AMX DXLink Multi-Format Wallplate Instruction Manual Page 138

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Appendix H – EDID Programming
138
Instruction Manual – DXLink™ Twisted Pair Transmitters/Receiver
General Notes for Working with DGX Configuration Software and DXLink TXs
When the DXLink Multi-Format TX is connected to a PC running DGX Configuration Software, the following applies:
DGX Configuration Software displays the connected Transmitter only.
File menu – Select Open File to load an .edid file to the program. Select Save to File to save an .edid file
containing the currently displayed settings in the EDID Programmer view.
Communication menu – Use to change the serial communication settings. This menu also includes the option
to “Refresh Device Lists,” which will refresh the device list in the EDID Programmer tab.
Utilities menu – This menu does not apply to the DXLink Transmitters.
Help menu – Access the Help file for the program, open a link for the Web Update option (to download
updates for the program), and view current version information.
Messages in the bottom pane of the DGX Configuration Software dialog box report status of operations.
Messages can be copied* for technical support purposes.
* Right-click on a message to access a short-cut menu with options to Copy Selected, Copy All, or Clear. When copying
multiple messages: either select consecutive items by holding down the Shift key and clicking the first and last item or
select nonconsecutive items by holding down the Control key and clicking on each item.
EDID Programmer View
From the EDID Programmer view, EDID EEPROM chips for the HD-15 (VGA) connector on the Transmitter can be
re-programmed if necessary.
Note: The EDID Programmer will not work in conjunction with the HDMI connector on the TX.
EDID Overview
EDID (Extended Display Identification Data) is a data structure established by the Video Electronics Standards
Association (VESA) to enable plug-and-play support by enabling easy configuration of a computer’s graphics subsystem
based on the capabilities of the attached display device.
EDID information includes items such as the following:
Manufacturers name
Product type
Supported video resolutions and refresh rates
Color space and filter chromaticity
Detailed timings
When a computer is directly connected to a display device, it can use the display device’s EDID information to
determine an initial compatible video signal to send. With the computer’s display controls, the user can modify this
selection to another compatible signal based on the provided EDID information.
DXLink Equipment and EDID
In cases where the HD-15 (VGA) input on a DXLink Transmitter are used and a resolution incompatibility exists (or if
the source device needs a specific resolution or a limited set of resolutions), the DXLink Transmitters have the ability to
update the VGA EDID emulation file (by updating the EEPROM chip) which comes preloaded with an AMX VGA
EDID set.
The AMX VGA EDID set consists of a number of common EDID settings (for VGA timing details, see page 126). In
most cases, the DXLink Transmitter can be used as is from the factory with no adjustments.
The DGX Configuration Software with EDID programming functionality has been provided for cases where a user
defined VGA EDID set is desired (this must be a subset of the supported input resolutions shown in Appendix E;
see page 126).
The EDID Programmer view can be used for writing user defined VGA EDID data to the DXLink Transmitters HD-15
input.
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