The 24.24M Input from Ashley is a four-input expansion module for the Protea 24.24M Matrix Processor base unit. Each card provides an additional four channels of input and brings with it dedicated DSP and analog-to-digital converters.
The card is field installable and require no additional programming from the base unit. Up to five input cards can be installed for a total of twenty-four inputs. Because of the on-board DSP, the base unit's processing is not impacted by the addition of the cards.