The JBX02099 1000BASE-BX10-D SFP Transceiver is a professional-grade optical transceiver module designed for organizations requiring reliable, high-speed network connectivity over extended distances. This module represents an ideal solution for data center interconnects, metro-area networks, and long-distance fiber optic communications where cost efficiency and performance are critical. **Key Technical Features:** This 1GB SFP module operates with single-mode fiber (SMF) utilizing a 9/125 micron core, delivering consistent signal integrity over 10km distances. The dual-wavelength design (1490/1310nm) enables simplex transmission on a single fiber strand, significantly reducing installation costs while maintaining full-duplex communication capabilities. The LC/UPC connector provides optimal optical performance with minimal signal loss, meeting Telcordia standards for insertion loss and return loss. **Performance & Reliability:** Qualified to IEEE 802.3ah specifications, the BX10-D module guarantees compatibility with Cisco GLC-BX-D-I hardware and most standard SFP-compatible equipment. The metal case construction with integrated laser transmitter ensures durability in demanding environments. Wide operating temperature range (-40°C to 85°C) supports deployment in data centers, outdoor cabinets, and industrial settings. **Safety & Compliance:** Comprehensively certified with Class 1 Laser designation, TÜV and UL/FDA approvals, and RoHS/ELV compliance per EU directive 2002/95/EC, this transceiver meets the highest industry safety standards. Custom brand programming is available for organizations requiring OEM labeling. **Practical Applications:** Ideal for carrier-class Metro Ethernet services, enterprise campus network extensions, and telecommunications infrastructure requiring cost-effective long-distance solutions. The simplex LC/UPC configuration makes this module particularly valuable for point-to-point links, CWDM systems, and legacy network upgrades. **Support & Warranty:** Backed by a 90-day limited warranty with fast shipping from U.S. locations (Danville, CA and Beaufort, SC). Free standard shipping on orders over $99 provides exceptional value for bulk network deployments.