Alcatel-Lucent 3AL34727AA legacy SDH/PDH transmission Optical Transmission Module

The Alcatel-Lucent 3AL34727AA is an S-16.1 STM-16 short-haul optical aggregate interface card, fitted with an SC/PC fibre connector, designed for Alcatel-Lucent’s legacy SDH transmission shelves. The S-16.1 designation marks this as a short-haul optical variant operating at the STM-16 rate (2.5 Gbit/s), used for high-capacity aggregate links between sites that are close enough not to need the extended optical budget of a long-haul card. It fits into the aggregate slot of a compatible Alcatel-Lucent SDH shelf, carrying multiplexed tributary traffic as the shelf’s optical line-side interface, and terminates to standard single-mode fibre via its SC/PC connector. As a field-replaceable plug-in module, it lets maintenance engineers restore high-capacity aggregate connectivity on an in-service ring without disrupting the rest of the shelf. Tech-Star (UK-based, shipped worldwide) supplies tested Alcatel-Lucent legacy SDH optical spares including this aggregate card. Get in touch with our team to confirm shelf and connector compatibility before ordering.