VESA DDC

(redirected from DDC2)

VESA DDC

(VESA Display Data Channel) A VESA standard communications channel between the graphics card and monitor. The DDC is used to pass Extended Display Identification Data (EDID), which is stored in the monitor and describes its characteristics (vendor name, serial number, frequency range, etc.).

DDC requires an additional wire in the cable. The first level implementation (DDC1) provides a unidirectional channel that lets the monitor inform the host of its capabilities. A second bi-directional level (DDC2) allows the host to adjust the monitor. For example, the monitor's switch settings could be put into a software control panel. See VESA DPMS and EDID.
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The laser coder uses an enhanced "Rainbow" version of the field proven Domino DDC2 seven tube laser head, which now can be custom tuned to a particular application range.