The JBX02162 1000BASE-BX20 SFP transceiver represents an excellent choice for network administrators seeking reliable, cost-effective connectivity solutions over extended distances. As a Cisco GLC-BX35-U20 compatible module, it delivers seamless integration into existing Cisco network infrastructure without requiring extensive reconfiguration or additional hardware modifications. Key Technical Specifications: This simplex optical transceiver operates at 1 Gigabit Ethernet speeds using bidirectional wavelength division multiplexing (1310/1550nm). The 20km reach over single mode fiber (SMF) with 9/125 core diameter makes it ideal for campus networks, metropolitan area networks, and long-distance point-to-point connections. The LC/UPC connector provides superior performance with minimal insertion loss and return loss. Design & Build Quality: Constructed with a robust metal case housing a precision laser transmitter, the JBX02162 meets extended-reach BiDi specifications beyond standard IEEE 802.3ah requirements. It qualifies to SFF-8472 specifications, ensuring compatibility with industry-standard management interfaces. The compact 5x4x2mm form factor fits standard SFP slots without requiring adapters. Compliance & Safety: Fully RoHS and EU directive 2002/95/EC compliant, this transceiver prioritizes environmental responsibility. Multiple safety certifications including Class 1 Laser, TUV, UL, and FDA 21CFR 1040.10 compliance guarantee safe operation in professional environments. Applications & Benefits: Ideal for: data center interconnections, enterprise campus networks, carrier-grade telecommunications, and wireless backhaul applications. The simplex LC/UPC design reduces cabling complexity while the bidirectional transmission minimizes fiber strand requirements. Extended 20km reach eliminates expensive optical amplifiers for medium-distance deployments. Operational Excellence: Operates reliably across 0-70°C temperature ranges, supporting both indoor and outdoor installations. RoHS compliance ensures long-term sustainability and regulatory adherence. Custom brand programming is available for OEM requirements. Warranty & Support: 90-day limited warranty provides peace of mind. Ships from multiple US locations (Danville, CA and Beaufort, SC) with free standard shipping on orders over $99.