This is an AI summary, which is an experiment of ours, AI can make mistakes and people should always refer to the official brand write-ups for certainty.

The Ubiquiti UF-OLT-4 UFiber 4-Port Optical Line Terminal is a high-performance, cost-effective solution designed for internet and telecom service providers looking to deploy robust fibre optic networks. This managed 1U rack-mountable device simplifies the delivery of Triple Play Services—including high-speed data, voice, and IPTV/VoD—with impressive GPON speeds of up to 2.488 Gbps downstream and 1.244 Gbps upstream.
Efficient Capacity and Connectivity
Equipped with four GPON ports, the UF-OLT-4 is engineered to support up to 128 ONU CPEs per port, allowing for a total of 512 concurrent clients. To ensure seamless network integration and high-speed backhaul, the terminal features a dedicated 10G SFP+ port for 1/10 Gbps uplink connectivity. Its compact design allows for versatile deployment, whether rack-mounted using the included ears, placed on a desktop, or wall-mounted.
Intelligent Network Management
Management is streamlined through the Ubiquiti Network Management System (UNMS), providing an intuitive graphical web interface that eliminates the need for complex command lines. The UF-OLT-4 offers comprehensive out-of-band management via a dedicated Gigabit Ethernet port, as well as an RJ45 serial console port for CLI access. This ensures that service providers can easily monitor, troubleshoot, and optimise their GPON networks without additional licensing fees.
Reliability and Power Flexibility
The UF-OLT-4 is built with redundancy and stability in mind. It supports a universal AC input (100-240V AC) and includes a 24V DC input option, which can be utilised for a redundant or stand-alone power source. With a maximum power consumption of just 35W (excluding SFP modules), it provides an energy-efficient core for modern fibre installations.
Key Features:
Four GPON SFP ports supporting up to 512 clients (128 per port).
One 1G/10G SFP+ port for high-capacity uplink.
GPON Speeds: 2.488 Gbps Downstream (TX) and 1.244 Gbps Upstream (RX).
Flexible management via UNMS or local web UI.
Includes one UF-GP-B+ SFP module for immediate deployment.
1U rack-mountable, wall-mountable, or desktop placement options.
Dual power support with AC/DC internal supply and secondary 24V DC input.