Adder Technology EPS-M8, X200AS/R Video compensation, See Remote user skew adjustment for details

Page 29

Video compensation

The AdderView CATx units allow computer systems to be placed up to 50m

(160 feet) away and remote users to be extended by a maximum of 300m (980 feet). Such long cable lengths can affect video signals, especially when higher screen resolutions are used. In order to eliminate any video signal degradation, all AdderView CATx units and accompanying Adder X100 and X200 extenders provide effective software-based video compensation features.

Two main types of video compensation are provided within the AdderView CATx installation, these are:

•Computer video compensation - operates on video signals between each computer system and the AdderView CATx unit. See Computer video compensation.

•Remote user video compensation - operates on video signals between each remote user(s) and the AdderView CATx unit. See Remote user video compensation for details.

Note: For installations where both computers and remote users require video compensation, always ensure that the computers are compensated first.

•A third type of video compensation is provided by Adder X100AS/R and Adder X200AS/R extender modules only. This type of compensation is called Skew adjustment and combats the effect of uneven twisted pairs within link cables. .

See Remote user skew adjustment for details.

It is important to note that, providing the cabling arrangements do not change, the various video compensations need to be applied only once to each computer or remote user link. During operation, control of video compensation is fully automatic. Please take into account the following when configuring links:

•The AdderView CATx stores a video compensation setting for each computer which defines the level of compensation that is applied whenever the computer is selected. This “computer video compensation” setting

is to correct for any video clarity loss due to the CATx cable between the AdderView CATx unit and the computer’s CAM.

•CATx cables below 10m give very little loss and so it is not normally necessary to be concerned about setting any computer video compensation if short CATx cables are being used between the AdderView CATx and the CAM for each computer.

•“Computer video compensation” may be setup by typing in the cable distance in the OSD or, if very fine video adjustment is desired, by observing the video picture on the local (user 1) port whilst making adjustments.

•If a cascade of switches is being used, computer video compensation only needs to be applied at the master AdderView CATx.

•“Remote user video compensation” compensates for any CATx cable losses introduced by the cable between the X100/X200 and the AdderView CATx. The required video compensation setting does not vary as any “computer video compensation” is automatically added as different computers are selected. This only needs to be setup once during installation.

   



28

Page 28 Page 30
Image 29
Page 28 Page 30
Contents AdderView CATx Contents Re-synchronise mouse Auto calibrateIndex Introduction Front panel buttons AdderView CATx features front and rearWhat you may additionally need What’s in the boxConnections MountingRack brackets Connections Remote switching ControlModem Multiple video Isdn port Head connections Cascading Multiple unitsTo connect the local user port Local userTo connect a remote user Remote user via X100/X200 extenderCable lengths for remote user locations To connect the Global user IP network port Global user IP network portComputer video compensation for details Computer system via CAMTo connect a computer system To connect a modem or Isdn adapter Modem/ISDN portTo connect the power supply Power in connectionTo connect and address the switch boxes Power control portSee also Cascading multiple unitsSystem, called Adder Port Direct How cascade connections operate CA02 Addressing computers in a cascadeTo connect units in cascade Connecting AdderView CATx units in cascadeTips for successful cascading To test a specific link Using cascaded computersTesting specific links to cascaded computers Multiple video head connections Host computer port/channel Video off Remote switching controlOverall initial configuration To access the configuration menu local and remote users Configuration menusTo access the configuration menu global users HotkeysConfiguration menus layout General security and configuration stepsTo enable general security To set an Admin passwordTo create/edit user accounts Access to all computers Press Access to no computers PressRegistering users edit user list To create/edit computer entries Tips when creating/editing computer entriesRegistering computers edit computer list Video compensation See Remote user skew adjustment for detailsTo apply computer video compensation Computer video compensationTo display a suitable high contrast image Remote user video compensationTo apply remote user video compensation If the image controls cannot provide a crisp imageTo use skew adjustment Remote user skew adjustmentUsing the supplied skew pattern Creating a skew test patternNum Lock for Red, Caps Lock for Green Autoscanning To select an autoscan modeTo select an autoscan period To define an autoscan listTo transfer configuration settings Saving and restoring configuration settingsPreparations for configuration save/load Hints for editing To edit the configuration settingsTo reset AdderView CATx models What to do if the Admin password has been forgottenTo reset the AdderView CATx IP models Configuration screensTo restore mouse operation when hot plugging Which restore setting do I use?Hot plugging and mouse restoration Recognising an IntelliMouse-style mouseTo configure IP-specific settings Initial IP configurationTo use the initial IP-configuration sequence User Accounts IP configuration by global userTo configure IP details from a global user location Viewer encryption settings Encryption settingsAdderView CATx IP encryption settings Positioning AdderView CATx IP in the network Networking issuesAddressing Port settingsPlacing AdderView CATx IP behind a router or firewall DNS addressing To discover a DHCP-allocated IP addressPlacing AdderView CATx IP alongside the firewall By configuration page via viewerEnsuring sufficient security PortsPower control sequences Power switching configurationTo configure the power sequences for each host computer To control two or more ports simultaneouslyKvmadmin command ip address parameters Kvmadmin utilityKvmadmin -getconfig kvm1.cfg Kvmadmin -setusers users.csvItems required to use the upgrade utility Performing upgradesUpgrading AdderView CATx models and CAMs To use the KVM Firmware Uploader utilitySelect the upgrade file to be used Select the items to be upgradedCommence the upgrade Issues to consider when performing flash upgradesUpgrading AdderView CATx IP models To upgrade AdderView CATx IP modelsFront panel controls Accessing the AdderView CATxAdderView CATx models AdderView CATx IP modelsTo gain access as a local or remote user Local and remote user accessTo select a computer using the front panel controls Selecting a computerStandard hotkeys To select a computer using hotkeysAbove or for even longer cascaded computers Keep Pressed down until all other Numbers have been enteredTo select a computer using mouse buttons Advanced method To select a computer using the on-screen menuTo select a computer using mouse buttons Confirmation box Logging in and outSelecting cascaded computers To use the Routing status feature To change banner colours or disable the bannerReminder banner Routing statusUser preferences and functions Power switching via configuration menuTo switch a computer on or off Global user access To download the VNC viewer Global user access via VNC viewerTo access via the VNC viewer To access via your web browser Global user access via web browserMenu bar Using the viewer windowWhen using the viewer window Mouse pointers ConfigureHost selection To select a hostPower switching via viewer Access mode shared/privateAuto calibrate Re-synchronise mouseControls Single Mouse ModeMouse Control Resync MouseVideo Settings When entering codesKVM switch menu Keyboard ControlIncreased by 50% when a slow link is detected Using automatic configurationsSetting the Threshold manually System informationIf you need to enter a port number Access via dial up modem or Isdn linkTo initiate a dial up link To enter a port number in a Web browserSupported web browsers Viewer encryption settingsWindows LinuxWhen logging on using VNC viewer, I cannot enter a username TroubleshootingGetting assistance US +1 888 275Configure IP port Appendix 1 Configuration menusTo access the configuration menus Functions User Preferences Autoscan Mode Mouse SwitchingGlobal Preferences Screen SaverOSD Dwell Time User TimeoutRS232 Mouse Type Mouse TypeKeypad Controls Setup OptionsLanguage Exclusive UseAutomatic Logout Settings AUTO, ManualAudio Add ComputersDDC Refresh Settings AT START, Disabled DDC Source Settings AUTO, LOCAL, DefaultAdvanced Options DDC OptionsDefault Country Country Code Settings AUTO, MANUAL, DisabledSetup Options Force Mode Settings DISABLED, EnabledIP admin password, encryption settings, etc Configure IP portIP address, net mask, VNC port, etc Baud rate, initialisation string, etcUnit Configuration Network Configuration Modem Configuration Reset Configuration Clearing IP access controlTo reset the AdderView CATx IP configuration What is IP access control?To access the remote configuration pages Appendix 2 Configuration pages via viewerUser accounts Admin Password Unit configurationHardware Version Firmware VersionAdvanced unit configuration Time & date configuration IP Access Control Network configurationIP Network Mask IP GatewayTo define a new IP access control entry Setting IP access controlTo reorder access control entries To edit/remove access control entriesModem port Serial port configurationPower control port Erase Host Configuration Host configurationAdd entry for unrecognised host To create a new host entryExamples Port/host addressing using Adder Port DirectAdder Port Direct To copy and paste the log Logging and statusSyslog Server IP Address For further details To get hereColour/Encoding Appendix 3 VNC viewer connection optionsAuto select Preferred encodingDisable all inputs view-only mode Enable all inputsInputs CustomiseMisc ScalingDefaults Save Defaults ReloadIdentities Load / SaveAppendix 4 VNC viewer window options Security Appendix 5 Browser viewer optionsEncoding and colour level IP addresses Appendix 6 Addresses, masks and portsNet masks Want to know more?Net masks the binary explanation 154Single locations Calculating the mask for IP access controlAll locations Address rangesPorts Security issues with portsRS232 serial flash upgrade cable Appendix 7 Cable and connector specificationsPower switch to power switch daisy chain cable Multi-head synchronisation cable Creating macro sequences Appendix 8 Hotkey sequence codesPermissible key presses Appendix 9 Supported video modes General Public License Linux WarrantySafety information End user licence agreement European EMC directive 89/336/EEC Radio Frequency EnergyFCC Compliance Statement United States Canadian Department of Communications RFI statement111 Index 113 114
Top Page Image Contents