The JBX01959 100BASE-BX20 SFP transceiver module represents a premium solution for organizations requiring reliable, long-distance optical networking capabilities. Engineered to deliver consistent 100MB data transmission across 20-kilometer spans of singlemode fiber, this module excels in applications where traditional copper-based solutions fall short. Key Technical Specifications: This transceiver utilizes 9/125 micron singlemode fiber core technology, enabling superior performance over extended distances while minimizing signal degradation. The simplex LC/UPC connector design ensures precision alignment and reduced insertion loss, critical factors in high-performance optical networks. The module's metal case with integrated laser transmitter provides robust protection while maintaining optimal thermal management across the 0-70°C operating temperature range. Compatibility & Integration: Direct replacement for Extreme Networks 10059 OEM parts, the JBX01959 integrates seamlessly into existing enterprise network infrastructure. Custom brand programming options available for organizations requiring specialized configurations or branded solutions. Safety & Compliance: Comprehensive certifications demonstrate commitment to safety and environmental standards. Class 1 Laser classification, UL/FDA approval under 21CFR 1040.10, and TUV validation ensure operator safety. RoHS and ELV directive compliance (EU 2002/95/EC) reflects adherence to global environmental regulations. Applications: Ideal for: Campus network interconnection, metropolitan area network (MAN) deployments, disaster recovery data center links, fiber-to-the-building installations, and long-distance managed service provider (MSP) connectivity solutions. Value Proposition: Beyond IEEE 802.3ah extended-reach BiDi standards, qualified to SFF-8472 specifications for guaranteed interoperability. 90-day limited warranty provides peace of mind, while complimentary shipping on orders exceeding $99 reduces total cost of ownership. Ships from strategically located US warehouses (Danville, CA and Beaufort, SC) ensuring rapid deployment. Maintenance: No special maintenance required. Module should be protected from dust and moisture when not in use. Compatible with standard SFP slot configurations across major enterprise networking platforms.