Soundcraft A520.005000SP 

The MADI I/O card can establish a 64-channel MADI input and output to a remote device such as stage rack, another console or Broadcast feed to an OB.

Optical inputs and outputs are provided on SC connectors available in multi-mode versions only. The auxiliary interface can be used as a redundant link. A Cat5 version of the card is also available. A toggle switch allows the card to be switched from 64ch to 56ch mode for compatibility with older MADI devices.