The JBX02147 1000BASE-BX120 SFP Transceiver represents enterprise-grade optical technology designed for mission-critical network infrastructure requiring extended transmission distances. This simplex LC/UPC module delivers 1Gbps throughput over 120 kilometers of 9/125 singlemode fiber, establishing it as an ideal solution for metropolitan area networks (MANs), wide area networks (WANs), and carrier-grade backbone connectivity. Key Technical Specifications: Operating at 1550nm transmit and 1490nm receive wavelengths, this transceiver leverages advanced BiDi (bidirectional) technology to maximize fiber strand efficiency—a critical advantage when infrastructure costs demand optimal resource utilization. The module qualifies beyond standard IEEE 802.3ah specifications, delivering extended-reach performance suitable for complex network topologies. With 9/125 singlemode fiber compatibility, it ensures superior signal propagation over standard multimode alternatives, resulting in cleaner, more reliable data transmission. Robust Design and Safety: Constructed with a metal case housing precision laser transmitter components, this transceiver incorporates multiple safety and compliance certifications. Class 1 Laser designation, TUV, UL, and FDA 21CFR 1040.10 compliance ensure safe operation in regulated environments. RoHS and ELV directive compliance (EU 2002/95/EC) reflects commitment to environmental sustainability and safety standards. Arista Ecosystem Integration: Direct compatibility with Arista SFP-1G-BXD120 equipment streamlines network deployment and reduces integration complexity. This makes it an excellent cost-effective replacement for original equipment, reducing capital expenditure while maintaining manufacturer-grade performance standards. Operational Reliability: Rated for 0-70°C operating temperature range, this transceiver performs consistently across diverse environmental conditions. The 90-day limited warranty provides assurance, while custom brand programming availability allows for enterprise-specific configurations. Applications and Use Cases: Ideal for ISPs, enterprises, and data centers requiring long-distance 1Gbps connections without expensive upgrade to higher-speed protocols. Particularly valuable for connecting geographically dispersed facilities, emergency backup networks, and carrier-class infrastructure projects. Quick Specifications: - Data Rate: 1Gbps - Distance: 120km - Fiber Type: 9/125 Singlemode - Connector: Simplex LC/UPC - Wavelengths: 1550/1490nm - Standards: SFF-8472 extended-reach BiDi - Dimensions: 5x4x2mm - Shipping: Free standard shipping on orders over $99