Gefen GEF-DVIKVM-848DL user manual Edid Management, EDID. What is it and what is it used for?

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EDID MANAGEMENT

EDID. What is it and what is it used for?

Under normal circumstances, a source device (digital and analog) will require information about a connected device/monitor to assess what resolutions and features are available. The source can then tailor its output to send only resolutions and features that are compatible with the attached device/monitor. This information is called EDID (Extended Display Information Data) and a source device can only accept and read one EDID from a connected device/ monitor. Likewise, the source an only output one resolution for use by a connected device/monitor.

Why is EDID so important with the 8x8 DVI KVM Dual Link Matrix?

The 8x8 DVI KVM Dual Link Matrix is a complex piece of technology that replicates and switches between multiple inputs and outputs. Each connected source device will require one EDID to read. EDID management is carefully handled by the 8x8 DVI KVM Dual Link Matrix to provide a single EDID for each source to read.

What options do I have to manage the EDID in the 8x8 DVI KVM Dual Link Matrix?

First, it is important to note that each source device can only output one video/ audio signal type. This includes resolutions and timings. When multiple devices/ monitors are used, such as with the 8x8 DVI KVM Dual Link Matrix, it is important to use devices/monitors that have similar or compatible resolutions and features. This will ensure that the single video/audio signal produced by the source device is accepted by all of the connected output devices/monitors.

The user has the option, through utilization of the RS-232 serial interface, to choose how the unit will manage the EDID from multiple DVI devices/monitors. Therefore the user has some control over the resolutions and features that the source devices will output. The 8x8 DVI KVM Dual Link Matrix has a Local EDID management mode that will control how the EDID information is handled.

How do I change EDID modes in the 8x8 DVI KVM Dual Link Matrix?

EDID modes are managed via the RS-232 serial communications port. See page 17 for more information on the RS-232 serial communication features.

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Contents 8x8 DVI KVM Dual Link Matrix Technical Support Hours Asking for AssistanceTechnical Support Write ToContents GefenPRO 8x8 DVI KVM Dual Link Matrix IntroductionGefenPRO How It WorksOperation Notes Features FeaturesPackage Includes Panel Layout Front PanelPanel Descriptions Control ButtonsBack Panel 1110 1 2 3 Back Panel RS-232 Serial PortConnecting the 8X8 DVI KVM Dual Link Matrix How to Connect the GefenPRO 8x8 DVI KVM Dual Link MatrixHow to Operate the GefenPRO 8x8 DVI KVM Dual Link Matrix Main Display Displaying the Bootloader VersionFront Panel Display Displaying the Firmware VersionDisplaying the Routing Status Routing SourcesRemote Control Unit Monitor and Source Selection Buttons 1IR Remote Installation Installing the RMT-16IR BatteryEmpty Battery Slot IR Remote Configuration Setting the IR Remote Control ChannelUsing the IR Remote Control Unit IR Remote Control Key MappingEDID. What is it and what is it used for? Edid ManagementRS-232 Serial Control 3 2 3 4RS-232 Features Functions Syntax#EDIDDSTOBA Function #EDIDDSTOLO Function#EDIDDSTOLO param1 param2 param3...param9 #EDIDDSTOBA param1 param2#EDIDDETOLO Function #EDIDBATOLO Function#EDIDBATOLO param1 param2 param3...param9 #EDIDDETOLO param1 param2 param3...param9#LOEDIDTOLO Function #LOCKEDID Function#LOCKEDID param1 #LOEDIDTOLO param1 param2 param3#PRDSEDID Function #PRLOEDID Function#PRBAEDID Function #PREDIDST Function #PRWEBADD Function#RSTIP Function #SIPADD Function#SIPADD param1 param2 param3 param4 #SGATEWAY Function #SNETMASK Function#SNETMASK param1 param2 param3 param4 #SGATEWAY param1 param2 param3 param4#SPORT param1 #FADEFAULT Function #ACTIVEBOLO Function#MASKOUT Function #LOCKPOWER Function#LOCKPOWER param1 #MASKOUT param1 param2#STBYMODE Function #RMTIRADD Function#RMTIRADD param1 #STBYMODE param1Param1 param2 Commands Command DescriptionCommand Param1Syntax Parameters None IP Control View Matrix StatusManage Edid Copy Edid Edid Lock StateManage Edid Set Input to Default Edid Manage Edid Copy Edid Manage Edid Edid Lock State Masking IP Configuration Backup / Restore Power ManagementFirmware Update Firmware Update Procedure========================================================= Waiting for the file to be sent ... press ‘a’ to abort Programming Completed SuccessfullyRack Mount Safety Information Specifications Warranty Product RegistrationLicensing Page Rev A6 Nordhoff St., Chatsworth CA