The JBX01955 100BASE-BX20 SFP transceiver is a specialized optical module designed for enterprise-grade network infrastructure requiring long-distance, reliable signal transmission. With its impressive 20km transmission capability over single-mode fiber, this module eliminates the need for costly signal regeneration equipment in extended-reach network deployments. Key Technical Features: This simplex transceiver operates at 100 Mbps data rates with a compact SFP form factor, fitting seamlessly into standard SFP slots on compatible networking equipment. The 9/125 single-mode fiber core ensures minimal signal loss and dispersion, while the LC/UPC connector provides excellent return loss characteristics and durability. Engineered to SFF-8472 specifications, the transceiver supports extended-reach bidirectional (BiDi) transmission capabilities that surpass standard IEEE 802.3ah requirements. Compatibility and Integration: Perfectly suited for Brocade networking environments, this module directly replaces OEM part numbers E1MG-100BXD and E1MG-100BXD-OM. Its universal SFP compatibility allows deployment across various networking platforms supporting standard SFP form factors, ensuring flexibility and future-proofing your infrastructure investments. Robustness and Compliance: Constructed with a robust metal case and precision laser transmitter technology, this transceiver withstands demanding network environments. Certified as Class 1 laser equipment and compliant with RoHS/ELV directives (EU 2002/95/EC), it meets stringent safety and environmental standards. Operating temperature range of 0°C to 70°C ensures reliable performance across seasonal variations and climatic conditions. Applications: Ideal for connecting remote data centers, campus networks, and metro area networks where distance and cost efficiency matter. Perfect for ISPs, enterprises, and managed service providers requiring reliable extended-reach connectivity solutions. Customization and Support: Custom brand programming is available for OEM and reseller requirements. With free standard shipping on orders exceeding $99 and a 90-day limited warranty, this transceiver offers exceptional value and peace of mind for your network infrastructure investments.