior (first time use defau lt) - Control Center window where you clicked. 3. If the Index side navigatio n bar is shown in tree view, click the plu s symbol (+) next to Peripherals to display the subm enu items. Otherwise, select Peripherals . 4. Select the Mouse optio[...]

18 DSR1024 Switch Installer/User Guide 4. In the Style Manager - Mouse dialog box, set the Acceleration slider to 1.0. 5. (Optional) Select the d esired Handedness and Button 2 optio ns and set the D ouble-Click and the Threshold sliders to the desired posi tions. Test the double-click speed by double-cli cking on the mouse icon. 6. Click OK to clo[...]

Chapter 2: Installation 19 7. Set the mouse scaling to normal by performi ng the following actions: a. From the Video Viewer menu, select Tools - Session Options to open the Session Options dialog box. b. Click the Mouse tab. c. In the Mouse Scaling area, select the Default setting. d. Click OK to close the Sessions Options dialog box and to save y[...]

20 DSR1024 Switch Installer/User Guide Apple Mac OS To adjust the mouse speed and cur sor settings for Version X (using default drivers): 1. Click the Apple icon. 2. Select System Prefs to open the System Prefs window. 3. Select View - Mouse t o open the Mouse d ialog box. 4. Set the Tracking Speed slider to the defau lt of the fifth tick mark from[...]

21 CHAPTER 3 Web Server Operations Overview of the DSR1024 Web Server In addition to the OSCAR on-screen interface, the DSR102 4 switch provides a built in web server to handle all basic KVM switching needs. For enhanced functionality and control of multiple devices, users can upgrade to the DSView 3 software package. The DSR web server provid es s[...]

22 DSR1024 Switch Installer/User Guide About the DSR Explorer Window When a user has been logged in and authenticated, the Avocent DSR Explorer window appears. From the DSR Explorer window, users may view , access and manage their DSR1024 switch. The window may also be used to specify system settings and ch ange profile settings. Figure 3.1 shows t[...]

Chapter 3: Web Server Operations 23 Using the side navigation bar You can use the side navigation bar to display windows in which you can specify settings or perform operations. Figure 3.2 shows the side navigation bar of the DSR1024 Explorer window. Figure 3.2: Side Navigation Bar Clicking on a link that does not contain an arrow wi ll display its[...]

24 DSR1024 Switch Installer/User Guide To bookmark a window: 1. In the top op tion bar, click BOOKMARK or the bookm ark icon. The Add Favorit e dialog box will appear. 2. If you wish, type a name for the window. You may also click th e Create in button to create or specify a folder in which to place the window. 3. Click OK to close the Add Favorite[...]

Chapter 3: Web Server Operations 25 To disconnect an active KVM session (Administrator o nly): 1. Click Appliance - Ap pliance Settings - Sessions - Active to display a list of active KVM sessions. 2. Select the checkbox to the left of the se ssion you wish to disconnect and click the Disconnect button. Managing a DSR web server device While not as[...]

26 DSR1024 Switch Installer/User Guide Managing Local Accounts The DSR web server provides local and login s ecurity through Administrator-defined user accounts. By selecting Local Accounts on the side menu bar, Administrato rs may add and delete users, define user preemption and access levels and change passwords. User access levels Accounts have [...]

Chapter 3: Web Server Operations 27 Managing Device Properties Viewing and changing applianc e configuration in formation The DSR1024 switch can report most device properties di rectly through the DSR web browser. NOTE: Users can view all appliance information, but only Administrators can change settings. Table 3.2: Viewing Applia nce Information T[...]

28 DSR1024 Switch Installer/User Guide Power Controlling Target Devices NOTE: You must have Administr ator privileges to change SPC power control device settings. If a target device is connected to an SPC powe r control device outlet, you may power up, power down or cycle (power target device dow n and then up) the target device using the D SR web [...]

29 CHAPTER 4 The Video Viewer About the Video Viewer Window The Video Viewer is used to conduct a KVM sessi on with the target devices attached to the DSR switch. When you connect to a device using the Vide o Viewer, the target device desktop appears in a separate window contain ing bo th the local and the target de vice cursor. The Video Viewer wi[...]

30 DSR1024 Switch Installer/User Guide The Video Viewer client req uires Java version 1.4.2_0 4 or later when opened from Internet Explorer, Mozilla, Netscape or Firefox browsers . The DSR web server au tomatically downloads and installs the Video Viewer the fi rst time it is opened. NOTE: The DSR web server does not install the Java Res ource Engi[...]

Chapter 4: The Video Viewer 31 Video Viewer Window Features Figure 4.1 shows the Video Viewer window areas, and descriptions follow in Table 4.1 on page 32. B C H D I F E G A Figure 4.1 : Video Viewer Window (Normal Window Mo de)[...]

Table 4.1: Video Viewer Win dow Descriptions Letter Description A Title Bar: Displays the na me of the server being viewed. When in Full Screen mode, the title bar disappears and the ser ver name appears between the menu and to olbar. B Thumbtack: Locks the display of the menu and tool bar so that it is visible at all times. C Menu and to olbar: En[...]

Chapter 4: The Video Viewer 33 Changing the toolbar You can choose the amount of elapsed time before the too lbar hides in the Video Viewer window when it is in show/hide state (that is , not locked in pla ce by the thumbtack). To specify a toolbar hide time: 1. Select Tools - Session Options from the Vi deo Viewer window menu -or- Click the Sessio[...]

34 DSR1024 Switch Installer/User Guide Adjusting the View Using menus or Task buttons in the Video Viewer window, you can do the follo wing: • Align the mouse cursors. • Refresh the screen. • Enable or disable Full Screen mode. When Full Screen mode is enabled, the image adjusts to fit the desktop up to a size of 1024 x 768. If the desktop ha[...]

Chapter 4: The Video Viewer 35 To enable or disable full screen mode: 1. To enable Full Screen mode, click the Maximize butto n. -or- Select View - Full Screen from the Video Viewer window menu. The desktop window disappears and only the acces sed device desktop is visible. The screen resizes up to a maximum of 1024 x 768. If the desktop has a high[...]

36 DSR1024 Switch Installer/User Guide Additional Video Adjustment Generally, the Video Viewer win dow automatic adjust ment features optimizes the video fo r the best possible view. However, user s can fine-tune the video with the help of Avocent Technical Support by selecting the Tools - Manual Video Adjust command in the Video Viewer window menu[...]

Table 4.2: Manual VIdeo Adjust D ialog Box Descriptions Letter Description Lette r Description A Image Capture Width H Pixel Noise Threshold B Pixel Sampling/Fine Adjust I Automatic Video Adjustment C Image Capture Horizontal Position J Refresh Image D Image Capture Vertical Position K Adjustment bar E Contrast L Video Test Pattern F Brightness M P[...]

38 DSR1024 Switch Installer/User Guide You can modify No ise Threshold and Priority Thre shold values if you are using standard video compression. You can also modify Block Noise Threshold and Pixel Noi se Threshold values. You can restore default threshold values by clicking Auto Adjust Video . Block noise threshold and pixe l noise threshold The [...]

Chapter 4: The Video Viewer 39 NOTE: If the device does not support the ability to di sconnect and r econnect the mouse (almost all newer PCs do), then the mouse will become disabled and the device will have to be rebooted. Cursor Type The Video Viewer window offers five appearance choices for the lo cal mouse cursor. You can also choose no cursor [...]

40 DSR1024 Switch Installer/User Guide The local cursor does not app ear and all movements are relative to the target device. To select a key for exiting single cursor mode: 1. Select Tools - Session Options from the Vi deo Viewer window menu. -or- Click the Session Options button. The Session Options dialog box appears. 2. Click the Mouse tab. 3. [...]

Chapter 4: The Video Viewer 41 Click the Session Options button. The Session Options dialog box appears. 2. Click the Mouse tab. 3. To use one of the preconfigured setti ngs, check the appropriate radio button. -or- 4. To set custom scaling: a. Click the Custom radio button to enable the X and Y fields. b. Type a mouse scaling value in the X and Y [...]

42 DSR1024 Switch Installer/User Guide NOTE: The Japanese keyboard ALT- Han/Zen keystroke combination is always sent to a re mote server regardless of the screen mode or keyboard pass-through setting. To specify keybo ard pass-through: 1. Select Tools - Session Options from the Vi deo Viewer window menu. -or- Click the Session Options button. The S[...]

Chapter 4: The Video Viewer 43 -or- Click the Capture to Clipboard bu tton. The image data is saved to the clipboard. Closing a Video Viewer Window Session To close a Video Viewer window session: Select File - Exit from t he Video Viewer wi ndow.[...]

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45 CHAPTER 5 Terminal Operations The Console Menu Each DSR1024 switch can be configured at the appliance level thro ugh the Console menu interface accessed through th e SETUP port on the back pane l of the switch. You can access all terminal commands through a terminal or PC running terminal emulation software. NOTE: Avocent does not recommend this[...]

46 DSR1024 Switch Installer/User Guide Figure 5.1 : Console Main Menu 2. The Console Main menu displays as shown in Figure 5.1 . 3. Type 1 and press Enter for the Network Configuration option to di splay the Network Configuration menu show n in Figure 5. 2 on page 47.[...]

Chapter 5: Terminal Operations 47 Figure 5. 2: Network Conf iguration Menu 4. Type 1 and press Enter to set your network speed and return to the Network Configuration menu. When possible, set your connection manually witho ut relying on the auto negotia te feature. 5. Type 2 and press Enter to specify whether you are using a static or Dynam ic Host[...]

48 DSR1024 Switch Installer/User Guide Other Console Main Menu Options Besides the Network Configuration option , the Console Main menu of the DSR10241024 switch features the follo wing menu it ems: • Security Configuration • Firmware Man agement • Enable Debug Messages • Keyboard Layout Configuration , Display Version Information, Rename D[...]

Chapter 5: Terminal Operations 49 To rename a user in the DSR1024 1024 switch database: 1. From the Console Main menu, type 2 and press Enter to access the Security Configuration menu option. 2. Type 1 and press Enter to access the Local User Accounts me nu option. A list of users already within the database appears. 3. Type E . 4. At the prompt, e[...]

50 DSR1024 Switch Installer/User Guide If the server running DSVi ew 3 software cannot contact the DSR10241024 switch to add the certificate, an error message disp lays and the DSR10241024 switch is not added to the database. Secure Mode The DSR1024 switch operates in one of two modes: Security disabled or Security enabl ed. • In Security disable[...]

Chapter 5: Terminal Operations 51 keyboard. Sun servers will interpret pressin g the Y key on a German keyboard as pressing the Z key when the US keyboard country code is used. The Keyboard command enables you to send a differ ent keybo ard country code than the default US setting. The specified country code is sent to the target device attached to[...]

52 DSR1024 Switch Installer/User Guide Figure 5.3: The Rename DSRIQ Mo dule Screen 2. Enter a meaningful name, o r press Enter to revert to the using the EID as the DSRIQ name. Names may be up to 15 characters long. Legal characters include A-Z, a-z, 0-9, space and hyphen. 3. You will be prompted to accept the new name. If it is correct, type y , t[...]

53 APPENDICES Appendix A: FLASH Upgrades You can use the DSR1024 switch FL ASH upgrade feature to update your appliance with the latest firmware available. You can perform this update by using the DSV iew 3 software or by using a Trivial File Transfer Pr otocol (TFTP) server. After the FLASH memory is reprogrammed with th e upgrade, the DSR1024 swi[...]

54 DSR1024 Switch Installer/User Guide 10. The DSR1024 switch begins the FLASH upgrade process. On-screen in dicators display the upgrade progress. When the upload is compl ete , the DSR1024 switch resets and upgrades th e internal subsystems. 11. Once the upgrade is complete, a veri fication mess age appears on-screen.[...]

Appendices 55 Appendix B: Using DSView Software Over a Modem Connection An external modem can be attached to the DSR1024 switch. You can use this modem to access th e switch when an Ethernet connection is not available. A modem/PPP dial-up connection must be establishe d before the remote operat ion is enabled. Be sure to set the dial-up connection[...]

56 DSR1024 Switch Installer/User Guide Appendix C: Using DSRIQ-SRL Modules The DSRIQ-SRL module is a serial -to-VGA converter that permits VT10 0-capable devices to be viewed from the DSR1024 switch local po rt or by using the DSView 3 software. The actual serial data is not accessed but is merely displayed. All serial data co ming from the target [...]

Appendices 57 • Enter Sends: Use this option to specify the keys that are transmitted when Enter is pressed. Available optio ns are <CR> (Enter), which m oves th e cursor to the left si de of the screen, or <CR><LF> (Enter-Linefeed), which moves the cursor to the left side of the screen and down one line. • Received: This opti[...]

58 DSR1024 Switch Installer/User Guide To configure a DSRIQ-SRL module: 1. Press Ctrl-F8 to open the Configuration Screen. 2. Select a parameter to change. You can navigate the Configu ration Screen using the Up Arrow and Down Arro w keys. 3. Modify the selected value using the Left Arrow and Right Arrow keys. 4. Repeat steps 2 and 3 to modify addi[...]

Appendices 59 To use History mode: 1. Press Ctrl-F9 to enter i nto History mode. 2. Press one of the following ke y combin ations to perform the indicated action: • Home : Move to the top of the buffer. • End : Move to the bottom of the buffer. • Page Up : Move up one buffer page. • Page Down : Move down one buff er page. • Up Arrow : Mov[...]

60 DSR1024 Switch Installer/User Guide Appendix D: UTP Cabling The following informat ion is intended t o brief you o n various aspects o f connection me dia. The performance of a DSR1024 switchi ng system depends on high quality connections. Poo r quality or poorly installed or maintained cabli ng can diminish DSR system performance. NOTE: This ap[...]

Appendices 61 Cabling installation, ma intenance and safety tips Prior to installing or maint aining your cables, review the following list of important safety considerations: • Keep all CAT 5 runs to a maximum of 10 meters each. • Maintain the twists of the pairs all the way to the point of termination, or no mo re than one-half inch untwisted[...]

62 DSR1024 Switch Installer/User Guide Appendix E: Techni cal Specifications Table E.1 lists the technical specifications for the DSR1024 switch. Table E.1: DSR1024 Switch Product Specificat ions Server Ports Number 1 (DSR1024 switch) Types DSRIQ-PS/2, DSRIQ-USB, DSRIQ-VSN (Sun VGA), D SRIQ-WSN (Sun 13W3) and DSRIQ-SRL modules Connectors RJ-45 Sync[...]

Appendices 63 Connectors RJ-45 SPC Device Port Number 1 Type RJ-45 Dimensi ons Height x Width x Depth 1.10 x 8.08 x 6.30 in (2.80 x 20.51 x 16.00 cm) Weight 1.1 lbs (0.50 kg) without cables Power Supply AC-input Power 20 W maximum AC-input Range 100 - 240 VAC AC-input Current Rating AC-input Cable 18 AWG three-wire cable, with a three-lead IEC -320[...]

64 DSR1024 Switch Installer/User Guide Appendix F: Sun Ad vanced Key Emulation Certain keys on a standard Type 5 (US) Sun keyb oard can be emulated by k ey press sequences on a PS/2 keyboard. To enable Sun Advanced Key Emulation mode and use these key s, press and hold Ctrl+Shift+Alt and then press the Scroll Lock key. The Scroll Lock LED blinks. U[...]

Appendices 65 For example: For Stop + A , press and hol d Ctrl+Shift+Alt and press Scroll Lock , then F1 + A . These key combinations will work wi th the DSRIQ-USB module (if you r Sun system comes with a USB port) as well as the Sun DSRIQ-VSN an d DSRIQ-WSN modu les. With the excepti on of F12 , these key combinations are not reco gnized by Micros[...]

66 DSR1024 Switch Installer/User Guide Appendix G: Technical Support Our Technical Support staff is ready to assist yo u with any installation or operating issues you encounter with your Avocent product. If an issue should develo p, follow the steps below for the fastest possible service: 1. Check the pertinent section of the manual to see if the i[...]

67 INDEX Numerics 100BaseT Ethernet 62 10BaseT Ethernet 62 A access DSRIQ Terminal Applications menu 11 secure, remote 1 target device 2 via a network connection 2 via modem 1, 2, 9 via network connection 9 add a user to the DSR switch database 48 B Basic DSR Configuration 7 Benefits 1 C CAT 5 patch cable 1, 8, 9, 10, 60, 61, 62 change the name of [...]

68 DSR1024 Switch Installer/User Guide DSView software 2, 5, 6, 8, 10, 11, 45, 48, 49, 50, 53, 55, 56 configuring 11 database 50 illustrated 2 Secure mode 48 security 50 system 48 E Enable Debug Messages 50 Example DSR Switch Configuration 2 F Features 1 Firmware Management 50 FLASH Download 50 Upgrades 53 H History mode 57, 58, 59 I Installation 5[...]

INDEX 69 To connect and p ower up your DSR switch 9 To create a DSRIQ-SRL module macro 58 To remove a user from the DSR switch da tabase 49 To rename a user in the DSR switch datab ase 49 To set the keyboard country code for Sun servers 51 To upgrade the DSR switch firmware using the Console menu 53 To upgrade the DSR switch firmware using the DSVi[...]

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For T echnical Support: Avocent Corporation 4991 Corporate Drive Huntsville, Alabama 35805-6201 USA Tel: +1 256 430 4000 Fax: +1 256 430 4031 590-440-50 1B Avocent International Ltd. Avocent House, Shannon Free Zone Shannon, County Clare, Ireland Tel: +353 6 1 7 1 5 292 Fax: +353 6 1 4 7 1 87 1 Avocent Asia Pacifi c Singapore Branch Offi ce 1 00 [...]