The user endpoint in a GPON system is the Optical Network Terminal (ONT) or Optical Network Unit (ONU). Acting as a specialized modem, it converts optical signals into electrical ones at the user's location, enabling broadband access for devices like WiFi, TVs, and desktops. This document is not restricted to specific software and hardware versions. 984 is the series of standards that define the architecture and operation of gigabit -per-second–capable passive optical network (GPON). Modern OLTs offer communication service providers (CSP) the ability to launch multigigabit services to tens of thousands of subscribers from a single location or just ten. Fiber-to-the-home. Connecting to GPON involves several crucial considerations to ensure optimal performance and reliability.