The SFP+ uplink port (s) are used to connect UFiber GPON network to the rest of the routing and switching domain. On the uplink side, we use a high capacity router such as an ER-8-XG, connected to the OLT using 10Gbps SFP+ fiber modules or DAC cables. Centralized splitting means that the optical splitter between the optical line terminal (OLT) and the optical network unit (ONU) is parallel, and the basic form is “OLT→optical splitter→ONU”, in which the optical splitter ratio is usually 1:32. The SFP+ uplink port (s) are. Optical Line Terminal (OLT) - Device that aggregates all optical signals from ONTs into a single multiplexed beam of light which is then converted into an electrical signal, formatted to Ethernet packet type standards for Layer 2 or Layer 3 forwarding. In this. According to the Broadband Forum, PLC splitters are essential for achieving scalable and cost-effective GPON and XGS-PON deployment in access networks. In this guide, you'll learn how fiber splitters function in PON networks, the difference between PLC and FBT types, and how to choose the best. Active Star An alternate to a PON is an active star network, also called a point-to-point (P2P) or "home run" system where each subscriber has a dedicated fiber and Ethernet link to the head end or central office. The main difference with a PON is the amount of fiber required for the network.