The JBX02103 1000BASE-BX10-D SFP Transceiver is a premium optical module engineered for enterprise-grade network connectivity requiring extended reach over singlemode fiber infrastructure. With support for 10km transmission distances, this transceiver excels in campus networks, metropolitan area networks (MANs), and point-to-point connections where longer cable runs are necessary. **Key Technical Features:** This module operates at 1Gbps data rate with wavelength division multiplexing (WDM) capabilities, transmitting at 1490nm and receiving at 1310nm simultaneously. The 9/125 micron singlemode fiber core ensures minimal signal loss and dispersion over extended distances. The simplex LC/UPC connector design provides industry-standard connectivity with proven reliability and low insertion loss. **Compatibility and Integration:** Manufactured as a direct replacement for Extreme Networks 1G-SFP-BXD modules, the JBX02103 ensures seamless integration into existing Extreme Networks switching infrastructure. Custom brand programming is available for OEM applications, making it ideal for system integrators and resellers. **Quality and Certification:** Fully compliant with IEEE 802.3ah standards and SFF-8472 specifications, this transceiver meets stringent industry requirements. Safety certifications include Class 1 Laser, TUV, UL/FDA, and 21CFR 1040.10 compliance. RoHS and EU directive 2002/95/EC certification ensures environmental responsibility. **Durability and Support:** Built with a robust metal case and integrated laser transmitter, the module withstands demanding deployment environments. Operating temperature range of 0-70°C accommodates indoor and controlled outdoor installations. Backed by a 90-day limited warranty and supported by free standard shipping on orders exceeding $99. **Applications:** Ideal for data center interconnects, enterprise backbone networks, MPLS deployments, and any application requiring cost-effective, reliable gigabit optical connectivity over extended distances.