Portalsitaro.com – Some people may not know what ‘data transmission’ is. Therefore, in this article, we will provide a brief explanation related to this word.
In addition to the explanation of data transmission, we will also provide information about other things related to this sentence, for example the types of data transmission media, data transmission functions, and also the process. So, please read carefully so that you understand this.
What is Data Transmission
Data transmission is the process of sending data to the recipient of the data using a computer or other electronic media. Before transmitting data, one of the important factors that need to be considered is the configuration aspect of the transmission line.
Configuration of data transmission itself is an attempt to connect one device to another device that will communicate. The configuration process is divided into 2, namely point-to-point configuration and multi-point configuration.
- Point-to-point: Connects specifically two devices that want to communicate. This configuration is often found in parallel transmission, for example communication between two computers in parallel to copy data files.
- Multi-point: A relationship that allows a path to be used by multiple devices to communicate. For example, the configuration of a network with a bus topology, where one data channel (backbone) is connected to several computers.
Data Transmission Line Process
A transmission line is a path for one device to transmit information to another. There are 3 divisions of transmission lines, namely Unicast, Multicast, and Broadcast. Below we will give a little understanding.
- Unicast: contact that occurs between one tool with another tool. For example, calling someone. When the caller calls another phone, the two phones can communicate.
- Multicast: the process of communication that occurs between one device to another. Each connected device can communicate with the device that is contacting it. For example a server on the internet. The server can serve several computers that contact it, and the computer that is contacted can provide a response back to the server earlier.
- Broadcast: the process of sending information from one device to another. The device that receives the information cannot (unnecessarily) respond back to the sender about the information it receives. An example is a television broadcasting station.
There are 2 types of signals in the world of technology, namely ‘analog signals’ and ‘digital signals’. For more details, please see the following explanation:
- Analog Signal: Signals that are wave-like in nature, Always continuous and there is no sudden change between connected signals. This type of signal is an electromagnetic wave that varies continuously, propagates through a medium and depends on the spectrum.
- Digital Signal: the opposite of analog signals, signals of this type have the nature of pulses, intermittent and there is a sudden change between its parts. For example, wifi uses an optical cable line.
Benefits of Data Transmission Media
You need to know, data transmission media is used in some electronic equipment to connect between the sender and the receiver. So, you can exchange data.
Some electronic devices such as telephones, computers, televisions, and radios require a transmission medium in order to receive data. However, every electronic equipment has a different transmission medium in sending data.
Data Transmission Media Type
After knowing the benefits, paths, and understanding of data transmission. The type of transmission media itself consists of 3 media, namely: Guided Transmission Media and also Unguided Transmission Media. Here we will describe the three types of data transmission media.
1. Guided Transmission Media
Guided transmission media or better known as guided transmission media is a network that uses a cable system. This system is also divided into 3 parts, namely Twisted pair cable, Coaxial Cable, and Fiber Optic Glass Cable.
Twisted pair cable consists of two conductors that are combined with the aim of reducing or eliminating electromagnetic interference from outside, such as: electromagnetic radiation from Unshielded Twisted Pair (UTP) cables, and crosstalk that occurs between adjacent cables.
Coaxial Cable (coaxial cable) is a type of cable that uses two conductors. This cable is widely used for transmitting high frequency signals from 300 kHz and above. Because of its ability to transmit high frequencies, the transmission system using coaxial cable has a fairly large channel capacity.
Optical fiber (glass cable) is a transmission line made of glass or plastic that is used to transmit light signals from one place to another. The advantages of glass fiber optic cables include:
- Slimmer shape
- Larger transmission capacity
- Little signal missing
- Data is converted into light signals so it’s faster
- It requires little energy and is non-flammable.
2. Unguided Transmission Media
Unguided transmission media (unguided transmission medium) is a network that uses a wave system. This system is divided into several parts, namely microwave, satellite and infrared.
Microwave: is a form of radio wave that operates at high frequency (in gigahertz), which covers the UHF, SHF and EHF regions. Microwaves are widely used in MAN network systems, internet cafes and internet service providers (ISPs).
Satellite is a transmission medium whose main function is to receive signals from earth stations and forward them to other earth stations. The advantages of satellites in media transmission are as follows:
- Cheaper than deploying intercontinental cables
- Can reach a wide surface of the earth
- Including remote areas with low population
- The increasing telecommunication traffic between continents makes satellite systems quite commercially attractive.
Infrared: can be used for short distance communication, with a speed of 4 Mbps. In its use for remote control, for example remote control on television and other electronic devices.
This is information about what is meant by data transmission and the functions, types and process paths of this media transmission activity. I hope the little info we share is useful for you all. so much