DS-LGPA-16 is a professional 16-port GPON service card designed for TP-Link OLT chassis and high-capacity FTTH infrastructures, ideal for ISPs, telecommunications operators, and professional fiber-optic networks. Each GPON port supports speeds of up to 2.488 Gbps downstream and 1.244/1.25 Gbps upstream, ensuring high performance for broadband services. The split ratio of up to 1:128 per port and the transmission distance of up to 20 km enable the creation of extensive, scalable, and high-density GPON networks. Hot-Swap support facilitates card installation and maintenance, while advanced Layer 2 and Layer 3, QoS 802.1p/DSCP, Voice VLAN, and Auto VoIP features enable optimized data and voice traffic management. Centralized management via DPMS, SNMP, CLI, and Web UI simplifies infrastructure configuration, monitoring, and administration. DS-LGPA-16 represents a professional and scalable solution for OLTs, GPON networks, and multi-service FTTH infrastructures.