Cisco GLC-BX-U-I 1000BASE-BX SFP 1310/1490nm | Industrial Temp — GLC-BX-U-I

Maintain reliable Gigabit connectivity where ambient conditions are less forgiving. Cisco GLC-BX-U-I is a 1000BASE-BX SFP designed for bidirectional single-fiber operation, using 1310 nm transmit and 1490 nm receive wavelengths to support efficient point-to-point links over fiber infrastructure. Built for industrial temperature ranges, this module is suited to deployments that extend beyond climate-controlled data centers and into plant floors, utility sites, transportation systems, and outdoor enclosures. The bidirectional design helps reduce fiber strand requirements, which can simplify cabling in constrained environments while preserving the performance expected from Cisco optics. For teams standardizing on Cisco networking hardware, this transceiver offers a practical way to extend Gigabit Ethernet over fiber without changing the switching platform. It is a focused choice for infrastructure that needs dependable optical connectivity, predictable interoperability, and a form factor that fits established SFP-based ports. Ideal For Industrial Ethernet uplinks in manufacturing plants Fiber connectivity in utility and substation enclosures Network extensions across transportation and roadside cabinets Space-constrained single-fiber Gigabit links in edge deployments Why This Product 1 Industrial-temperature rating for harsher operating environments 2 Bidirectional single-fiber design reduces fiber strand requirements 3 Cisco-qualified optics for consistent platform compatibility 4 Gigabit Ethernet support for standard SFP-based uplinks