10x4 DVI Dual Link Matrix - Gefen

EDID MANAGEMENT FEATUREEDID. What is it and what is it used for?Under normal circumstances, a source device (digital and analog) will requireinformation about a connected device/display to assess what resolutionsand features are available. The source can then tailor its output to sendonly resolutions and features that are compatible with the attached device/display. This information is called EDID (Extended Display Information Data)and a source device can only accept and read one EDID from a connecteddevice/display. Likewise, the source an only output one resolution for use by aconnected device/display.Why is EDID so important with the 10x4 DVI Dual Link Matrix?The 10x4 DVI Dual Link Matrix is a complex piece of technology that replicatesand switches between multiple inputs and outputs. Each connected sourcedevice will require one EDID to read. EDID management is carefully handled bythe 10x4 DVI Dual Link Matrix to provide a single EDID for each source to read.What options do I have to manage the EDID in the 10x4 DVI Dual LinkMatrix?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/displays are used, such as with the 10x4 DVI Dual Link Matrix, it is important touse devices/displays that have similar or compatible resolutions and features.This will ensure that the single video/audio signal produced by the source deviceis accepted by all of the connected output devices/displays.The user has the option, through utilization of the RS-232 serial interface, tochoose how the unit will manage the EDID from multiple DVI devices/displays.Therefore the user has some control over the resolutions and features that thesource devices will output. The 10x4 DVI Dual Link Matrix has a LOCAL EDIDmanagement mode that will control how the EDID information is handled.How do I change EDID modes in the 10x4 DVI Dual Link Matrix?EDID modes and IP configuration is managed via the RS-232 serialcommunications port. See page 18 for more information on the RS-232 serialcommunication features.17