A Rundown of the DVI Cable
One of the more confusing cable types frequently used with electronics today is the DVI cable. The past video cable standard was the VGA cable, a simple cable that passed an analog signal between devices. It has since been replaced by the DVI cable as the standard as has been required by the integration of so many digital devices.
The reason that the DVI cable is so confusing is that there is more than one kind of DVI cable. In fact, there are three definite DVI cable types. The strictly digital form of cable is the DVI-D cable, the analog form is DVD-A, and the integration of both cable types is called DVI-I. As each of these indicates, the cable is only capable of handling signals from their respective types.
A shared misconception of these types of video cables is that they can adapt video signal from digital to analog or vice versa. And while there are certainly DVI to VGA splitters, this has to be done with either a DVI-A or DVI-I cable kind.
already though Integrated DVI is able to transmit both digital and analog signals, it cannot accomplish this at the same time, the signal must be one or the other. Although this seems slightly restricting, it is one of the few cables that is able to ease both signal types. This is useful when you are uncertain what output characterize will be used, or in situations when the characterize changes frequently.
Although the DVI cable was produced to replace the legacy VGA analog standard, it too is beginning to be phased out of production. More and more devices are turning to the HDMI cable standard for their electronics.
One of the dominant advantages of the HDMI cable over the DVI standard is the ability to transmit audio along the same cable. This is very advantageous for many consumer electronic devices such as televisions, projectors, and DVD/BluRay players. HDMI is also capable of much longer transmission lengths than the standard 5 meters required by DVI specifications. Only a few of the higher end home electronic devices ever integrated the DVI standard, and have since been transitioning to HDMI for their digital signals.
Converting from DVI to HDMI is often simpler than the opposite conversion of DVI to VGA. As both flows are digital, the video is quite simply converted by the cable ends. Some will already attempt to integrate a separate audio source into the adapter to complete the HDMI output on the other end. in any case you application, it is important to understand the various types of DVI obtainable on the market. Devices do not do well with cross-integration, and may simply not work with the wrong cable kind.