Keep critical fiber links online with a TAA-compliant 1000BASE-LX SFP designed for Avaya/Nortel environments. This AddOn transceiver supports Gigabit Ethernet over single-mode fiber, making it a practical fit for longer-distance uplinks between switches, distribution closets, and remote network segments. The 1,310 nm optical design and LC connector format align with standard LX deployments, giving infrastructure teams a straightforward replacement or expansion path without changing the surrounding fiber plant. For organizations that need compliant sourcing as well as dependable interoperability, this module helps simplify procurement while preserving network consistency. Compared with lower-cost optics that may be built for narrower compatibility, this transceiver is positioned for teams that value verified fit, predictable deployment, and reduced integration risk. It is a focused choice for extending enterprise networks where the cost of a failed link is far higher than the cost of the module itself.