The FS9100/8 is main output module to where can be connected additional 4 sub FS9100/8.8 output modules creating 40 output pack. FS9100/8 connects to FoxSec main panel directly through CAN dataline. CAN dataline can be up to 1500m (4900 feet). Each module uses an address and it is changeable by dip switch on the pcb. FS9100/8 has 8 relay outputs and all outputs has status LED for quick check on installation.