Questions tagged [mdm]

A Multiplexer/Demultiplexer (MDM) is an electronics unit that sends and receives multiple streams of data, and routes all incoming and outgoing data to its correct destination. They're in essence flight computers responsible for such tasks as controlling power, attitude control, environmental control, and communications systems, as well as monitoring of scientific payloads.

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What are the MDM's on the ISS, and how many different kinds are there?

In the prelude for SpaceX CRS-3 mission, the failure of a Multiplexer-Demultiplexer (MDM) on the International Space Station (ISS) seems to be a real concern for launching. In the pre-launch press ...