En Marconi MSH‑64 is a powerful and modular SDH (Synchronous Digital Hierarchy) transport platform designed to serve in high-capacity transmission networks, typically positioned at the metro core, long-haul backbone, or large aggregation points. As one of the flagship models in Marconi’s MSH series, the MSH‑64 was engineered to handle very high volumes of synchronous traffic, supporting multiple STM‑1, STM‑4, and STM‑16 interfaces, with cross-connect capabilities at both VC‑12 and VC‑4 levels.

The platform provides scalable optical transport and grooming capabilities, allowing operators to efficiently consolidate traffic from multiple sites, deliver leased-line services, and support regional or national SDH rings. With its ability to integrate tributary signals from lower-order multiplexers and groom them across higher-capacity trunks, the MSH‑64 became a backbone component in telecom networks across Europe, the Middle East, Asia, and South America.

Designed for mission-critical environments, the MSH‑64 supports high-availability features such as redundant controller and cross-connect cards, hot-swappable modules, and comprehensive protection switching options. Even as modern networks have shifted toward packet-based transport, many service providers still rely on the MSH‑64 to maintain legacy service continuity and meet contractual SLAs for voice and circuit-switched services.

Carritech helps operators extend the lifecycle of their MSH‑64 systems by sourcing tested and verified hardware components—ranging from base shelves and controller units to line cards and optical modules. Our expertise ensures that legacy SDH infrastructures continue to operate efficiently, whether in hybrid environments or in dedicated synchronous networks still in active service.