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| Draco media Remote Unit |
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New Flat screens for legacy graphic sources The plug & play compatible devices support input signals for RGB, CGA, MDA, or EGA- graphic cards. Additionally, this device allows converting VGA or video signals to DVI, so many different graphic signals may be displayed on a modern DVI display. The device contains more than 80 preinstalled video modes and using the friendly On Screen Display (OSD) makes it easy to setup signals of a previously unknown sources. The RGB to VGA/DVI Converter is mainly used to keep older PC systems alive when the old CRT monitor has failed. In systems, where the process reliability of older PC environments or of programmable logic controllers is the main focus, this is often the only way to keep the total system running thus saving money by preventing expensive investments in new equipment. The performance of a CRT monitor is determined by two main parameters: the signal type - VGA, RGB, FBAS, SVHS, ... and the synchronization frequencies - HSYNC and VSYNC. To display an RGB signal, standard VGA-screens need Red, Green and Blue as analog signals with 0.7Vpp and synchronization signals as TTLsignals in a range for HSYNC of 30kHz up to more than 100kHz and for VSYNC of 50Hz up to more than 120Hz. The use of TFT-Monitors with RGB or EGA signals can be difficult: as these monitors must digitize the incoming video signals and display the result. To do this, the monitor needs to be given the exact count of pixels per line and the phase of the pixels. Many flat screens only operate within the standards produced as VESA resolutions and some screens may not recognize the resolution at the output of the RGB to VGA converter. The RGB to DVI/VGA Converter displays the signals of an RGB or EGA source into a format that can be shown on a traditional CRT with VGA connector as well as on a flat screen with a DVI connector.
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