AdTran速 1442140G1 compatible 1000Base-BX SFP transceiver (SMF, 1490nmTx/1310nmRx, 40km, LC). A 100% AdTran速 compatible SFP transceiver that operates at 1490nmTx/1310nmRx over single-mode fiber, with a maximum reach of 40km connected via a LC connector. This AdTran速 SFP transceiver is 100% compliant with its designed networking application, and is factory programmed with AdTran速 specific configuration data required for seamless networking integration. This SFP transceiver will initialize and perform identically to AdTran's transceiver and is built to meet or exceed AdTran's specifications, and comply with MSA (Multi-Source Agreement) standards. The actual part shipped may have a different part number, but will be functionally identical and 100% compatible. Trade Agreements Act (TAA) versions of this part are available.