Tech

Beginner’s Guide For Understanding the Basics of Digital Video Interface Cables

The Digital Video Interface cable known as DVI is mostly used in the new generation video interface technology. It maximizes the quality of viewing in modern graphics cards and flat LCD screens. These types of cables mostly serve the computer segment. Mentioned below is the brief guide to give you a better understanding of the cable system.

Basics of DVI formats

The DVI cable eliminate the system of analogue conversion of videos from digital signals as it used to be in earlier VGA outputs. It provides direct digital connections link between LCD monitors and the source video. The Primecables with its online presence in the digital media provides the best quality cables to give an experience of high-quality streaming.

Cables types

Below are some of the popular cable types.

DVI-D Cables

This type of cable is used to connect video cards directly to the LCD screen. The digital video signal is produced by video cards (source). This gets converted to an analog signal at the VGA end and accepted by the monitor. The monitor reconverts it into a digital signal.

DVI-A

This type of cable is used when the source output has DVI port and input has VGA port. Since there is a digital to analog conversion, you will find quality loss in viewing. This type of cable is typically connected to a CRT monitor or low budget screens.

DVI-I

This cable provides the best of both the analog and digital worlds. It transmits analog-to-analog signal or digital-to-digital signals.

All the above cables cannot be used in place of another and are not interchangeable in the sense that you cannot use DVI-D cable to connect the analog system, DVI-A to the digital system.

Length perspective

As per the digital video interface cable standards, the cable can run up to 5 meters of maximum length. To get the maximum length, few manufacturers incorporate bigger monitors and stronger cards. You might experience viewing issues such as sparkling pixels, artifacts, flickering, and shaking for any cable-related issues. You can avoid length issues by using DVI-I cables or use signal boosters.

Choosing the cable

Before purchasing any cables, you will have to find out the DVI plugs connected to both the source and display.

Recognizing the cable

DVI-D 

Single Link and Dual link cables, both have a solid flat blade. The difference lies in the set of pins. The former has 2 sets of 9 pins whereas the latter has 3 rows of 8 pins.

DIV-A

There are four contacts around the blade with 1 set of 8 pins and another set with 4 pins.

DVI-I

Both the single link and dual-link cables are similar to DVI-D cable with the addition of 4 contacts around the blade.

Few projectors, Vesa display has pin-out that can carry both signal – analogue and digital with data. This type of connector is known as M1 connectors and has DVI style connectors.

Thus, before connecting any source and display, the right cabling should be selected. If the pinouts (male & female) do not properly fit each other, you might be having trouble with the cable type. Go for the standard make cable available with the product instead of going opting for a customized solution.

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Hemant Kumar
Hemant Kumar is a project manager at Tridindia with more than nine years of commendable experience in writing about LMS, translation, and IT. His unmatched talent and passion for digital marketing gave him the opportunity to work as a multi-tasking project manager at TridIndia’s sister company, Link Building Corp. Today, he contributes to the world by imparting knowledge on SEO, link building and internet marketing etc., that helps business owners grow their online business.