The JBX02169 1000BASE-BX40-D SFP Transceiver is a premium optical module designed for enterprise-class networking environments requiring extended-distance single-mode fiber connectivity. This bidirectional transceiver enables organizations to establish robust 1Gbps connections spanning up to 40 kilometers over standard single-mode fiber (9/125 core), making it an economical solution for metropolitan area networks, campus interconnects, and carrier-class deployments. Key Technical Specifications: This module utilizes advanced bidirectional technology, transmitting data at 1490nm and receiving at 1310nm to maximize fiber utilization without requiring parallel fiber strands. The simplex LC/UPC connector provides industry-standard, low-loss connections with repeatable, precise alignment. Operating across a wide temperature range of 0-70°C (32-158°F), it maintains consistent performance in both controlled data centers and variable field conditions. Compatibility and Standards Compliance: Purpose-built for Extreme Networks 10056-40K systems, this transceiver eliminates vendor lock-in concerns through standardized SFF-8472 qualification. It extends beyond basic IEEE 802.3ah specifications, delivering extended-reach BiDi capabilities that increase network flexibility and scalability. Full RoHS and ELV compliance ensures environmental responsibility and meets modern procurement standards. Construction and Durability: Features a robust metal case housing with integrated laser transmitter technology, ensuring reliable long-term performance under demanding network conditions. Class 1 laser certification and comprehensive safety certifications (TUV, UL/FDA, 21CFR 1040.10) guarantee user safety and regulatory compliance across global markets. Perfect for IT professionals upgrading legacy systems, expanding network reach, or seeking cost-effective enterprise alternatives to proprietary solutions. Backed by 90-day limited warranty and available with custom brand programming for OEM applications.