Alcatel-Lucent 3AL34066AA legacy SDH/PDH transmission Telecom System Card / Module

The Alcatel-Lucent 3AL34066AA is a 140 Mbit/s and STM-1 interface card used within Alcatel-Lucent’s legacy PDH/SDH transmission equipment shelves. This card handles interfacing at both the 140 Mbit/s PDH rate and the STM-1 (155 Mbit/s) SDH rate, giving the host shelf flexibility to interconnect traffic between plesiochronous and synchronous transmission domains, a common requirement on access and metro rings that were migrated from PDH to SDH in stages. As with other cards in the Alcatel-Lucent 1641SM-family product line, the 3AL34066AA is a field-replaceable plug-in module, designed to be swapped into a live shelf during maintenance without disrupting the rest of the traffic passing through it. Operators still running these legacy transmission rings rely on tested secondary-market spares of exactly this kind to keep circuits in service while planning longer-term platform upgrades. Tech-Star (UK-based, shipped worldwide) supplies tested Alcatel-Lucent transmission spares including this 140Mbit/STM-1 card. Get in touch with our team to confirm shelf and interface compatibility before ordering.