Marconi Ericsson 131-9344/01 Marconi/Ericsson SMA/OMS/MSH86 SDH transmission systems Optical Transmission Module

The Marconi Ericsson 131-9344/01 is an ID unit for the MSH86 digital cross-connect system, covering hardware issues T3, T6 and T7, that identifies and addresses individual card slots and subracks within an MSH86 installation so the node’s control software can correctly map traffic to the right physical interface. As with the matrix shelf covered elsewhere in this listing, this is part of the MSH86’s shelf-level infrastructure rather than a per-circuit traffic card; the MSH86 performs any-to-any cross-connection between aggregate SDH interfaces for grooming and re-routing, a different function from the SMA and OMS add/drop multiplexer families also covered in this listing, though part of the same GPT/Plessey-derived transmission lineage Marconi sold to Ericsson in 2006. Confirm which of the T3/T6/T7 issues matches your existing MSH86 hardware before ordering, since ID units are tied to specific shelf revisions. Tech-Star (UK-based, shipped worldwide) stocks Marconi Ericsson MSH86 components to support ongoing network maintenance projects.