Does anyone know the difference between the Napco GEM-P3200 and the Napco GEM-P3200EXPCBD.
The listing for this on say it can go up to 48 zones while the model without the EXPCBD supports 32 zones.
The GEM-P3200 can also go up to 24 on board relay outputs while GEM-P3200EXPCBD can go up to 6.