The JBX02231 1000BASE-EX SFP transceiver represents a cost-effective solution for organizations seeking reliable long-distance optical connectivity without compromising performance or quality. Engineered to professional specifications, this module operates at 1000Mbps (1GB) over singlemode fiber, achieving impressive 40km transmission distances—ideal for campus networks, metropolitan area networks (MANs), and wide area network (WAN) applications. **Technical Excellence:** This transceiver operates at 1310nm wavelength, optimized for singlemode fiber communication with a 9/125 micron core. The duplex LC/UPC connector design provides industry-standard connectivity with minimal insertion loss, ensuring signal integrity across long-distance runs. Full compliance with IEEE 802.3z and SFF-8472 standards guarantees compatibility with enterprise-grade network equipment. **Juniper Ecosystem Integration:** Direct compatibility with Juniper SFP-1GE-LH-ET ensures plug-and-play deployment in Juniper-based network architectures. This eliminates compatibility concerns and simplifies network upgrades or expansions. **Enterprise-Grade Reliability:** Constructed with precision metal housing and advanced laser transmitter technology, the module withstands demanding operating environments from -40°C to 85°C. It carries multiple international safety certifications: Class 1 Laser, TUV, UL/FDA 21CFR 1040.10, and EU RoHS/ELV compliance, reflecting its commitment to safety and environmental standards. **Perfect for:** Data center interconnects, carrier-grade telecommunications, enterprise campus networks, disaster recovery links, and any application requiring reliable 40km optical transmission. **Warranty & Support:** Backed by a 90-day limited warranty and available with custom brand programming options for OEM integration. Free standard shipping on orders over $99, with fulfillment from multiple US locations.