Verizon calls it an ONT, Optical Network Terminal.I am considering Verizon Fios if Spectrum drops all Cable Cards since I already have an ODN box they had to place in for Landline phone support since copper wiring has been phased out and Fios seems to be more Cable Card friendly, for now… or going OTA and some sort of Streamer/YouTube TV like setup, but not something I’m familiar with
EDIT: A little research shows that the ODN are the components including the fiber that goes to the ONT. MAJOR COMPONENTS OF FIBER TO THE HOME (FTTH) -OLT , ODN and ONT