The JBX02173 1000BASE-BX40-D SFP transceiver module represents a premium solution for organizations requiring extended-reach single-mode fiber connectivity. Specifically engineered to replace OEM part MGBIC-BX40-D, this transceiver delivers exceptional performance in demanding network environments. Key Technical Specifications: This module operates at 1Gbps data rates with an impressive 40-kilometer transmission capability over 9/125μm single-mode fiber. The bidirectional (BiDi) architecture leverages wavelength division multiplexing (1490/1310nm), enabling full-duplex communication through a single simplex LC/UPC fiber connection. This innovative approach significantly reduces fiber infrastructure requirements and installation complexity compared to traditional duplex systems. Design and Construction: The transceiver features a durable metal case housing an advanced laser transmitter system, protecting sensitive optical components from environmental interference. Compact dimensions (5.0" × 4.0" × 2.0") enable seamless integration into existing SFP port architectures without requiring special adapters or modifications. Compliance and Safety: Qualified to SFF-8472 extended-reach BiDi specifications that exceed standard IEEE 802.3ah requirements, this module carries comprehensive certifications including Class 1 Laser designation, TÜV approval, UL compliance, and FDA 21CFR 1040.10 certification. Full RoHS/ELV compliance ensures environmental responsibility and regulatory adherence across global markets. Operational Range: Designed for sustained operation between 0°C and 70°C (32°F to 158°F), the transceiver maintains performance consistency across diverse climate conditions. Its robust thermal management ensures reliability in both air-conditioned data centers and field deployment scenarios. Compatibility and Integration: Complete backward compatibility with Extreme Networks infrastructure, combined with custom brand programming availability, ensures seamless deployment in enterprise environments. The 90-day limited warranty provides confidence in your investment. Ideal Applications: Perfect for metropolitan area networks (MANs), campus fiber extensions, disaster recovery site interconnections, and service provider backhaul implementations requiring cost-effective, reliable long-distance optical connectivity. Ships with complimentary standard shipping on orders exceeding $99 from multiple distribution centers ensuring rapid delivery and availability.