The JBX01970 100BASE-BX40 SFP transceiver represents a cost-effective solution for organizations requiring reliable extended-reach optical connectivity. This module is engineered to provide 100MB Fast Ethernet transmission across single-mode fiber distances up to 40 kilometers, making it ideal for metro and long-haul network applications where traditional copper-based solutions fall short. Key Technical Specifications: This transceiver operates on bidirectional technology, enabling full-duplex communication over a single fiber strand using 1310nm and 1550nm wavelengths. The 9/125 single-mode fiber core ensures minimal signal degradation over extended distances. With a simplex LC/UPC connector interface, it integrates directly into standard optical patch panels and equipment. Compatibility and Integration: The JBX01970 is explicitly compatible with Cisco network equipment and directly replaces the OEM Cisco GLC-FE-100BX-U40 part number. It maintains full electrical and optical compatibility with existing installations, requiring no firmware updates or configuration changes. The standard SFP form factor allows hot-swappable installation in any compatible switch or router. Compliance and Safety: This transceiver exceeds industry safety and environmental standards. It carries RoHS and ELV certification, ensuring environmentally responsible manufacturing. Class 1 laser designation (LN #50 7/2001) with UL and FDA compliance (21CFR 1040.10) guarantees user safety. Qualification to SFF-8472 specifications ensures interoperability with leading networking platforms. Robust Performance: Operating reliably in temperatures from 0°C to 70°C (32°F to 158°F), this module performs consistently across diverse climate conditions. The metal case with integrated laser transmitter provides durability and protection against electromagnetic interference. Custom brand programming is available for organizations requiring OEM labeling. Value Proposition: At a fraction of OEM pricing, the JBX01970 delivers equivalent performance and reliability. The 90-day limited warranty demonstrates manufacturer confidence. Free standard shipping on orders exceeding $99 reduces total acquisition costs. Ships from multiple U.S. locations (Danville, CA and Beaufort, SC) for rapid deployment.