FDCIO422, TB-EOL, and FDCIO-EOL series of interface modules and end of the line devices, are approved as a fire detection system accessory, for use in Category 1, 2, and 3 spaces.

FDCIO422, TB-EOL, and FDCIO-EOL series of interface modules and end of the line devices, are approved as a fire detection system accessory, for use in Category 1, 2, and 3 spaces.. FIRE DETECTION SYSTEMS. System Accessory