SFP With SC/UPC Receptacle Transceiver
1490 nm DFB Tx
1310 nm APD Rx
Digital diagnostics SFF-8472 Compliant
1250 Mbps continuous mode Transmission
1250 Mbps Burst mode receiver Data Rate
Provide fast RSSI function
Operation case temperature: 0~70°C
Complies with RoHS directive
GOXS-BI4312-20PON4+: High-Density
The GOXS BI4312 20PON4+ is a next-generation, high-capacity GPON Optical Line Terminal (OLT) designed to meet the growing demands of modern fiber optic broadband networks. With 20 GPON ports, 4 uplink SFP+ ports (10GE), and 12 uplink GE SFP ports, this device is purpose-built for large-scale fiber-to-the-home (FTTH), fiber-to-the-building (FTTB), and fiber-to-the-premise (FTTP) deployments.
Compact yet powerful, the GOXS-BI4312-20PON4+ delivers high-speed connectivity, reliable service, and advanced traffic management for Internet Service Providers (ISPs), telecom carriers, and enterprise networks. It ensures high user density, future-ready bandwidth, and seamless integration with existing network infrastructure.
Key Features
20 GPON Ports
Each port supports up to 128 optical network terminals (ONTs), allowing a total connection capacity of 2,560 subscribers. This is ideal for densely populated urban or suburban network rollouts.
Flexible Uplink Options
Equipped with 4 x 10 Gigabit Ethernet (10GE) SFP+ and 12 x Gigabit Ethernet (GE) SFP uplink ports, the OLT can efficiently handle heavy traffic loads while providing scalable backhaul bandwidth.
Advanced Layer 2/3 Capabilities
Supports comprehensive Layer 2/3 switching and routing functions such as VLAN, QinQ, OSPF, RIP, static routing, and more. This provides robust data flow control and network segmentation.
Carrier-Class Reliability
Designed with carrier-grade standards, the OLT supports redundant power supply options, intelligent cooling, and high uptime for mission-critical networks.
Scalable and Modular
Suitable for modular network expansion without performance compromise. The architecture supports easy integration with core routers, aggregation switches, and downstream ONTs.
Comprehensive Management Interface
Offers CLI, Telnet, Web UI, SNMP, and EMS for network configuration, monitoring, and diagnostics.
Technical Specifications
| Specification | Details |
|---|---|
| GPON Ports | 20 |
| Uplink Ports | 4 x 10GE SFP+, 12 x GE SFP |
| Subscriber Capacity | Up to 2,560 users (1:128 split) |
| Switching Capacity | ≥ 200 Gbps |
| Forwarding Rate | ≥ 148.8 Mpps |
| PON Standards | ITU-T G.984/G.988 |
| Data Rate per GPON Port | Upstream 1.25 Gbps / Downstream 2.5 Gbps |
| Layer Support | Layer 2 & Layer 3 |
| Routing Protocols | OSPF, RIP v1/v2, Static Routing |
| VLAN & QoS Support | IEEE 802.1Q, QinQ, GVRP, 802.1p |
| Management Interfaces | CLI, Telnet, SNMP, Web GUI, EMS |
| Power Supply Options | AC 100–240V or DC -48V |
| Dimensions | Rack-mountable 1U/2U chassis |
| Operating Temperature | 0°C to 50°C |
| Redundancy | Dual PSU (optional), hot-swappable fans |
Ideal Application Scenarios
FTTH/FTTB/FTTx Networks
Designed to provide high-speed internet, IPTV, and voice services over fiber infrastructure to homes and commercial establishments.
Campus & Enterprise Networks
Enables reliable connectivity across universities, hospitals, business centers, and government institutions.
ISPs and Network Operators
Best suited for ISPs looking to upgrade or expand their network with cost-effective, high-density GPON access solutions.
Smart Cities and Industrial Networks
Supports deployment of smart surveillance, environmental sensors, and other IoT-based services requiring stable fiber infrastructure.
Key Benefits
High Port Density: Consolidates 20 GPON ports into a compact chassis, reducing space and cost.
Flexible Uplinks: 4 x 10GE uplinks accommodate high-bandwidth applications and backhaul.
Future-Ready: Scalable and modular design allows for seamless growth.
Enhanced Network Control: Advanced L2/L3 features ensure effective traffic control and routing.
Efficient Operation: Smart fan and power management for energy-saving performance.
Conclusion
The GOXS-BI4312-20PON4+ is a robust, feature-rich OLT that empowers ISPs and enterprise network administrators to deliver high-speed, reliable, and scalable fiber-based services. It combines high subscriber capacity, flexible uplink options, advanced network control, and simplified management into one compact solution. Whether you’re building a new FTTH network or expanding an existing one, this OLT ensures operational efficiency, reduced total cost of ownership, and long-term service delivery success.
