MDM stands for multiplexer-demultiplexer. It is a piece of network hardware that combines multiple low-speed data streams into a single high-speed aggregate link for transmission, and then separates them back out at the receiving end. This maximizes the efficiency of expensive long-haul fiber or copper lines.
Heard on the job
We need to rack a new MDM at the remote site to handle the extra T1 circuits.
Also heard as
- mux-demux