The Native AUX Output Card (NAC) provides eight SD/HD/3G SDI outputs, in addition to the six native AUX outputs on the M/E card. You can install up to three NACs in the FSN-1400, enabling the system to be equipped with up to 30 native AUX outputs.
Using the Aux section on the control panel or the Aux Menu, any FSN output or any signal from the internal crosspoint matrix can be assigned to any NAC AUX output.