The JBX01970 100BASE-BX40 SFP Transceiver is a high-performance optical module engineered for extended-reach network deployments requiring reliable long-distance connectivity. This transceiver delivers 100 Mbps data rates over single-mode fiber at distances up to 40 kilometers, making it ideal for campus interconnects, metropolitan area networks (MANs), and service provider applications. Key Technical Specifications: This bidirectional SFP module utilizes 1310/1550nm wavelengths for simultaneous two-way communication over a single fiber strand. The 9/125 micron single-mode fiber core provides low attenuation and excellent dispersion characteristics essential for 40km transmission. The simplex LC/UPC connector ensures reliable, low-loss connections with consistent performance across thousands of reconnection cycles. Compatibility and Integration: Fully compatible with Cisco GLC-FE-100BX-U40 equipment, this module serves as a direct replacement for existing installations or new deployments. Custom brand programming is available for organizations requiring OEM-level integration. The transceiver works seamlessly with standard SFP-equipped networking equipment from major manufacturers. Quality and Certification: Manufactured with premium metal case construction and integrated laser transmitter technology, the JBX01970 meets rigorous industry standards. It qualifies to SFF-8472 extended-reach BiDi specifications and carries multiple safety certifications: Class 1 laser rating, UL/FDA approval under 21CFR 1040.10, and TUV certification. Full RoHS and ELV directive compliance ensures environmental responsibility without compromising performance. Operational Reliability: Designed for demanding network environments, this transceiver operates reliably across 0-70°C temperature ranges. The 90-day limited warranty provides peace of mind, while free standard shipping on orders over $99 makes procurement cost-effective. Ships from multiple U.S. locations (Danville, CA and Beaufort, SC) for faster delivery. Applications: Perfect for long-haul metropolitan networks, disaster recovery links, campus backbone connections, and service provider infrastructure. Ideal for organizations seeking reliable, cost-effective alternatives to proprietary transceivers without sacrificing quality or performance standards.