The termination equipment in any telecommunications carrier’s network is called a Network Termination Device (NTD). SUPA Networks uses two types of NTDs-Calix NTD (Black Box) and Mikrotik NTD (White Box). This device may also be referred to as a “fibre box” at times, and some companies may confusingly refer to the NTD by a different name, such as NTU (Network Termination Unit) or ONT (Optical Network Terminal). SUPA Networks refers to this device as the NTD. This device takes the data transmitted from fibre optic cables and converts it to electronic signals that your router can use. In the case of SUPA Network’s Fibre to the Premises (FTTP) networks, one NTD can support more than one active internet service.