an optical line terminal(OLT) is connected to a splitter by using a feeder fiber, and an ONU is connected to the splitter by using a branch fiber, so that a point-to-multipoint (point to multipoint) connection from the OLT to the ONU is implemented. The Optical Line Terminal (OLT) manages and schedules downstream and upstream data transmission, provides user access, allocates bandwidth, and handles network management functions. As a managed device, the Optical Network Unite (ONU) converts optical signals to electrical signals, enabling. This document describes the Gigabit Passive Optical Network (GPON) technology and how it functions. There are no specific requirements for this document. This document is not restricted to specific software and hardware versions. Active Optical. Optical Distribution Network (ODN) planning is critical to a successful GPON implementation. It is essential to have a well-planned network design to ensure CPEs receive a usable signal, allow for bandwidth capacity and client count on each PON port, and save on costs. There are two different distribution methods of optical splitters in the FTTH. Bandwidth is shared amongst customers in a PON, and the bandwidth received by a customer is not related to the power received at the optical network terminal (ONT) as long as the power is high enough so the ONT can operate. Splits are most commonly factors of 2, such as 1x2, 1x4, 1x8, 1x16, 1x32.