Analógový vstupný systém - With which products can I expand a video kit from the Niko Access Control range?

The video kit can be expanded maximally with:

• 1 internal video unit (10-570 or 10-571) with, if necessary, a splitter (10-824-01) OR 3 internal audio units (10-511 or 10-520)
• 1 external audio unit
• 1 DIN-rail relay (10-830 or 10-831)