KVM Switch KH2508A / KH2516A User Manual www.aten.
KH2508A / KH2516A User Manual FCC Information This is an FCC Class A product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures. 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.
KH2508A / KH2516A User Manual User Information Online Registration Be sure to register your product at our online support center: International http://support.aten.com North America http://www.aten-usa.
KH2508A / KH2516A User Manual Package Contents The KH2508A / KH2516A package consists of: 1 KH2508A or KH2516A Cat 5 High-Density KVM Switch 1 Firmware Upgrade Cable 1 Power Cord 1 Grounding Wire 1 Rack Mount Kit 1 Foot Pad Set (4 pcs.) 1 User Manual* 1 Quick Start Guide Check to make sure that all of the components are present and in good order. If anything is missing, or was damaged in shipping, contact your dealer.
KH2508A / KH2516A User Manual Contents FCC Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii RoHS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii SJ/T 11364-2006. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii User Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iii Online Registration . . . . .
KH2508A / KH2516A User Manual Hot Plugging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Hot Plugging Stations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Hot Plugging KVM Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Hot Plugging Console Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Powering Off and Restarting. . . . . . . . . . . . . . . . . . . . . . . . . . . .
KH2508A / KH2516A User Manual Chapter 6. Keyboard Emulation Mac Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Sun Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Chapter 7. The Firmware Upgrade Utility Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
KH2508A / KH2516A User Manual About This Manual This User Manual is provided to help you get the most from your KH2508A / KH2516A system. It covers all aspects of installation, configuration and operation. An overview of the information found in the manual is provided below. Chapter 1, Introduction, introduces you to the KH2508A / KH2516A system. Its purpose, features and benefits are presented, and its front and back panel components are described.
KH2508A / KH2516A User Manual Conventions This manual uses the following conventions: Monospaced Indicates text that you should key in. [] Indicates keys you should press. For example, [Enter] means to press the Enter key. If keys need to be chorded, they appear together in the same bracket with a plus sign between them: [Ctrl+Alt]. 1. Numbered lists represent procedures with sequential steps. ♦ Bullet lists provide information, but do not involve sequential steps.
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Chapter 1 Introduction Overview A KH2508A/KH2516A KVM switch is a control unit that allows IT administrators to access and control multiple computers from two PS/2 or USB KVM (keyboard, monitor, and mouse) consoles. Operators working at up to two consoles can independently and simultaneously take control of up to 8 (KH2508A), or 16 (KH2516A) computers. By daisy chaining up to 31 additional switches, as many as 512 computers can be controlled from the original KVM console.
KH2508A / KH2516A User Manual Features and Benefits The features and benefits provided by a KH2508A / KH2516A deployment are described in the following table: Features Benefits Two Consoles Control Two KVM consoles independently and simultaneously control up to 8 or 16 directly connected computers. Scalability By daisy chaining up to 31 additional KH2508A / KH2516A switches, as many as 512 computers can be controlled from the original KVM console.
Chapter 1. Introduction Features Benefits Auto Scanning and Broadcast Mode Auto scanning provides hands-free monitoring of selected devices at variable rates. Broadcast Mode sends commands from the console to all computers – allowing you to perform operations (such as software installation, upgrades, shutdowns, etc.
KH2508A / KH2516A User Manual Requirements Consoles A VGA, SVGA, or multisync monitor capable of the highest resolution that you will be using on any computer in the installation A PS/2 or USB mouse A PS/2 or USB keyboard Computers The following equipment must be installed on the computers that connect to the KH2508A or KH2516A KVM ports: A VGA, SVGA or multisync port A Type A USB port and USB host controller (for USB KVM adapter cable connection, see following section) - or 6-pin Mini-DIN keybo
Chapter 1. Introduction KVM Adapter Cables Cat 5e/6 cable is required to connect the KH2508A / KH2516A to one of the KVM adapter cables.
KH2508A / KH2516A User Manual Components Front View KH2508A 1&2 3 4 5 6 3 4 5 6 7 8 KH2516A 1&2 6 7 8
Chapter 1. Introduction No. Component 1 Port Selection Pushbuttons Description Press a pushbutton to give the KVM focus to the computer attached to its corresponding port. Simultaneously pressing Pushbuttons 1 and 2 for 3 seconds performs a keyboard and mouse reset. Simultaneously pressing Pushbuttons 7 and 8 of the KH2508A or Buttons 15 and 16 of the KH2516A starts Auto Scan mode (see F7: SCAN, page 36, for auto scan details).
KH2508A / KH2516A User Manual Rear View KH2508A 1 3 2 4 5 6 7 KH2516A 1 4 8 3 2 5 6 7
Chapter 1. Introduction No. Component Description 1 Power Socket The power cord to the AC source plugs in here. 2 Power Switch This is a standard rocker switch that powers the KH2508A / KH2516A on and off. 3 Daisy Chain Ports When daisy chaining units (see Daisy Chaining, page 17), the daisy chain cables plug in here. The port on the left is the Chain In port; the port on the right is the Chain Out port. 4 Grounding Terminal The wire used to ground the unit connects here.
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Chapter 2 Hardware Setup Overview For convenience and flexibility that allows mixing the PS/2, USB and serial interfaces, the KH2508A / KH2516A's design utilizes KVM adapter cables that serve as intermediaries between the KVM switch and the connected devices: A separate KVM adapter cable is required for each computer or device connection. The KVM adapter cables are listed in the KVM Adapter Cables section on page 5. Consult your dealer to find out which KVM adapter cables best fit your needs.
KH2508A / KH2516A User Manual Stacking and Rack Mounting The KH2508A / KH2516A can be stacked on the desktop or rack mounted at the front or rear of the rack. The following sections take you through the procedures for each method. Note: 1. Allow at least 5.1 cm on each side for adequate ventilation and 12.7 cm at the rear for power cord and cable clearance. 2. The standard rack mount kit does not include rack mount screws or cage nuts.
Chapter 2. Hardware Setup Rack Mounting The KH2508A / KH2516A can be mounted in a 19" (1U) rack. The mounting brackets can screw into either the front or the back of the unit so that it can attach to the front or the back of the rack. To rack mount the unit: 1. Remove the screws at the front or the rear, as shown in the diagram below. Philips hex head M3x6 Philips hex head M3x6 2. Screw the mounting brackets into the sides of the unit at the front or the rear, as shown in the diagram below.
KH2508A / KH2516A User Manual Single Station Installation In a single stage installation, there are no additional KVM switches daisy chained down from the KH2508A / KH2516A. To set up a single stage installation, refer to the installation diagrams starting on page 15 (the numbers in the diagram correspond with the numbers of the instruction steps), and do the following: 1.
Chapter 2. Hardware Setup Single Stage Installation Diagram 4 5 3 1 ATEN by DU 912 MO KA U .
KH2508A / KH2516A User Manual KVM Adapter Cable Installation Diagrams by ATEN LINK KA7120 KA7520 KA7920 KA9120 KA9520 by ATEN LINK KA7170 KA7570 KA7970 KA9170 KA9570 SERIAL TERMINAL KA9140 16 by ATEN LINK KA7130 KA9130
Chapter 2. Hardware Setup Daisy Chaining To control even more computers, up to 31 additional KH2508A / KH2516A KVM switches can be daisy chained from the original KH2508A or KH2516A. As many as 512 computers can be controlled from a single console in a complete installation. Note: A single console KVM switch can not be installed on a KH2508A/ KH2516A daisy chain.
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Chapter 3 Basic Operation Port Selection KH2508A / KH2516A installations provide three methods to obtain instant access to any computer on your installation: Manual, OSD (on-screen display), and Hotkey. Manual Manual port selection simply involves pressing the port selection switch that corresponds to the device you wish to access. Note: Before making your port selection, first make your console selection by pressing the appropriate console selection button.
KH2508A / KH2516A User Manual Hot Plugging The KH2508A / KH2516A supports hot plugging – components can be removed and added back into the installation by unplugging and replugging their cables without the need to shut the unit down. In order for hot plugging to work properly, however, the procedures described below should be followed. Hot Plugging Stations You can switch station positions by simply unplugging from the old parent and plugging into a new one.
Chapter 3. Basic Operation Powering Off and Restarting If it becomes necessary to power off the KH2508A / KH2516A, or if the switch loses power and needs to be restarted, before starting it back up it is suggested that you follow these procedures to prevent possible equipment issues: 1. Shut down all the computers that are attached to the switch. Note: You must unplug the power cords of any computers that have the Keyboard Power On function. 2. Wait 10 seconds then power it back on.
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Chapter 4 OSD Operation OSD Overview The On Screen Display (OSD) is a menu driven method to handle computer control and switching operations. All procedures start from the OSD Main Screen. To display the Main Screen, tap the OSD hotkey twice. The default hotkey is [Scroll Lock]. You can change the hotkey to the Ctrl key or the Alt key if you like (see OSD HOTKEY, page 28). Note: 1. If you use the Ctrl or Alt key method you must press the same Ctrl or Alt key both times. 2.
KH2508A / KH2516A User Manual When you start the OSD, a screen similar to the one below appears: Note: 1. The image above is the Administrator's Main Screen. The User Main Screen does not show the F4 and F6 functions, since these are reserved for the administrator and cannot be accessed by users without administrator privileges. 2. Only the ports that have been set accessible by the Administrator, for the currently logged in user, are visible (see SET ACCESSIBLE PORTS, page 31, for details).
Chapter 4. OSD Operation OSD Navigation To dismiss the menu, and deactivate the OSD, click the X at the upper right corner of the OSD Window or press Esc. To Logout click F8 or the ZZZ symbol at the top of the Main Screen, or press [F8]. The OSD uses a tree view. To see the ports for a particular station, click the plus sign [ + ] in front of the station number. The port number list drops down. To retract the list, click the dash symbol [ -] in front of the station number.
KH2508A / KH2516A User Manual OSD Functions OSD functions are used to configure and control the OSD. For example, you can rapidly switch to any port, scan selected ports only, limit the list you wish to view, designate a port as a Quick View Port, create or edit a port name, or make OSD setting adjustments. To access an OSD function: 1. Either click a function key field at the top of the Main Screen, or press a function key on the keyboard. 2.
Chapter 4. OSD Operation F2: LIST Many of the switch’s OSD functions only operate on the computers currently selected for listing on the Main Screen. Accessing this function lets you broaden or narrow the scope of ports that get listed. The submenu choices and their meanings are given in the table below: Choice Meaning ALL Lists all of the ports on the installation. QUICK VIEW Lists only the ports that have been selected as Quick View Ports (see SET QUICK VIEW PORTS, page 30).
KH2508A / KH2516A User Manual F3: SET Accessing this function allows the administrator and each user to set up an individual working environment. A separate profile for each operator is stored by the OSD and is activated according to the username provided during login. To change a setting: 1. Double-click it; or move the highlight bar to it, then press [Enter]. 2. After you select an item, a submenu with further choices appears.
Chapter 4. OSD Operation Setting SCAN/SKIP MODE Function Selects which computers will be accessed under Skip mode (see F5: SKP, page 34), and Auto Scan mode (see F7: SCAN, page 36).
KH2508A / KH2516A User Manual Setting Function SET QUICK This function lets users and the administrator select which ports to VIEW PORTS include as Quick View ports. To select/deselect a port as a Quick View Port, use the navigation keys to move the highlight bar to it, then press the [Spacebar]. When a port has been selected as a Quick View Port, an arrowhead displays in the QV column of the LIST on the Main Screen to indicate so. When a port is deselected, the arrowhead disappears.
Chapter 4. OSD Operation F4: ADM F4 is an administrator only function. Accessing this function allows the administrator to configure and control the overall operation of the OSD. To change a setting double click it; or use the up and down arrow keys to move the highlight bar to it, then press [Enter]. After you select an item, a submenu with further choices appears. Double click the choice you want, or move the highlight bar to it, then press [Enter]. An icon appears before the selected choice.
KH2508A / KH2516A User Manual Setting SET OCCUPY TIMEOUT Function This function sets a time threshold for users on ports whose Operation Mode has been set to Occupy (see SET OPERATION MODE, page 31). If there is no activity from the user occupying the port for the amount of time set here, the user is timed out and keyboard and mouse control on the port is released, after which the first user to send keyboard or mouse input will occupy the port.
Chapter 4. OSD Operation Setting SET CAT 5 LENGTH Function Lets you specify how long the Cat 5e/6 cable between the port and the KVM adapter cable is. Press [Spacebar] to cycle through the cable length settings: S: Short – for up to 25 m M: Medium – for between 20 and 35 m L: Long – for above 35 m An S, M, or L appears next to the port to indicate the choice. SET KEYBOARD LANGUAGE Sets the keyboard language layout for the computers attached to each port.
KH2508A / KH2516A User Manual F5: SKP This function enables you to easily skip backward or forward, switching the console focus from the currently active KVM Port to the previous or next available one. The selection of computers to be available for Skip mode switching is made with the Scan/Skip mode setting under the F3 SET function (see page 29). When you are in Skip mode, press: ← To skip to the previous port in the List. → To skip to the next port in the List.
Chapter 4. OSD Operation F6: BRC F6 is an administrator only function. When this function is in effect, commands sent from the console are broadcast to all available computers on the installation. This function is particularly useful for operations that need to be performed on multiple computers, such as performing a system wide shutdown, installing or upgrading software, etc.
KH2508A / KH2516A User Manual F7: SCAN This function automatically switches among the available computers at regular intervals so that you can monitor their activity without having to take the trouble of switching manually. The selection of computers to be included for Auto Scanning is made with the Scan/Skip mode setting under the F3 SET function (see page 29). The amount of time that each port displays for is set with the Scan Duration setting under the F3 SET function (see page 28).
Chapter 4. OSD Operation F8: LOUT Clicking the F8 field, or pressing [F8], logs you out of the OSD and blanks the console screen. This is different from simply deactivating the OSD when you are at the Main Screen by pressing [Esc]. With this function you must log in all over again to regain access to the OSD, whereas with [Esc], all you have to do to reenter the OSD is tap the OSD Hotkey. Note: 1. When you reenter the OSD after logging out, the screen stays blank except for the login dialog box.
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Chapter 5 Hotkey Operation Hotkey Port Control Hotkey port control allows you to provide KVM focus to a particular computer directly from the keyboard.
KH2508A / KH2516A User Manual Invoking Hotkey Mode All Hotkey operations begin by invoking Hotkey mode.1 To invoke Hotkey mode you may use two possible keystroke sequences shown below. Only one of the two key-sequences below can be operational (see Setting the Hotkey key combination on page 46): Number Lock and Minus Keys 1. Hold down the [Num Lock] key; 2. Press and release the [Minus] key; 3. Release the [Num Lock] key: [Num Lock] + [-] Control and F12 Keys 1. Hold down the [Ctrl] key; 2.
Chapter 5. Hotkey Operation Selecting the Active Port Each computer port is assigned a port ID (see Port ID Numbering, page 21). You can directly access any computer with a Hotkey combination that specifies the port ID that the computer is connected to. The steps are: 1. Invoke Hotkey mode: [Num Lock] + [-] or [Ctrl] + [F12] 2. Key in the port ID. The port ID numbers display on the command line as you key them in. If you make a mistake, use [Backspace] to erase it. 3. Press [Enter].
KH2508A / KH2516A User Manual Auto Scan Mode Switching Auto Scan automatically switches among all the active computer ports that are accessible to the currently logged on user at regular intervals. This allows their activity to be monitored automatically (See SKAN/SKIP MODE of the OSD F3 SET function, page 29). Setting the Scan Interval The amount of time Auto Scan keeps the focus on each port is set with the SCAN DURATION setting of the OSD F3 SET function (see page 28).
Chapter 5. Hotkey Operation (Continued from previous page.) When you want to keep the focus on a particular computer, Pausing is more convenient than exiting Auto Scan mode. When you resume scanning it starts at the computer where you paused. If you exited and then restarted Auto Scanning, it starts, at the beginning, from the first computer on the installation. To resume Auto Scanning, press any key. Scanning continues from the computer you paused at.
KH2508A / KH2516A User Manual Skip Mode Switching This feature allows you to switch between computers in order to monitor them manually. You can focus on a particular port for as long as you like – as opposed to auto-scanning, which automatically switches the port focus after a fixed interval. Entering Skip Mode To enter Skip mode, key in the following Hotkey combination: 1. Invoke Hotkey mode: [Num Lock] + [-] or [Ctrl] + [F12] 2. Press one of the [Arrow] keys.
Chapter 5. Hotkey Operation Computer Keyboard / Mouse Reset If either the keyboard or mouse stop functioning on the computer connected to the currently selected port, you can perform a keyboard / mouse reset on the computer by executing the following steps: 1. Invoke Hotkey mode: [Num Lock] + [-] or [Ctrl] + [F12] 2. Press [F5]. After you press [F5] you automatically exit Hotkey mode and regain keyboard and mouse control on the computer connected to the KVM port.
KH2508A / KH2516A User Manual Setting the Hotkey key combination The keys used to enter the Hotkey Mode (see HOTKEY COMMAND MODE, page 29) can be switched between: [Num Lock] + [-], and [Ctrl] + [F12] by the following steps: 1. Invoke Hotkey mode: [Num Lock] + [-] or [Ctrl] + [F12] 2. Press [H]. After you press [H], the command line displays HOTKEY HAS BEEN CHANGED for one second; then the message disappears and you automatically exit Hotkey mode.
Chapter 5. Hotkey Operation Setting the Port Operating System A port’s operating system configuration can be matched to that of the computer attached to the port by performing the following steps: 1. Invoke Hotkey mode: [Num Lock] + [-] or [Ctrl] + [F12] 2.
KH2508A / KH2516A User Manual Hotkey Summary Table [Num Lock] + [-] [A] [Enter] or Invokes Auto Scan mode. When Auto Scan mode is in effect, [P] or left-click pauses auto-scanning. [Ctrl] + [F12] When auto-scanning is paused, pressing any key or another left-click resumes autoscanning. 48 [B] Toggles the Beeper On or Off. [Esc] or [Spacebar] Exits hotkey mode.
Chapter 6 Keyboard Emulation Mac Keyboard The PC compatible (101/104 key) keyboard can emulate the functions of the Mac keyboard. The emulation mappings are listed in the table below.
KH2508A / KH2516A User Manual Sun Keyboard The PC compatible (101/104 key) keyboard can emulate the functions of the Sun keyboard when the Control key [Ctrl] is used in conjunction with other keys. The corresponding functions are shown in the table below.
Chapter 7 The Firmware Upgrade Utility Introduction The purpose of the Windows-based Firmware Upgrade Utility is to provide an automated process for upgrading the KH2508A / KH2516A and compatible adapter cable firmware. The program comes as part of a Firmware Upgrade Package that is specific for each device. The latest revisions of new firmware for the KH2508A / KH2516A, and supported KVM Adapter Cables are posted as Firmware Upgrade Packages on our web site.
KH2508A / KH2516A User Manual (Continued from previous page.) 3. Use the firmware upgrade cable (provided with this unit), to connect a COM port on your computer to the firmware upgrade port of your device. Note: On a daisy chained installation, connect the cable to the first station (master) unit. The chained stations (slaves) will receive the upgrade via the daisy chain cables. 4. Shut down all of the computers except those that are attached to cable adapters that require upgrade.
Chapter 7. The Firmware Upgrade Utility Performing the Upgrade Starting the Upgrade To upgrade your firmware: 1. Run the downloaded Firmware Upgrade Package file, either by double clicking the file icon, or by opening a command line and keying in the full path to it. The Firmware Upgrade Utility Welcome screen appears: 2. Read and Agree to the License Agreement (enable the I Agree radio button). 3. Click Next to continue.
KH2508A / KH2516A User Manual The Utility checks to make sure the KH2508A / KH2516A is in the Firmware Upgrade Mode and then lists all firmware available preselected in the Device List panel. Note: If the Utility fails to list any firmware check that the KH2508A / KH2516A is connected and in the Firmware Upgrade Mode. Alternatively the Firmware Package maybe corrupted or the wrong version therefore obtain a new copy of the file and retry. 4.
Chapter 7. The Firmware Upgrade Utility As the upgrade proceeds status messages appear in the Status Messages panel, and the progress toward completion is shown on the Progress bar. To abort the upgrade procedure before it completes, click Cancel. If you cancel before completion, a dialog box warns you that the upgrade will not finish and shows the options to proceed or abort the cancel operation. The Mainboard and OSD firmware may be missing or corrupted upon rebooting the switch.
KH2508A / KH2516A User Manual Upgrade Failed If the upgrade failed to complete successfully a dialog box appears asking if you want to retry. Click Yes to retry. If you click No, the Upgrade Failed screen appears similar to below: Click Cancel to close the Firmware Upgrade Utility. See the next section, Firmware Upgrade Recovery, for how to proceed. Firmware Upgrade Recovery Should the firmware on the switch be missing or corrupted it may not be possible to operate or boot the switch.
Chapter 7. The Firmware Upgrade Utility 3. From your KVM switch console, bring up the OSD (see page 23) and select the F4ADM function. 4. Scroll down to FIRMWARE UPGRADE. Press [Enter]. 5. Press [Y] to invoke Upgrade mode. 6. Proceed with the firmware upgrade as described in Performing the Upgrade, starting on page 53. 7. When the upgrade ends, power off the switch 8. Slide the Firmware Upgrade Recovery Switch back to the Normal position. 9. Power on the switch.
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Appendix Safety Instructions General Read all of these instructions. Save them for future reference. Follow all warnings and instructions marked on the device. Do not place the device on any unstable surface (cart, stand, table, etc.). If the device falls, serious damage will result. Do not use the device near water. Do not place the device near, or over, radiators or heat registers. The device cabinet is provided with slots and openings to allow for adequate ventilation.
KH2508A / KH2516A User Manual (Continued from previous page.) Do not allow anything to rest on the power cord or cables. Route the power cord and cables so that they cannot be stepped on or tripped over. If an extension cord is used with this device make sure that the total of the ampere ratings of all products used on this cord does not exceed the extension cord ampere rating. Make sure that the total of all products plugged into the wall outlet does not exceed 15 amperes.
Appendix Rack Mounting Before working on the rack, make sure that the stabilizers are secured to the rack, extended to the floor, and that the full weight of the rack rests on the floor. Install front and side stabilizers on a single rack or front stabilizers for joined multiple racks before working on the rack. Always load the rack from the bottom up, and load the heaviest item in the rack first. Make sure that the rack is level and stable before extending a device from the rack.
KH2508A / KH2516A User Manual Technical Support International For online technical support – including troubleshooting, documentation, and software updates: http://support.aten.com For telephone support, see Telephone Support, page iii: North America Email Support Online Technical Support support@aten-usa.com Troubleshooting Documentation Software Updates Telephone Support http://www.aten-usa.
Appendix Specifications Function Computer Connections KH2508A Direct 8 16 Max.
KH2508A / KH2516A User Manual Function Environment Physical Properties Operating Temp. KH2516A 0–50o C Storage Temp. -20–60o C Humidity 0–80% RH Housing Metal Weight Dimensions 64 KH2508A 2.81 kg 2.85 kg 43.72 x 16.36 x 4.
Appendix Connection Tables The following table indicates the relationship between the number of KH2508A / KH2516A units and the number of computers that they control KH2508A No. Computers No. Computers No. Computers No.
KH2508A / KH2516A User Manual OSD Factory Default Settings The factory default settings are as follows: Setting OSD Hotkey Default [Scroll Lock] [Scroll Lock] Port ID Display Position Upper Left Corner Port ID Display Duration 3 Seconds Port ID Display Mode Scan Duration The Port Number plus the Port Name 5 Seconds Scan/Skip Mode All Screen Blanker OFF Hotkey Command Mode Hotkey ON [Num Lock] + [-] Logout Timeout OFF Beeper ON Accessible Ports F (Full Access) For all Users on all Ports
Appendix Administrator Login Failure If you are unable to perform an Administrator login (because the Username and Password information has become corrupted or you have forgotten it, for example) you can clear the login information with the following procedure: 1. Power off the KH2508A / KH2516A and remove its housing. 2. Short the jumper labeled J8. 3. Power on the switch. The on screen display will show a message informing you that the password information has been cleared. 4. Power off the switch. 5.
KH2508A / KH2516A User Manual Troubleshooting Overview Operation problems can be due to a variety of causes. The first step in solving them is to make sure that all cables are securely attached and seated completely in their sockets. In addition, updating the product’s firmware may solve problems that have been discovered and resolved since the prior version was released. If your product is not running the latest firmware version, we strongly recommend that you upgrade.
Appendix Limited Warranty ALTUSEN warrants this product against defects in material or workmanship for a period of one (1) year from the date of purchase. If this product proves to be defective, contact ALTUSEN's support department for repair or replacement of your unit. ALTUSEN will not issue a refund. Return requests can not be processed without the original proof of purchase.
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Index A H Adapter Cable Installation, 16 Adapter Cables, 11 Administrator Login Failure, 67 Auto Scanning, 28, 42 Invoking Auto Scan, 42 Pausing Auto Scan, 42 Setting the Scan Interval, 42 Stopping, 43 B Benefits, 2 C Components Front View, 6 Rear View, 8 Connection Tables, 63 D Daisy chaining, 17 F Factory Default Settings, 66 Features, 2 Firmware Upgrade Cable, 52 Port, 52 Recovery, 56, 57 Firmware Upgrade Mode Invoking, 52 Front View, 6 Hardware Setup, 11 Hot Plugging, 20 Hotkey, 23 Selecting the
KH2508A / KH2516A User Manual O Online Registration, iii OSD Factory Default Settings, 66 Functions, 26 Hotkey, 23 Main Screen Headings, 25 Navigation, 25 Overview, 23 Password, 23 P Password, 23 Port LEDs, 7 Selection, 19 Port ID Numbering, 21 Powering Off and Restarting, 21 R Rack Mounting, 13 Rear View, 8 Requirements Computer, 4 Console, 4 72 KVM adapter cables, 5 Operating Systems, 5 OS Support, 5 Reset Switch, 7 RoHS, ii S Safety Instructions General, 59 Rack Mounting, 61 Scan Duration, 28 Selec
