With FTTR, the main ONU connects upstream using XGSPON or 10G EPON, and a fibre cable links a slave ONU with Gigabit Wi-Fi6 to each room. FTTR (Fiber to the Room) extends fiber optic cabling from the entrance to every room, providing whole-home high-speed network coverage. Compared to traditional Ethernet or Mesh WiFi, FTTR offers higher bandwidth, lower latency, and longer lifespan (25-30 years for fiber). • Optical Splitter:. Fibre-to-the-room (FTTR) is a new kind of in-premises networking technology which is based on optical fibre communication.