Marconi Ericsson 1HAK60041AHG Marconi/Ericsson SMA/OMS/MSH86 SDH transmission systems Optical Transmission Module

The Marconi Ericsson 1HAK60041AHG is an EXCH/DDI (exchange line / direct dialling-in) interface card for the Marconi C-MUX, a lower-capacity node within the same 1HAx-prefixed SMA-family card numbering as the other Marconi transmission cards in this listing, built for sites needing exchange-line or DDI trunk interfaces dropped from the transmission network rather than the higher-order SDH tributaries the larger SMA shelves handle. The 10CT marking most likely denotes a 10-circuit card variant. C-MUX equipment sits at the smaller end of the same GPT/Plessey-derived transmission product family that Marconi took to market and later sold to Ericsson in 2006, alongside the SMA and OMS ranges covered elsewhere in this listing. Genuine C-MUX cards are needed to keep an existing installation’s exchange-line interfaces working, since the platform is long out of production. Confirm the exact card issue and circuit count your installation needs before ordering. Tech-Star (UK-based, shipped worldwide) stocks Marconi Ericsson components to support ongoing network maintenance projects.