Bus topology is an electrical engineering field that uses the concept of conducting a power supply over a closed or open bus and then connects those nodes to one another. A bus network topology is also known as a non-parabolic network topology where nodes are connected to a common central half-space called a bus. The central bus may have one or more attached nodes.

Bus network topology is used in the Lan (Local Area Network) where different Nodes- are connected to a special kind of cable Link. In this topology, all the nodes are connected through a single cable called its ‘backbone’. When this backbone is damaged, the entire network ends.

A bus network topology has a kind of terminator at each end to determine whether the network is working properly. It is very simple as compared to other topologies because it is very easy to arrange.

The way in which all the devices in a network will be connected to each other is called topology. In other words, the arrangement of computers in a network is called topology.

Definition

This topology does its job as Nodes servers and data moves from one end in a Single Direction to the other end. The data is removed from the line by the terminator on reaching the end of the data.

In this, a Coaxial Cable / Rj-45 Cable is used to connect various types of devices.

Bus network topology handles the data transmitted through the cable as the data goes to each node. After which the node checks the Destination Address (Mac / Ip Address), by which it is known whether it meets that address or not. 

Topology in computer networks

In the bus Network topology that is used in computer networks, all the computers are connected only by a single cable. By the way, Ethernet cable is used in bus Network topology. 

Under this topology, the desired information for the last node has to pass through all the computers present in the network. If you compare bus network topology with other Topologies, then it does not require extra cable at the time of its installation. 

Also, if another node in the network stops or stops its work, then the remaining nodes will still work, so it is very easy to add new nodes to the network. 

If networking is to be done over a long distance, then there is also a possibility of data loss, for which this topology is not suitable. This is good for short distance networking This topology does not work for nodes spread in different directions. If Extra Devices are added to it, then the data transfer will be at a slow speed. 

Bus Network topology network access

Do you know where bus Network topology is used?

Talking about the use of Bus Network Topologies, they are used when cheap, small and temporary networks are required. Which has nothing to do with the fast speed of data transfer. Which can work even on slow data transfer.

Mostly this network is used only in places like Laboratory and Office.

Concepts and Features

The main concepts are covered in Bus Network Topology.

  • Backbone Cable – The cable used as Backbone Cable is a Coaxial Cable. Backbone cable is just a type of cable that connects all the network nodes with a cable so that the bus topology is present.
  • Drop Link – Drop Link is a kind of patch cable which is used to make a lane to move signals. Drop Link is important in attaching Network Node to Backbone Cable.
  • Terminator – This is a type of device, which is used to connect one end of the cable to absorb the signal. So that Signal Reflection can be avoided.
  • Node – Node is a kind of server, computer network or client. It performs a variety of functions. Its main role is Server, Client and Intermediate Node.

Bus Topology Examples

There are also some main examples of bus Network topology networks such as,

  • Bus topology is used by Ethernet networks. 
  • The main function of the server is to exchange information between different types of client computers.
  • In bus topology, one computer acts as a server and the other as a client. 
  • A bus topology is used to connect two floors by using a single line . 
  • Bus topology is used to connect printers, I/O devices in office or home. 

A defination in Nutsheel

  • A bus topology includes several different forms including multilayer, three-layer, four-layer, network topologies. Each form has different advantages. In a multilayer bus topology, one computer device is placed in the center of the multilayer while the other devices are positioned around it.

In a three-layer bus networks topology, the wires are installed in pairs along with the three layers of the device. This is the least expensive of all the forms. In a four-layer bus topology, the wires are installed in more pairs than the three layers. This is the most expensive of all the types of bus topologies.

The most important advantage of a bus topology is it’s low cost when compared to other types. All the devices inside the device must connect to each other. The advantage of the star topology is that data can be transmitted faster and distances between computers are smaller. On the other hand, a disadvantage of a star topology is that it creates a stronger electromagnetic field than a fibre optic cable which causes interference in some applications.

Benefits

There are several advantages to using bus topology. Among these advantages are the use of lighter and smaller electronics, reduction in space needed for distribution, and the ability to handle very high frequency currents. Another advantage is that there is less voltage requirement for high frequencies compared to traditional cable wiring methods.

Video Credit: Education 4u

In a bus networks topology, the computer network devices are housed in a hub which is similar to the housing of a computer. The major advantage of this type of wiring is that it provides the devices with their own isolated “safe” ground and eliminates the dangers of shock or electrostatic charges. Another advantage of this type of system is that it allows fast data input/output. This enables faster data transmission rates when multiple devices are located on a single bus. In addition, the number of devices can be increased without any major disadvantages.

There are also advantages of using Bus Topology which has been told to you further. 

  • It uses less cabling than other network topologies. Because of which this cost is effective.
  • This is the best topology for small networks.
  • It is very easy to extend the cable by connecting it to the connector and repeater.
  • It is very easy to connect and disconnect devices in the network without disturbing other devices.
  • If a computer or device fails, it will not affect other devices or networks in any way.
  • It is very easy to implement Bus Topology and add more nodes to the network.
  • It is very simple to understand it.

What is bus topology disadvantages?

There are also some disadvantages of Bus Network Topology which have been told to you further.

  • If network traffic or devices increase then network performance decreases.
  • Cables are only of limited length.
  • If one main cable is damaged, the entire network fails.
  • When the entire network is down, it becomes difficult to identify the problem.
  • The chances of data clash are high when the network is slow.

FAQ

What is bus topology with example?

A bus topology is also known as a non-parabolic network topology where nodes are connected to a common central half-space called a bus. The central bus may have one or more attached nodes. Nodes in Bus Networks Topology work as servers, which transmit data from one end to the other in a single direction.

What is bus topology used for? 

This network is mostly used in the office or laboratory. 

What is Bus Topology in Computer Network?

In the Bus Topology of Computer Network, all the computers are connected by a single cable only.

What is a bus in bus topology?

In a bus topology, the bus major is called the backbone cable. All devices are connected with this cable only.

What is bus topology and its advantages and disadvantages?

Explained above.

What is bus topology with diagram?

Closing Notes

These are the most important advantages and disadvantages of this topology. You can take these factors into consideration if you are planning to implement these in your business or office. However, you should keep in mind that the decision for your system depends on your situation and application. For instance, the advantages of star topologies are more flexible since you can add modules and cables without reconfiguring your entire structure.

A bus networks topology consists of a network where one or more computers are placed in an array. When a signal reaches one of the computers, it travels through the wiring until it reaches the last computer in the array. In this type, signals can be transmitted at higher bandwidths and with better signal integrity. However, these features come at a cost as these types of networks are more expensive to install.

What did you learn today

I sincerely hope that I have given you complete information about what is bus networks topology. And I hope you guys have understood about bus topology.

I request all of you readers that you also share this information in your neighbourhood, relatives, your friends so that there will be awareness among us and everyone will benefit a lot from it. I need your cooperation so that I can pass on more new information to you guys.

It has always been my endeavour that I should always help my readers if you people have any doubts, then you can feel free to ask me. I will definitely try to solve those doubts.

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Raushan Kumar
A Cook, Software analyst & Blogger.

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