Fibre to the Node is the only connection not to feature an nbn™ Co NTD inside the premises. 

Instead, your connection up to the premises will be kept on the copper network while outside the premises, you are connected to an optical fibre pillar. 

This means that your modem should connect directly to the primary phone socket within the household and into the DSL socket on the back of the modem. 

Please find attached below an FTTN Modem Set Up Guide and also a Modem Status Light Guide for more information on how to troubleshoot.