Wiring for fibre

Home wiring is the most common reason why you may not be getting the broadband performance you expect. This applies to both ADSL2+ broadband and fibre-based broadband such as that will be rolled out with the government’s ultra-fast broadband programme.

When you are building a new house or rewiring an existing property it is the ideal time to ensure you can use the full potential of broadband.

To make sure your wiring isn’t holding your broadband back, then you should:

  • Install Cat5e cable – at a minimum. This is a high quality copper cable designed to deliver Ethernet-based services, including ADSL2+, VDSL2 or GPON. Cat6 or Cat7 cabling are other higher standard cable types now available.
  • ‘Star wire' cable through your home. This means the cabling travels from a central point (a star wiring box) with dedicated cabling to most rooms. In contrast, a traditional ‘daisy chain' cable installation is unsuitable for Ethernet (ADSL2+, VDSL2 or GPON) services.


We have prepared some material to assist you with ensuring your home wiring allows you to make the most of copper and fibre-based broadband:

When to wire smart

Installing future-proofed wiring makes sense when you're building or renovating because you can install cabling at the same time as other services, such as electrical wiring and plumbing, and before wall linings restrict access.

The telecommunications industry has published a voluntary Code of Practice for Premises Wiring. If a contractor is installing wiring for you, make sure they are familiar with it. The Code is available on the Telecommunications Carriers Forum (TCF) website along with further information on wiring for a smart home.

Installing lead-ins - information for installers

Lead-ins are the connections from the telecommunications network to private premises.

We have developed information detailing installation requirements for telecommunications lead-ins connecting urban and rural premises. This information is important because sub-standard lead-ins may be unable to be connected to a network provider.

Wiring for fibre in apartments and office buildings

Before we can provide ultra-fast broadband services in apartment or office buildings we will first need consent from all relevant parties and may need to do additional work to extend our network to each apartment, unit or office.

Then, to provide ultra-fast broadband to the dwelling or office that has ordered it, we will need to install an Optical Network Terminator or ONT inside the apartment or business.

Installing the ONT inside the apartment or business is part of our ultra-fast broadband commitment to Crown Fibre Holdings and this approach also ensures people receive the best ultra-fast broadband service performance from their service provider by:

  • bringing the fibre from our exchange all the way to the apartment or office being served.  In particular, beyond a distance of around 90m (including cable within an apartment), there can be an impact on performance of the service.  Previous fibre-based installations in multi-dwelling units have shown the importance of this.
  • supporting faster and easier diagnosis of faults.  For example, a service provider’s first help desk question is likely to be 'what is the status of the lights on your ONT?' and this would be difficult for an end customer to answer if the ONT isn’t within their apartment or office.
  • avoiding the large number of cables required from a remote basement or riser cupboard.  With four data and two voice ports on each ONT, to enable the potential for a variety of services from multiple service providers, six cat6 data cables would be required from the ONT to the apartment to cater for the possible use of all six ports.