What isconcentrator

If you’re in the IT field, you might have come across the term “concentrator” before. But what is it exactly? Simply put, a concentrator is a device that collects and forwards data packets within a data network. It can also manage dial-up Internet connections and act as a network router. The term “concentrator” is often used to refer to all of these tasks.

How Concentrators Work

In local area networks (LANs), concentrators are used to aggregate transmissions from a group of nodes. This is often referred to as a hub or MAU. They can also be used to place buffered packets in a single queue, taking packets from FIFO buffers and placing them in a position for linear processing.

Concentrators can also combine multiple channels on a single transmission medium, allowing all individual channels to be active simultaneously. This is commonly used by internet service providers to bundle dial-up modem connections onto faster T-1 lines connected to the internet.

Concentrators in LANs

When hubs or concentrators are used in a LAN, all computers share the local network and its bandwidth. This is particularly useful in offices where multiple devices need to connect to one another for information exchange.

Benefits of Using Concentrators

By aggregating multiple data streams into one service point, concentrators help to streamline network traffic and improve overall network efficiency. They can also be used as a troubleshooting tool, allowing system administrators to verify that signals are being picked up and outputted correctly.


In short, concentrators play an essential role in data networks, providing an efficient and effective way to manage and direct data packets. By utilizing a concentrator, IT professionals can improve network speed, performance, and reliability.


What is the difference between a concentrator and a hub?

Technically, a concentrator and a hub have the same function in a network – to combine multiple data streams into one. However, “concentrator” is often used in the context of wide area networks, while “hub” is more commonly used for local area networks.

How can concentrators improve network performance?

Concentrators help to streamline network traffic by aggregating multiple data streams into one service point. This reduces the number of packets traveling through the network and can improve network speed and efficiency.

What type of connections can a concentrator manage?

A concentrator can manage various dial-up Internet connections and act as a network router. It can also collect and forward data packets within a system.

Final Thoughts

Overall, concentrators are an essential component of data networks, allowing IT professionals to manage and direct data packets with ease. Whether you’re working with a LAN or a wide area network, a concentrator can provide the performance and efficiency you need to keep things running smoothly.

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