Alcatel 3EM15001AC-01 SCM Card

Alcatel 3EM15001AC-01 SCM Card is a System Controller Module (SCM) card for 1677-series Alcatel‑Lucent/Nokia equipment, serving as the dedicated control component on the system controller backplane. In retailer listings, this SCM card is associated with the WMUCA1ZBAA 1677 SCM Card designation and with related identifiers such as WMUCAD1 in 1677 SL module configurations, reflecting revisions within the same SCM card family used across deployments. As a component that plugs into the 1677 SL module backplane, it plays a role in the overall system controller architecture by providing the required control interface for the pair of modules that manage the legacy telecom hardware. Public listings describe the part as 3EM15001AC-01 SCM Card for 1677 SL configurations, underscoring its place as a replaceable card within Alcatel‑Nokia legacy network infrastructure.