Fibre to the Building (FTTB) NBN Explained

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Updated 29/10/2024
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Written by

Mel Basta

Updated 29/10/2024

What changed?

Added key points to summary.
Our aim is to help you make better informed decisions. That’s why iSelect’s content is produced in accordance with our fact-checking and editorial guidelines.

Reviewed by

Alex Kidman

Find out more about how we make money.

View our Privacy Policy.

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Long story short

1
Understanding fibre to the building

Fibre to the Building (FTTB) connects your building to the NBN network using a fibre optic cable, delivering fast internet connectivity.

2
Speed potential

Expect download speeds of up to 100Mbps with FTTB, providing a more reliable internet connection compared to other options like Fibre to the Node (FTTN).

3
Equipment required

Begin with a VDSL2 compatible modem to initiate your FTTB connection. Many plans include a modem but ensure it’s compatible if purchasing separately.

4
Costs and fees

For new line connections, fees vary across providers and may include set up charges for new developments. Make sure to check with your internet provider for details.

What is Fibre to the Building?

Put simply, Fibre to the Building is the technology used to connect apartment blocks and larger office buildings to the NBN network. As its name suggests, FTTB does this using a combo of your building’s existing technology, and a fibre optic cable fed into the building.  

How does Fibre to the Building (FTTB) actually work?

For the technically minded reader, here’s a slightly more detailed explanation of the ins-and-outs of FTTB: 

Inside your MDU (which stands for Multi Dwelling Unit, and is just a fancy way of saying ‘building’) there will be a communication room that houses an NBN-installed node. A fibre optic line runs to your building and connects to this node.  

From there, the system hooks up to your building’s existing communications cabling which then carries the NBN to each individual apartment or office where it pops out ready to connect you to the wonderful world of the web.  

How is FTTB different from other NBN connections?

The NBN has taken a Multi Technology Mix (MTM) approach to connection methods. This is just a fancy way of saying that there’s lots of different ways to connect to the NBN.  Fibre to the Building (FTTB) shares the same technology with another option, Fibre to the Node (FTTN), which connects homes via street cabinets (or ‘nodes’).  

However, FTTB goes the extra distance and brings the connection all the way to your building, which means there could be less chance of losing a signal due to things like line interference from a FTTN node. Ultimately, though, FTTN and FTTB are quite similar connections. 

There’s also another major MTM technology called Hybrid Fibre Coaxial (HFC). Unlike FTTB/FTTN, it uses coaxial copper cable traditionally used for digital pay TV services.  

If you’re lucky, you’ll be in an area that has Fibre to the Premises (FTTP). FTTP uses fibre optic cables all the way to your premises (eliminating copper entirely, along with many of the speed and stability issues associated with it), giving you the ability to access speeds of up to 1Gbps!  Now that’s fast! 

How fast is Fibre to the Building (FTTB)?

The NBN offers six different speed tiers, but the availability of these speed tiers will depend on the type of technology your premises is connected to, as well as the speed tiers on offer by your phone and/or internet provider. 

There are a range of other factors that can affect the speed of your internet connection, such as your building’s cabling, how your provider configures their network, and how they manage their traffic etc., but with FTTB, you could expect download speeds of up to 100Mbps.

FTTB connections are typically a little more reliable than FTTN ones, because there’s almost always a shorter run of copper wiring from the node in the building to your place, rather than from a node sitting on a residential street nearby.

However, you can still experience outages, whether that’s due to the power going down, repair or maintenance works, or other factors. As such, it’s always wise (and this is true for other NBN connections too) to have a backup plan to stay online, especially if you work from home. A wireless hotspot device, or ensuring you have enough data on your phone’s mobile plan, can get you out of a work problem even if your NBN connection goes down.

Alex Kidman

Tech Journalist

What equipment do I need for an FTTB connection?

The only piece of equipment you’ll need before connecting to the NBN with FTTB is a VDSL2 compatible modem. 

If your existing modem is not compatible, a number of contracted FTTB NBN plans come with a modem included (although there may be a delivery charge), while other providers may be able to offer a compatible modem at a cost. 

If you’re buying a modem independently, it’s wise to ensure that it is VDSL2 compatible – and even wiser to keep the receipt just in case it proves to be less than happy to work with your FTTB connection. 

How do I get an FTTB connection set up?

If you haven’t already been connected to the NBN, you can check your address on the NBN website to see if the NBN network is available in your area, or if it will be available soon. 

Once your area is connected to the NBN, an approved NBN technician may come to your home to test and activate the service in the building before you connect to the NBN with your modem. 

If your home is already connected to the NBN, then you’ll need to get in touch with your preferred internet provider and find a suitable NBN plan for your household.  

Will I be charged a fee for new line connections?

This depends on your internet provider, as well as where you live and the technology and infrastructure that needs to be installed.  

Perhaps you’re moving into a new development? In this case, some providers may charge you a new development fee when they have to install the NBN equipment from scratch. 

Ultimately, it’s up to your provider. They may charge you with a new line connection fee to cover set up charges, as well as the modem and any applicable delivery fees. 

Will I experience any disruptions with FTTB?

You may experience some minor disruptions while your FTTB connection is being set up and configured. 

However, if you continue to experience disruptions after the connection is completed, get in touch with your provider to see if they can figure out what is going on. It may be an issue at your home or premises, but it is also possible that your provider could be having some issues, too! 

Will it slow down my connection if multiple people in my building are using FTTB?

As mentioned earlier, your internet speed can be affected by many factors.  

If many people are using the internet in your building and you’re concerned about traffic in peak periods, then you may benefit from choosing a higher speed NBN plan. 

How do I check what type of NBN connection I have?

You can enter your home or business address on the NBN website to see exactly what type of NBN connection you have. 

How do I compare internet plans?

Need help figuring out which NBN plan might be suitable for you? The good news is we’re here to help.  

iSelect have partnered with CIMET to help you compare a range of internet plans and providers.  

To start comparing, you can simply hop online

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