The AddOn Alcatel-Lucent Nokia Compatible 3HE11245AA is a TAA Compliant 1000Base-BX SFP transceiver engineered for long-reach Gigabit Ethernet transmission over single-mode fiber networks. Utilizing Bi-Directional technology, this upstream module transmits at 1490nm and receives at 1570nm, enabling full-duplex communication over a single fiber strand at 1.25 Gbps data rates. With an impressive maximum reach of 80 kilometers (approximately 50 miles), it's ideal for carrier-grade telecommunications, enterprise campus networks, and metropolitan area deployments. The simplex LC connector provides secure single-strand fiber connectivity, while Digital Optical Monitoring support enables real-time performance diagnostics. Operating reliably across temperatures from 0 degrees Celsius to 70 degrees Celsius, this transceiver delivers dependable performance in data centers and network infrastructure environments. As a TAA Compliant module manufactured in the USA or UK, it meets Trade Agreements Act requirements for U.S. Federal Government, military, and GSA-schedule projects. Note: This upstream module must be paired with a compatible downstream counterpart at the opposite end for proper bidirectional link operation.