NBN NTD BOX
PRE-WIRING SYDNEY

NBN NTD box pre-wiring is the installation of an internal conduit run — with a nylon drawstring inside it — from the external PCD wall entry point to the room and wall position where you want your NBN connection box placed. The conduit and drawstring are installed before your FTTP upgrade appointment so that the NBN Co technician can pull the fibre through to your preferred location on the day, rather than defaulting to wherever the PCD happens to be on the external wall.

It is most commonly needed by homeowners upgrading from FTTN, FTTC, or HFC to FTTP who have a specific room in mind for the connection box — a home office, study, or lounge room — that is not conveniently located next to the PCD. It is also useful when the PCD is on an inaccessible wall, in a garage, or on the side of the house furthest from where the router needs to sit.

NBN Co's installation scope covers connecting the fibre from the network to your premises and placing the NTD device at a standard location near the PCD. Their technicians are not scoped to run internal conduit through your ceiling cavities, make wall penetrations to other rooms, or carry out the kind of internal cabling work that would be required to get the connection box to a preferred position on the other side of the house.

The practical limit is roughly 12 metres of internal cable from the PCD entry point. If your preferred NTD room requires more than that, or requires routing through internal walls and ceiling cavities, NBN Co will place the device at the closest compliant position and move on. The responsibility for internal routing to a preferred location sits with the property owner — which is where private cabling work such as NTD pre-wiring comes in.

The PCD (Property Connection Device) — sometimes called the network boundary point — is the external mounting point on the outside wall of your property where the NBN lead-in cable enters the building. On FTTP properties, it is the external wall bracket or conduit entry point where the fibre from the street or pit arrives at your premises. For most residential properties, it is mounted on an external wall, often facing the street or at the side of the building closest to the Telstra pit.

The position of the PCD is determined during the original NBN design for your property and is not something the property owner chooses. On some properties, particularly those on large blocks or corner allotments, the PCD ends up on a wall that is inconvenient for internal connection box placement — which is the most common reason NTD pre-wiring is needed.

There is no fixed maximum distance for the internal conduit run — the practical limit depends on the number and tightness of bends required, not the linear distance alone. Fibre optic cable has a minimum bend radius that must not be exceeded at any point in the conduit run, otherwise the cable can be damaged during the pull-through. A long, straight run through an open ceiling cavity is far easier to execute than a shorter run with multiple tight bends around obstacles.

For most residential pre-wiring jobs, runs between five and fifteen metres through ceiling cavities are straightforward. Longer runs or runs through wall cavities with multiple bends require careful planning and may involve intermediate access points. We assess the specific run at your property during the site inspection and design the conduit route to ensure fibre can be pulled through cleanly before quoting.

A drawstring is a nylon cord threaded through the full length of the pre-installed conduit. When the NBN Co technician arrives on installation day, they attach the FTTP fibre cable to the drawstring and pull it through the conduit to the NTD wall position. The technician then terminates the cable and installs the NTD. This is the standard pre-wiring option and works with every FTTP installation — the drawstring is compatible with whatever fibre specification NBN Co brings on the day.

Pre-pulled fibre involves SECURE A COM drawing the actual optical fibre cable through the conduit before the NBN Co appointment. The technician only needs to terminate the cable rather than pulling it through. This option requires prior confirmation of the fibre spec and connector type that NBN Co will use for your specific property and upgrade type, and is not always possible or necessary. We discuss both options during the assessment and recommend the most practical approach for your situation.

Yes — and this is actually the ideal timing. If you know your area has been declared eligible for FTTP or your RSP has advised an upgrade is coming, getting the conduit pre-installed before the NBN Co appointment is booked gives you the most flexibility. The conduit and drawstring can sit in place for months without any issues — the drawstring does not degrade inside a sealed conduit and is ready whenever the NBN Co technician arrives.

Acting early also removes time pressure. If you wait until the FTTP upgrade appointment is confirmed, you may only have a short window to organise pre-wiring before the installation date. Pre-wiring before the upgrade is booked means the internal routing is already done and the NBN Co appointment can proceed without any scheduling stress on either side.

In the vast majority of cases, yes. When an NBN Co technician arrives and finds a clearly labelled conduit with a drawstring ready at the PCD entry point and terminated at the preferred NTD wall position, they will typically use it to pull the fibre through and install the connection box at that location. The pre-wired conduit makes their job straightforward — it tells them exactly where the cable needs to go and gives them a clean pull path to get it there.

The conduit must be installed correctly — compliant P20 specification, correct bend radius throughout, and a clear drawstring accessible at both ends. We provide written documentation of the pre-wiring for the technician, and if there are any questions about the installation on the day, we are available by phone to clarify. Properly installed pre-wiring with correct labelling and documentation has a high acceptance rate in our experience with Sydney FTTP installations.

Yes, NTD pre-wiring is applicable to apartments and units, though the scope and access requirements differ from freestanding houses. In FTTB apartment buildings, the fibre terminates in the building's communications room or riser, and the internal run from that point to your preferred in-unit connection box position is the scope of the pre-wiring. Ceiling cavity access in apartments can be more limited, and some buildings use existing conduit risers that may be usable if they have drawstrings already installed.

For apartments in strata schemes, penetrations through fire-rated floors, ceilings, or walls require strata body corporate approval before work can begin. We advise on what approvals are needed during the site inspection. Where strata approval is required, we recommend initiating that process early — it can take several weeks to obtain, and pre-wiring cannot begin without the relevant permissions in place.