EXP-C-24 | Parameter RLE | BAS Controllers

What Functionality Does The 24V Expansion Card C Add To My FMS? Expansion card C adds: 24 digital NO or NC inputs Can I Add An Expansion Card To My FMS? Expansion cards can be added to an FMS at any time – if you order an FMS from the factory with expansion cards, the FMS will ship with the expansion cards installed.  If you have an FMS at your facility that has available unoccupied expansion cards slots, you can order just the cards and install them yourself.  Just follow the step-by-step instructions in the FMS User Guide. The EXP-C-24 can only be used with a 24VDC FMS. A 1U FMS has room for one expansion card. A 2U FMS has room for three expansion cards.