The JBX01969 100BASE-BX40 SFP transceiver module represents enterprise-grade optical connectivity for demanding network applications requiring extended transmission distances. This simplex module delivers reliable 100Mbps Fast Ethernet performance across 40 kilometers of single-mode fiber infrastructure. Advanced Technology: Utilizing bidirectional (BiDi) technology beyond IEEE 802.3ah specifications, this transceiver optimizes single fiber strand usage by employing separate 1550nm and 1310nm wavelengths for simultaneous transmission and reception. This innovative approach reduces fiber requirements and installation complexity while maintaining superior signal integrity. Physical Specifications: The compact SFP form factor (5x4x2mm) ensures seamless integration into existing infrastructure. The simplex LC/UPC connector provides excellent return loss performance and durability for frequent connections. Built with a robust metal case housing an integrated laser transmitter, this module withstands demanding environmental conditions and delivers consistent performance. Compliance & Safety: Fully qualified to SFF-8472 extended-reach specifications, the transceiver meets stringent international standards including RoHS/ELV directives and EU 2002/95/EC requirements. Class 1 laser certification (LN #50 7/2001) combined with UL/FDA 21CFR 1040.10 compliance ensures safe operation in professional environments. Applications: Ideal for carrier-class networks, campus interconnects, metropolitan area networks (MANs), and long-distance Fast Ethernet deployments. Perfect replacement for Cisco GLC-FE-100BX-D40 modules in existing installations. Operating Conditions: Rated for continuous operation from 0-70°C (32-158°F), accommodating both indoor and controlled outdoor environments. Warranty & Support: 90-day limited warranty included. Custom brand programming available for OEM requirements. Manufactured in Vietnam and China with quality assurance protocols. Free standard shipping on orders exceeding $99.