Marconi Ericsson 133-1467/01 Marconi/Ericsson SMA/OMS/MSH86 SDH transmission systems Optical Transmission Module

The Marconi Ericsson 133-1467/01 is a matrix shelf for the MSH86 digital cross-connect system, the chassis that houses the switching-matrix and interface cards a MSH86 node uses to cross-connect SDH traffic streams between aggregate ports for grooming or re-routing. Unlike the SMA and OMS families also covered in this listing, which are add/drop multiplexers built around fixed ring topologies, the MSH86 performs any-to-any cross-connection between multiple aggregate interfaces, a distinct network function within the same GPT/Plessey-derived transmission lineage that Marconi sold to Ericsson in 2006. A matrix shelf on its own is the mechanical/backplane structure a node’s cards fit into rather than a traffic-carrying card, so replacing one is typically a chassis-level repair or a spare-node build rather than a routine card swap. MSH86 nodes remain in service on UK transmission networks needing SDH grooming or cross-connect capability. Confirm your exact shelf variant and card complement before ordering. Tech-Star (UK-based, shipped worldwide) stocks Marconi Ericsson MSH86 components to support ongoing network maintenance projects.