Alcatel-Lucent 3HE05948AA Switch Fabric Module

Alcatel-Lucent 3HE05948AA Switch Fabric Module (SFM4-12) is a Switch Fabric Module for the Nokia/Alcatel-Lucent 7750 SR service router family, designed for the SR-12 chassis. Labeled 7750 SR SFM4-12 and cataloged as IPUCA2C1TA, it provides the dedicated fabric interconnect that links the router’s modules to support high-throughput, scalable forwarding in carrier networks. In SR-12 deployments, this SFM4-12 is specified as one module per shelf, with capacity for redundancy up to two modules per shelf to cover CPU and fabric paths. The 3HE05948AA designation is the standard part number used in catalogs and refurbishers for SR-12 fabric configurations. This module is a core element of the SR-12 fabric architecture, enabling interconnectivity within the shelf and contributing to reliable service delivery when paired with other SR-12 components. The part is frequently listed by refurbishers and resellers under the same code, illustrating its ongoing relevance in 7750 SR-12 deployments.