Ubiquiti UISP-FIBER-XG Optical Network Unit
The Ubiquiti UISP-FIBER-XG (MPN: UISP-FIBER-XG) is an optical network unit (ONU) for fiber-to-the-premises (FTTP) deployments using Ubiquiti's UISP Fiber product family. It terminates XGS-PON optical signals at the customer premises, converting them to standard Ethernet connectivity — a critical last-mile component when you're rolling out carrier-grade fiber networks.
Overview
The UISP-FIBER-XG delivers 10 Gbps downstream and 2.5 Gbps upstream over distances up to 20 km of single fiber, eliminating the need for dedicated power infrastructure at the subscriber location via 24V PoE input. This asymmetrical bandwidth profile suits residential fiber-to-the-home (FTTH) and small-office fiber service deployment where downstream capacity (streaming, cloud sync, conferencing) matters more than upload speed. The unit weighs 0.490 lb and operates as a transparent endpoint — no built-in switching, no firewall functions — so you pair it directly with customer-premises equipment (CPE) or edge routers for service delivery.
Compatibility
The UISP-FIBER-XG is exclusively compatible with Ubiquiti's UISP Fiber XGS-OLT (optical line terminal). It cannot interoperate with third-party OLTs or other PON ecosystems — this is a closed-loop device designed for Ubiquiti-managed fiber networks only. If you're migrating existing GPON subscribers or testing multi-vendor PON architectures, this constraint matters: commit to Ubiquiti's management stack or explore alternate ONUs. Integration occurs through Ubiquiti's UISP management portal for provisioning, monitoring, and subscriber lifecycle management.
Installation Notes
Installation requires only a single-mode optical fiber connection and 24V PoE power at the premises — no UPS, no separate power feed needed. The device connects directly to optical splitters or fiber drop terminals without intermediate active equipment. Plan for a single 2.5GbE RJ45 LAN port output, so you must pair the ONU with a CPE switch, firewall, or router to distribute service to multiple internal devices or services. No environmental hardening is documented in the evidence; verify local operating temperature and humidity limits before outdoor pole-mount or weather-exposed installations.
