A computer system is not just the traditional setup of monitor, keyboard, sound system, and mouse anymore. We connect that one monitor to a projector, an additional monitor, or another type of visual output device. Bluetooth has made it easy to connect all these wirelessly. Should we need wired connections, which may prove to be more secure in that they maintain the connection without disruptions, there are specific types of cables whose main purpose is to transmit video.
The two main types of connectors are DVI and VGA. Let’s delve into them more. DVI Connector DVI stands for Digital Visual Interface. DVIs are considered distinctive because they can carry both digital and analog signals and give a sharp picture quality. These connectors are relatively newer and usually come in white or gray. A big advantage of DVI connectors is that they can be plugged into your source device without the hassle of shutting it down. Just plug it in while the source device is in use, and the display flow should be seamless. These connections are typically wide and consist of twenty-nine or twenty-five pins. DVI cables are available in three types, each with its own function:
VGA Connector VGA stands for Video Graphics Array. Unlike the DVI connectors, which transmit both analog and digital signals, the VGA cable only transfer analog signals, making this technology old-school. Created and distributed by IBM in 1987, it was primarily used for computer monitors and TV sets. VGA connectors consist of fifteen pins with three rows of five pins each. Every one of these pins has a unique function. The first row of these pins transfers the color red, the second row transfers green, and the last row transfers the color blue. If we were to compare these two connectors on the basis of release dates, the DVI would be the new kid on the block, having come out in 1991. As mentioned earlier, VGA came out in 1987. Now, let’s see which is better, DVI or VGA. To more about Difference Between DVI and VGA click on below button.
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The sound of life is the sound of music. People love to have some background music playing at either key moments of their lives (for dramatic effect) or just when they do day-to-day chores. We love a little playlist when working out, during road trips, and, most importantly, going to concerts. What the layperson experiences at a concert is a whole different conversation, and what goes on behind the scenes is a whole different story. It involves not only the musician, but the turntables, the sound system, the instruments, and, most essential of all, the cables that bring the whole show home.
But things are not as harmonious as they seem. Your setup is only as seamless as your strongest cable. Whether you want to connect your bass guitar, your microphone, or your epic turntable system, you need the best cables available. Let’s learn more about the cables that carry audio signals and deliver a melody. The cables that transmit audio signals can be put into two broad categories: balanced and unbalanced cables. Balanced Cables Three wires make up a balanced cable: two pairs that carry the same signal, one with an opposing polarity, and the remaining would connect the grounds and shields. An unbalanced cable is made up of only two wires, so the balanced cable has an advantage over it with its additional wire. The advantage it has is that the devices that use balanced cables can decipher the signal, overlooking any interference on the receiving end. The interfering cable will affect both wires the same way, so when reassembled, its presence is canceled out. This is the reason why balanced cables are used in live studio setups. The following are some common balanced connector types:
Unbalanced Cables All you need to transmit audio the standard method of transmission is via unbalanced cables. They have one less wire than the balanced cables, which have three wires. When dealing with instruments or audio cables, an unbalanced cable would have a hot wire that transmits the signal and a shield. If it's a speaker cable, then it would just have a pair of wires without the shield. The issue with the design of the unbalanced cable is that it is susceptible to noise and interference. At the core of these cables is a long piece of metal, and there is nothing like a long, thin piece of metal to act like a radio antenna. It is advisable to use balanced cables should you want to have run times of a considerable distance with no noise, interference, or degradation. Following are some common types of unbalanced cables:
Instrument vs. Speaker Cables One cannot use an instrument cable instead of a speaker cable, and vice versa, even though they look the same. Speaker cables are made of two wires, while the instrument cables have a wire and a shield. One can technically use a speaker cable as an instrument cable; there would be a lot of noise from interference, but it’s doable. But you should try to do it the other way around. This can work at low levels for a short time, but at high levels, it will distort the signal completely, in addition to heating up. The insulation would melt and result in an electrical short. Let’s go through the common speaker connectors:
Conclusion No matter how you like your music, whether you make it, love to scream along with your favorite musicians, or vibe to whatever the DJ is putting on, now you will appreciate the thought and work that is put into finding the correct cable. Cables make those dulcet sounds you love; the cables maintain the smooth flow from the beat drop to the guitar riff. Visit: https://www.sfcable.com/blog/musical-cables-brief-guide Computer technology, since its invention in the early 20th century, has been steadily moving forward. It evolves, adapts, and, should the need be, shrinks. Before, a computer unit used to need a lot of space, a room’s worth of space. Over the years, we’ve done away with that while still maintaining the functions it does smoothly. Nowadays, we do not require four to six cables to transmit various data types and make our workplace look cluttered. We have a single type of cable that can achieve this while being placed out of sight: riser cable.
Technically, when one needs to put away wires out of view, there are two types of cables they can buy: CMR and CMP. The ones that go inside the walls are called riser cables (CMR), and the ones that go inside the plenum space (that space of a building that facilitates air circulation). Riser cables go in the area between floors that do not have plenum spaces. These cables are called so because they rise up from the floor. Riser cables are essential in places that transfer audio, video, and data signals. The industry term for riser cables is ‘CMR,’ which stands for communications riser. CMR has a fire redundant rating so that these riser cables can be put into walls. Commonly, the materials used to make these cable jackets are flame-resistant PVC and insulation surrounding the wires made of Polyolefin. Since these materials are heat resistant, they help to prevent the spread of flames in case of a fire and do not hinder performance at high temperatures. Riser cables are not only used in commercial settings. They can be a staple of households as well. They can be installed in walls and floors/ceilings of a house and can run floor to floor, used to connect computers to switches, routers to computers, and the like. The construction of the cables is very crucial because one needs them to run for a long time and over a long distance, and most of these cables have a solid conductor. If you need to put these cables in walls and run them over a long distance, then you need them to have solid conductors as they provide a good signal strength. There are different ways to connect this type of cable. They can connect to RJ45s and keystone jacks. The best connector for your specific situation can be determined by the cable, location, and type of installation. Riser cables are available in various categories of copper ethernet cables, starting from Cat5e ethernet cable to Cat8. Each category has its own specific capabilities and capacity and is used for certain speeds and applications. Riser cables don’t just come in different categories but also in different structures. You can get them in shielded or unshielded versions. You need the unshielded version for everyday use in homes and places with no EMI (electromagnetic interference). You should go for the shielded version for places with high EMI, like near towers, heavy machinery, and doctors’ offices. The unshielded structure type usually seen in riser cables is UTP, which stands for Unshielded Twisted Pair. There are shielded riser cables which are commonly known as F/UTP or FTP, meaning Foil Twisted Pair. The shielded version has an overall layer of aluminum over the copper wire. This is the essential layer that protects you against EMI. If you need a shielded cable, ensure that your entire channel comprises shielded connectivity, including RJ45s and keystone jacks. Visit: https://www.sfcable.com/blog/riser-cable-brief |
AuthorI am a Network administrator as an IT professional, Happy to help you to provide accurate and up-to-date information on networking cables. Archives
March 2024
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