Nortel AA1419015-E5 BayStack/Ethernet Routing Switch networking and Meridian/DMS-100 telephony Optical Transmission Module

The Nortel AA1419015-E5 is a 1-port 1000Base-LX Small Form Factor Pluggable transceiver, marketed by Nortel under the GBIC family name as a mini-GBIC despite using the smaller SFP form factor and an LC duplex connector rather than the full-size GBIC’s SC connector. Functionally it is identical to the AA1419002-E5 GBIC covered elsewhere in this listing: 1310nm long-wavelength optics over single-mode fibre for longer gigabit uplinks between switches, buildings or wiring closets. Nortel introduced this SFP-badged mini-GBIC naming as its switching platforms transitioned from full-size GBIC ports to the smaller SFP cages, so the two parts are not physically interchangeable despite the shared optical spec. Genuine SFP optics are a routine requirement for maintaining or expanding gigabit uplink capacity on Nortel switches still in service. Confirm your switch takes SFP rather than full-size GBIC before ordering. Tech-Star (UK-based, shipped worldwide) stocks Nortel optics to support ongoing network maintenance projects.