Avaya/Nortel® AA1419071, AA1419071-E5, AA1419071-E6 compatible 1000Base-EX SFP transceiver (SMF, 1550nm, 120km, LC, DOM). An Avaya/Nortel® SFP transceiver that operates at 1550nm over single-mode fiber, with a maximum reach of 120km connected via a LC connector. This Avaya/Nortel® compatible SFP transceiver has been programmed, uniquely serialized, and data-traffic and application tested to ensure it is 100% compliant and functional. Our SFP transceiver will initialize and perform identically to Avaya/Nortel's transceiver and is built to meet or exceed Avaya/Nortel'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.