The JBX02161 1000BASE-BX20 SFP transceiver represents a cutting-edge solution for enterprises requiring extended-reach network connectivity without the complexity of multi-fiber deployments. This optical transceiver delivers exceptional performance across distances up to 20 kilometers using standard singlemode fiber with a 9/125 micron core, making it ideal for campus networks, metropolitan area networks (MANs), and long-distance data center interconnections. Key Technical Specifications: This module operates at 1GB data rates with bidirectional transmission capabilities exceeding IEEE 802.3ah standards. The 1310/1550nm wavelength specification ensures optimal signal transmission and reception through the same fiber strand, significantly reducing infrastructure costs compared to traditional duplex systems. Qualified to SFF-8472 specifications, the transceiver guarantees compatibility with industry-standard equipment and proven long-term reliability. Robust Design and Safety: Constructed with a protective metal case and integrated laser transmitter, the JBX02161 withstands demanding networking environments. Multiple safety certifications including Class 1 Laser designation, TÜV approval, and UL/FDA compliance (21CFR 1040.10) confirm its adherence to the highest industry standards. The module's RoHS and ELV compliance demonstrates commitment to environmental sustainability without compromising performance. Seamless Integration: Purpose-built for Arista network infrastructure, this module directly replaces Arista SFP-1G-BXU20-35 transceivers, enabling plug-and-play installation with zero configuration required. The simplex LC/UPC fiber connector provides industry-standard connectivity with excellent return loss characteristics and durability. Reliability and Support: Backed by a 90-day limited warranty and manufactured to precision standards, the JBX02161 offers peace of mind for mission-critical applications. Custom brand programming is available for organizations requiring OEM-specific configurations. Free standard shipping on orders over $99 makes upgrading your network infrastructure cost-effective and convenient. Applications: Ideal for data center interconnects, campus backbone networks, metropolitan area networks, long-distance replication links, and disaster recovery solutions requiring extended transmission distances with minimal fiber infrastructure investment.