What are Wired and Wireless Transmission Media?
This question has a close relationship with technology, especially those related to computer networks.
Some examples that can be seen directly are the use of Wi-Fi and simple networks in internet cafes.
It can be seen that a device can be connected to Wi-Fi without any intermediary (wireless). Then on the other hand, there are also examples of the relationship between computer hardware using cable media.
There are only two types of models of transmission media for now, namely Wired and Wireless Media. If a network does not use cable, it is certain that the network uses wireless media, and vice versa.
Both types of course have various types, advantages and disadvantages of each.
And in this article, we will discuss further about the three topics that exist in the two types of transmission media that have been introduced earlier.
Without further ado, let’s discuss.
Wired Media (Wired Media)
From the name alone, it can be guessed that this one transmission medium uses a thin and long object known as a cable.
Although both use cables, Cooper Media itself has several other types depending on the signal or material that runs on the cable.
Up to now, there are three types of cable transmission media. They are Twisted Pair Cable, Coaxial Cable and the last is Fiber Optic Cable.
And in the following paragraphs, the three types will be briefly explained.
This type of cable is a cable that uses copper as its main core, this cable is called a twisted pair because in it there are 8 smaller cables divided into 4 color pairs and the eight cables are twisted or spirally rolled into one.
If you’re curious, you can look for pictures on the internet or cut the cable directly, as long as you don’t cut other people’s cables.
One cable can be found in the school’s computer laboratory or in the aforementioned internet cafe.
The use of this cable is recommended only up to 100 meters, this is still a theory because in practice it can be influenced by many things.
b. Kick (Coaxial)
Axis Cable uses the same material as Twisted Pair, namely copper. This type of cable is often found on television networks that are paired with an antenna. According to theory, this cable can be used up to a distance of 100 to 400 meters.
c. Fiber Glass (Fiber Optic)
After discussing cables that use copper, glass fiber cables actually use glass as the core of the cable, this is because the signal carried in the cable is converted into light.
The light in the cable will continue to move by using the reflection of the light.
Those were some types of cable media, and here are the advantages and disadvantages.
a. Easy to map, because the shape can be seen with the naked eye.
b. Generally less expenses.
c. Faster than wireless media.
d. More guaranteed security.
a. It takes up a lot of space because it has a physical form.
b. Lack of mobility or difficulty moving. The longer the cable, the longer it will take to wind it.
c. Because it can be seen with the naked eye, it will be easier for physical interference such as being cut.
d. More time consuming installation.
Wired Media is done, now on to Wireless Media.
Wireless Media (Wireless Media)
This transmission medium is the “opposite” of media with cables, this media uses air as an intermediary, in other words that this media does not have a physical form.
It should be understood that only media that do not have a physical form, for objects that serve as transmitters only have a physical form.
There are of course several more types of Wireless Media, and each one has its own capabilities and is used for different things.
Some of these types include:
a. Radio Wave
This media uses waves that come from electromagnetic activity, so how strong the waves are will be in line with how much electricity can be provided. An example of the use of radio waves is the use of Wi-Fi.
Radio waves also have another type called microwave (microwave), although both are radio waves, microwave itself is rarely used in a computer network.
b. Light or Light
Not only wired media can transmit signals in the form of light, wireless media can also use infrared light, for example. The most common example of using infrared light is the use of a TV remote.
In addition to infrared rays, there is a new transmission medium called Li-Fi. Li-Fi itself is not far from Wi-fi, it’s just that Li-Fi distributes signals through light. The way it works is similar to how a light bulb works, but unfortunately this technology has not yet appeared to the public.
The advantages or disadvantages of wireless media include:
a. Easy to move, only need to move the transmitting device.
b. Connected devices are not limited by the large number of ports.
c. Because it has no physical form (except the transmitter), this media does not take up much space.
d. Easy mobility and just enough to move the transmitting device or the device that receives the signal, for example a smartphone that can be carried anywhere as long as it is still in the transmitter coverage area.
e. Easier installation.
a. Requires more electricity than cable media, because the signal strength will be greatly influenced by electricity.
b. Less speed when compared to cable media.
c. Lack of security, therefore most wireless networks are password protected.
d. Easily interfered with things like weather and solids.
e. The cost of transmitting devices is not cheap.
f. Not recommended for very long distances, approx. 1 kilometer
The following is an explanation of wired and wireless media, both of which have many types and their respective advantages or disadvantages, therefore their use is not always effective for all things.
That’s all for this article, please submit comments or suggestions using the comments column. Thank you.